/* based on pieces from si_pipe.c and radeon_llvm_emit.c */
#include "ac_llvm_build.h"
-#include <llvm-c/Core.h>
-#include <llvm/Config/llvm-config.h>
-
-#include "c11/threads.h"
-
-#include <assert.h>
-#include <stdio.h>
-
+#include "ac_exp_param.h"
#include "ac_llvm_util.h"
#include "ac_shader_util.h"
-#include "ac_exp_param.h"
+#include "c11/threads.h"
+#include "shader_enums.h"
+#include "sid.h"
#include "util/bitscan.h"
#include "util/macros.h"
#include "util/u_atomic.h"
#include "util/u_math.h"
-#include "sid.h"
+#include <llvm-c/Core.h>
+#include <llvm/Config/llvm-config.h>
-#include "shader_enums.h"
+#include <assert.h>
+#include <stdio.h>
#define AC_LLVM_INITIAL_CF_DEPTH 4
/* Data for if/else/endif and bgnloop/endloop control flow structures.
*/
struct ac_llvm_flow {
- /* Loop exit or next part of if/else/endif. */
- LLVMBasicBlockRef next_block;
- LLVMBasicBlockRef loop_entry_block;
+ /* Loop exit or next part of if/else/endif. */
+ LLVMBasicBlockRef next_block;
+ LLVMBasicBlockRef loop_entry_block;
};
/* Initialize module-independent parts of the context.
*
* The caller is responsible for initializing ctx::module and ctx::builder.
*/
-void
-ac_llvm_context_init(struct ac_llvm_context *ctx,
- struct ac_llvm_compiler *compiler,
- enum chip_class chip_class, enum radeon_family family,
- enum ac_float_mode float_mode, unsigned wave_size,
- unsigned ballot_mask_bits)
-{
- LLVMValueRef args[1];
-
- ctx->context = LLVMContextCreate();
-
- ctx->chip_class = chip_class;
- ctx->family = family;
- ctx->wave_size = wave_size;
- ctx->ballot_mask_bits = ballot_mask_bits;
- ctx->float_mode = float_mode;
- ctx->module = ac_create_module(wave_size == 32 ? compiler->tm_wave32
- : compiler->tm,
- ctx->context);
- ctx->builder = ac_create_builder(ctx->context, float_mode);
-
- ctx->voidt = LLVMVoidTypeInContext(ctx->context);
- ctx->i1 = LLVMInt1TypeInContext(ctx->context);
- ctx->i8 = LLVMInt8TypeInContext(ctx->context);
- ctx->i16 = LLVMIntTypeInContext(ctx->context, 16);
- ctx->i32 = LLVMIntTypeInContext(ctx->context, 32);
- ctx->i64 = LLVMIntTypeInContext(ctx->context, 64);
- ctx->i128 = LLVMIntTypeInContext(ctx->context, 128);
- ctx->intptr = ctx->i32;
- ctx->f16 = LLVMHalfTypeInContext(ctx->context);
- ctx->f32 = LLVMFloatTypeInContext(ctx->context);
- ctx->f64 = LLVMDoubleTypeInContext(ctx->context);
- ctx->v2i16 = LLVMVectorType(ctx->i16, 2);
- ctx->v2i32 = LLVMVectorType(ctx->i32, 2);
- ctx->v3i32 = LLVMVectorType(ctx->i32, 3);
- ctx->v4i32 = LLVMVectorType(ctx->i32, 4);
- ctx->v2f32 = LLVMVectorType(ctx->f32, 2);
- ctx->v3f32 = LLVMVectorType(ctx->f32, 3);
- ctx->v4f32 = LLVMVectorType(ctx->f32, 4);
- ctx->v8i32 = LLVMVectorType(ctx->i32, 8);
- ctx->iN_wavemask = LLVMIntTypeInContext(ctx->context, ctx->wave_size);
- ctx->iN_ballotmask = LLVMIntTypeInContext(ctx->context, ballot_mask_bits);
-
- ctx->i8_0 = LLVMConstInt(ctx->i8, 0, false);
- ctx->i8_1 = LLVMConstInt(ctx->i8, 1, false);
- ctx->i16_0 = LLVMConstInt(ctx->i16, 0, false);
- ctx->i16_1 = LLVMConstInt(ctx->i16, 1, false);
- ctx->i32_0 = LLVMConstInt(ctx->i32, 0, false);
- ctx->i32_1 = LLVMConstInt(ctx->i32, 1, false);
- ctx->i64_0 = LLVMConstInt(ctx->i64, 0, false);
- ctx->i64_1 = LLVMConstInt(ctx->i64, 1, false);
- ctx->i128_0 = LLVMConstInt(ctx->i128, 0, false);
- ctx->i128_1 = LLVMConstInt(ctx->i128, 1, false);
- ctx->f16_0 = LLVMConstReal(ctx->f16, 0.0);
- ctx->f16_1 = LLVMConstReal(ctx->f16, 1.0);
- ctx->f32_0 = LLVMConstReal(ctx->f32, 0.0);
- ctx->f32_1 = LLVMConstReal(ctx->f32, 1.0);
- ctx->f64_0 = LLVMConstReal(ctx->f64, 0.0);
- ctx->f64_1 = LLVMConstReal(ctx->f64, 1.0);
-
- ctx->i1false = LLVMConstInt(ctx->i1, 0, false);
- ctx->i1true = LLVMConstInt(ctx->i1, 1, false);
-
- ctx->range_md_kind = LLVMGetMDKindIDInContext(ctx->context,
- "range", 5);
-
- ctx->invariant_load_md_kind = LLVMGetMDKindIDInContext(ctx->context,
- "invariant.load", 14);
-
- ctx->fpmath_md_kind = LLVMGetMDKindIDInContext(ctx->context, "fpmath", 6);
-
- args[0] = LLVMConstReal(ctx->f32, 2.5);
- ctx->fpmath_md_2p5_ulp = LLVMMDNodeInContext(ctx->context, args, 1);
-
- ctx->uniform_md_kind = LLVMGetMDKindIDInContext(ctx->context,
- "amdgpu.uniform", 14);
-
- ctx->empty_md = LLVMMDNodeInContext(ctx->context, NULL, 0);
- ctx->flow = calloc(1, sizeof(*ctx->flow));
-}
-
-void
-ac_llvm_context_dispose(struct ac_llvm_context *ctx)
-{
- free(ctx->flow->stack);
- free(ctx->flow);
- ctx->flow = NULL;
-}
-
-int
-ac_get_llvm_num_components(LLVMValueRef value)
-{
- LLVMTypeRef type = LLVMTypeOf(value);
- unsigned num_components = LLVMGetTypeKind(type) == LLVMVectorTypeKind
- ? LLVMGetVectorSize(type)
- : 1;
- return num_components;
-}
-
-LLVMValueRef
-ac_llvm_extract_elem(struct ac_llvm_context *ac,
- LLVMValueRef value,
- int index)
-{
- if (LLVMGetTypeKind(LLVMTypeOf(value)) != LLVMVectorTypeKind) {
- assert(index == 0);
- return value;
- }
-
- return LLVMBuildExtractElement(ac->builder, value,
- LLVMConstInt(ac->i32, index, false), "");
-}
-
-int
-ac_get_elem_bits(struct ac_llvm_context *ctx, LLVMTypeRef type)
-{
- if (LLVMGetTypeKind(type) == LLVMVectorTypeKind)
- type = LLVMGetElementType(type);
-
- if (LLVMGetTypeKind(type) == LLVMIntegerTypeKind)
- return LLVMGetIntTypeWidth(type);
-
- if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) {
- if (LLVMGetPointerAddressSpace(type) == AC_ADDR_SPACE_LDS)
- return 32;
- }
-
- if (type == ctx->f16)
- return 16;
- if (type == ctx->f32)
- return 32;
- if (type == ctx->f64)
- return 64;
-
- unreachable("Unhandled type kind in get_elem_bits");
-}
-
-unsigned
-ac_get_type_size(LLVMTypeRef type)
-{
- LLVMTypeKind kind = LLVMGetTypeKind(type);
-
- switch (kind) {
- case LLVMIntegerTypeKind:
- return LLVMGetIntTypeWidth(type) / 8;
- case LLVMHalfTypeKind:
- return 2;
- case LLVMFloatTypeKind:
- return 4;
- case LLVMDoubleTypeKind:
- return 8;
- case LLVMPointerTypeKind:
- if (LLVMGetPointerAddressSpace(type) == AC_ADDR_SPACE_CONST_32BIT)
- return 4;
- return 8;
- case LLVMVectorTypeKind:
- return LLVMGetVectorSize(type) *
- ac_get_type_size(LLVMGetElementType(type));
- case LLVMArrayTypeKind:
- return LLVMGetArrayLength(type) *
- ac_get_type_size(LLVMGetElementType(type));
- default:
- assert(0);
- return 0;
- }
+void ac_llvm_context_init(struct ac_llvm_context *ctx, struct ac_llvm_compiler *compiler,
+ enum chip_class chip_class, enum radeon_family family,
+ enum ac_float_mode float_mode, unsigned wave_size,
+ unsigned ballot_mask_bits)
+{
+ ctx->context = LLVMContextCreate();
+
+ ctx->chip_class = chip_class;
+ ctx->family = family;
+ ctx->wave_size = wave_size;
+ ctx->ballot_mask_bits = ballot_mask_bits;
+ ctx->float_mode = float_mode;
+ ctx->module =
+ ac_create_module(wave_size == 32 ? compiler->tm_wave32 : compiler->tm, ctx->context);
+ ctx->builder = ac_create_builder(ctx->context, float_mode);
+
+ ctx->voidt = LLVMVoidTypeInContext(ctx->context);
+ ctx->i1 = LLVMInt1TypeInContext(ctx->context);
+ ctx->i8 = LLVMInt8TypeInContext(ctx->context);
+ ctx->i16 = LLVMIntTypeInContext(ctx->context, 16);
+ ctx->i32 = LLVMIntTypeInContext(ctx->context, 32);
+ ctx->i64 = LLVMIntTypeInContext(ctx->context, 64);
+ ctx->i128 = LLVMIntTypeInContext(ctx->context, 128);
+ ctx->intptr = ctx->i32;
+ ctx->f16 = LLVMHalfTypeInContext(ctx->context);
+ ctx->f32 = LLVMFloatTypeInContext(ctx->context);
+ ctx->f64 = LLVMDoubleTypeInContext(ctx->context);
+ ctx->v2i16 = LLVMVectorType(ctx->i16, 2);
+ ctx->v4i16 = LLVMVectorType(ctx->i16, 4);
+ ctx->v2f16 = LLVMVectorType(ctx->f16, 2);
+ ctx->v4f16 = LLVMVectorType(ctx->f16, 4);
+ ctx->v2i32 = LLVMVectorType(ctx->i32, 2);
+ ctx->v3i32 = LLVMVectorType(ctx->i32, 3);
+ ctx->v4i32 = LLVMVectorType(ctx->i32, 4);
+ ctx->v2f32 = LLVMVectorType(ctx->f32, 2);
+ ctx->v3f32 = LLVMVectorType(ctx->f32, 3);
+ ctx->v4f32 = LLVMVectorType(ctx->f32, 4);
+ ctx->v8i32 = LLVMVectorType(ctx->i32, 8);
+ ctx->iN_wavemask = LLVMIntTypeInContext(ctx->context, ctx->wave_size);
+ ctx->iN_ballotmask = LLVMIntTypeInContext(ctx->context, ballot_mask_bits);
+
+ ctx->i8_0 = LLVMConstInt(ctx->i8, 0, false);
+ ctx->i8_1 = LLVMConstInt(ctx->i8, 1, false);
+ ctx->i16_0 = LLVMConstInt(ctx->i16, 0, false);
+ ctx->i16_1 = LLVMConstInt(ctx->i16, 1, false);
+ ctx->i32_0 = LLVMConstInt(ctx->i32, 0, false);
+ ctx->i32_1 = LLVMConstInt(ctx->i32, 1, false);
+ ctx->i64_0 = LLVMConstInt(ctx->i64, 0, false);
+ ctx->i64_1 = LLVMConstInt(ctx->i64, 1, false);
+ ctx->i128_0 = LLVMConstInt(ctx->i128, 0, false);
+ ctx->i128_1 = LLVMConstInt(ctx->i128, 1, false);
+ ctx->f16_0 = LLVMConstReal(ctx->f16, 0.0);
+ ctx->f16_1 = LLVMConstReal(ctx->f16, 1.0);
+ ctx->f32_0 = LLVMConstReal(ctx->f32, 0.0);
+ ctx->f32_1 = LLVMConstReal(ctx->f32, 1.0);
+ ctx->f64_0 = LLVMConstReal(ctx->f64, 0.0);
+ ctx->f64_1 = LLVMConstReal(ctx->f64, 1.0);
+
+ ctx->i1false = LLVMConstInt(ctx->i1, 0, false);
+ ctx->i1true = LLVMConstInt(ctx->i1, 1, false);
+
+ ctx->range_md_kind = LLVMGetMDKindIDInContext(ctx->context, "range", 5);
+
+ ctx->invariant_load_md_kind = LLVMGetMDKindIDInContext(ctx->context, "invariant.load", 14);
+
+ ctx->uniform_md_kind = LLVMGetMDKindIDInContext(ctx->context, "amdgpu.uniform", 14);
+
+ ctx->empty_md = LLVMMDNodeInContext(ctx->context, NULL, 0);
+ ctx->flow = calloc(1, sizeof(*ctx->flow));
+}
+
+void ac_llvm_context_dispose(struct ac_llvm_context *ctx)
+{
+ free(ctx->flow->stack);
+ free(ctx->flow);
+ ctx->flow = NULL;
+}
+
+int ac_get_llvm_num_components(LLVMValueRef value)
+{
+ LLVMTypeRef type = LLVMTypeOf(value);
+ unsigned num_components =
+ LLVMGetTypeKind(type) == LLVMVectorTypeKind ? LLVMGetVectorSize(type) : 1;
+ return num_components;
+}
+
+LLVMValueRef ac_llvm_extract_elem(struct ac_llvm_context *ac, LLVMValueRef value, int index)
+{
+ if (LLVMGetTypeKind(LLVMTypeOf(value)) != LLVMVectorTypeKind) {
+ assert(index == 0);
+ return value;
+ }
+
+ return LLVMBuildExtractElement(ac->builder, value, LLVMConstInt(ac->i32, index, false), "");
+}
+
+int ac_get_elem_bits(struct ac_llvm_context *ctx, LLVMTypeRef type)
+{
+ if (LLVMGetTypeKind(type) == LLVMVectorTypeKind)
+ type = LLVMGetElementType(type);
+
+ if (LLVMGetTypeKind(type) == LLVMIntegerTypeKind)
+ return LLVMGetIntTypeWidth(type);
+
+ if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) {
+ if (LLVMGetPointerAddressSpace(type) == AC_ADDR_SPACE_LDS)
+ return 32;
+ }
+
+ if (type == ctx->f16)
+ return 16;
+ if (type == ctx->f32)
+ return 32;
+ if (type == ctx->f64)
+ return 64;
+
+ unreachable("Unhandled type kind in get_elem_bits");
+}
+
+unsigned ac_get_type_size(LLVMTypeRef type)
+{
+ LLVMTypeKind kind = LLVMGetTypeKind(type);
+
+ switch (kind) {
+ case LLVMIntegerTypeKind:
+ return LLVMGetIntTypeWidth(type) / 8;
+ case LLVMHalfTypeKind:
+ return 2;
+ case LLVMFloatTypeKind:
+ return 4;
+ case LLVMDoubleTypeKind:
+ return 8;
+ case LLVMPointerTypeKind:
+ if (LLVMGetPointerAddressSpace(type) == AC_ADDR_SPACE_CONST_32BIT)
+ return 4;
+ return 8;
+ case LLVMVectorTypeKind:
+ return LLVMGetVectorSize(type) * ac_get_type_size(LLVMGetElementType(type));
+ case LLVMArrayTypeKind:
+ return LLVMGetArrayLength(type) * ac_get_type_size(LLVMGetElementType(type));
+ default:
+ assert(0);
+ return 0;
+ }
}
static LLVMTypeRef to_integer_type_scalar(struct ac_llvm_context *ctx, LLVMTypeRef t)
{
- if (t == ctx->i8)
- return ctx->i8;
- else if (t == ctx->f16 || t == ctx->i16)
- return ctx->i16;
- else if (t == ctx->f32 || t == ctx->i32)
- return ctx->i32;
- else if (t == ctx->f64 || t == ctx->i64)
- return ctx->i64;
- else
- unreachable("Unhandled integer size");
-}
-
-LLVMTypeRef
-ac_to_integer_type(struct ac_llvm_context *ctx, LLVMTypeRef t)
-{
- if (LLVMGetTypeKind(t) == LLVMVectorTypeKind) {
- LLVMTypeRef elem_type = LLVMGetElementType(t);
- return LLVMVectorType(to_integer_type_scalar(ctx, elem_type),
- LLVMGetVectorSize(t));
- }
- if (LLVMGetTypeKind(t) == LLVMPointerTypeKind) {
- switch (LLVMGetPointerAddressSpace(t)) {
- case AC_ADDR_SPACE_GLOBAL:
- return ctx->i64;
- case AC_ADDR_SPACE_CONST_32BIT:
- case AC_ADDR_SPACE_LDS:
- return ctx->i32;
- default:
- unreachable("unhandled address space");
- }
- }
- return to_integer_type_scalar(ctx, t);
-}
-
-LLVMValueRef
-ac_to_integer(struct ac_llvm_context *ctx, LLVMValueRef v)
-{
- LLVMTypeRef type = LLVMTypeOf(v);
- if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) {
- return LLVMBuildPtrToInt(ctx->builder, v, ac_to_integer_type(ctx, type), "");
- }
- return LLVMBuildBitCast(ctx->builder, v, ac_to_integer_type(ctx, type), "");
-}
-
-LLVMValueRef
-ac_to_integer_or_pointer(struct ac_llvm_context *ctx, LLVMValueRef v)
-{
- LLVMTypeRef type = LLVMTypeOf(v);
- if (LLVMGetTypeKind(type) == LLVMPointerTypeKind)
- return v;
- return ac_to_integer(ctx, v);
+ if (t == ctx->i8)
+ return ctx->i8;
+ else if (t == ctx->f16 || t == ctx->i16)
+ return ctx->i16;
+ else if (t == ctx->f32 || t == ctx->i32)
+ return ctx->i32;
+ else if (t == ctx->f64 || t == ctx->i64)
+ return ctx->i64;
+ else
+ unreachable("Unhandled integer size");
}
-static LLVMTypeRef to_float_type_scalar(struct ac_llvm_context *ctx, LLVMTypeRef t)
+LLVMTypeRef ac_to_integer_type(struct ac_llvm_context *ctx, LLVMTypeRef t)
{
- if (t == ctx->i8)
- return ctx->i8;
- else if (t == ctx->i16 || t == ctx->f16)
- return ctx->f16;
- else if (t == ctx->i32 || t == ctx->f32)
- return ctx->f32;
- else if (t == ctx->i64 || t == ctx->f64)
- return ctx->f64;
- else
- unreachable("Unhandled float size");
+ if (LLVMGetTypeKind(t) == LLVMVectorTypeKind) {
+ LLVMTypeRef elem_type = LLVMGetElementType(t);
+ return LLVMVectorType(to_integer_type_scalar(ctx, elem_type), LLVMGetVectorSize(t));
+ }
+ if (LLVMGetTypeKind(t) == LLVMPointerTypeKind) {
+ switch (LLVMGetPointerAddressSpace(t)) {
+ case AC_ADDR_SPACE_GLOBAL:
+ return ctx->i64;
+ case AC_ADDR_SPACE_CONST_32BIT:
+ case AC_ADDR_SPACE_LDS:
+ return ctx->i32;
+ default:
+ unreachable("unhandled address space");
+ }
+ }
+ return to_integer_type_scalar(ctx, t);
}
-LLVMTypeRef
-ac_to_float_type(struct ac_llvm_context *ctx, LLVMTypeRef t)
+LLVMValueRef ac_to_integer(struct ac_llvm_context *ctx, LLVMValueRef v)
{
- if (LLVMGetTypeKind(t) == LLVMVectorTypeKind) {
- LLVMTypeRef elem_type = LLVMGetElementType(t);
- return LLVMVectorType(to_float_type_scalar(ctx, elem_type),
- LLVMGetVectorSize(t));
- }
- return to_float_type_scalar(ctx, t);
+ LLVMTypeRef type = LLVMTypeOf(v);
+ if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) {
+ return LLVMBuildPtrToInt(ctx->builder, v, ac_to_integer_type(ctx, type), "");
+ }
+ return LLVMBuildBitCast(ctx->builder, v, ac_to_integer_type(ctx, type), "");
}
-LLVMValueRef
-ac_to_float(struct ac_llvm_context *ctx, LLVMValueRef v)
+LLVMValueRef ac_to_integer_or_pointer(struct ac_llvm_context *ctx, LLVMValueRef v)
{
- LLVMTypeRef type = LLVMTypeOf(v);
- return LLVMBuildBitCast(ctx->builder, v, ac_to_float_type(ctx, type), "");
+ LLVMTypeRef type = LLVMTypeOf(v);
+ if (LLVMGetTypeKind(type) == LLVMPointerTypeKind)
+ return v;
+ return ac_to_integer(ctx, v);
}
+static LLVMTypeRef to_float_type_scalar(struct ac_llvm_context *ctx, LLVMTypeRef t)
+{
+ if (t == ctx->i8)
+ return ctx->i8;
+ else if (t == ctx->i16 || t == ctx->f16)
+ return ctx->f16;
+ else if (t == ctx->i32 || t == ctx->f32)
+ return ctx->f32;
+ else if (t == ctx->i64 || t == ctx->f64)
+ return ctx->f64;
+ else
+ unreachable("Unhandled float size");
+}
-LLVMValueRef
-ac_build_intrinsic(struct ac_llvm_context *ctx, const char *name,
- LLVMTypeRef return_type, LLVMValueRef *params,
- unsigned param_count, unsigned attrib_mask)
+LLVMTypeRef ac_to_float_type(struct ac_llvm_context *ctx, LLVMTypeRef t)
{
- LLVMValueRef function, call;
- bool set_callsite_attrs = !(attrib_mask & AC_FUNC_ATTR_LEGACY);
+ if (LLVMGetTypeKind(t) == LLVMVectorTypeKind) {
+ LLVMTypeRef elem_type = LLVMGetElementType(t);
+ return LLVMVectorType(to_float_type_scalar(ctx, elem_type), LLVMGetVectorSize(t));
+ }
+ return to_float_type_scalar(ctx, t);
+}
- function = LLVMGetNamedFunction(ctx->module, name);
- if (!function) {
- LLVMTypeRef param_types[32], function_type;
- unsigned i;
+LLVMValueRef ac_to_float(struct ac_llvm_context *ctx, LLVMValueRef v)
+{
+ LLVMTypeRef type = LLVMTypeOf(v);
+ return LLVMBuildBitCast(ctx->builder, v, ac_to_float_type(ctx, type), "");
+}
- assert(param_count <= 32);
+LLVMValueRef ac_build_intrinsic(struct ac_llvm_context *ctx, const char *name,
+ LLVMTypeRef return_type, LLVMValueRef *params, unsigned param_count,
+ unsigned attrib_mask)
+{
+ LLVMValueRef function, call;
+ bool set_callsite_attrs = !(attrib_mask & AC_FUNC_ATTR_LEGACY);
- for (i = 0; i < param_count; ++i) {
- assert(params[i]);
- param_types[i] = LLVMTypeOf(params[i]);
- }
- function_type =
- LLVMFunctionType(return_type, param_types, param_count, 0);
- function = LLVMAddFunction(ctx->module, name, function_type);
+ function = LLVMGetNamedFunction(ctx->module, name);
+ if (!function) {
+ LLVMTypeRef param_types[32], function_type;
+ unsigned i;
- LLVMSetFunctionCallConv(function, LLVMCCallConv);
- LLVMSetLinkage(function, LLVMExternalLinkage);
+ assert(param_count <= 32);
- if (!set_callsite_attrs)
- ac_add_func_attributes(ctx->context, function, attrib_mask);
- }
+ for (i = 0; i < param_count; ++i) {
+ assert(params[i]);
+ param_types[i] = LLVMTypeOf(params[i]);
+ }
+ function_type = LLVMFunctionType(return_type, param_types, param_count, 0);
+ function = LLVMAddFunction(ctx->module, name, function_type);
- call = LLVMBuildCall(ctx->builder, function, params, param_count, "");
- if (set_callsite_attrs)
- ac_add_func_attributes(ctx->context, call, attrib_mask);
- return call;
+ LLVMSetFunctionCallConv(function, LLVMCCallConv);
+ LLVMSetLinkage(function, LLVMExternalLinkage);
+
+ if (!set_callsite_attrs)
+ ac_add_func_attributes(ctx->context, function, attrib_mask);
+ }
+
+ call = LLVMBuildCall(ctx->builder, function, params, param_count, "");
+ if (set_callsite_attrs)
+ ac_add_func_attributes(ctx->context, call, attrib_mask);
+ return call;
}
/**
*/
void ac_build_type_name_for_intr(LLVMTypeRef type, char *buf, unsigned bufsize)
{
- LLVMTypeRef elem_type = type;
-
- assert(bufsize >= 8);
-
- if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) {
- int ret = snprintf(buf, bufsize, "v%u",
- LLVMGetVectorSize(type));
- if (ret < 0) {
- char *type_name = LLVMPrintTypeToString(type);
- fprintf(stderr, "Error building type name for: %s\n",
- type_name);
- LLVMDisposeMessage(type_name);
- return;
- }
- elem_type = LLVMGetElementType(type);
- buf += ret;
- bufsize -= ret;
- }
- switch (LLVMGetTypeKind(elem_type)) {
- default: break;
- case LLVMIntegerTypeKind:
- snprintf(buf, bufsize, "i%d", LLVMGetIntTypeWidth(elem_type));
- break;
- case LLVMHalfTypeKind:
- snprintf(buf, bufsize, "f16");
- break;
- case LLVMFloatTypeKind:
- snprintf(buf, bufsize, "f32");
- break;
- case LLVMDoubleTypeKind:
- snprintf(buf, bufsize, "f64");
- break;
- }
+ LLVMTypeRef elem_type = type;
+
+ assert(bufsize >= 8);
+
+ if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) {
+ int ret = snprintf(buf, bufsize, "v%u", LLVMGetVectorSize(type));
+ if (ret < 0) {
+ char *type_name = LLVMPrintTypeToString(type);
+ fprintf(stderr, "Error building type name for: %s\n", type_name);
+ LLVMDisposeMessage(type_name);
+ return;
+ }
+ elem_type = LLVMGetElementType(type);
+ buf += ret;
+ bufsize -= ret;
+ }
+ switch (LLVMGetTypeKind(elem_type)) {
+ default:
+ break;
+ case LLVMIntegerTypeKind:
+ snprintf(buf, bufsize, "i%d", LLVMGetIntTypeWidth(elem_type));
+ break;
+ case LLVMHalfTypeKind:
+ snprintf(buf, bufsize, "f16");
+ break;
+ case LLVMFloatTypeKind:
+ snprintf(buf, bufsize, "f32");
+ break;
+ case LLVMDoubleTypeKind:
+ snprintf(buf, bufsize, "f64");
+ break;
+ }
}
/**
* Helper function that builds an LLVM IR PHI node and immediately adds
* incoming edges.
*/
-LLVMValueRef
-ac_build_phi(struct ac_llvm_context *ctx, LLVMTypeRef type,
- unsigned count_incoming, LLVMValueRef *values,
- LLVMBasicBlockRef *blocks)
+LLVMValueRef ac_build_phi(struct ac_llvm_context *ctx, LLVMTypeRef type, unsigned count_incoming,
+ LLVMValueRef *values, LLVMBasicBlockRef *blocks)
{
- LLVMValueRef phi = LLVMBuildPhi(ctx->builder, type, "");
- LLVMAddIncoming(phi, values, blocks, count_incoming);
- return phi;
+ LLVMValueRef phi = LLVMBuildPhi(ctx->builder, type, "");
+ LLVMAddIncoming(phi, values, blocks, count_incoming);
+ return phi;
}
void ac_build_s_barrier(struct ac_llvm_context *ctx)
{
- ac_build_intrinsic(ctx, "llvm.amdgcn.s.barrier", ctx->voidt, NULL,
- 0, AC_FUNC_ATTR_CONVERGENT);
+ ac_build_intrinsic(ctx, "llvm.amdgcn.s.barrier", ctx->voidt, NULL, 0, AC_FUNC_ATTR_CONVERGENT);
}
/* Prevent optimizations (at least of memory accesses) across the current
* Optionally, a value can be passed through the inline assembly to prevent
* LLVM from hoisting calls to ReadNone functions.
*/
-void
-ac_build_optimization_barrier(struct ac_llvm_context *ctx,
- LLVMValueRef *pvgpr)
-{
- static int counter = 0;
-
- LLVMBuilderRef builder = ctx->builder;
- char code[16];
-
- snprintf(code, sizeof(code), "; %d", p_atomic_inc_return(&counter));
-
- if (!pvgpr) {
- LLVMTypeRef ftype = LLVMFunctionType(ctx->voidt, NULL, 0, false);
- LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, code, "", true, false);
- LLVMBuildCall(builder, inlineasm, NULL, 0, "");
- } else {
- LLVMTypeRef ftype = LLVMFunctionType(ctx->i32, &ctx->i32, 1, false);
- LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, code, "=v,0", true, false);
- LLVMTypeRef type = LLVMTypeOf(*pvgpr);
- unsigned bitsize = ac_get_elem_bits(ctx, type);
- LLVMValueRef vgpr = *pvgpr;
- LLVMTypeRef vgpr_type;
- unsigned vgpr_size;
- LLVMValueRef vgpr0;
+void ac_build_optimization_barrier(struct ac_llvm_context *ctx, LLVMValueRef *pvgpr)
+{
+ static int counter = 0;
- if (bitsize < 32)
- vgpr = LLVMBuildZExt(ctx->builder, vgpr, ctx->i32, "");
+ LLVMBuilderRef builder = ctx->builder;
+ char code[16];
- vgpr_type = LLVMTypeOf(vgpr);
- vgpr_size = ac_get_type_size(vgpr_type);
+ snprintf(code, sizeof(code), "; %d", p_atomic_inc_return(&counter));
- assert(vgpr_size % 4 == 0);
+ if (!pvgpr) {
+ LLVMTypeRef ftype = LLVMFunctionType(ctx->voidt, NULL, 0, false);
+ LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, code, "", true, false);
+ LLVMBuildCall(builder, inlineasm, NULL, 0, "");
+ } else {
+ LLVMTypeRef ftype = LLVMFunctionType(ctx->i32, &ctx->i32, 1, false);
+ LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, code, "=v,0", true, false);
+ LLVMTypeRef type = LLVMTypeOf(*pvgpr);
+ unsigned bitsize = ac_get_elem_bits(ctx, type);
+ LLVMValueRef vgpr = *pvgpr;
+ LLVMTypeRef vgpr_type;
+ unsigned vgpr_size;
+ LLVMValueRef vgpr0;
- vgpr = LLVMBuildBitCast(builder, vgpr, LLVMVectorType(ctx->i32, vgpr_size / 4), "");
- vgpr0 = LLVMBuildExtractElement(builder, vgpr, ctx->i32_0, "");
- vgpr0 = LLVMBuildCall(builder, inlineasm, &vgpr0, 1, "");
- vgpr = LLVMBuildInsertElement(builder, vgpr, vgpr0, ctx->i32_0, "");
- vgpr = LLVMBuildBitCast(builder, vgpr, vgpr_type, "");
+ if (bitsize < 32)
+ vgpr = LLVMBuildZExt(ctx->builder, vgpr, ctx->i32, "");
- if (bitsize < 32)
- vgpr = LLVMBuildTrunc(builder, vgpr, type, "");
+ vgpr_type = LLVMTypeOf(vgpr);
+ vgpr_size = ac_get_type_size(vgpr_type);
- *pvgpr = vgpr;
- }
+ assert(vgpr_size % 4 == 0);
+
+ vgpr = LLVMBuildBitCast(builder, vgpr, LLVMVectorType(ctx->i32, vgpr_size / 4), "");
+ vgpr0 = LLVMBuildExtractElement(builder, vgpr, ctx->i32_0, "");
+ vgpr0 = LLVMBuildCall(builder, inlineasm, &vgpr0, 1, "");
+ vgpr = LLVMBuildInsertElement(builder, vgpr, vgpr0, ctx->i32_0, "");
+ vgpr = LLVMBuildBitCast(builder, vgpr, vgpr_type, "");
+
+ if (bitsize < 32)
+ vgpr = LLVMBuildTrunc(builder, vgpr, type, "");
+
+ *pvgpr = vgpr;
+ }
}
-LLVMValueRef
-ac_build_shader_clock(struct ac_llvm_context *ctx)
+LLVMValueRef ac_build_shader_clock(struct ac_llvm_context *ctx, nir_scope scope)
{
- const char *intr = LLVM_VERSION_MAJOR >= 9 && ctx->chip_class >= GFX8 ?
- "llvm.amdgcn.s.memrealtime" : "llvm.readcyclecounter";
- LLVMValueRef tmp = ac_build_intrinsic(ctx, intr, ctx->i64, NULL, 0, 0);
- return LLVMBuildBitCast(ctx->builder, tmp, ctx->v2i32, "");
+ const char *name =
+ scope == NIR_SCOPE_DEVICE ? "llvm.amdgcn.s.memrealtime" : "llvm.amdgcn.s.memtime";
+ LLVMValueRef tmp = ac_build_intrinsic(ctx, name, ctx->i64, NULL, 0, 0);
+ return LLVMBuildBitCast(ctx->builder, tmp, ctx->v2i32, "");
}
-LLVMValueRef
-ac_build_ballot(struct ac_llvm_context *ctx,
- LLVMValueRef value)
+LLVMValueRef ac_build_ballot(struct ac_llvm_context *ctx, LLVMValueRef value)
{
- const char *name;
+ const char *name;
- if (LLVM_VERSION_MAJOR >= 9) {
- if (ctx->wave_size == 64)
- name = "llvm.amdgcn.icmp.i64.i32";
- else
- name = "llvm.amdgcn.icmp.i32.i32";
- } else {
- name = "llvm.amdgcn.icmp.i32";
- }
- LLVMValueRef args[3] = {
- value,
- ctx->i32_0,
- LLVMConstInt(ctx->i32, LLVMIntNE, 0)
- };
+ if (LLVM_VERSION_MAJOR >= 9) {
+ if (ctx->wave_size == 64)
+ name = "llvm.amdgcn.icmp.i64.i32";
+ else
+ name = "llvm.amdgcn.icmp.i32.i32";
+ } else {
+ name = "llvm.amdgcn.icmp.i32";
+ }
+ LLVMValueRef args[3] = {value, ctx->i32_0, LLVMConstInt(ctx->i32, LLVMIntNE, 0)};
- /* We currently have no other way to prevent LLVM from lifting the icmp
- * calls to a dominating basic block.
- */
- ac_build_optimization_barrier(ctx, &args[0]);
+ /* We currently have no other way to prevent LLVM from lifting the icmp
+ * calls to a dominating basic block.
+ */
+ ac_build_optimization_barrier(ctx, &args[0]);
- args[0] = ac_to_integer(ctx, args[0]);
+ args[0] = ac_to_integer(ctx, args[0]);
- return ac_build_intrinsic(ctx, name, ctx->iN_wavemask, args, 3,
- AC_FUNC_ATTR_NOUNWIND |
- AC_FUNC_ATTR_READNONE |
- AC_FUNC_ATTR_CONVERGENT);
+ return ac_build_intrinsic(
+ ctx, name, ctx->iN_wavemask, args, 3,
+ AC_FUNC_ATTR_NOUNWIND | AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
}
-
-LLVMValueRef ac_get_i1_sgpr_mask(struct ac_llvm_context *ctx,
- LLVMValueRef value)
+
+LLVMValueRef ac_get_i1_sgpr_mask(struct ac_llvm_context *ctx, LLVMValueRef value)
{
- const char *name;
-
- if (LLVM_VERSION_MAJOR >= 9) {
- if (ctx->wave_size == 64)
- name = "llvm.amdgcn.icmp.i64.i1";
- else
- name = "llvm.amdgcn.icmp.i32.i1";
- } else {
- name = "llvm.amdgcn.icmp.i1";
- }
- LLVMValueRef args[3] = {
- value,
- ctx->i1false,
- LLVMConstInt(ctx->i32, LLVMIntNE, 0),
- };
+ const char *name;
- return ac_build_intrinsic(ctx, name, ctx->iN_wavemask, args, 3,
- AC_FUNC_ATTR_NOUNWIND |
- AC_FUNC_ATTR_READNONE |
- AC_FUNC_ATTR_CONVERGENT);
+ if (LLVM_VERSION_MAJOR >= 9) {
+ if (ctx->wave_size == 64)
+ name = "llvm.amdgcn.icmp.i64.i1";
+ else
+ name = "llvm.amdgcn.icmp.i32.i1";
+ } else {
+ name = "llvm.amdgcn.icmp.i1";
+ }
+ LLVMValueRef args[3] = {
+ value,
+ ctx->i1false,
+ LLVMConstInt(ctx->i32, LLVMIntNE, 0),
+ };
+
+ return ac_build_intrinsic(
+ ctx, name, ctx->iN_wavemask, args, 3,
+ AC_FUNC_ATTR_NOUNWIND | AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
}
-LLVMValueRef
-ac_build_vote_all(struct ac_llvm_context *ctx, LLVMValueRef value)
+LLVMValueRef ac_build_vote_all(struct ac_llvm_context *ctx, LLVMValueRef value)
{
- LLVMValueRef active_set = ac_build_ballot(ctx, ctx->i32_1);
- LLVMValueRef vote_set = ac_build_ballot(ctx, value);
- return LLVMBuildICmp(ctx->builder, LLVMIntEQ, vote_set, active_set, "");
+ LLVMValueRef active_set = ac_build_ballot(ctx, ctx->i32_1);
+ LLVMValueRef vote_set = ac_build_ballot(ctx, value);
+ return LLVMBuildICmp(ctx->builder, LLVMIntEQ, vote_set, active_set, "");
}
-LLVMValueRef
-ac_build_vote_any(struct ac_llvm_context *ctx, LLVMValueRef value)
+LLVMValueRef ac_build_vote_any(struct ac_llvm_context *ctx, LLVMValueRef value)
{
- LLVMValueRef vote_set = ac_build_ballot(ctx, value);
- return LLVMBuildICmp(ctx->builder, LLVMIntNE, vote_set,
- LLVMConstInt(ctx->iN_wavemask, 0, 0), "");
+ LLVMValueRef vote_set = ac_build_ballot(ctx, value);
+ return LLVMBuildICmp(ctx->builder, LLVMIntNE, vote_set, LLVMConstInt(ctx->iN_wavemask, 0, 0),
+ "");
}
-LLVMValueRef
-ac_build_vote_eq(struct ac_llvm_context *ctx, LLVMValueRef value)
+LLVMValueRef ac_build_vote_eq(struct ac_llvm_context *ctx, LLVMValueRef value)
{
- LLVMValueRef active_set = ac_build_ballot(ctx, ctx->i32_1);
- LLVMValueRef vote_set = ac_build_ballot(ctx, value);
+ LLVMValueRef active_set = ac_build_ballot(ctx, ctx->i32_1);
+ LLVMValueRef vote_set = ac_build_ballot(ctx, value);
- LLVMValueRef all = LLVMBuildICmp(ctx->builder, LLVMIntEQ,
- vote_set, active_set, "");
- LLVMValueRef none = LLVMBuildICmp(ctx->builder, LLVMIntEQ,
- vote_set,
- LLVMConstInt(ctx->iN_wavemask, 0, 0), "");
- return LLVMBuildOr(ctx->builder, all, none, "");
+ LLVMValueRef all = LLVMBuildICmp(ctx->builder, LLVMIntEQ, vote_set, active_set, "");
+ LLVMValueRef none =
+ LLVMBuildICmp(ctx->builder, LLVMIntEQ, vote_set, LLVMConstInt(ctx->iN_wavemask, 0, 0), "");
+ return LLVMBuildOr(ctx->builder, all, none, "");
}
-LLVMValueRef
-ac_build_varying_gather_values(struct ac_llvm_context *ctx, LLVMValueRef *values,
- unsigned value_count, unsigned component)
+LLVMValueRef ac_build_varying_gather_values(struct ac_llvm_context *ctx, LLVMValueRef *values,
+ unsigned value_count, unsigned component)
{
- LLVMValueRef vec = NULL;
+ LLVMValueRef vec = NULL;
- if (value_count == 1) {
- return values[component];
- } else if (!value_count)
- unreachable("value_count is 0");
+ if (value_count == 1) {
+ return values[component];
+ } else if (!value_count)
+ unreachable("value_count is 0");
- for (unsigned i = component; i < value_count + component; i++) {
- LLVMValueRef value = values[i];
+ for (unsigned i = component; i < value_count + component; i++) {
+ LLVMValueRef value = values[i];
- if (i == component)
- vec = LLVMGetUndef( LLVMVectorType(LLVMTypeOf(value), value_count));
- LLVMValueRef index = LLVMConstInt(ctx->i32, i - component, false);
- vec = LLVMBuildInsertElement(ctx->builder, vec, value, index, "");
- }
- return vec;
+ if (i == component)
+ vec = LLVMGetUndef(LLVMVectorType(LLVMTypeOf(value), value_count));
+ LLVMValueRef index = LLVMConstInt(ctx->i32, i - component, false);
+ vec = LLVMBuildInsertElement(ctx->builder, vec, value, index, "");
+ }
+ return vec;
}
-LLVMValueRef
-ac_build_gather_values_extended(struct ac_llvm_context *ctx,
- LLVMValueRef *values,
- unsigned value_count,
- unsigned value_stride,
- bool load,
- bool always_vector)
+LLVMValueRef ac_build_gather_values_extended(struct ac_llvm_context *ctx, LLVMValueRef *values,
+ unsigned value_count, unsigned value_stride, bool load,
+ bool always_vector)
{
- LLVMBuilderRef builder = ctx->builder;
- LLVMValueRef vec = NULL;
- unsigned i;
+ LLVMBuilderRef builder = ctx->builder;
+ LLVMValueRef vec = NULL;
+ unsigned i;
- if (value_count == 1 && !always_vector) {
- if (load)
- return LLVMBuildLoad(builder, values[0], "");
- return values[0];
- } else if (!value_count)
- unreachable("value_count is 0");
+ if (value_count == 1 && !always_vector) {
+ if (load)
+ return LLVMBuildLoad(builder, values[0], "");
+ return values[0];
+ } else if (!value_count)
+ unreachable("value_count is 0");
- for (i = 0; i < value_count; i++) {
- LLVMValueRef value = values[i * value_stride];
- if (load)
- value = LLVMBuildLoad(builder, value, "");
+ for (i = 0; i < value_count; i++) {
+ LLVMValueRef value = values[i * value_stride];
+ if (load)
+ value = LLVMBuildLoad(builder, value, "");
- if (!i)
- vec = LLVMGetUndef( LLVMVectorType(LLVMTypeOf(value), value_count));
- LLVMValueRef index = LLVMConstInt(ctx->i32, i, false);
- vec = LLVMBuildInsertElement(builder, vec, value, index, "");
- }
- return vec;
+ if (!i)
+ vec = LLVMGetUndef(LLVMVectorType(LLVMTypeOf(value), value_count));
+ LLVMValueRef index = LLVMConstInt(ctx->i32, i, false);
+ vec = LLVMBuildInsertElement(builder, vec, value, index, "");
+ }
+ return vec;
}
-LLVMValueRef
-ac_build_gather_values(struct ac_llvm_context *ctx,
- LLVMValueRef *values,
- unsigned value_count)
+LLVMValueRef ac_build_gather_values(struct ac_llvm_context *ctx, LLVMValueRef *values,
+ unsigned value_count)
{
- return ac_build_gather_values_extended(ctx, values, value_count, 1, false, false);
+ return ac_build_gather_values_extended(ctx, values, value_count, 1, false, false);
}
/* Expand a scalar or vector to <dst_channels x type> by filling the remaining
* channels with undef. Extract at most src_channels components from the input.
*/
-static LLVMValueRef
-ac_build_expand(struct ac_llvm_context *ctx,
- LLVMValueRef value,
- unsigned src_channels,
- unsigned dst_channels)
+static LLVMValueRef ac_build_expand(struct ac_llvm_context *ctx, LLVMValueRef value,
+ unsigned src_channels, unsigned dst_channels)
{
- LLVMTypeRef elemtype;
- LLVMValueRef chan[dst_channels];
+ LLVMTypeRef elemtype;
+ LLVMValueRef chan[dst_channels];
- if (LLVMGetTypeKind(LLVMTypeOf(value)) == LLVMVectorTypeKind) {
- unsigned vec_size = LLVMGetVectorSize(LLVMTypeOf(value));
+ if (LLVMGetTypeKind(LLVMTypeOf(value)) == LLVMVectorTypeKind) {
+ unsigned vec_size = LLVMGetVectorSize(LLVMTypeOf(value));
- if (src_channels == dst_channels && vec_size == dst_channels)
- return value;
+ if (src_channels == dst_channels && vec_size == dst_channels)
+ return value;
- src_channels = MIN2(src_channels, vec_size);
+ src_channels = MIN2(src_channels, vec_size);
- for (unsigned i = 0; i < src_channels; i++)
- chan[i] = ac_llvm_extract_elem(ctx, value, i);
+ for (unsigned i = 0; i < src_channels; i++)
+ chan[i] = ac_llvm_extract_elem(ctx, value, i);
- elemtype = LLVMGetElementType(LLVMTypeOf(value));
- } else {
- if (src_channels) {
- assert(src_channels == 1);
- chan[0] = value;
- }
- elemtype = LLVMTypeOf(value);
- }
+ elemtype = LLVMGetElementType(LLVMTypeOf(value));
+ } else {
+ if (src_channels) {
+ assert(src_channels == 1);
+ chan[0] = value;
+ }
+ elemtype = LLVMTypeOf(value);
+ }
- for (unsigned i = src_channels; i < dst_channels; i++)
- chan[i] = LLVMGetUndef(elemtype);
+ for (unsigned i = src_channels; i < dst_channels; i++)
+ chan[i] = LLVMGetUndef(elemtype);
- return ac_build_gather_values(ctx, chan, dst_channels);
+ return ac_build_gather_values(ctx, chan, dst_channels);
}
/* Extract components [start, start + channels) from a vector.
*/
-LLVMValueRef
-ac_extract_components(struct ac_llvm_context *ctx,
- LLVMValueRef value,
- unsigned start,
- unsigned channels)
+LLVMValueRef ac_extract_components(struct ac_llvm_context *ctx, LLVMValueRef value, unsigned start,
+ unsigned channels)
{
- LLVMValueRef chan[channels];
+ LLVMValueRef chan[channels];
- for (unsigned i = 0; i < channels; i++)
- chan[i] = ac_llvm_extract_elem(ctx, value, i + start);
+ for (unsigned i = 0; i < channels; i++)
+ chan[i] = ac_llvm_extract_elem(ctx, value, i + start);
- return ac_build_gather_values(ctx, chan, channels);
+ return ac_build_gather_values(ctx, chan, channels);
}
/* Expand a scalar or vector to <4 x type> by filling the remaining channels
* with undef. Extract at most num_channels components from the input.
*/
-LLVMValueRef ac_build_expand_to_vec4(struct ac_llvm_context *ctx,
- LLVMValueRef value,
- unsigned num_channels)
+LLVMValueRef ac_build_expand_to_vec4(struct ac_llvm_context *ctx, LLVMValueRef value,
+ unsigned num_channels)
{
- return ac_build_expand(ctx, value, num_channels, 4);
+ return ac_build_expand(ctx, value, num_channels, 4);
}
LLVMValueRef ac_build_round(struct ac_llvm_context *ctx, LLVMValueRef value)
{
- unsigned type_size = ac_get_type_size(LLVMTypeOf(value));
- const char *name;
+ unsigned type_size = ac_get_type_size(LLVMTypeOf(value));
+ const char *name;
- if (type_size == 2)
- name = "llvm.rint.f16";
- else if (type_size == 4)
- name = "llvm.rint.f32";
- else
- name = "llvm.rint.f64";
+ if (type_size == 2)
+ name = "llvm.rint.f16";
+ else if (type_size == 4)
+ name = "llvm.rint.f32";
+ else
+ name = "llvm.rint.f64";
- return ac_build_intrinsic(ctx, name, LLVMTypeOf(value), &value, 1,
- AC_FUNC_ATTR_READNONE);
+ return ac_build_intrinsic(ctx, name, LLVMTypeOf(value), &value, 1, AC_FUNC_ATTR_READNONE);
}
-LLVMValueRef
-ac_build_fdiv(struct ac_llvm_context *ctx,
- LLVMValueRef num,
- LLVMValueRef den)
+LLVMValueRef ac_build_fdiv(struct ac_llvm_context *ctx, LLVMValueRef num, LLVMValueRef den)
{
- /* If we do (num / den), LLVM >= 7.0 does:
- * return num * v_rcp_f32(den * (fabs(den) > 0x1.0p+96f ? 0x1.0p-32f : 1.0f));
- *
- * If we do (num * (1 / den)), LLVM does:
- * return num * v_rcp_f32(den);
- */
- LLVMValueRef one = LLVMConstReal(LLVMTypeOf(num), 1.0);
- LLVMValueRef rcp = LLVMBuildFDiv(ctx->builder, one, den, "");
- LLVMValueRef ret = LLVMBuildFMul(ctx->builder, num, rcp, "");
+ unsigned type_size = ac_get_type_size(LLVMTypeOf(den));
+ const char *name;
+
+ /* For doubles, we need precise division to pass GLCTS. */
+ if (ctx->float_mode == AC_FLOAT_MODE_DEFAULT_OPENGL && type_size == 8)
+ return LLVMBuildFDiv(ctx->builder, num, den, "");
+
+ if (type_size == 2)
+ name = "llvm.amdgcn.rcp.f16";
+ else if (type_size == 4)
+ name = "llvm.amdgcn.rcp.f32";
+ else
+ name = "llvm.amdgcn.rcp.f64";
+
+ LLVMValueRef rcp =
+ ac_build_intrinsic(ctx, name, LLVMTypeOf(den), &den, 1, AC_FUNC_ATTR_READNONE);
- /* Use v_rcp_f32 instead of precise division. */
- if (!LLVMIsConstant(ret))
- LLVMSetMetadata(ret, ctx->fpmath_md_kind, ctx->fpmath_md_2p5_ulp);
- return ret;
+ return LLVMBuildFMul(ctx->builder, num, rcp, "");
}
/* See fast_idiv_by_const.h. */
/* Set: increment = util_fast_udiv_info::increment ? multiplier : 0; */
-LLVMValueRef ac_build_fast_udiv(struct ac_llvm_context *ctx,
- LLVMValueRef num,
- LLVMValueRef multiplier,
- LLVMValueRef pre_shift,
- LLVMValueRef post_shift,
- LLVMValueRef increment)
-{
- LLVMBuilderRef builder = ctx->builder;
-
- num = LLVMBuildLShr(builder, num, pre_shift, "");
- num = LLVMBuildMul(builder,
- LLVMBuildZExt(builder, num, ctx->i64, ""),
- LLVMBuildZExt(builder, multiplier, ctx->i64, ""), "");
- num = LLVMBuildAdd(builder, num,
- LLVMBuildZExt(builder, increment, ctx->i64, ""), "");
- num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), "");
- num = LLVMBuildTrunc(builder, num, ctx->i32, "");
- return LLVMBuildLShr(builder, num, post_shift, "");
+LLVMValueRef ac_build_fast_udiv(struct ac_llvm_context *ctx, LLVMValueRef num,
+ LLVMValueRef multiplier, LLVMValueRef pre_shift,
+ LLVMValueRef post_shift, LLVMValueRef increment)
+{
+ LLVMBuilderRef builder = ctx->builder;
+
+ num = LLVMBuildLShr(builder, num, pre_shift, "");
+ num = LLVMBuildMul(builder, LLVMBuildZExt(builder, num, ctx->i64, ""),
+ LLVMBuildZExt(builder, multiplier, ctx->i64, ""), "");
+ num = LLVMBuildAdd(builder, num, LLVMBuildZExt(builder, increment, ctx->i64, ""), "");
+ num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), "");
+ num = LLVMBuildTrunc(builder, num, ctx->i32, "");
+ return LLVMBuildLShr(builder, num, post_shift, "");
}
/* See fast_idiv_by_const.h. */
/* If num != UINT_MAX, this more efficient version can be used. */
/* Set: increment = util_fast_udiv_info::increment; */
-LLVMValueRef ac_build_fast_udiv_nuw(struct ac_llvm_context *ctx,
- LLVMValueRef num,
- LLVMValueRef multiplier,
- LLVMValueRef pre_shift,
- LLVMValueRef post_shift,
- LLVMValueRef increment)
+LLVMValueRef ac_build_fast_udiv_nuw(struct ac_llvm_context *ctx, LLVMValueRef num,
+ LLVMValueRef multiplier, LLVMValueRef pre_shift,
+ LLVMValueRef post_shift, LLVMValueRef increment)
{
- LLVMBuilderRef builder = ctx->builder;
+ LLVMBuilderRef builder = ctx->builder;
- num = LLVMBuildLShr(builder, num, pre_shift, "");
- num = LLVMBuildNUWAdd(builder, num, increment, "");
- num = LLVMBuildMul(builder,
- LLVMBuildZExt(builder, num, ctx->i64, ""),
- LLVMBuildZExt(builder, multiplier, ctx->i64, ""), "");
- num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), "");
- num = LLVMBuildTrunc(builder, num, ctx->i32, "");
- return LLVMBuildLShr(builder, num, post_shift, "");
+ num = LLVMBuildLShr(builder, num, pre_shift, "");
+ num = LLVMBuildNUWAdd(builder, num, increment, "");
+ num = LLVMBuildMul(builder, LLVMBuildZExt(builder, num, ctx->i64, ""),
+ LLVMBuildZExt(builder, multiplier, ctx->i64, ""), "");
+ num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), "");
+ num = LLVMBuildTrunc(builder, num, ctx->i32, "");
+ return LLVMBuildLShr(builder, num, post_shift, "");
}
/* See fast_idiv_by_const.h. */
/* Both operands must fit in 31 bits and the divisor must not be 1. */
-LLVMValueRef ac_build_fast_udiv_u31_d_not_one(struct ac_llvm_context *ctx,
- LLVMValueRef num,
- LLVMValueRef multiplier,
- LLVMValueRef post_shift)
+LLVMValueRef ac_build_fast_udiv_u31_d_not_one(struct ac_llvm_context *ctx, LLVMValueRef num,
+ LLVMValueRef multiplier, LLVMValueRef post_shift)
{
- LLVMBuilderRef builder = ctx->builder;
+ LLVMBuilderRef builder = ctx->builder;
- num = LLVMBuildMul(builder,
- LLVMBuildZExt(builder, num, ctx->i64, ""),
- LLVMBuildZExt(builder, multiplier, ctx->i64, ""), "");
- num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), "");
- num = LLVMBuildTrunc(builder, num, ctx->i32, "");
- return LLVMBuildLShr(builder, num, post_shift, "");
+ num = LLVMBuildMul(builder, LLVMBuildZExt(builder, num, ctx->i64, ""),
+ LLVMBuildZExt(builder, multiplier, ctx->i64, ""), "");
+ num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), "");
+ num = LLVMBuildTrunc(builder, num, ctx->i32, "");
+ return LLVMBuildLShr(builder, num, post_shift, "");
}
/* Coordinates for cube map selection. sc, tc, and ma are as in Table 8.27
* already multiplied by two. id is the cube face number.
*/
struct cube_selection_coords {
- LLVMValueRef stc[2];
- LLVMValueRef ma;
- LLVMValueRef id;
+ LLVMValueRef stc[2];
+ LLVMValueRef ma;
+ LLVMValueRef id;
};
-static void
-build_cube_intrinsic(struct ac_llvm_context *ctx,
- LLVMValueRef in[3],
- struct cube_selection_coords *out)
+static void build_cube_intrinsic(struct ac_llvm_context *ctx, LLVMValueRef in[3],
+ struct cube_selection_coords *out)
{
- LLVMTypeRef f32 = ctx->f32;
+ LLVMTypeRef f32 = ctx->f32;
- out->stc[1] = ac_build_intrinsic(ctx, "llvm.amdgcn.cubetc",
- f32, in, 3, AC_FUNC_ATTR_READNONE);
- out->stc[0] = ac_build_intrinsic(ctx, "llvm.amdgcn.cubesc",
- f32, in, 3, AC_FUNC_ATTR_READNONE);
- out->ma = ac_build_intrinsic(ctx, "llvm.amdgcn.cubema",
- f32, in, 3, AC_FUNC_ATTR_READNONE);
- out->id = ac_build_intrinsic(ctx, "llvm.amdgcn.cubeid",
- f32, in, 3, AC_FUNC_ATTR_READNONE);
+ out->stc[1] = ac_build_intrinsic(ctx, "llvm.amdgcn.cubetc", f32, in, 3, AC_FUNC_ATTR_READNONE);
+ out->stc[0] = ac_build_intrinsic(ctx, "llvm.amdgcn.cubesc", f32, in, 3, AC_FUNC_ATTR_READNONE);
+ out->ma = ac_build_intrinsic(ctx, "llvm.amdgcn.cubema", f32, in, 3, AC_FUNC_ATTR_READNONE);
+ out->id = ac_build_intrinsic(ctx, "llvm.amdgcn.cubeid", f32, in, 3, AC_FUNC_ATTR_READNONE);
}
/**
* the selcoords major axis.
*/
static void build_cube_select(struct ac_llvm_context *ctx,
- const struct cube_selection_coords *selcoords,
- const LLVMValueRef *coords,
- LLVMValueRef *out_st,
- LLVMValueRef *out_ma)
-{
- LLVMBuilderRef builder = ctx->builder;
- LLVMTypeRef f32 = LLVMTypeOf(coords[0]);
- LLVMValueRef is_ma_positive;
- LLVMValueRef sgn_ma;
- LLVMValueRef is_ma_z, is_not_ma_z;
- LLVMValueRef is_ma_y;
- LLVMValueRef is_ma_x;
- LLVMValueRef sgn;
- LLVMValueRef tmp;
-
- is_ma_positive = LLVMBuildFCmp(builder, LLVMRealUGE,
- selcoords->ma, LLVMConstReal(f32, 0.0), "");
- sgn_ma = LLVMBuildSelect(builder, is_ma_positive,
- LLVMConstReal(f32, 1.0), LLVMConstReal(f32, -1.0), "");
-
- is_ma_z = LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->id, LLVMConstReal(f32, 4.0), "");
- is_not_ma_z = LLVMBuildNot(builder, is_ma_z, "");
- is_ma_y = LLVMBuildAnd(builder, is_not_ma_z,
- LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->id, LLVMConstReal(f32, 2.0), ""), "");
- is_ma_x = LLVMBuildAnd(builder, is_not_ma_z, LLVMBuildNot(builder, is_ma_y, ""), "");
-
- /* Select sc */
- tmp = LLVMBuildSelect(builder, is_ma_x, coords[2], coords[0], "");
- sgn = LLVMBuildSelect(builder, is_ma_y, LLVMConstReal(f32, 1.0),
- LLVMBuildSelect(builder, is_ma_z, sgn_ma,
- LLVMBuildFNeg(builder, sgn_ma, ""), ""), "");
- out_st[0] = LLVMBuildFMul(builder, tmp, sgn, "");
-
- /* Select tc */
- tmp = LLVMBuildSelect(builder, is_ma_y, coords[2], coords[1], "");
- sgn = LLVMBuildSelect(builder, is_ma_y, sgn_ma,
- LLVMConstReal(f32, -1.0), "");
- out_st[1] = LLVMBuildFMul(builder, tmp, sgn, "");
-
- /* Select ma */
- tmp = LLVMBuildSelect(builder, is_ma_z, coords[2],
- LLVMBuildSelect(builder, is_ma_y, coords[1], coords[0], ""), "");
- tmp = ac_build_intrinsic(ctx, "llvm.fabs.f32",
- ctx->f32, &tmp, 1, AC_FUNC_ATTR_READNONE);
- *out_ma = LLVMBuildFMul(builder, tmp, LLVMConstReal(f32, 2.0), "");
-}
-
-void
-ac_prepare_cube_coords(struct ac_llvm_context *ctx,
- bool is_deriv, bool is_array, bool is_lod,
- LLVMValueRef *coords_arg,
- LLVMValueRef *derivs_arg)
-{
-
- LLVMBuilderRef builder = ctx->builder;
- struct cube_selection_coords selcoords;
- LLVMValueRef coords[3];
- LLVMValueRef invma;
-
- if (is_array && !is_lod) {
- LLVMValueRef tmp = ac_build_round(ctx, coords_arg[3]);
-
- /* Section 8.9 (Texture Functions) of the GLSL 4.50 spec says:
- *
- * "For Array forms, the array layer used will be
- *
- * max(0, min(d−1, floor(layer+0.5)))
- *
- * where d is the depth of the texture array and layer
- * comes from the component indicated in the tables below.
- * Workaroudn for an issue where the layer is taken from a
- * helper invocation which happens to fall on a different
- * layer due to extrapolation."
- *
- * GFX8 and earlier attempt to implement this in hardware by
- * clamping the value of coords[2] = (8 * layer) + face.
- * Unfortunately, this means that the we end up with the wrong
- * face when clamping occurs.
- *
- * Clamp the layer earlier to work around the issue.
- */
- if (ctx->chip_class <= GFX8) {
- LLVMValueRef ge0;
- ge0 = LLVMBuildFCmp(builder, LLVMRealOGE, tmp, ctx->f32_0, "");
- tmp = LLVMBuildSelect(builder, ge0, tmp, ctx->f32_0, "");
- }
-
- coords_arg[3] = tmp;
- }
-
- build_cube_intrinsic(ctx, coords_arg, &selcoords);
-
- invma = ac_build_intrinsic(ctx, "llvm.fabs.f32",
- ctx->f32, &selcoords.ma, 1, AC_FUNC_ATTR_READNONE);
- invma = ac_build_fdiv(ctx, LLVMConstReal(ctx->f32, 1.0), invma);
-
- for (int i = 0; i < 2; ++i)
- coords[i] = LLVMBuildFMul(builder, selcoords.stc[i], invma, "");
-
- coords[2] = selcoords.id;
-
- if (is_deriv && derivs_arg) {
- LLVMValueRef derivs[4];
- int axis;
-
- /* Convert cube derivatives to 2D derivatives. */
- for (axis = 0; axis < 2; axis++) {
- LLVMValueRef deriv_st[2];
- LLVMValueRef deriv_ma;
-
- /* Transform the derivative alongside the texture
- * coordinate. Mathematically, the correct formula is
- * as follows. Assume we're projecting onto the +Z face
- * and denote by dx/dh the derivative of the (original)
- * X texture coordinate with respect to horizontal
- * window coordinates. The projection onto the +Z face
- * plane is:
- *
- * f(x,z) = x/z
- *
- * Then df/dh = df/dx * dx/dh + df/dz * dz/dh
- * = 1/z * dx/dh - x/z * 1/z * dz/dh.
- *
- * This motivatives the implementation below.
- *
- * Whether this actually gives the expected results for
- * apps that might feed in derivatives obtained via
- * finite differences is anyone's guess. The OpenGL spec
- * seems awfully quiet about how textureGrad for cube
- * maps should be handled.
- */
- build_cube_select(ctx, &selcoords, &derivs_arg[axis * 3],
- deriv_st, &deriv_ma);
-
- deriv_ma = LLVMBuildFMul(builder, deriv_ma, invma, "");
-
- for (int i = 0; i < 2; ++i)
- derivs[axis * 2 + i] =
- LLVMBuildFSub(builder,
- LLVMBuildFMul(builder, deriv_st[i], invma, ""),
- LLVMBuildFMul(builder, deriv_ma, coords[i], ""), "");
- }
-
- memcpy(derivs_arg, derivs, sizeof(derivs));
- }
-
- /* Shift the texture coordinate. This must be applied after the
- * derivative calculation.
- */
- for (int i = 0; i < 2; ++i)
- coords[i] = LLVMBuildFAdd(builder, coords[i], LLVMConstReal(ctx->f32, 1.5), "");
-
- if (is_array) {
- /* for cube arrays coord.z = coord.w(array_index) * 8 + face */
- /* coords_arg.w component - array_index for cube arrays */
- coords[2] = ac_build_fmad(ctx, coords_arg[3], LLVMConstReal(ctx->f32, 8.0), coords[2]);
- }
-
- memcpy(coords_arg, coords, sizeof(coords));
-}
-
-
-LLVMValueRef
-ac_build_fs_interp(struct ac_llvm_context *ctx,
- LLVMValueRef llvm_chan,
- LLVMValueRef attr_number,
- LLVMValueRef params,
- LLVMValueRef i,
- LLVMValueRef j)
-{
- LLVMValueRef args[5];
- LLVMValueRef p1;
-
- args[0] = i;
- args[1] = llvm_chan;
- args[2] = attr_number;
- args[3] = params;
-
- p1 = ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p1",
- ctx->f32, args, 4, AC_FUNC_ATTR_READNONE);
-
- args[0] = p1;
- args[1] = j;
- args[2] = llvm_chan;
- args[3] = attr_number;
- args[4] = params;
+ const struct cube_selection_coords *selcoords,
+ const LLVMValueRef *coords, LLVMValueRef *out_st,
+ LLVMValueRef *out_ma)
+{
+ LLVMBuilderRef builder = ctx->builder;
+ LLVMTypeRef f32 = LLVMTypeOf(coords[0]);
+ LLVMValueRef is_ma_positive;
+ LLVMValueRef sgn_ma;
+ LLVMValueRef is_ma_z, is_not_ma_z;
+ LLVMValueRef is_ma_y;
+ LLVMValueRef is_ma_x;
+ LLVMValueRef sgn;
+ LLVMValueRef tmp;
+
+ is_ma_positive = LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->ma, LLVMConstReal(f32, 0.0), "");
+ sgn_ma = LLVMBuildSelect(builder, is_ma_positive, LLVMConstReal(f32, 1.0),
+ LLVMConstReal(f32, -1.0), "");
+
+ is_ma_z = LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->id, LLVMConstReal(f32, 4.0), "");
+ is_not_ma_z = LLVMBuildNot(builder, is_ma_z, "");
+ is_ma_y = LLVMBuildAnd(
+ builder, is_not_ma_z,
+ LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->id, LLVMConstReal(f32, 2.0), ""), "");
+ is_ma_x = LLVMBuildAnd(builder, is_not_ma_z, LLVMBuildNot(builder, is_ma_y, ""), "");
+
+ /* Select sc */
+ tmp = LLVMBuildSelect(builder, is_ma_x, coords[2], coords[0], "");
+ sgn = LLVMBuildSelect(
+ builder, is_ma_y, LLVMConstReal(f32, 1.0),
+ LLVMBuildSelect(builder, is_ma_z, sgn_ma, LLVMBuildFNeg(builder, sgn_ma, ""), ""), "");
+ out_st[0] = LLVMBuildFMul(builder, tmp, sgn, "");
+
+ /* Select tc */
+ tmp = LLVMBuildSelect(builder, is_ma_y, coords[2], coords[1], "");
+ sgn = LLVMBuildSelect(builder, is_ma_y, sgn_ma, LLVMConstReal(f32, -1.0), "");
+ out_st[1] = LLVMBuildFMul(builder, tmp, sgn, "");
+
+ /* Select ma */
+ tmp = LLVMBuildSelect(builder, is_ma_z, coords[2],
+ LLVMBuildSelect(builder, is_ma_y, coords[1], coords[0], ""), "");
+ tmp = ac_build_intrinsic(ctx, "llvm.fabs.f32", ctx->f32, &tmp, 1, AC_FUNC_ATTR_READNONE);
+ *out_ma = LLVMBuildFMul(builder, tmp, LLVMConstReal(f32, 2.0), "");
+}
+
+void ac_prepare_cube_coords(struct ac_llvm_context *ctx, bool is_deriv, bool is_array, bool is_lod,
+ LLVMValueRef *coords_arg, LLVMValueRef *derivs_arg)
+{
+
+ LLVMBuilderRef builder = ctx->builder;
+ struct cube_selection_coords selcoords;
+ LLVMValueRef coords[3];
+ LLVMValueRef invma;
+
+ if (is_array && !is_lod) {
+ LLVMValueRef tmp = ac_build_round(ctx, coords_arg[3]);
+
+ /* Section 8.9 (Texture Functions) of the GLSL 4.50 spec says:
+ *
+ * "For Array forms, the array layer used will be
+ *
+ * max(0, min(d−1, floor(layer+0.5)))
+ *
+ * where d is the depth of the texture array and layer
+ * comes from the component indicated in the tables below.
+ * Workaroudn for an issue where the layer is taken from a
+ * helper invocation which happens to fall on a different
+ * layer due to extrapolation."
+ *
+ * GFX8 and earlier attempt to implement this in hardware by
+ * clamping the value of coords[2] = (8 * layer) + face.
+ * Unfortunately, this means that the we end up with the wrong
+ * face when clamping occurs.
+ *
+ * Clamp the layer earlier to work around the issue.
+ */
+ if (ctx->chip_class <= GFX8) {
+ LLVMValueRef ge0;
+ ge0 = LLVMBuildFCmp(builder, LLVMRealOGE, tmp, ctx->f32_0, "");
+ tmp = LLVMBuildSelect(builder, ge0, tmp, ctx->f32_0, "");
+ }
+
+ coords_arg[3] = tmp;
+ }
+
+ build_cube_intrinsic(ctx, coords_arg, &selcoords);
+
+ invma =
+ ac_build_intrinsic(ctx, "llvm.fabs.f32", ctx->f32, &selcoords.ma, 1, AC_FUNC_ATTR_READNONE);
+ invma = ac_build_fdiv(ctx, LLVMConstReal(ctx->f32, 1.0), invma);
+
+ for (int i = 0; i < 2; ++i)
+ coords[i] = LLVMBuildFMul(builder, selcoords.stc[i], invma, "");
+
+ coords[2] = selcoords.id;
+
+ if (is_deriv && derivs_arg) {
+ LLVMValueRef derivs[4];
+ int axis;
+
+ /* Convert cube derivatives to 2D derivatives. */
+ for (axis = 0; axis < 2; axis++) {
+ LLVMValueRef deriv_st[2];
+ LLVMValueRef deriv_ma;
+
+ /* Transform the derivative alongside the texture
+ * coordinate. Mathematically, the correct formula is
+ * as follows. Assume we're projecting onto the +Z face
+ * and denote by dx/dh the derivative of the (original)
+ * X texture coordinate with respect to horizontal
+ * window coordinates. The projection onto the +Z face
+ * plane is:
+ *
+ * f(x,z) = x/z
+ *
+ * Then df/dh = df/dx * dx/dh + df/dz * dz/dh
+ * = 1/z * dx/dh - x/z * 1/z * dz/dh.
+ *
+ * This motivatives the implementation below.
+ *
+ * Whether this actually gives the expected results for
+ * apps that might feed in derivatives obtained via
+ * finite differences is anyone's guess. The OpenGL spec
+ * seems awfully quiet about how textureGrad for cube
+ * maps should be handled.
+ */
+ build_cube_select(ctx, &selcoords, &derivs_arg[axis * 3], deriv_st, &deriv_ma);
+
+ deriv_ma = LLVMBuildFMul(builder, deriv_ma, invma, "");
+
+ for (int i = 0; i < 2; ++i)
+ derivs[axis * 2 + i] =
+ LLVMBuildFSub(builder, LLVMBuildFMul(builder, deriv_st[i], invma, ""),
+ LLVMBuildFMul(builder, deriv_ma, coords[i], ""), "");
+ }
+
+ memcpy(derivs_arg, derivs, sizeof(derivs));
+ }
+
+ /* Shift the texture coordinate. This must be applied after the
+ * derivative calculation.
+ */
+ for (int i = 0; i < 2; ++i)
+ coords[i] = LLVMBuildFAdd(builder, coords[i], LLVMConstReal(ctx->f32, 1.5), "");
+
+ if (is_array) {
+ /* for cube arrays coord.z = coord.w(array_index) * 8 + face */
+ /* coords_arg.w component - array_index for cube arrays */
+ coords[2] = ac_build_fmad(ctx, coords_arg[3], LLVMConstReal(ctx->f32, 8.0), coords[2]);
+ }
+
+ memcpy(coords_arg, coords, sizeof(coords));
+}
+
+LLVMValueRef ac_build_fs_interp(struct ac_llvm_context *ctx, LLVMValueRef llvm_chan,
+ LLVMValueRef attr_number, LLVMValueRef params, LLVMValueRef i,
+ LLVMValueRef j)
+{
+ LLVMValueRef args[5];
+ LLVMValueRef p1;
- return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p2",
- ctx->f32, args, 5, AC_FUNC_ATTR_READNONE);
+ args[0] = i;
+ args[1] = llvm_chan;
+ args[2] = attr_number;
+ args[3] = params;
+
+ p1 = ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p1", ctx->f32, args, 4, AC_FUNC_ATTR_READNONE);
+
+ args[0] = p1;
+ args[1] = j;
+ args[2] = llvm_chan;
+ args[3] = attr_number;
+ args[4] = params;
+
+ return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p2", ctx->f32, args, 5,
+ AC_FUNC_ATTR_READNONE);
}
-LLVMValueRef
-ac_build_fs_interp_f16(struct ac_llvm_context *ctx,
- LLVMValueRef llvm_chan,
- LLVMValueRef attr_number,
- LLVMValueRef params,
- LLVMValueRef i,
- LLVMValueRef j)
+LLVMValueRef ac_build_fs_interp_f16(struct ac_llvm_context *ctx, LLVMValueRef llvm_chan,
+ LLVMValueRef attr_number, LLVMValueRef params, LLVMValueRef i,
+ LLVMValueRef j)
{
- LLVMValueRef args[6];
- LLVMValueRef p1;
-
- args[0] = i;
- args[1] = llvm_chan;
- args[2] = attr_number;
- args[3] = ctx->i1false;
- args[4] = params;
-
- p1 = ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p1.f16",
- ctx->f32, args, 5, AC_FUNC_ATTR_READNONE);
-
- args[0] = p1;
- args[1] = j;
- args[2] = llvm_chan;
- args[3] = attr_number;
- args[4] = ctx->i1false;
- args[5] = params;
+ LLVMValueRef args[6];
+ LLVMValueRef p1;
+
+ args[0] = i;
+ args[1] = llvm_chan;
+ args[2] = attr_number;
+ args[3] = ctx->i1false;
+ args[4] = params;
- return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p2.f16",
- ctx->f16, args, 6, AC_FUNC_ATTR_READNONE);
+ p1 = ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p1.f16", ctx->f32, args, 5,
+ AC_FUNC_ATTR_READNONE);
+
+ args[0] = p1;
+ args[1] = j;
+ args[2] = llvm_chan;
+ args[3] = attr_number;
+ args[4] = ctx->i1false;
+ args[5] = params;
+
+ return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p2.f16", ctx->f16, args, 6,
+ AC_FUNC_ATTR_READNONE);
}
-LLVMValueRef
-ac_build_fs_interp_mov(struct ac_llvm_context *ctx,
- LLVMValueRef parameter,
- LLVMValueRef llvm_chan,
- LLVMValueRef attr_number,
- LLVMValueRef params)
+LLVMValueRef ac_build_fs_interp_mov(struct ac_llvm_context *ctx, LLVMValueRef parameter,
+ LLVMValueRef llvm_chan, LLVMValueRef attr_number,
+ LLVMValueRef params)
{
- LLVMValueRef args[4];
+ LLVMValueRef args[4];
- args[0] = parameter;
- args[1] = llvm_chan;
- args[2] = attr_number;
- args[3] = params;
+ args[0] = parameter;
+ args[1] = llvm_chan;
+ args[2] = attr_number;
+ args[3] = params;
- return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.mov",
- ctx->f32, args, 4, AC_FUNC_ATTR_READNONE);
+ return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.mov", ctx->f32, args, 4,
+ AC_FUNC_ATTR_READNONE);
}
-LLVMValueRef
-ac_build_gep_ptr(struct ac_llvm_context *ctx,
- LLVMValueRef base_ptr,
- LLVMValueRef index)
+LLVMValueRef ac_build_gep_ptr(struct ac_llvm_context *ctx, LLVMValueRef base_ptr,
+ LLVMValueRef index)
{
- return LLVMBuildGEP(ctx->builder, base_ptr, &index, 1, "");
+ return LLVMBuildGEP(ctx->builder, base_ptr, &index, 1, "");
}
-LLVMValueRef
-ac_build_gep0(struct ac_llvm_context *ctx,
- LLVMValueRef base_ptr,
- LLVMValueRef index)
+LLVMValueRef ac_build_gep0(struct ac_llvm_context *ctx, LLVMValueRef base_ptr, LLVMValueRef index)
{
- LLVMValueRef indices[2] = {
- ctx->i32_0,
- index,
- };
- return LLVMBuildGEP(ctx->builder, base_ptr, indices, 2, "");
+ LLVMValueRef indices[2] = {
+ ctx->i32_0,
+ index,
+ };
+ return LLVMBuildGEP(ctx->builder, base_ptr, indices, 2, "");
}
-LLVMValueRef ac_build_pointer_add(struct ac_llvm_context *ctx, LLVMValueRef ptr,
- LLVMValueRef index)
+LLVMValueRef ac_build_pointer_add(struct ac_llvm_context *ctx, LLVMValueRef ptr, LLVMValueRef index)
{
- return LLVMBuildPointerCast(ctx->builder,
- LLVMBuildGEP(ctx->builder, ptr, &index, 1, ""),
- LLVMTypeOf(ptr), "");
+ return LLVMBuildPointerCast(ctx->builder, LLVMBuildGEP(ctx->builder, ptr, &index, 1, ""),
+ LLVMTypeOf(ptr), "");
}
-void
-ac_build_indexed_store(struct ac_llvm_context *ctx,
- LLVMValueRef base_ptr, LLVMValueRef index,
- LLVMValueRef value)
+void ac_build_indexed_store(struct ac_llvm_context *ctx, LLVMValueRef base_ptr, LLVMValueRef index,
+ LLVMValueRef value)
{
- LLVMBuildStore(ctx->builder, value,
- ac_build_gep0(ctx, base_ptr, index));
+ LLVMBuildStore(ctx->builder, value, ac_build_gep0(ctx, base_ptr, index));
}
/**
* ptr2 = LLVMBuildInBoundsGEP(ptr1, 32 / elemsize);
* sampler = load(ptr2); // becomes "s_load ptr1, 32" thanks to InBounds
*/
-static LLVMValueRef
-ac_build_load_custom(struct ac_llvm_context *ctx, LLVMValueRef base_ptr,
- LLVMValueRef index, bool uniform, bool invariant,
- bool no_unsigned_wraparound)
+static LLVMValueRef ac_build_load_custom(struct ac_llvm_context *ctx, LLVMValueRef base_ptr,
+ LLVMValueRef index, bool uniform, bool invariant,
+ bool no_unsigned_wraparound)
{
- LLVMValueRef pointer, result;
+ LLVMValueRef pointer, result;
- if (no_unsigned_wraparound &&
- LLVMGetPointerAddressSpace(LLVMTypeOf(base_ptr)) == AC_ADDR_SPACE_CONST_32BIT)
- pointer = LLVMBuildInBoundsGEP(ctx->builder, base_ptr, &index, 1, "");
- else
- pointer = LLVMBuildGEP(ctx->builder, base_ptr, &index, 1, "");
+ if (no_unsigned_wraparound &&
+ LLVMGetPointerAddressSpace(LLVMTypeOf(base_ptr)) == AC_ADDR_SPACE_CONST_32BIT)
+ pointer = LLVMBuildInBoundsGEP(ctx->builder, base_ptr, &index, 1, "");
+ else
+ pointer = LLVMBuildGEP(ctx->builder, base_ptr, &index, 1, "");
- if (uniform)
- LLVMSetMetadata(pointer, ctx->uniform_md_kind, ctx->empty_md);
- result = LLVMBuildLoad(ctx->builder, pointer, "");
- if (invariant)
- LLVMSetMetadata(result, ctx->invariant_load_md_kind, ctx->empty_md);
- return result;
+ if (uniform)
+ LLVMSetMetadata(pointer, ctx->uniform_md_kind, ctx->empty_md);
+ result = LLVMBuildLoad(ctx->builder, pointer, "");
+ if (invariant)
+ LLVMSetMetadata(result, ctx->invariant_load_md_kind, ctx->empty_md);
+ return result;
}
-LLVMValueRef ac_build_load(struct ac_llvm_context *ctx, LLVMValueRef base_ptr,
- LLVMValueRef index)
+LLVMValueRef ac_build_load(struct ac_llvm_context *ctx, LLVMValueRef base_ptr, LLVMValueRef index)
{
- return ac_build_load_custom(ctx, base_ptr, index, false, false, false);
+ return ac_build_load_custom(ctx, base_ptr, index, false, false, false);
}
-LLVMValueRef ac_build_load_invariant(struct ac_llvm_context *ctx,
- LLVMValueRef base_ptr, LLVMValueRef index)
+LLVMValueRef ac_build_load_invariant(struct ac_llvm_context *ctx, LLVMValueRef base_ptr,
+ LLVMValueRef index)
{
- return ac_build_load_custom(ctx, base_ptr, index, false, true, false);
+ return ac_build_load_custom(ctx, base_ptr, index, false, true, false);
}
/* This assumes that there is no unsigned integer wraparound during the address
* computation, excluding all GEPs within base_ptr. */
-LLVMValueRef ac_build_load_to_sgpr(struct ac_llvm_context *ctx,
- LLVMValueRef base_ptr, LLVMValueRef index)
+LLVMValueRef ac_build_load_to_sgpr(struct ac_llvm_context *ctx, LLVMValueRef base_ptr,
+ LLVMValueRef index)
{
- return ac_build_load_custom(ctx, base_ptr, index, true, true, true);
+ return ac_build_load_custom(ctx, base_ptr, index, true, true, true);
}
/* See ac_build_load_custom() documentation. */
LLVMValueRef ac_build_load_to_sgpr_uint_wraparound(struct ac_llvm_context *ctx,
- LLVMValueRef base_ptr, LLVMValueRef index)
-{
- return ac_build_load_custom(ctx, base_ptr, index, true, true, false);
-}
-
-static unsigned get_load_cache_policy(struct ac_llvm_context *ctx,
- unsigned cache_policy)
-{
- return cache_policy |
- (ctx->chip_class >= GFX10 && cache_policy & ac_glc ? ac_dlc : 0);
-}
-
-static void
-ac_build_buffer_store_common(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef data,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- unsigned num_channels,
- LLVMTypeRef return_channel_type,
- unsigned cache_policy,
- bool use_format,
- bool structurized)
-{
- LLVMValueRef args[6];
- int idx = 0;
- args[idx++] = data;
- args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, "");
- if (structurized)
- args[idx++] = vindex ? vindex : ctx->i32_0;
- args[idx++] = voffset ? voffset : ctx->i32_0;
- args[idx++] = soffset ? soffset : ctx->i32_0;
- args[idx++] = LLVMConstInt(ctx->i32, cache_policy, 0);
- unsigned func = !ac_has_vec3_support(ctx->chip_class, use_format) && num_channels == 3 ? 4 : num_channels;
- const char *indexing_kind = structurized ? "struct" : "raw";
- char name[256], type_name[8];
-
- LLVMTypeRef type = func > 1 ? LLVMVectorType(return_channel_type, func) : return_channel_type;
- ac_build_type_name_for_intr(type, type_name, sizeof(type_name));
-
- if (use_format) {
- snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.store.format.%s",
- indexing_kind, type_name);
- } else {
- snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.store.%s",
- indexing_kind, type_name);
- }
-
- ac_build_intrinsic(ctx, name, ctx->voidt, args, idx,
- AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY);
-}
-
-void
-ac_build_buffer_store_format(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef data,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- unsigned num_channels,
- unsigned cache_policy)
-{
- ac_build_buffer_store_common(ctx, rsrc, data, vindex,
- voffset, NULL, num_channels,
- ctx->f32, cache_policy,
- true, true);
+ LLVMValueRef base_ptr, LLVMValueRef index)
+{
+ return ac_build_load_custom(ctx, base_ptr, index, true, true, false);
+}
+
+static unsigned get_load_cache_policy(struct ac_llvm_context *ctx, unsigned cache_policy)
+{
+ return cache_policy | (ctx->chip_class >= GFX10 && cache_policy & ac_glc ? ac_dlc : 0);
+}
+
+static void ac_build_buffer_store_common(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef data, LLVMValueRef vindex,
+ LLVMValueRef voffset, LLVMValueRef soffset,
+ unsigned cache_policy, bool use_format, bool structurized)
+{
+ LLVMValueRef args[6];
+ int idx = 0;
+ args[idx++] = data;
+ args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, "");
+ if (structurized)
+ args[idx++] = vindex ? vindex : ctx->i32_0;
+ args[idx++] = voffset ? voffset : ctx->i32_0;
+ args[idx++] = soffset ? soffset : ctx->i32_0;
+ args[idx++] = LLVMConstInt(ctx->i32, cache_policy, 0);
+ const char *indexing_kind = structurized ? "struct" : "raw";
+ char name[256], type_name[8];
+
+ ac_build_type_name_for_intr(LLVMTypeOf(data), type_name, sizeof(type_name));
+
+ if (use_format) {
+ snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.store.format.%s", indexing_kind,
+ type_name);
+ } else {
+ snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.store.%s", indexing_kind, type_name);
+ }
+
+ ac_build_intrinsic(ctx, name, ctx->voidt, args, idx, AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY);
+}
+
+void ac_build_buffer_store_format(struct ac_llvm_context *ctx, LLVMValueRef rsrc, LLVMValueRef data,
+ LLVMValueRef vindex, LLVMValueRef voffset, unsigned cache_policy)
+{
+ ac_build_buffer_store_common(ctx, rsrc, data, vindex, voffset, NULL, cache_policy, true, true);
}
/* TBUFFER_STORE_FORMAT_{X,XY,XYZ,XYZW} <- the suffix is selected by num_channels=1..4.
* The type of vdata must be one of i32 (num_channels=1), v2i32 (num_channels=2),
* or v4i32 (num_channels=3,4).
*/
-void
-ac_build_buffer_store_dword(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vdata,
- unsigned num_channels,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- unsigned inst_offset,
- unsigned cache_policy)
-{
- /* Split 3 channel stores, because only LLVM 9+ support 3-channel
- * intrinsics. */
- if (num_channels == 3 && !ac_has_vec3_support(ctx->chip_class, false)) {
- LLVMValueRef v[3], v01;
-
- for (int i = 0; i < 3; i++) {
- v[i] = LLVMBuildExtractElement(ctx->builder, vdata,
- LLVMConstInt(ctx->i32, i, 0), "");
- }
- v01 = ac_build_gather_values(ctx, v, 2);
-
- ac_build_buffer_store_dword(ctx, rsrc, v01, 2, voffset,
- soffset, inst_offset, cache_policy);
- ac_build_buffer_store_dword(ctx, rsrc, v[2], 1, voffset,
- soffset, inst_offset + 8,
- cache_policy);
- return;
- }
-
- /* SWIZZLE_ENABLE requires that soffset isn't folded into voffset
- * (voffset is swizzled, but soffset isn't swizzled).
- * llvm.amdgcn.buffer.store doesn't have a separate soffset parameter.
- */
- if (!(cache_policy & ac_swizzled)) {
- LLVMValueRef offset = soffset;
-
- if (inst_offset)
- offset = LLVMBuildAdd(ctx->builder, offset,
- LLVMConstInt(ctx->i32, inst_offset, 0), "");
-
- ac_build_buffer_store_common(ctx, rsrc, ac_to_float(ctx, vdata),
- ctx->i32_0, voffset, offset,
- num_channels, ctx->f32,
- cache_policy, false, false);
- return;
- }
-
- static const unsigned dfmts[] = {
- V_008F0C_BUF_DATA_FORMAT_32,
- V_008F0C_BUF_DATA_FORMAT_32_32,
- V_008F0C_BUF_DATA_FORMAT_32_32_32,
- V_008F0C_BUF_DATA_FORMAT_32_32_32_32
- };
- unsigned dfmt = dfmts[num_channels - 1];
- unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
- LLVMValueRef immoffset = LLVMConstInt(ctx->i32, inst_offset, 0);
-
- ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset,
- immoffset, num_channels, dfmt, nfmt, cache_policy);
-}
-
-static LLVMValueRef
-ac_build_buffer_load_common(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- unsigned num_channels,
- LLVMTypeRef channel_type,
- unsigned cache_policy,
- bool can_speculate,
- bool use_format,
- bool structurized)
-{
- LLVMValueRef args[5];
- int idx = 0;
- args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, "");
- if (structurized)
- args[idx++] = vindex ? vindex : ctx->i32_0;
- args[idx++] = voffset ? voffset : ctx->i32_0;
- args[idx++] = soffset ? soffset : ctx->i32_0;
- args[idx++] = LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0);
- unsigned func = !ac_has_vec3_support(ctx->chip_class, use_format) && num_channels == 3 ? 4 : num_channels;
- const char *indexing_kind = structurized ? "struct" : "raw";
- char name[256], type_name[8];
-
- LLVMTypeRef type = func > 1 ? LLVMVectorType(channel_type, func) : channel_type;
- ac_build_type_name_for_intr(type, type_name, sizeof(type_name));
-
- if (use_format) {
- snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.load.format.%s",
- indexing_kind, type_name);
- } else {
- snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.load.%s",
- indexing_kind, type_name);
- }
-
- return ac_build_intrinsic(ctx, name, type, args, idx,
- ac_get_load_intr_attribs(can_speculate));
-}
-
-LLVMValueRef
-ac_build_buffer_load(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- int num_channels,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- unsigned inst_offset,
- unsigned cache_policy,
- bool can_speculate,
- bool allow_smem)
-{
- LLVMValueRef offset = LLVMConstInt(ctx->i32, inst_offset, 0);
- if (voffset)
- offset = LLVMBuildAdd(ctx->builder, offset, voffset, "");
- if (soffset)
- offset = LLVMBuildAdd(ctx->builder, offset, soffset, "");
-
- if (allow_smem && !(cache_policy & ac_slc) &&
- (!(cache_policy & ac_glc) || ctx->chip_class >= GFX8)) {
- assert(vindex == NULL);
-
- LLVMValueRef result[8];
-
- for (int i = 0; i < num_channels; i++) {
- if (i) {
- offset = LLVMBuildAdd(ctx->builder, offset,
- LLVMConstInt(ctx->i32, 4, 0), "");
- }
- LLVMValueRef args[3] = {
- rsrc,
- offset,
- LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0),
- };
- result[i] = ac_build_intrinsic(ctx,
- "llvm.amdgcn.s.buffer.load.f32",
- ctx->f32, args, 3,
- AC_FUNC_ATTR_READNONE);
- }
- if (num_channels == 1)
- return result[0];
-
- if (num_channels == 3 && !ac_has_vec3_support(ctx->chip_class, false))
- result[num_channels++] = LLVMGetUndef(ctx->f32);
- return ac_build_gather_values(ctx, result, num_channels);
- }
-
- return ac_build_buffer_load_common(ctx, rsrc, vindex,
- offset, ctx->i32_0,
- num_channels, ctx->f32,
- cache_policy,
- can_speculate, false, false);
-}
-
-LLVMValueRef ac_build_buffer_load_format(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- unsigned num_channels,
- unsigned cache_policy,
- bool can_speculate)
-{
- return ac_build_buffer_load_common(ctx, rsrc, vindex, voffset,
- ctx->i32_0, num_channels, ctx->f32,
- cache_policy, can_speculate,
- true, true);
-}
-
-static LLVMValueRef
-ac_build_tbuffer_load(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- LLVMValueRef immoffset,
- unsigned num_channels,
- unsigned dfmt,
- unsigned nfmt,
- unsigned cache_policy,
- bool can_speculate,
- bool structurized)
-{
- voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, "");
-
- LLVMValueRef args[6];
- int idx = 0;
- args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, "");
- if (structurized)
- args[idx++] = vindex ? vindex : ctx->i32_0;
- args[idx++] = voffset ? voffset : ctx->i32_0;
- args[idx++] = soffset ? soffset : ctx->i32_0;
- args[idx++] = LLVMConstInt(ctx->i32, ac_get_tbuffer_format(ctx->chip_class, dfmt, nfmt), 0);
- args[idx++] = LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0);
- unsigned func = !ac_has_vec3_support(ctx->chip_class, true) && num_channels == 3 ? 4 : num_channels;
- const char *indexing_kind = structurized ? "struct" : "raw";
- char name[256], type_name[8];
-
- LLVMTypeRef type = func > 1 ? LLVMVectorType(ctx->i32, func) : ctx->i32;
- ac_build_type_name_for_intr(type, type_name, sizeof(type_name));
-
- snprintf(name, sizeof(name), "llvm.amdgcn.%s.tbuffer.load.%s",
- indexing_kind, type_name);
-
- return ac_build_intrinsic(ctx, name, type, args, idx,
- ac_get_load_intr_attribs(can_speculate));
-}
-
-LLVMValueRef
-ac_build_struct_tbuffer_load(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- LLVMValueRef immoffset,
- unsigned num_channels,
- unsigned dfmt,
- unsigned nfmt,
- unsigned cache_policy,
- bool can_speculate)
-{
- return ac_build_tbuffer_load(ctx, rsrc, vindex, voffset, soffset,
- immoffset, num_channels, dfmt, nfmt,
- cache_policy, can_speculate, true);
-}
-
-LLVMValueRef
-ac_build_raw_tbuffer_load(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- LLVMValueRef immoffset,
- unsigned num_channels,
- unsigned dfmt,
- unsigned nfmt,
- unsigned cache_policy,
- bool can_speculate)
-{
- return ac_build_tbuffer_load(ctx, rsrc, NULL, voffset, soffset,
- immoffset, num_channels, dfmt, nfmt,
- cache_policy, can_speculate, false);
-}
-
-LLVMValueRef
-ac_build_tbuffer_load_short(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- LLVMValueRef immoffset,
- unsigned cache_policy)
-{
- LLVMValueRef res;
-
- if (LLVM_VERSION_MAJOR >= 9) {
- voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, "");
-
- /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */
- res = ac_build_buffer_load_common(ctx, rsrc, NULL,
- voffset, soffset,
- 1, ctx->i16, cache_policy,
- false, false, false);
- } else {
- unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_16;
- unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
-
- res = ac_build_raw_tbuffer_load(ctx, rsrc, voffset, soffset,
- immoffset, 1, dfmt, nfmt, cache_policy,
- false);
-
- res = LLVMBuildTrunc(ctx->builder, res, ctx->i16, "");
- }
-
- return res;
-}
-
-LLVMValueRef
-ac_build_tbuffer_load_byte(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- LLVMValueRef immoffset,
- unsigned cache_policy)
-{
- LLVMValueRef res;
-
- if (LLVM_VERSION_MAJOR >= 9) {
- voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, "");
-
- /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */
- res = ac_build_buffer_load_common(ctx, rsrc, NULL,
- voffset, soffset,
- 1, ctx->i8, cache_policy,
- false, false, false);
- } else {
- unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_8;
- unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
+void ac_build_buffer_store_dword(struct ac_llvm_context *ctx, LLVMValueRef rsrc, LLVMValueRef vdata,
+ unsigned num_channels, LLVMValueRef voffset, LLVMValueRef soffset,
+ unsigned inst_offset, unsigned cache_policy)
+{
+ /* Split 3 channel stores, because only LLVM 9+ support 3-channel
+ * intrinsics. */
+ if (num_channels == 3 && !ac_has_vec3_support(ctx->chip_class, false)) {
+ LLVMValueRef v[3], v01;
+
+ for (int i = 0; i < 3; i++) {
+ v[i] = LLVMBuildExtractElement(ctx->builder, vdata, LLVMConstInt(ctx->i32, i, 0), "");
+ }
+ v01 = ac_build_gather_values(ctx, v, 2);
+
+ ac_build_buffer_store_dword(ctx, rsrc, v01, 2, voffset, soffset, inst_offset, cache_policy);
+ ac_build_buffer_store_dword(ctx, rsrc, v[2], 1, voffset, soffset, inst_offset + 8,
+ cache_policy);
+ return;
+ }
+
+ /* SWIZZLE_ENABLE requires that soffset isn't folded into voffset
+ * (voffset is swizzled, but soffset isn't swizzled).
+ * llvm.amdgcn.buffer.store doesn't have a separate soffset parameter.
+ */
+ if (!(cache_policy & ac_swizzled)) {
+ LLVMValueRef offset = soffset;
+
+ if (inst_offset)
+ offset = LLVMBuildAdd(ctx->builder, offset, LLVMConstInt(ctx->i32, inst_offset, 0), "");
+
+ ac_build_buffer_store_common(ctx, rsrc, ac_to_float(ctx, vdata), ctx->i32_0, voffset, offset,
+ cache_policy, false, false);
+ return;
+ }
+
+ static const unsigned dfmts[] = {V_008F0C_BUF_DATA_FORMAT_32, V_008F0C_BUF_DATA_FORMAT_32_32,
+ V_008F0C_BUF_DATA_FORMAT_32_32_32,
+ V_008F0C_BUF_DATA_FORMAT_32_32_32_32};
+ unsigned dfmt = dfmts[num_channels - 1];
+ unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
+ LLVMValueRef immoffset = LLVMConstInt(ctx->i32, inst_offset, 0);
+
+ ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, immoffset, num_channels, dfmt,
+ nfmt, cache_policy);
+}
+
+static LLVMValueRef ac_build_buffer_load_common(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef vindex, LLVMValueRef voffset,
+ LLVMValueRef soffset, unsigned num_channels,
+ LLVMTypeRef channel_type, unsigned cache_policy,
+ bool can_speculate, bool use_format,
+ bool structurized)
+{
+ LLVMValueRef args[5];
+ int idx = 0;
+ args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, "");
+ if (structurized)
+ args[idx++] = vindex ? vindex : ctx->i32_0;
+ args[idx++] = voffset ? voffset : ctx->i32_0;
+ args[idx++] = soffset ? soffset : ctx->i32_0;
+ args[idx++] = LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0);
+ unsigned func =
+ !ac_has_vec3_support(ctx->chip_class, use_format) && num_channels == 3 ? 4 : num_channels;
+ const char *indexing_kind = structurized ? "struct" : "raw";
+ char name[256], type_name[8];
+
+ /* D16 is only supported on gfx8+ */
+ assert(!use_format || (channel_type != ctx->f16 && channel_type != ctx->i16) ||
+ ctx->chip_class >= GFX8);
+
+ LLVMTypeRef type = func > 1 ? LLVMVectorType(channel_type, func) : channel_type;
+ ac_build_type_name_for_intr(type, type_name, sizeof(type_name));
+
+ if (use_format) {
+ snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.load.format.%s", indexing_kind,
+ type_name);
+ } else {
+ snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.load.%s", indexing_kind, type_name);
+ }
+
+ return ac_build_intrinsic(ctx, name, type, args, idx, ac_get_load_intr_attribs(can_speculate));
+}
+
+LLVMValueRef ac_build_buffer_load(struct ac_llvm_context *ctx, LLVMValueRef rsrc, int num_channels,
+ LLVMValueRef vindex, LLVMValueRef voffset, LLVMValueRef soffset,
+ unsigned inst_offset, unsigned cache_policy, bool can_speculate,
+ bool allow_smem)
+{
+ LLVMValueRef offset = LLVMConstInt(ctx->i32, inst_offset, 0);
+ if (voffset)
+ offset = LLVMBuildAdd(ctx->builder, offset, voffset, "");
+ if (soffset)
+ offset = LLVMBuildAdd(ctx->builder, offset, soffset, "");
+
+ if (allow_smem && !(cache_policy & ac_slc) &&
+ (!(cache_policy & ac_glc) || ctx->chip_class >= GFX8)) {
+ assert(vindex == NULL);
+
+ LLVMValueRef result[8];
+
+ for (int i = 0; i < num_channels; i++) {
+ if (i) {
+ offset = LLVMBuildAdd(ctx->builder, offset, LLVMConstInt(ctx->i32, 4, 0), "");
+ }
+ LLVMValueRef args[3] = {
+ rsrc,
+ offset,
+ LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0),
+ };
+ result[i] = ac_build_intrinsic(ctx, "llvm.amdgcn.s.buffer.load.f32", ctx->f32, args, 3,
+ AC_FUNC_ATTR_READNONE);
+ }
+ if (num_channels == 1)
+ return result[0];
+
+ if (num_channels == 3 && !ac_has_vec3_support(ctx->chip_class, false))
+ result[num_channels++] = LLVMGetUndef(ctx->f32);
+ return ac_build_gather_values(ctx, result, num_channels);
+ }
+
+ return ac_build_buffer_load_common(ctx, rsrc, vindex, offset, ctx->i32_0, num_channels, ctx->f32,
+ cache_policy, can_speculate, false, false);
+}
+
+LLVMValueRef ac_build_buffer_load_format(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef vindex, LLVMValueRef voffset,
+ unsigned num_channels, unsigned cache_policy,
+ bool can_speculate, bool d16)
+{
+ return ac_build_buffer_load_common(ctx, rsrc, vindex, voffset, ctx->i32_0, num_channels,
+ d16 ? ctx->f16 : ctx->f32, cache_policy, can_speculate, true,
+ true);
+}
+
+static LLVMValueRef ac_build_tbuffer_load(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef vindex, LLVMValueRef voffset,
+ LLVMValueRef soffset, LLVMValueRef immoffset,
+ unsigned num_channels, unsigned dfmt, unsigned nfmt,
+ unsigned cache_policy, bool can_speculate,
+ bool structurized)
+{
+ voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, "");
+
+ LLVMValueRef args[6];
+ int idx = 0;
+ args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, "");
+ if (structurized)
+ args[idx++] = vindex ? vindex : ctx->i32_0;
+ args[idx++] = voffset ? voffset : ctx->i32_0;
+ args[idx++] = soffset ? soffset : ctx->i32_0;
+ args[idx++] = LLVMConstInt(ctx->i32, ac_get_tbuffer_format(ctx->chip_class, dfmt, nfmt), 0);
+ args[idx++] = LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0);
+ unsigned func =
+ !ac_has_vec3_support(ctx->chip_class, true) && num_channels == 3 ? 4 : num_channels;
+ const char *indexing_kind = structurized ? "struct" : "raw";
+ char name[256], type_name[8];
+
+ LLVMTypeRef type = func > 1 ? LLVMVectorType(ctx->i32, func) : ctx->i32;
+ ac_build_type_name_for_intr(type, type_name, sizeof(type_name));
+
+ snprintf(name, sizeof(name), "llvm.amdgcn.%s.tbuffer.load.%s", indexing_kind, type_name);
+
+ return ac_build_intrinsic(ctx, name, type, args, idx, ac_get_load_intr_attribs(can_speculate));
+}
+
+LLVMValueRef ac_build_struct_tbuffer_load(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef vindex, LLVMValueRef voffset,
+ LLVMValueRef soffset, LLVMValueRef immoffset,
+ unsigned num_channels, unsigned dfmt, unsigned nfmt,
+ unsigned cache_policy, bool can_speculate)
+{
+ return ac_build_tbuffer_load(ctx, rsrc, vindex, voffset, soffset, immoffset, num_channels, dfmt,
+ nfmt, cache_policy, can_speculate, true);
+}
+
+LLVMValueRef ac_build_raw_tbuffer_load(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef voffset, LLVMValueRef soffset,
+ LLVMValueRef immoffset, unsigned num_channels, unsigned dfmt,
+ unsigned nfmt, unsigned cache_policy, bool can_speculate)
+{
+ return ac_build_tbuffer_load(ctx, rsrc, NULL, voffset, soffset, immoffset, num_channels, dfmt,
+ nfmt, cache_policy, can_speculate, false);
+}
+
+LLVMValueRef ac_build_tbuffer_load_short(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef voffset, LLVMValueRef soffset,
+ LLVMValueRef immoffset, unsigned cache_policy)
+{
+ LLVMValueRef res;
+
+ if (LLVM_VERSION_MAJOR >= 9) {
+ voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, "");
+
+ /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */
+ res = ac_build_buffer_load_common(ctx, rsrc, NULL, voffset, soffset, 1, ctx->i16,
+ cache_policy, false, false, false);
+ } else {
+ unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_16;
+ unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
+
+ res = ac_build_raw_tbuffer_load(ctx, rsrc, voffset, soffset, immoffset, 1, dfmt, nfmt,
+ cache_policy, false);
+
+ res = LLVMBuildTrunc(ctx->builder, res, ctx->i16, "");
+ }
+
+ return res;
+}
+
+LLVMValueRef ac_build_tbuffer_load_byte(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef voffset, LLVMValueRef soffset,
+ LLVMValueRef immoffset, unsigned cache_policy)
+{
+ LLVMValueRef res;
+
+ if (LLVM_VERSION_MAJOR >= 9) {
+ voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, "");
+
+ /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */
+ res = ac_build_buffer_load_common(ctx, rsrc, NULL, voffset, soffset, 1, ctx->i8, cache_policy,
+ false, false, false);
+ } else {
+ unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_8;
+ unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
+
+ res = ac_build_raw_tbuffer_load(ctx, rsrc, voffset, soffset, immoffset, 1, dfmt, nfmt,
+ cache_policy, false);
- res = ac_build_raw_tbuffer_load(ctx, rsrc, voffset, soffset,
- immoffset, 1, dfmt, nfmt, cache_policy,
- false);
+ res = LLVMBuildTrunc(ctx->builder, res, ctx->i8, "");
+ }
- res = LLVMBuildTrunc(ctx->builder, res, ctx->i8, "");
- }
-
- return res;
+ return res;
}
/**
* The input exponent is expected to be biased analogous to IEEE-754, i.e. by
* 2^(exp_bits-1) - 1 (as defined in OpenGL and other graphics APIs).
*/
-static LLVMValueRef
-ac_ufN_to_float(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned exp_bits, unsigned mant_bits)
+static LLVMValueRef ac_ufN_to_float(struct ac_llvm_context *ctx, LLVMValueRef src,
+ unsigned exp_bits, unsigned mant_bits)
{
- assert(LLVMTypeOf(src) == ctx->i32);
+ assert(LLVMTypeOf(src) == ctx->i32);
- LLVMValueRef tmp;
- LLVMValueRef mantissa;
- mantissa = LLVMBuildAnd(ctx->builder, src, LLVMConstInt(ctx->i32, (1 << mant_bits) - 1, false), "");
+ LLVMValueRef tmp;
+ LLVMValueRef mantissa;
+ mantissa =
+ LLVMBuildAnd(ctx->builder, src, LLVMConstInt(ctx->i32, (1 << mant_bits) - 1, false), "");
- /* Converting normal numbers is just a shift + correcting the exponent bias */
- unsigned normal_shift = 23 - mant_bits;
- unsigned bias_shift = 127 - ((1 << (exp_bits - 1)) - 1);
- LLVMValueRef shifted, normal;
+ /* Converting normal numbers is just a shift + correcting the exponent bias */
+ unsigned normal_shift = 23 - mant_bits;
+ unsigned bias_shift = 127 - ((1 << (exp_bits - 1)) - 1);
+ LLVMValueRef shifted, normal;
- shifted = LLVMBuildShl(ctx->builder, src, LLVMConstInt(ctx->i32, normal_shift, false), "");
- normal = LLVMBuildAdd(ctx->builder, shifted, LLVMConstInt(ctx->i32, bias_shift << 23, false), "");
+ shifted = LLVMBuildShl(ctx->builder, src, LLVMConstInt(ctx->i32, normal_shift, false), "");
+ normal =
+ LLVMBuildAdd(ctx->builder, shifted, LLVMConstInt(ctx->i32, bias_shift << 23, false), "");
- /* Converting nan/inf numbers is the same, but with a different exponent update */
- LLVMValueRef naninf;
- naninf = LLVMBuildOr(ctx->builder, normal, LLVMConstInt(ctx->i32, 0xff << 23, false), "");
+ /* Converting nan/inf numbers is the same, but with a different exponent update */
+ LLVMValueRef naninf;
+ naninf = LLVMBuildOr(ctx->builder, normal, LLVMConstInt(ctx->i32, 0xff << 23, false), "");
- /* Converting denormals is the complex case: determine the leading zeros of the
- * mantissa to obtain the correct shift for the mantissa and exponent correction.
- */
- LLVMValueRef denormal;
- LLVMValueRef params[2] = {
- mantissa,
- ctx->i1true, /* result can be undef when arg is 0 */
- };
- LLVMValueRef ctlz = ac_build_intrinsic(ctx, "llvm.ctlz.i32", ctx->i32,
- params, 2, AC_FUNC_ATTR_READNONE);
+ /* Converting denormals is the complex case: determine the leading zeros of the
+ * mantissa to obtain the correct shift for the mantissa and exponent correction.
+ */
+ LLVMValueRef denormal;
+ LLVMValueRef params[2] = {
+ mantissa, ctx->i1true, /* result can be undef when arg is 0 */
+ };
+ LLVMValueRef ctlz =
+ ac_build_intrinsic(ctx, "llvm.ctlz.i32", ctx->i32, params, 2, AC_FUNC_ATTR_READNONE);
- /* Shift such that the leading 1 ends up as the LSB of the exponent field. */
- tmp = LLVMBuildSub(ctx->builder, ctlz, LLVMConstInt(ctx->i32, 8, false), "");
- denormal = LLVMBuildShl(ctx->builder, mantissa, tmp, "");
+ /* Shift such that the leading 1 ends up as the LSB of the exponent field. */
+ tmp = LLVMBuildSub(ctx->builder, ctlz, LLVMConstInt(ctx->i32, 8, false), "");
+ denormal = LLVMBuildShl(ctx->builder, mantissa, tmp, "");
- unsigned denormal_exp = bias_shift + (32 - mant_bits) - 1;
- tmp = LLVMBuildSub(ctx->builder, LLVMConstInt(ctx->i32, denormal_exp, false), ctlz, "");
- tmp = LLVMBuildShl(ctx->builder, tmp, LLVMConstInt(ctx->i32, 23, false), "");
- denormal = LLVMBuildAdd(ctx->builder, denormal, tmp, "");
+ unsigned denormal_exp = bias_shift + (32 - mant_bits) - 1;
+ tmp = LLVMBuildSub(ctx->builder, LLVMConstInt(ctx->i32, denormal_exp, false), ctlz, "");
+ tmp = LLVMBuildShl(ctx->builder, tmp, LLVMConstInt(ctx->i32, 23, false), "");
+ denormal = LLVMBuildAdd(ctx->builder, denormal, tmp, "");
- /* Select the final result. */
- LLVMValueRef result;
+ /* Select the final result. */
+ LLVMValueRef result;
- tmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, src,
- LLVMConstInt(ctx->i32, ((1 << exp_bits) - 1) << mant_bits, false), "");
- result = LLVMBuildSelect(ctx->builder, tmp, naninf, normal, "");
+ tmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, src,
+ LLVMConstInt(ctx->i32, ((1 << exp_bits) - 1) << mant_bits, false), "");
+ result = LLVMBuildSelect(ctx->builder, tmp, naninf, normal, "");
- tmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, src,
- LLVMConstInt(ctx->i32, 1 << mant_bits, false), "");
- result = LLVMBuildSelect(ctx->builder, tmp, result, denormal, "");
+ tmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, src, LLVMConstInt(ctx->i32, 1 << mant_bits, false),
+ "");
+ result = LLVMBuildSelect(ctx->builder, tmp, result, denormal, "");
- tmp = LLVMBuildICmp(ctx->builder, LLVMIntNE, src, ctx->i32_0, "");
- result = LLVMBuildSelect(ctx->builder, tmp, result, ctx->i32_0, "");
+ tmp = LLVMBuildICmp(ctx->builder, LLVMIntNE, src, ctx->i32_0, "");
+ result = LLVMBuildSelect(ctx->builder, tmp, result, ctx->i32_0, "");
- return ac_to_float(ctx, result);
+ return ac_to_float(ctx, result);
}
/**
* \param rsrc buffer resource descriptor
* \return the resulting vector of floats or integers bitcast to <4 x i32>
*/
-LLVMValueRef
-ac_build_opencoded_load_format(struct ac_llvm_context *ctx,
- unsigned log_size,
- unsigned num_channels,
- unsigned format,
- bool reverse,
- bool known_aligned,
- LLVMValueRef rsrc,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- unsigned cache_policy,
- bool can_speculate)
-{
- LLVMValueRef tmp;
- unsigned load_log_size = log_size;
- unsigned load_num_channels = num_channels;
- if (log_size == 3) {
- load_log_size = 2;
- if (format == AC_FETCH_FORMAT_FLOAT) {
- load_num_channels = 2 * num_channels;
- } else {
- load_num_channels = 1; /* 10_11_11 or 2_10_10_10 */
- }
- }
-
- int log_recombine = 0;
- if (ctx->chip_class == GFX6 && !known_aligned) {
- /* Avoid alignment restrictions by loading one byte at a time. */
- load_num_channels <<= load_log_size;
- log_recombine = load_log_size;
- load_log_size = 0;
- } else if (load_num_channels == 2 || load_num_channels == 4) {
- log_recombine = -util_logbase2(load_num_channels);
- load_num_channels = 1;
- load_log_size += -log_recombine;
- }
-
- assert(load_log_size >= 2 || LLVM_VERSION_MAJOR >= 9);
-
- LLVMValueRef loads[32]; /* up to 32 bytes */
- for (unsigned i = 0; i < load_num_channels; ++i) {
- tmp = LLVMBuildAdd(ctx->builder, soffset,
- LLVMConstInt(ctx->i32, i << load_log_size, false), "");
- LLVMTypeRef channel_type = load_log_size == 0 ? ctx->i8 :
- load_log_size == 1 ? ctx->i16 : ctx->i32;
- unsigned num_channels = 1 << (MAX2(load_log_size, 2) - 2);
- loads[i] = ac_build_buffer_load_common(
- ctx, rsrc, vindex, voffset, tmp,
- num_channels, channel_type, cache_policy,
- can_speculate, false, true);
- if (load_log_size >= 2)
- loads[i] = ac_to_integer(ctx, loads[i]);
- }
-
- if (log_recombine > 0) {
- /* Recombine bytes if necessary (GFX6 only) */
- LLVMTypeRef dst_type = log_recombine == 2 ? ctx->i32 : ctx->i16;
-
- for (unsigned src = 0, dst = 0; src < load_num_channels; ++dst) {
- LLVMValueRef accum = NULL;
- for (unsigned i = 0; i < (1 << log_recombine); ++i, ++src) {
- tmp = LLVMBuildZExt(ctx->builder, loads[src], dst_type, "");
- if (i == 0) {
- accum = tmp;
- } else {
- tmp = LLVMBuildShl(ctx->builder, tmp,
- LLVMConstInt(dst_type, 8 * i, false), "");
- accum = LLVMBuildOr(ctx->builder, accum, tmp, "");
- }
- }
- loads[dst] = accum;
- }
- } else if (log_recombine < 0) {
- /* Split vectors of dwords */
- if (load_log_size > 2) {
- assert(load_num_channels == 1);
- LLVMValueRef loaded = loads[0];
- unsigned log_split = load_log_size - 2;
- log_recombine += log_split;
- load_num_channels = 1 << log_split;
- load_log_size = 2;
- for (unsigned i = 0; i < load_num_channels; ++i) {
- tmp = LLVMConstInt(ctx->i32, i, false);
- loads[i] = LLVMBuildExtractElement(ctx->builder, loaded, tmp, "");
- }
- }
-
- /* Further split dwords and shorts if required */
- if (log_recombine < 0) {
- for (unsigned src = load_num_channels,
- dst = load_num_channels << -log_recombine;
- src > 0; --src) {
- unsigned dst_bits = 1 << (3 + load_log_size + log_recombine);
- LLVMTypeRef dst_type = LLVMIntTypeInContext(ctx->context, dst_bits);
- LLVMValueRef loaded = loads[src - 1];
- LLVMTypeRef loaded_type = LLVMTypeOf(loaded);
- for (unsigned i = 1 << -log_recombine; i > 0; --i, --dst) {
- tmp = LLVMConstInt(loaded_type, dst_bits * (i - 1), false);
- tmp = LLVMBuildLShr(ctx->builder, loaded, tmp, "");
- loads[dst - 1] = LLVMBuildTrunc(ctx->builder, tmp, dst_type, "");
- }
- }
- }
- }
-
- if (log_size == 3) {
- if (format == AC_FETCH_FORMAT_FLOAT) {
- for (unsigned i = 0; i < num_channels; ++i) {
- tmp = ac_build_gather_values(ctx, &loads[2 * i], 2);
- loads[i] = LLVMBuildBitCast(ctx->builder, tmp, ctx->f64, "");
- }
- } else if (format == AC_FETCH_FORMAT_FIXED) {
- /* 10_11_11_FLOAT */
- LLVMValueRef data = loads[0];
- LLVMValueRef i32_2047 = LLVMConstInt(ctx->i32, 2047, false);
- LLVMValueRef r = LLVMBuildAnd(ctx->builder, data, i32_2047, "");
- tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 11, false), "");
- LLVMValueRef g = LLVMBuildAnd(ctx->builder, tmp, i32_2047, "");
- LLVMValueRef b = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 22, false), "");
-
- loads[0] = ac_to_integer(ctx, ac_ufN_to_float(ctx, r, 5, 6));
- loads[1] = ac_to_integer(ctx, ac_ufN_to_float(ctx, g, 5, 6));
- loads[2] = ac_to_integer(ctx, ac_ufN_to_float(ctx, b, 5, 5));
-
- num_channels = 3;
- log_size = 2;
- format = AC_FETCH_FORMAT_FLOAT;
- } else {
- /* 2_10_10_10 data formats */
- LLVMValueRef data = loads[0];
- LLVMTypeRef i10 = LLVMIntTypeInContext(ctx->context, 10);
- LLVMTypeRef i2 = LLVMIntTypeInContext(ctx->context, 2);
- loads[0] = LLVMBuildTrunc(ctx->builder, data, i10, "");
- tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 10, false), "");
- loads[1] = LLVMBuildTrunc(ctx->builder, tmp, i10, "");
- tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 20, false), "");
- loads[2] = LLVMBuildTrunc(ctx->builder, tmp, i10, "");
- tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 30, false), "");
- loads[3] = LLVMBuildTrunc(ctx->builder, tmp, i2, "");
-
- num_channels = 4;
- }
- }
-
- if (format == AC_FETCH_FORMAT_FLOAT) {
- if (log_size != 2) {
- for (unsigned chan = 0; chan < num_channels; ++chan) {
- tmp = ac_to_float(ctx, loads[chan]);
- if (log_size == 3)
- tmp = LLVMBuildFPTrunc(ctx->builder, tmp, ctx->f32, "");
- else if (log_size == 1)
- tmp = LLVMBuildFPExt(ctx->builder, tmp, ctx->f32, "");
- loads[chan] = ac_to_integer(ctx, tmp);
- }
- }
- } else if (format == AC_FETCH_FORMAT_UINT) {
- if (log_size != 2) {
- for (unsigned chan = 0; chan < num_channels; ++chan)
- loads[chan] = LLVMBuildZExt(ctx->builder, loads[chan], ctx->i32, "");
- }
- } else if (format == AC_FETCH_FORMAT_SINT) {
- if (log_size != 2) {
- for (unsigned chan = 0; chan < num_channels; ++chan)
- loads[chan] = LLVMBuildSExt(ctx->builder, loads[chan], ctx->i32, "");
- }
- } else {
- bool unsign = format == AC_FETCH_FORMAT_UNORM ||
- format == AC_FETCH_FORMAT_USCALED ||
- format == AC_FETCH_FORMAT_UINT;
-
- for (unsigned chan = 0; chan < num_channels; ++chan) {
- if (unsign) {
- tmp = LLVMBuildUIToFP(ctx->builder, loads[chan], ctx->f32, "");
- } else {
- tmp = LLVMBuildSIToFP(ctx->builder, loads[chan], ctx->f32, "");
- }
-
- LLVMValueRef scale = NULL;
- if (format == AC_FETCH_FORMAT_FIXED) {
- assert(log_size == 2);
- scale = LLVMConstReal(ctx->f32, 1.0 / 0x10000);
- } else if (format == AC_FETCH_FORMAT_UNORM) {
- unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(loads[chan]));
- scale = LLVMConstReal(ctx->f32, 1.0 / (((uint64_t)1 << bits) - 1));
- } else if (format == AC_FETCH_FORMAT_SNORM) {
- unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(loads[chan]));
- scale = LLVMConstReal(ctx->f32, 1.0 / (((uint64_t)1 << (bits - 1)) - 1));
- }
- if (scale)
- tmp = LLVMBuildFMul(ctx->builder, tmp, scale, "");
-
- if (format == AC_FETCH_FORMAT_SNORM) {
- /* Clamp to [-1, 1] */
- LLVMValueRef neg_one = LLVMConstReal(ctx->f32, -1.0);
- LLVMValueRef clamp =
- LLVMBuildFCmp(ctx->builder, LLVMRealULT, tmp, neg_one, "");
- tmp = LLVMBuildSelect(ctx->builder, clamp, neg_one, tmp, "");
- }
-
- loads[chan] = ac_to_integer(ctx, tmp);
- }
- }
-
- while (num_channels < 4) {
- if (format == AC_FETCH_FORMAT_UINT || format == AC_FETCH_FORMAT_SINT) {
- loads[num_channels] = num_channels == 3 ? ctx->i32_1 : ctx->i32_0;
- } else {
- loads[num_channels] = ac_to_integer(ctx, num_channels == 3 ? ctx->f32_1 : ctx->f32_0);
- }
- num_channels++;
- }
-
- if (reverse) {
- tmp = loads[0];
- loads[0] = loads[2];
- loads[2] = tmp;
- }
-
- return ac_build_gather_values(ctx, loads, 4);
-}
-
-static void
-ac_build_tbuffer_store(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vdata,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- LLVMValueRef immoffset,
- unsigned num_channels,
- unsigned dfmt,
- unsigned nfmt,
- unsigned cache_policy,
- bool structurized)
-{
- voffset = LLVMBuildAdd(ctx->builder, voffset ? voffset : ctx->i32_0,
- immoffset, "");
-
- LLVMValueRef args[7];
- int idx = 0;
- args[idx++] = vdata;
- args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, "");
- if (structurized)
- args[idx++] = vindex ? vindex : ctx->i32_0;
- args[idx++] = voffset ? voffset : ctx->i32_0;
- args[idx++] = soffset ? soffset : ctx->i32_0;
- args[idx++] = LLVMConstInt(ctx->i32, ac_get_tbuffer_format(ctx->chip_class, dfmt, nfmt), 0);
- args[idx++] = LLVMConstInt(ctx->i32, cache_policy, 0);
- unsigned func = !ac_has_vec3_support(ctx->chip_class, true) && num_channels == 3 ? 4 : num_channels;
- const char *indexing_kind = structurized ? "struct" : "raw";
- char name[256], type_name[8];
-
- LLVMTypeRef type = func > 1 ? LLVMVectorType(ctx->i32, func) : ctx->i32;
- ac_build_type_name_for_intr(type, type_name, sizeof(type_name));
-
- snprintf(name, sizeof(name), "llvm.amdgcn.%s.tbuffer.store.%s",
- indexing_kind, type_name);
-
- ac_build_intrinsic(ctx, name, ctx->voidt, args, idx,
- AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY);
-}
-
-void
-ac_build_struct_tbuffer_store(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vdata,
- LLVMValueRef vindex,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- LLVMValueRef immoffset,
- unsigned num_channels,
- unsigned dfmt,
- unsigned nfmt,
- unsigned cache_policy)
-{
- ac_build_tbuffer_store(ctx, rsrc, vdata, vindex, voffset, soffset,
- immoffset, num_channels, dfmt, nfmt, cache_policy,
- true);
-}
-
-void
-ac_build_raw_tbuffer_store(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vdata,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- LLVMValueRef immoffset,
- unsigned num_channels,
- unsigned dfmt,
- unsigned nfmt,
- unsigned cache_policy)
-{
- ac_build_tbuffer_store(ctx, rsrc, vdata, NULL, voffset, soffset,
- immoffset, num_channels, dfmt, nfmt, cache_policy,
- false);
-}
-
-void
-ac_build_tbuffer_store_short(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vdata,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- unsigned cache_policy)
-{
- vdata = LLVMBuildBitCast(ctx->builder, vdata, ctx->i16, "");
-
- if (LLVM_VERSION_MAJOR >= 9) {
- /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */
- ac_build_buffer_store_common(ctx, rsrc, vdata, NULL,
- voffset, soffset, 1,
- ctx->i16, cache_policy,
- false, false);
- } else {
- unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_16;
- unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
-
- vdata = LLVMBuildZExt(ctx->builder, vdata, ctx->i32, "");
-
- ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset,
- ctx->i32_0, 1, dfmt, nfmt, cache_policy);
- }
-}
-
-void
-ac_build_tbuffer_store_byte(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc,
- LLVMValueRef vdata,
- LLVMValueRef voffset,
- LLVMValueRef soffset,
- unsigned cache_policy)
-{
- vdata = LLVMBuildBitCast(ctx->builder, vdata, ctx->i8, "");
-
- if (LLVM_VERSION_MAJOR >= 9) {
- /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */
- ac_build_buffer_store_common(ctx, rsrc, vdata, NULL,
- voffset, soffset, 1,
- ctx->i8, cache_policy,
- false, false);
- } else {
- unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_8;
- unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
-
- vdata = LLVMBuildZExt(ctx->builder, vdata, ctx->i32, "");
-
- ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset,
- ctx->i32_0, 1, dfmt, nfmt, cache_policy);
- }
+LLVMValueRef ac_build_opencoded_load_format(struct ac_llvm_context *ctx, unsigned log_size,
+ unsigned num_channels, unsigned format, bool reverse,
+ bool known_aligned, LLVMValueRef rsrc,
+ LLVMValueRef vindex, LLVMValueRef voffset,
+ LLVMValueRef soffset, unsigned cache_policy,
+ bool can_speculate)
+{
+ LLVMValueRef tmp;
+ unsigned load_log_size = log_size;
+ unsigned load_num_channels = num_channels;
+ if (log_size == 3) {
+ load_log_size = 2;
+ if (format == AC_FETCH_FORMAT_FLOAT) {
+ load_num_channels = 2 * num_channels;
+ } else {
+ load_num_channels = 1; /* 10_11_11 or 2_10_10_10 */
+ }
+ }
+
+ int log_recombine = 0;
+ if ((ctx->chip_class == GFX6 || ctx->chip_class >= GFX10) && !known_aligned) {
+ /* Avoid alignment restrictions by loading one byte at a time. */
+ load_num_channels <<= load_log_size;
+ log_recombine = load_log_size;
+ load_log_size = 0;
+ } else if (load_num_channels == 2 || load_num_channels == 4) {
+ log_recombine = -util_logbase2(load_num_channels);
+ load_num_channels = 1;
+ load_log_size += -log_recombine;
+ }
+
+ assert(load_log_size >= 2 || LLVM_VERSION_MAJOR >= 9);
+
+ LLVMValueRef loads[32]; /* up to 32 bytes */
+ for (unsigned i = 0; i < load_num_channels; ++i) {
+ tmp =
+ LLVMBuildAdd(ctx->builder, soffset, LLVMConstInt(ctx->i32, i << load_log_size, false), "");
+ LLVMTypeRef channel_type =
+ load_log_size == 0 ? ctx->i8 : load_log_size == 1 ? ctx->i16 : ctx->i32;
+ unsigned num_channels = 1 << (MAX2(load_log_size, 2) - 2);
+ loads[i] =
+ ac_build_buffer_load_common(ctx, rsrc, vindex, voffset, tmp, num_channels, channel_type,
+ cache_policy, can_speculate, false, true);
+ if (load_log_size >= 2)
+ loads[i] = ac_to_integer(ctx, loads[i]);
+ }
+
+ if (log_recombine > 0) {
+ /* Recombine bytes if necessary (GFX6 only) */
+ LLVMTypeRef dst_type = log_recombine == 2 ? ctx->i32 : ctx->i16;
+
+ for (unsigned src = 0, dst = 0; src < load_num_channels; ++dst) {
+ LLVMValueRef accum = NULL;
+ for (unsigned i = 0; i < (1 << log_recombine); ++i, ++src) {
+ tmp = LLVMBuildZExt(ctx->builder, loads[src], dst_type, "");
+ if (i == 0) {
+ accum = tmp;
+ } else {
+ tmp = LLVMBuildShl(ctx->builder, tmp, LLVMConstInt(dst_type, 8 * i, false), "");
+ accum = LLVMBuildOr(ctx->builder, accum, tmp, "");
+ }
+ }
+ loads[dst] = accum;
+ }
+ } else if (log_recombine < 0) {
+ /* Split vectors of dwords */
+ if (load_log_size > 2) {
+ assert(load_num_channels == 1);
+ LLVMValueRef loaded = loads[0];
+ unsigned log_split = load_log_size - 2;
+ log_recombine += log_split;
+ load_num_channels = 1 << log_split;
+ load_log_size = 2;
+ for (unsigned i = 0; i < load_num_channels; ++i) {
+ tmp = LLVMConstInt(ctx->i32, i, false);
+ loads[i] = LLVMBuildExtractElement(ctx->builder, loaded, tmp, "");
+ }
+ }
+
+ /* Further split dwords and shorts if required */
+ if (log_recombine < 0) {
+ for (unsigned src = load_num_channels, dst = load_num_channels << -log_recombine; src > 0;
+ --src) {
+ unsigned dst_bits = 1 << (3 + load_log_size + log_recombine);
+ LLVMTypeRef dst_type = LLVMIntTypeInContext(ctx->context, dst_bits);
+ LLVMValueRef loaded = loads[src - 1];
+ LLVMTypeRef loaded_type = LLVMTypeOf(loaded);
+ for (unsigned i = 1 << -log_recombine; i > 0; --i, --dst) {
+ tmp = LLVMConstInt(loaded_type, dst_bits * (i - 1), false);
+ tmp = LLVMBuildLShr(ctx->builder, loaded, tmp, "");
+ loads[dst - 1] = LLVMBuildTrunc(ctx->builder, tmp, dst_type, "");
+ }
+ }
+ }
+ }
+
+ if (log_size == 3) {
+ if (format == AC_FETCH_FORMAT_FLOAT) {
+ for (unsigned i = 0; i < num_channels; ++i) {
+ tmp = ac_build_gather_values(ctx, &loads[2 * i], 2);
+ loads[i] = LLVMBuildBitCast(ctx->builder, tmp, ctx->f64, "");
+ }
+ } else if (format == AC_FETCH_FORMAT_FIXED) {
+ /* 10_11_11_FLOAT */
+ LLVMValueRef data = loads[0];
+ LLVMValueRef i32_2047 = LLVMConstInt(ctx->i32, 2047, false);
+ LLVMValueRef r = LLVMBuildAnd(ctx->builder, data, i32_2047, "");
+ tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 11, false), "");
+ LLVMValueRef g = LLVMBuildAnd(ctx->builder, tmp, i32_2047, "");
+ LLVMValueRef b = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 22, false), "");
+
+ loads[0] = ac_to_integer(ctx, ac_ufN_to_float(ctx, r, 5, 6));
+ loads[1] = ac_to_integer(ctx, ac_ufN_to_float(ctx, g, 5, 6));
+ loads[2] = ac_to_integer(ctx, ac_ufN_to_float(ctx, b, 5, 5));
+
+ num_channels = 3;
+ log_size = 2;
+ format = AC_FETCH_FORMAT_FLOAT;
+ } else {
+ /* 2_10_10_10 data formats */
+ LLVMValueRef data = loads[0];
+ LLVMTypeRef i10 = LLVMIntTypeInContext(ctx->context, 10);
+ LLVMTypeRef i2 = LLVMIntTypeInContext(ctx->context, 2);
+ loads[0] = LLVMBuildTrunc(ctx->builder, data, i10, "");
+ tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 10, false), "");
+ loads[1] = LLVMBuildTrunc(ctx->builder, tmp, i10, "");
+ tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 20, false), "");
+ loads[2] = LLVMBuildTrunc(ctx->builder, tmp, i10, "");
+ tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 30, false), "");
+ loads[3] = LLVMBuildTrunc(ctx->builder, tmp, i2, "");
+
+ num_channels = 4;
+ }
+ }
+
+ if (format == AC_FETCH_FORMAT_FLOAT) {
+ if (log_size != 2) {
+ for (unsigned chan = 0; chan < num_channels; ++chan) {
+ tmp = ac_to_float(ctx, loads[chan]);
+ if (log_size == 3)
+ tmp = LLVMBuildFPTrunc(ctx->builder, tmp, ctx->f32, "");
+ else if (log_size == 1)
+ tmp = LLVMBuildFPExt(ctx->builder, tmp, ctx->f32, "");
+ loads[chan] = ac_to_integer(ctx, tmp);
+ }
+ }
+ } else if (format == AC_FETCH_FORMAT_UINT) {
+ if (log_size != 2) {
+ for (unsigned chan = 0; chan < num_channels; ++chan)
+ loads[chan] = LLVMBuildZExt(ctx->builder, loads[chan], ctx->i32, "");
+ }
+ } else if (format == AC_FETCH_FORMAT_SINT) {
+ if (log_size != 2) {
+ for (unsigned chan = 0; chan < num_channels; ++chan)
+ loads[chan] = LLVMBuildSExt(ctx->builder, loads[chan], ctx->i32, "");
+ }
+ } else {
+ bool unsign = format == AC_FETCH_FORMAT_UNORM || format == AC_FETCH_FORMAT_USCALED ||
+ format == AC_FETCH_FORMAT_UINT;
+
+ for (unsigned chan = 0; chan < num_channels; ++chan) {
+ if (unsign) {
+ tmp = LLVMBuildUIToFP(ctx->builder, loads[chan], ctx->f32, "");
+ } else {
+ tmp = LLVMBuildSIToFP(ctx->builder, loads[chan], ctx->f32, "");
+ }
+
+ LLVMValueRef scale = NULL;
+ if (format == AC_FETCH_FORMAT_FIXED) {
+ assert(log_size == 2);
+ scale = LLVMConstReal(ctx->f32, 1.0 / 0x10000);
+ } else if (format == AC_FETCH_FORMAT_UNORM) {
+ unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(loads[chan]));
+ scale = LLVMConstReal(ctx->f32, 1.0 / (((uint64_t)1 << bits) - 1));
+ } else if (format == AC_FETCH_FORMAT_SNORM) {
+ unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(loads[chan]));
+ scale = LLVMConstReal(ctx->f32, 1.0 / (((uint64_t)1 << (bits - 1)) - 1));
+ }
+ if (scale)
+ tmp = LLVMBuildFMul(ctx->builder, tmp, scale, "");
+
+ if (format == AC_FETCH_FORMAT_SNORM) {
+ /* Clamp to [-1, 1] */
+ LLVMValueRef neg_one = LLVMConstReal(ctx->f32, -1.0);
+ LLVMValueRef clamp = LLVMBuildFCmp(ctx->builder, LLVMRealULT, tmp, neg_one, "");
+ tmp = LLVMBuildSelect(ctx->builder, clamp, neg_one, tmp, "");
+ }
+
+ loads[chan] = ac_to_integer(ctx, tmp);
+ }
+ }
+
+ while (num_channels < 4) {
+ if (format == AC_FETCH_FORMAT_UINT || format == AC_FETCH_FORMAT_SINT) {
+ loads[num_channels] = num_channels == 3 ? ctx->i32_1 : ctx->i32_0;
+ } else {
+ loads[num_channels] = ac_to_integer(ctx, num_channels == 3 ? ctx->f32_1 : ctx->f32_0);
+ }
+ num_channels++;
+ }
+
+ if (reverse) {
+ tmp = loads[0];
+ loads[0] = loads[2];
+ loads[2] = tmp;
+ }
+
+ return ac_build_gather_values(ctx, loads, 4);
+}
+
+static void ac_build_tbuffer_store(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef vdata, LLVMValueRef vindex, LLVMValueRef voffset,
+ LLVMValueRef soffset, LLVMValueRef immoffset,
+ unsigned num_channels, unsigned dfmt, unsigned nfmt,
+ unsigned cache_policy, bool structurized)
+{
+ voffset = LLVMBuildAdd(ctx->builder, voffset ? voffset : ctx->i32_0, immoffset, "");
+
+ LLVMValueRef args[7];
+ int idx = 0;
+ args[idx++] = vdata;
+ args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, "");
+ if (structurized)
+ args[idx++] = vindex ? vindex : ctx->i32_0;
+ args[idx++] = voffset ? voffset : ctx->i32_0;
+ args[idx++] = soffset ? soffset : ctx->i32_0;
+ args[idx++] = LLVMConstInt(ctx->i32, ac_get_tbuffer_format(ctx->chip_class, dfmt, nfmt), 0);
+ args[idx++] = LLVMConstInt(ctx->i32, cache_policy, 0);
+ unsigned func =
+ !ac_has_vec3_support(ctx->chip_class, true) && num_channels == 3 ? 4 : num_channels;
+ const char *indexing_kind = structurized ? "struct" : "raw";
+ char name[256], type_name[8];
+
+ LLVMTypeRef type = func > 1 ? LLVMVectorType(ctx->i32, func) : ctx->i32;
+ ac_build_type_name_for_intr(type, type_name, sizeof(type_name));
+
+ snprintf(name, sizeof(name), "llvm.amdgcn.%s.tbuffer.store.%s", indexing_kind, type_name);
+
+ ac_build_intrinsic(ctx, name, ctx->voidt, args, idx, AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY);
+}
+
+void ac_build_struct_tbuffer_store(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef vdata, LLVMValueRef vindex, LLVMValueRef voffset,
+ LLVMValueRef soffset, LLVMValueRef immoffset,
+ unsigned num_channels, unsigned dfmt, unsigned nfmt,
+ unsigned cache_policy)
+{
+ ac_build_tbuffer_store(ctx, rsrc, vdata, vindex, voffset, soffset, immoffset, num_channels, dfmt,
+ nfmt, cache_policy, true);
+}
+
+void ac_build_raw_tbuffer_store(struct ac_llvm_context *ctx, LLVMValueRef rsrc, LLVMValueRef vdata,
+ LLVMValueRef voffset, LLVMValueRef soffset, LLVMValueRef immoffset,
+ unsigned num_channels, unsigned dfmt, unsigned nfmt,
+ unsigned cache_policy)
+{
+ ac_build_tbuffer_store(ctx, rsrc, vdata, NULL, voffset, soffset, immoffset, num_channels, dfmt,
+ nfmt, cache_policy, false);
+}
+
+void ac_build_tbuffer_store_short(struct ac_llvm_context *ctx, LLVMValueRef rsrc,
+ LLVMValueRef vdata, LLVMValueRef voffset, LLVMValueRef soffset,
+ unsigned cache_policy)
+{
+ vdata = LLVMBuildBitCast(ctx->builder, vdata, ctx->i16, "");
+
+ if (LLVM_VERSION_MAJOR >= 9) {
+ /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */
+ ac_build_buffer_store_common(ctx, rsrc, vdata, NULL, voffset, soffset, cache_policy, false,
+ false);
+ } else {
+ unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_16;
+ unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
+
+ vdata = LLVMBuildZExt(ctx->builder, vdata, ctx->i32, "");
+
+ ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, ctx->i32_0, 1, dfmt, nfmt,
+ cache_policy);
+ }
+}
+
+void ac_build_tbuffer_store_byte(struct ac_llvm_context *ctx, LLVMValueRef rsrc, LLVMValueRef vdata,
+ LLVMValueRef voffset, LLVMValueRef soffset, unsigned cache_policy)
+{
+ vdata = LLVMBuildBitCast(ctx->builder, vdata, ctx->i8, "");
+
+ if (LLVM_VERSION_MAJOR >= 9) {
+ /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */
+ ac_build_buffer_store_common(ctx, rsrc, vdata, NULL, voffset, soffset, cache_policy, false,
+ false);
+ } else {
+ unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_8;
+ unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT;
+
+ vdata = LLVMBuildZExt(ctx->builder, vdata, ctx->i32, "");
+
+ ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, ctx->i32_0, 1, dfmt, nfmt,
+ cache_policy);
+ }
}
/**
* Set range metadata on an instruction. This can only be used on load and
* \p lo is the minimum value inclusive.
* \p hi is the maximum value exclusive.
*/
-static void set_range_metadata(struct ac_llvm_context *ctx,
- LLVMValueRef value, unsigned lo, unsigned hi)
+static void set_range_metadata(struct ac_llvm_context *ctx, LLVMValueRef value, unsigned lo,
+ unsigned hi)
{
- LLVMValueRef range_md, md_args[2];
- LLVMTypeRef type = LLVMTypeOf(value);
- LLVMContextRef context = LLVMGetTypeContext(type);
+ LLVMValueRef range_md, md_args[2];
+ LLVMTypeRef type = LLVMTypeOf(value);
+ LLVMContextRef context = LLVMGetTypeContext(type);
- md_args[0] = LLVMConstInt(type, lo, false);
- md_args[1] = LLVMConstInt(type, hi, false);
- range_md = LLVMMDNodeInContext(context, md_args, 2);
- LLVMSetMetadata(value, ctx->range_md_kind, range_md);
+ md_args[0] = LLVMConstInt(type, lo, false);
+ md_args[1] = LLVMConstInt(type, hi, false);
+ range_md = LLVMMDNodeInContext(context, md_args, 2);
+ LLVMSetMetadata(value, ctx->range_md_kind, range_md);
}
-LLVMValueRef
-ac_get_thread_id(struct ac_llvm_context *ctx)
+LLVMValueRef ac_get_thread_id(struct ac_llvm_context *ctx)
{
- LLVMValueRef tid;
+ LLVMValueRef tid;
- LLVMValueRef tid_args[2];
- tid_args[0] = LLVMConstInt(ctx->i32, 0xffffffff, false);
- tid_args[1] = ctx->i32_0;
- tid_args[1] = ac_build_intrinsic(ctx,
- "llvm.amdgcn.mbcnt.lo", ctx->i32,
- tid_args, 2, AC_FUNC_ATTR_READNONE);
+ LLVMValueRef tid_args[2];
+ tid_args[0] = LLVMConstInt(ctx->i32, 0xffffffff, false);
+ tid_args[1] = ctx->i32_0;
+ tid_args[1] =
+ ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.lo", ctx->i32, tid_args, 2, AC_FUNC_ATTR_READNONE);
- if (ctx->wave_size == 32) {
- tid = tid_args[1];
- } else {
- tid = ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.hi",
- ctx->i32, tid_args,
- 2, AC_FUNC_ATTR_READNONE);
- }
- set_range_metadata(ctx, tid, 0, ctx->wave_size);
- return tid;
+ if (ctx->wave_size == 32) {
+ tid = tid_args[1];
+ } else {
+ tid = ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.hi", ctx->i32, tid_args, 2,
+ AC_FUNC_ATTR_READNONE);
+ }
+ set_range_metadata(ctx, tid, 0, ctx->wave_size);
+ return tid;
}
/*
* Adding 1 yields the TID of the pixel to the right of the left pixel, and
* adding 2 yields the TID of the pixel below the top pixel.
*/
-LLVMValueRef
-ac_build_ddxy(struct ac_llvm_context *ctx,
- uint32_t mask,
- int idx,
- LLVMValueRef val)
-{
- unsigned tl_lanes[4], trbl_lanes[4];
- char name[32], type[8];
- LLVMValueRef tl, trbl;
- LLVMTypeRef result_type;
- LLVMValueRef result;
-
- result_type = ac_to_float_type(ctx, LLVMTypeOf(val));
-
- if (result_type == ctx->f16)
- val = LLVMBuildZExt(ctx->builder, val, ctx->i32, "");
-
- for (unsigned i = 0; i < 4; ++i) {
- tl_lanes[i] = i & mask;
- trbl_lanes[i] = (i & mask) + idx;
- }
-
- tl = ac_build_quad_swizzle(ctx, val,
- tl_lanes[0], tl_lanes[1],
- tl_lanes[2], tl_lanes[3]);
- trbl = ac_build_quad_swizzle(ctx, val,
- trbl_lanes[0], trbl_lanes[1],
- trbl_lanes[2], trbl_lanes[3]);
-
- if (result_type == ctx->f16) {
- tl = LLVMBuildTrunc(ctx->builder, tl, ctx->i16, "");
- trbl = LLVMBuildTrunc(ctx->builder, trbl, ctx->i16, "");
- }
-
- tl = LLVMBuildBitCast(ctx->builder, tl, result_type, "");
- trbl = LLVMBuildBitCast(ctx->builder, trbl, result_type, "");
- result = LLVMBuildFSub(ctx->builder, trbl, tl, "");
-
- ac_build_type_name_for_intr(result_type, type, sizeof(type));
- snprintf(name, sizeof(name), "llvm.amdgcn.wqm.%s", type);
-
- return ac_build_intrinsic(ctx, name, result_type, &result, 1, 0);
-}
-
-void
-ac_build_sendmsg(struct ac_llvm_context *ctx,
- uint32_t msg,
- LLVMValueRef wave_id)
-{
- LLVMValueRef args[2];
- args[0] = LLVMConstInt(ctx->i32, msg, false);
- args[1] = wave_id;
- ac_build_intrinsic(ctx, "llvm.amdgcn.s.sendmsg", ctx->voidt, args, 2, 0);
-}
-
-LLVMValueRef
-ac_build_imsb(struct ac_llvm_context *ctx,
- LLVMValueRef arg,
- LLVMTypeRef dst_type)
-{
- LLVMValueRef msb = ac_build_intrinsic(ctx, "llvm.amdgcn.sffbh.i32",
- dst_type, &arg, 1,
- AC_FUNC_ATTR_READNONE);
-
- /* The HW returns the last bit index from MSB, but NIR/TGSI wants
- * the index from LSB. Invert it by doing "31 - msb". */
- msb = LLVMBuildSub(ctx->builder, LLVMConstInt(ctx->i32, 31, false),
- msb, "");
-
- LLVMValueRef all_ones = LLVMConstInt(ctx->i32, -1, true);
- LLVMValueRef cond = LLVMBuildOr(ctx->builder,
- LLVMBuildICmp(ctx->builder, LLVMIntEQ,
- arg, ctx->i32_0, ""),
- LLVMBuildICmp(ctx->builder, LLVMIntEQ,
- arg, all_ones, ""), "");
-
- return LLVMBuildSelect(ctx->builder, cond, all_ones, msb, "");
-}
-
-LLVMValueRef
-ac_build_umsb(struct ac_llvm_context *ctx,
- LLVMValueRef arg,
- LLVMTypeRef dst_type)
-{
- const char *intrin_name;
- LLVMTypeRef type;
- LLVMValueRef highest_bit;
- LLVMValueRef zero;
- unsigned bitsize;
-
- bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(arg));
- switch (bitsize) {
- case 64:
- intrin_name = "llvm.ctlz.i64";
- type = ctx->i64;
- highest_bit = LLVMConstInt(ctx->i64, 63, false);
- zero = ctx->i64_0;
- break;
- case 32:
- intrin_name = "llvm.ctlz.i32";
- type = ctx->i32;
- highest_bit = LLVMConstInt(ctx->i32, 31, false);
- zero = ctx->i32_0;
- break;
- case 16:
- intrin_name = "llvm.ctlz.i16";
- type = ctx->i16;
- highest_bit = LLVMConstInt(ctx->i16, 15, false);
- zero = ctx->i16_0;
- break;
- case 8:
- intrin_name = "llvm.ctlz.i8";
- type = ctx->i8;
- highest_bit = LLVMConstInt(ctx->i8, 7, false);
- zero = ctx->i8_0;
- break;
- default:
- unreachable(!"invalid bitsize");
- break;
- }
+LLVMValueRef ac_build_ddxy(struct ac_llvm_context *ctx, uint32_t mask, int idx, LLVMValueRef val)
+{
+ unsigned tl_lanes[4], trbl_lanes[4];
+ char name[32], type[8];
+ LLVMValueRef tl, trbl;
+ LLVMTypeRef result_type;
+ LLVMValueRef result;
+
+ result_type = ac_to_float_type(ctx, LLVMTypeOf(val));
+
+ if (result_type == ctx->f16)
+ val = LLVMBuildZExt(ctx->builder, val, ctx->i32, "");
+ else if (result_type == ctx->v2f16)
+ val = LLVMBuildBitCast(ctx->builder, val, ctx->i32, "");
+
+ for (unsigned i = 0; i < 4; ++i) {
+ tl_lanes[i] = i & mask;
+ trbl_lanes[i] = (i & mask) + idx;
+ }
+
+ tl = ac_build_quad_swizzle(ctx, val, tl_lanes[0], tl_lanes[1], tl_lanes[2], tl_lanes[3]);
+ trbl =
+ ac_build_quad_swizzle(ctx, val, trbl_lanes[0], trbl_lanes[1], trbl_lanes[2], trbl_lanes[3]);
+
+ if (result_type == ctx->f16) {
+ tl = LLVMBuildTrunc(ctx->builder, tl, ctx->i16, "");
+ trbl = LLVMBuildTrunc(ctx->builder, trbl, ctx->i16, "");
+ }
+
+ tl = LLVMBuildBitCast(ctx->builder, tl, result_type, "");
+ trbl = LLVMBuildBitCast(ctx->builder, trbl, result_type, "");
+ result = LLVMBuildFSub(ctx->builder, trbl, tl, "");
+
+ ac_build_type_name_for_intr(result_type, type, sizeof(type));
+ snprintf(name, sizeof(name), "llvm.amdgcn.wqm.%s", type);
+
+ return ac_build_intrinsic(ctx, name, result_type, &result, 1, 0);
+}
+
+void ac_build_sendmsg(struct ac_llvm_context *ctx, uint32_t msg, LLVMValueRef wave_id)
+{
+ LLVMValueRef args[2];
+ args[0] = LLVMConstInt(ctx->i32, msg, false);
+ args[1] = wave_id;
+ ac_build_intrinsic(ctx, "llvm.amdgcn.s.sendmsg", ctx->voidt, args, 2, 0);
+}
+
+LLVMValueRef ac_build_imsb(struct ac_llvm_context *ctx, LLVMValueRef arg, LLVMTypeRef dst_type)
+{
+ LLVMValueRef msb =
+ ac_build_intrinsic(ctx, "llvm.amdgcn.sffbh.i32", dst_type, &arg, 1, AC_FUNC_ATTR_READNONE);
+
+ /* The HW returns the last bit index from MSB, but NIR/TGSI wants
+ * the index from LSB. Invert it by doing "31 - msb". */
+ msb = LLVMBuildSub(ctx->builder, LLVMConstInt(ctx->i32, 31, false), msb, "");
- LLVMValueRef params[2] = {
- arg,
- ctx->i1true,
- };
+ LLVMValueRef all_ones = LLVMConstInt(ctx->i32, -1, true);
+ LLVMValueRef cond =
+ LLVMBuildOr(ctx->builder, LLVMBuildICmp(ctx->builder, LLVMIntEQ, arg, ctx->i32_0, ""),
+ LLVMBuildICmp(ctx->builder, LLVMIntEQ, arg, all_ones, ""), "");
- LLVMValueRef msb = ac_build_intrinsic(ctx, intrin_name, type,
- params, 2,
- AC_FUNC_ATTR_READNONE);
+ return LLVMBuildSelect(ctx->builder, cond, all_ones, msb, "");
+}
+
+LLVMValueRef ac_build_umsb(struct ac_llvm_context *ctx, LLVMValueRef arg, LLVMTypeRef dst_type)
+{
+ const char *intrin_name;
+ LLVMTypeRef type;
+ LLVMValueRef highest_bit;
+ LLVMValueRef zero;
+ unsigned bitsize;
+
+ bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(arg));
+ switch (bitsize) {
+ case 64:
+ intrin_name = "llvm.ctlz.i64";
+ type = ctx->i64;
+ highest_bit = LLVMConstInt(ctx->i64, 63, false);
+ zero = ctx->i64_0;
+ break;
+ case 32:
+ intrin_name = "llvm.ctlz.i32";
+ type = ctx->i32;
+ highest_bit = LLVMConstInt(ctx->i32, 31, false);
+ zero = ctx->i32_0;
+ break;
+ case 16:
+ intrin_name = "llvm.ctlz.i16";
+ type = ctx->i16;
+ highest_bit = LLVMConstInt(ctx->i16, 15, false);
+ zero = ctx->i16_0;
+ break;
+ case 8:
+ intrin_name = "llvm.ctlz.i8";
+ type = ctx->i8;
+ highest_bit = LLVMConstInt(ctx->i8, 7, false);
+ zero = ctx->i8_0;
+ break;
+ default:
+ unreachable(!"invalid bitsize");
+ break;
+ }
+
+ LLVMValueRef params[2] = {
+ arg,
+ ctx->i1true,
+ };
+
+ LLVMValueRef msb = ac_build_intrinsic(ctx, intrin_name, type, params, 2, AC_FUNC_ATTR_READNONE);
+
+ /* The HW returns the last bit index from MSB, but TGSI/NIR wants
+ * the index from LSB. Invert it by doing "31 - msb". */
+ msb = LLVMBuildSub(ctx->builder, highest_bit, msb, "");
+
+ if (bitsize == 64) {
+ msb = LLVMBuildTrunc(ctx->builder, msb, ctx->i32, "");
+ } else if (bitsize < 32) {
+ msb = LLVMBuildSExt(ctx->builder, msb, ctx->i32, "");
+ }
- /* The HW returns the last bit index from MSB, but TGSI/NIR wants
- * the index from LSB. Invert it by doing "31 - msb". */
- msb = LLVMBuildSub(ctx->builder, highest_bit, msb, "");
+ /* check for zero */
+ return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder, LLVMIntEQ, arg, zero, ""),
+ LLVMConstInt(ctx->i32, -1, true), msb, "");
+}
+
+LLVMValueRef ac_build_fmin(struct ac_llvm_context *ctx, LLVMValueRef a, LLVMValueRef b)
+{
+ char name[64], type[64];
+
+ ac_build_type_name_for_intr(LLVMTypeOf(a), type, sizeof(type));
+ snprintf(name, sizeof(name), "llvm.minnum.%s", type);
+ LLVMValueRef args[2] = {a, b};
+ return ac_build_intrinsic(ctx, name, LLVMTypeOf(a), args, 2, AC_FUNC_ATTR_READNONE);
+}
+
+LLVMValueRef ac_build_fmax(struct ac_llvm_context *ctx, LLVMValueRef a, LLVMValueRef b)
+{
+ char name[64], type[64];
- if (bitsize == 64) {
- msb = LLVMBuildTrunc(ctx->builder, msb, ctx->i32, "");
- } else if (bitsize < 32) {
- msb = LLVMBuildSExt(ctx->builder, msb, ctx->i32, "");
- }
+ ac_build_type_name_for_intr(LLVMTypeOf(a), type, sizeof(type));
+ snprintf(name, sizeof(name), "llvm.maxnum.%s", type);
+ LLVMValueRef args[2] = {a, b};
+ return ac_build_intrinsic(ctx, name, LLVMTypeOf(a), args, 2, AC_FUNC_ATTR_READNONE);
+}
- /* check for zero */
- return LLVMBuildSelect(ctx->builder,
- LLVMBuildICmp(ctx->builder, LLVMIntEQ, arg, zero, ""),
- LLVMConstInt(ctx->i32, -1, true), msb, "");
-}
-
-LLVMValueRef ac_build_fmin(struct ac_llvm_context *ctx, LLVMValueRef a,
- LLVMValueRef b)
+LLVMValueRef ac_build_imin(struct ac_llvm_context *ctx, LLVMValueRef a, LLVMValueRef b)
{
- char name[64];
- snprintf(name, sizeof(name), "llvm.minnum.f%d", ac_get_elem_bits(ctx, LLVMTypeOf(a)));
- LLVMValueRef args[2] = {a, b};
- return ac_build_intrinsic(ctx, name, LLVMTypeOf(a), args, 2,
- AC_FUNC_ATTR_READNONE);
-}
-
-LLVMValueRef ac_build_fmax(struct ac_llvm_context *ctx, LLVMValueRef a,
- LLVMValueRef b)
-{
- char name[64];
- snprintf(name, sizeof(name), "llvm.maxnum.f%d", ac_get_elem_bits(ctx, LLVMTypeOf(a)));
- LLVMValueRef args[2] = {a, b};
- return ac_build_intrinsic(ctx, name, LLVMTypeOf(a), args, 2,
- AC_FUNC_ATTR_READNONE);
-}
-
-LLVMValueRef ac_build_imin(struct ac_llvm_context *ctx, LLVMValueRef a,
- LLVMValueRef b)
+ LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntSLE, a, b, "");
+ return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
+}
+
+LLVMValueRef ac_build_imax(struct ac_llvm_context *ctx, LLVMValueRef a, LLVMValueRef b)
{
- LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntSLE, a, b, "");
- return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
+ LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, a, b, "");
+ return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
}
-LLVMValueRef ac_build_imax(struct ac_llvm_context *ctx, LLVMValueRef a,
- LLVMValueRef b)
+LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a, LLVMValueRef b)
{
- LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, a, b, "");
- return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
-}
-
-LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a,
- LLVMValueRef b)
-{
- LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntULE, a, b, "");
- return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
-}
-
-LLVMValueRef ac_build_umax(struct ac_llvm_context *ctx, LLVMValueRef a,
- LLVMValueRef b)
+ LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntULE, a, b, "");
+ return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
+}
+
+LLVMValueRef ac_build_umax(struct ac_llvm_context *ctx, LLVMValueRef a, LLVMValueRef b)
{
- LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, a, b, "");
- return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
+ LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, a, b, "");
+ return LLVMBuildSelect(ctx->builder, cmp, a, b, "");
}
LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value)
{
- LLVMTypeRef t = LLVMTypeOf(value);
- return ac_build_fmin(ctx, ac_build_fmax(ctx, value, LLVMConstReal(t, 0.0)),
- LLVMConstReal(t, 1.0));
+ LLVMTypeRef t = LLVMTypeOf(value);
+ return ac_build_fmin(ctx, ac_build_fmax(ctx, value, LLVMConstReal(t, 0.0)),
+ LLVMConstReal(t, 1.0));
}
void ac_build_export(struct ac_llvm_context *ctx, struct ac_export_args *a)
{
- LLVMValueRef args[9];
-
- args[0] = LLVMConstInt(ctx->i32, a->target, 0);
- args[1] = LLVMConstInt(ctx->i32, a->enabled_channels, 0);
+ LLVMValueRef args[9];
- if (a->compr) {
- LLVMTypeRef i16 = LLVMInt16TypeInContext(ctx->context);
- LLVMTypeRef v2i16 = LLVMVectorType(i16, 2);
+ args[0] = LLVMConstInt(ctx->i32, a->target, 0);
+ args[1] = LLVMConstInt(ctx->i32, a->enabled_channels, 0);
- args[2] = LLVMBuildBitCast(ctx->builder, a->out[0],
- v2i16, "");
- args[3] = LLVMBuildBitCast(ctx->builder, a->out[1],
- v2i16, "");
- args[4] = LLVMConstInt(ctx->i1, a->done, 0);
- args[5] = LLVMConstInt(ctx->i1, a->valid_mask, 0);
+ if (a->compr) {
+ args[2] = LLVMBuildBitCast(ctx->builder, a->out[0], ctx->v2i16, "");
+ args[3] = LLVMBuildBitCast(ctx->builder, a->out[1], ctx->v2i16, "");
+ args[4] = LLVMConstInt(ctx->i1, a->done, 0);
+ args[5] = LLVMConstInt(ctx->i1, a->valid_mask, 0);
- ac_build_intrinsic(ctx, "llvm.amdgcn.exp.compr.v2i16",
- ctx->voidt, args, 6, 0);
- } else {
- args[2] = a->out[0];
- args[3] = a->out[1];
- args[4] = a->out[2];
- args[5] = a->out[3];
- args[6] = LLVMConstInt(ctx->i1, a->done, 0);
- args[7] = LLVMConstInt(ctx->i1, a->valid_mask, 0);
+ ac_build_intrinsic(ctx, "llvm.amdgcn.exp.compr.v2i16", ctx->voidt, args, 6, 0);
+ } else {
+ args[2] = a->out[0];
+ args[3] = a->out[1];
+ args[4] = a->out[2];
+ args[5] = a->out[3];
+ args[6] = LLVMConstInt(ctx->i1, a->done, 0);
+ args[7] = LLVMConstInt(ctx->i1, a->valid_mask, 0);
- ac_build_intrinsic(ctx, "llvm.amdgcn.exp.f32",
- ctx->voidt, args, 8, 0);
- }
+ ac_build_intrinsic(ctx, "llvm.amdgcn.exp.f32", ctx->voidt, args, 8, 0);
+ }
}
void ac_build_export_null(struct ac_llvm_context *ctx)
{
- struct ac_export_args args;
+ struct ac_export_args args;
- args.enabled_channels = 0x0; /* enabled channels */
- args.valid_mask = 1; /* whether the EXEC mask is valid */
- args.done = 1; /* DONE bit */
- args.target = V_008DFC_SQ_EXP_NULL;
- args.compr = 0; /* COMPR flag (0 = 32-bit export) */
- args.out[0] = LLVMGetUndef(ctx->f32); /* R */
- args.out[1] = LLVMGetUndef(ctx->f32); /* G */
- args.out[2] = LLVMGetUndef(ctx->f32); /* B */
- args.out[3] = LLVMGetUndef(ctx->f32); /* A */
+ args.enabled_channels = 0x0; /* enabled channels */
+ args.valid_mask = 1; /* whether the EXEC mask is valid */
+ args.done = 1; /* DONE bit */
+ args.target = V_008DFC_SQ_EXP_NULL;
+ args.compr = 0; /* COMPR flag (0 = 32-bit export) */
+ args.out[0] = LLVMGetUndef(ctx->f32); /* R */
+ args.out[1] = LLVMGetUndef(ctx->f32); /* G */
+ args.out[2] = LLVMGetUndef(ctx->f32); /* B */
+ args.out[3] = LLVMGetUndef(ctx->f32); /* A */
- ac_build_export(ctx, &args);
+ ac_build_export(ctx, &args);
}
static unsigned ac_num_coords(enum ac_image_dim dim)
{
- switch (dim) {
- case ac_image_1d:
- return 1;
- case ac_image_2d:
- case ac_image_1darray:
- return 2;
- case ac_image_3d:
- case ac_image_cube:
- case ac_image_2darray:
- case ac_image_2dmsaa:
- return 3;
- case ac_image_2darraymsaa:
- return 4;
- default:
- unreachable("ac_num_coords: bad dim");
- }
+ switch (dim) {
+ case ac_image_1d:
+ return 1;
+ case ac_image_2d:
+ case ac_image_1darray:
+ return 2;
+ case ac_image_3d:
+ case ac_image_cube:
+ case ac_image_2darray:
+ case ac_image_2dmsaa:
+ return 3;
+ case ac_image_2darraymsaa:
+ return 4;
+ default:
+ unreachable("ac_num_coords: bad dim");
+ }
}
static unsigned ac_num_derivs(enum ac_image_dim dim)
{
- switch (dim) {
- case ac_image_1d:
- case ac_image_1darray:
- return 2;
- case ac_image_2d:
- case ac_image_2darray:
- case ac_image_cube:
- return 4;
- case ac_image_3d:
- return 6;
- case ac_image_2dmsaa:
- case ac_image_2darraymsaa:
- default:
- unreachable("derivatives not supported");
- }
+ switch (dim) {
+ case ac_image_1d:
+ case ac_image_1darray:
+ return 2;
+ case ac_image_2d:
+ case ac_image_2darray:
+ case ac_image_cube:
+ return 4;
+ case ac_image_3d:
+ return 6;
+ case ac_image_2dmsaa:
+ case ac_image_2darraymsaa:
+ default:
+ unreachable("derivatives not supported");
+ }
}
static const char *get_atomic_name(enum ac_atomic_op op)
{
- switch (op) {
- case ac_atomic_swap: return "swap";
- case ac_atomic_add: return "add";
- case ac_atomic_sub: return "sub";
- case ac_atomic_smin: return "smin";
- case ac_atomic_umin: return "umin";
- case ac_atomic_smax: return "smax";
- case ac_atomic_umax: return "umax";
- case ac_atomic_and: return "and";
- case ac_atomic_or: return "or";
- case ac_atomic_xor: return "xor";
- case ac_atomic_inc_wrap: return "inc";
- case ac_atomic_dec_wrap: return "dec";
- }
- unreachable("bad atomic op");
-}
-
-LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx,
- struct ac_image_args *a)
-{
- const char *overload[3] = { "", "", "" };
- unsigned num_overloads = 0;
- LLVMValueRef args[18];
- unsigned num_args = 0;
- enum ac_image_dim dim = a->dim;
-
- assert(!a->lod || a->lod == ctx->i32_0 || a->lod == ctx->f32_0 ||
- !a->level_zero);
- assert((a->opcode != ac_image_get_resinfo && a->opcode != ac_image_load_mip &&
- a->opcode != ac_image_store_mip) ||
- a->lod);
- assert(a->opcode == ac_image_sample || a->opcode == ac_image_gather4 ||
- (!a->compare && !a->offset));
- assert((a->opcode == ac_image_sample || a->opcode == ac_image_gather4 ||
- a->opcode == ac_image_get_lod) ||
- !a->bias);
- assert((a->bias ? 1 : 0) +
- (a->lod ? 1 : 0) +
- (a->level_zero ? 1 : 0) +
- (a->derivs[0] ? 1 : 0) <= 1);
-
- if (a->opcode == ac_image_get_lod) {
- switch (dim) {
- case ac_image_1darray:
- dim = ac_image_1d;
- break;
- case ac_image_2darray:
- case ac_image_cube:
- dim = ac_image_2d;
- break;
- default:
- break;
- }
- }
-
- bool sample = a->opcode == ac_image_sample ||
- a->opcode == ac_image_gather4 ||
- a->opcode == ac_image_get_lod;
- bool atomic = a->opcode == ac_image_atomic ||
- a->opcode == ac_image_atomic_cmpswap;
- bool load = a->opcode == ac_image_sample ||
- a->opcode == ac_image_gather4 ||
- a->opcode == ac_image_load ||
- a->opcode == ac_image_load_mip;
- LLVMTypeRef coord_type = sample ? ctx->f32 : ctx->i32;
-
- if (atomic || a->opcode == ac_image_store || a->opcode == ac_image_store_mip) {
- args[num_args++] = a->data[0];
- if (a->opcode == ac_image_atomic_cmpswap)
- args[num_args++] = a->data[1];
- }
-
- if (!atomic)
- args[num_args++] = LLVMConstInt(ctx->i32, a->dmask, false);
-
- if (a->offset)
- args[num_args++] = ac_to_integer(ctx, a->offset);
- if (a->bias) {
- args[num_args++] = ac_to_float(ctx, a->bias);
- overload[num_overloads++] = ".f32";
- }
- if (a->compare)
- args[num_args++] = ac_to_float(ctx, a->compare);
- if (a->derivs[0]) {
- unsigned count = ac_num_derivs(dim);
- for (unsigned i = 0; i < count; ++i)
- args[num_args++] = ac_to_float(ctx, a->derivs[i]);
- overload[num_overloads++] = ".f32";
- }
- unsigned num_coords =
- a->opcode != ac_image_get_resinfo ? ac_num_coords(dim) : 0;
- for (unsigned i = 0; i < num_coords; ++i)
- args[num_args++] = LLVMBuildBitCast(ctx->builder, a->coords[i], coord_type, "");
- if (a->lod)
- args[num_args++] = LLVMBuildBitCast(ctx->builder, a->lod, coord_type, "");
- overload[num_overloads++] = sample ? ".f32" : ".i32";
-
- args[num_args++] = a->resource;
- if (sample) {
- args[num_args++] = a->sampler;
- args[num_args++] = LLVMConstInt(ctx->i1, a->unorm, false);
- }
-
- args[num_args++] = ctx->i32_0; /* texfailctrl */
- args[num_args++] = LLVMConstInt(ctx->i32,
- load ? get_load_cache_policy(ctx, a->cache_policy) :
- a->cache_policy, false);
-
- const char *name;
- const char *atomic_subop = "";
- switch (a->opcode) {
- case ac_image_sample: name = "sample"; break;
- case ac_image_gather4: name = "gather4"; break;
- case ac_image_load: name = "load"; break;
- case ac_image_load_mip: name = "load.mip"; break;
- case ac_image_store: name = "store"; break;
- case ac_image_store_mip: name = "store.mip"; break;
- case ac_image_atomic:
- name = "atomic.";
- atomic_subop = get_atomic_name(a->atomic);
- break;
- case ac_image_atomic_cmpswap:
- name = "atomic.";
- atomic_subop = "cmpswap";
- break;
- case ac_image_get_lod: name = "getlod"; break;
- case ac_image_get_resinfo: name = "getresinfo"; break;
- default: unreachable("invalid image opcode");
- }
-
- const char *dimname;
- switch (dim) {
- case ac_image_1d: dimname = "1d"; break;
- case ac_image_2d: dimname = "2d"; break;
- case ac_image_3d: dimname = "3d"; break;
- case ac_image_cube: dimname = "cube"; break;
- case ac_image_1darray: dimname = "1darray"; break;
- case ac_image_2darray: dimname = "2darray"; break;
- case ac_image_2dmsaa: dimname = "2dmsaa"; break;
- case ac_image_2darraymsaa: dimname = "2darraymsaa"; break;
- default: unreachable("invalid dim");
- }
-
- bool lod_suffix =
- a->lod && (a->opcode == ac_image_sample || a->opcode == ac_image_gather4);
- char intr_name[96];
- snprintf(intr_name, sizeof(intr_name),
- "llvm.amdgcn.image.%s%s" /* base name */
- "%s%s%s" /* sample/gather modifiers */
- ".%s.%s%s%s%s", /* dimension and type overloads */
- name, atomic_subop,
- a->compare ? ".c" : "",
- a->bias ? ".b" :
- lod_suffix ? ".l" :
- a->derivs[0] ? ".d" :
- a->level_zero ? ".lz" : "",
- a->offset ? ".o" : "",
- dimname,
- atomic ? "i32" : "v4f32",
- overload[0], overload[1], overload[2]);
-
- LLVMTypeRef retty;
- if (atomic)
- retty = ctx->i32;
- else if (a->opcode == ac_image_store || a->opcode == ac_image_store_mip)
- retty = ctx->voidt;
- else
- retty = ctx->v4f32;
-
- LLVMValueRef result =
- ac_build_intrinsic(ctx, intr_name, retty, args, num_args,
- a->attributes);
- if (!sample && retty == ctx->v4f32) {
- result = LLVMBuildBitCast(ctx->builder, result,
- ctx->v4i32, "");
- }
- return result;
-}
-
-LLVMValueRef ac_build_image_get_sample_count(struct ac_llvm_context *ctx,
- LLVMValueRef rsrc)
-{
- LLVMValueRef samples;
-
- /* Read the samples from the descriptor directly.
- * Hardware doesn't have any instruction for this.
- */
- samples = LLVMBuildExtractElement(ctx->builder, rsrc,
- LLVMConstInt(ctx->i32, 3, 0), "");
- samples = LLVMBuildLShr(ctx->builder, samples,
- LLVMConstInt(ctx->i32, 16, 0), "");
- samples = LLVMBuildAnd(ctx->builder, samples,
- LLVMConstInt(ctx->i32, 0xf, 0), "");
- samples = LLVMBuildShl(ctx->builder, ctx->i32_1,
- samples, "");
- return samples;
-}
-
-LLVMValueRef ac_build_cvt_pkrtz_f16(struct ac_llvm_context *ctx,
- LLVMValueRef args[2])
-{
- LLVMTypeRef v2f16 =
- LLVMVectorType(LLVMHalfTypeInContext(ctx->context), 2);
-
- return ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pkrtz", v2f16,
- args, 2, AC_FUNC_ATTR_READNONE);
-}
-
-LLVMValueRef ac_build_cvt_pknorm_i16(struct ac_llvm_context *ctx,
- LLVMValueRef args[2])
-{
- LLVMValueRef res =
- ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pknorm.i16",
- ctx->v2i16, args, 2,
- AC_FUNC_ATTR_READNONE);
- return LLVMBuildBitCast(ctx->builder, res, ctx->i32, "");
-}
-
-LLVMValueRef ac_build_cvt_pknorm_u16(struct ac_llvm_context *ctx,
- LLVMValueRef args[2])
-{
- LLVMValueRef res =
- ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pknorm.u16",
- ctx->v2i16, args, 2,
- AC_FUNC_ATTR_READNONE);
- return LLVMBuildBitCast(ctx->builder, res, ctx->i32, "");
+ switch (op) {
+ case ac_atomic_swap:
+ return "swap";
+ case ac_atomic_add:
+ return "add";
+ case ac_atomic_sub:
+ return "sub";
+ case ac_atomic_smin:
+ return "smin";
+ case ac_atomic_umin:
+ return "umin";
+ case ac_atomic_smax:
+ return "smax";
+ case ac_atomic_umax:
+ return "umax";
+ case ac_atomic_and:
+ return "and";
+ case ac_atomic_or:
+ return "or";
+ case ac_atomic_xor:
+ return "xor";
+ case ac_atomic_inc_wrap:
+ return "inc";
+ case ac_atomic_dec_wrap:
+ return "dec";
+ }
+ unreachable("bad atomic op");
+}
+
+LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx, struct ac_image_args *a)
+{
+ const char *overload[3] = {"", "", ""};
+ unsigned num_overloads = 0;
+ LLVMValueRef args[18];
+ unsigned num_args = 0;
+ enum ac_image_dim dim = a->dim;
+
+ assert(!a->lod || a->lod == ctx->i32_0 || a->lod == ctx->f32_0 || !a->level_zero);
+ assert((a->opcode != ac_image_get_resinfo && a->opcode != ac_image_load_mip &&
+ a->opcode != ac_image_store_mip) ||
+ a->lod);
+ assert(a->opcode == ac_image_sample || a->opcode == ac_image_gather4 ||
+ (!a->compare && !a->offset));
+ assert((a->opcode == ac_image_sample || a->opcode == ac_image_gather4 ||
+ a->opcode == ac_image_get_lod) ||
+ !a->bias);
+ assert((a->bias ? 1 : 0) + (a->lod ? 1 : 0) + (a->level_zero ? 1 : 0) + (a->derivs[0] ? 1 : 0) <=
+ 1);
+ assert((a->min_lod ? 1 : 0) + (a->lod ? 1 : 0) + (a->level_zero ? 1 : 0) <= 1);
+ assert(!a->d16 || (ctx->chip_class >= GFX8 && a->opcode != ac_image_atomic &&
+ a->opcode != ac_image_atomic_cmpswap && a->opcode != ac_image_get_lod &&
+ a->opcode != ac_image_get_resinfo));
+
+ if (a->opcode == ac_image_get_lod) {
+ switch (dim) {
+ case ac_image_1darray:
+ dim = ac_image_1d;
+ break;
+ case ac_image_2darray:
+ case ac_image_cube:
+ dim = ac_image_2d;
+ break;
+ default:
+ break;
+ }
+ }
+
+ bool sample = a->opcode == ac_image_sample || a->opcode == ac_image_gather4 ||
+ a->opcode == ac_image_get_lod;
+ bool atomic = a->opcode == ac_image_atomic || a->opcode == ac_image_atomic_cmpswap;
+ bool load = a->opcode == ac_image_sample || a->opcode == ac_image_gather4 ||
+ a->opcode == ac_image_load || a->opcode == ac_image_load_mip;
+ LLVMTypeRef coord_type = sample ? ctx->f32 : ctx->i32;
+
+ if (atomic || a->opcode == ac_image_store || a->opcode == ac_image_store_mip) {
+ args[num_args++] = a->data[0];
+ if (a->opcode == ac_image_atomic_cmpswap)
+ args[num_args++] = a->data[1];
+ }
+
+ if (!atomic)
+ args[num_args++] = LLVMConstInt(ctx->i32, a->dmask, false);
+
+ if (a->offset)
+ args[num_args++] = ac_to_integer(ctx, a->offset);
+ if (a->bias) {
+ args[num_args++] = ac_to_float(ctx, a->bias);
+ overload[num_overloads++] = ".f32";
+ }
+ if (a->compare)
+ args[num_args++] = ac_to_float(ctx, a->compare);
+ if (a->derivs[0]) {
+ unsigned count = ac_num_derivs(dim);
+ for (unsigned i = 0; i < count; ++i)
+ args[num_args++] = ac_to_float(ctx, a->derivs[i]);
+ overload[num_overloads++] = ".f32";
+ }
+ unsigned num_coords = a->opcode != ac_image_get_resinfo ? ac_num_coords(dim) : 0;
+ for (unsigned i = 0; i < num_coords; ++i)
+ args[num_args++] = LLVMBuildBitCast(ctx->builder, a->coords[i], coord_type, "");
+ if (a->lod)
+ args[num_args++] = LLVMBuildBitCast(ctx->builder, a->lod, coord_type, "");
+ if (a->min_lod)
+ args[num_args++] = LLVMBuildBitCast(ctx->builder, a->min_lod, coord_type, "");
+
+ overload[num_overloads++] = sample ? ".f32" : ".i32";
+
+ args[num_args++] = a->resource;
+ if (sample) {
+ args[num_args++] = a->sampler;
+ args[num_args++] = LLVMConstInt(ctx->i1, a->unorm, false);
+ }
+
+ args[num_args++] = ctx->i32_0; /* texfailctrl */
+ args[num_args++] = LLVMConstInt(
+ ctx->i32, load ? get_load_cache_policy(ctx, a->cache_policy) : a->cache_policy, false);
+
+ const char *name;
+ const char *atomic_subop = "";
+ switch (a->opcode) {
+ case ac_image_sample:
+ name = "sample";
+ break;
+ case ac_image_gather4:
+ name = "gather4";
+ break;
+ case ac_image_load:
+ name = "load";
+ break;
+ case ac_image_load_mip:
+ name = "load.mip";
+ break;
+ case ac_image_store:
+ name = "store";
+ break;
+ case ac_image_store_mip:
+ name = "store.mip";
+ break;
+ case ac_image_atomic:
+ name = "atomic.";
+ atomic_subop = get_atomic_name(a->atomic);
+ break;
+ case ac_image_atomic_cmpswap:
+ name = "atomic.";
+ atomic_subop = "cmpswap";
+ break;
+ case ac_image_get_lod:
+ name = "getlod";
+ break;
+ case ac_image_get_resinfo:
+ name = "getresinfo";
+ break;
+ default:
+ unreachable("invalid image opcode");
+ }
+
+ const char *dimname;
+ switch (dim) {
+ case ac_image_1d:
+ dimname = "1d";
+ break;
+ case ac_image_2d:
+ dimname = "2d";
+ break;
+ case ac_image_3d:
+ dimname = "3d";
+ break;
+ case ac_image_cube:
+ dimname = "cube";
+ break;
+ case ac_image_1darray:
+ dimname = "1darray";
+ break;
+ case ac_image_2darray:
+ dimname = "2darray";
+ break;
+ case ac_image_2dmsaa:
+ dimname = "2dmsaa";
+ break;
+ case ac_image_2darraymsaa:
+ dimname = "2darraymsaa";
+ break;
+ default:
+ unreachable("invalid dim");
+ }
+
+ bool lod_suffix = a->lod && (a->opcode == ac_image_sample || a->opcode == ac_image_gather4);
+ char intr_name[96];
+ snprintf(intr_name, sizeof(intr_name),
+ "llvm.amdgcn.image.%s%s" /* base name */
+ "%s%s%s%s" /* sample/gather modifiers */
+ ".%s.%s%s%s%s", /* dimension and type overloads */
+ name, atomic_subop, a->compare ? ".c" : "",
+ a->bias ? ".b" : lod_suffix ? ".l" : a->derivs[0] ? ".d" : a->level_zero ? ".lz" : "",
+ a->min_lod ? ".cl" : "", a->offset ? ".o" : "", dimname,
+ atomic ? "i32" : (a->d16 ? "v4f16" : "v4f32"), overload[0], overload[1], overload[2]);
+
+ LLVMTypeRef retty;
+ if (atomic)
+ retty = ctx->i32;
+ else if (a->opcode == ac_image_store || a->opcode == ac_image_store_mip)
+ retty = ctx->voidt;
+ else
+ retty = a->d16 ? ctx->v4f16 : ctx->v4f32;
+
+ LLVMValueRef result = ac_build_intrinsic(ctx, intr_name, retty, args, num_args, a->attributes);
+ if (!sample && !atomic && retty != ctx->voidt)
+ result = ac_to_integer(ctx, result);
+
+ return result;
+}
+
+LLVMValueRef ac_build_image_get_sample_count(struct ac_llvm_context *ctx, LLVMValueRef rsrc)
+{
+ LLVMValueRef samples;
+
+ /* Read the samples from the descriptor directly.
+ * Hardware doesn't have any instruction for this.
+ */
+ samples = LLVMBuildExtractElement(ctx->builder, rsrc, LLVMConstInt(ctx->i32, 3, 0), "");
+ samples = LLVMBuildLShr(ctx->builder, samples, LLVMConstInt(ctx->i32, 16, 0), "");
+ samples = LLVMBuildAnd(ctx->builder, samples, LLVMConstInt(ctx->i32, 0xf, 0), "");
+ samples = LLVMBuildShl(ctx->builder, ctx->i32_1, samples, "");
+ return samples;
+}
+
+LLVMValueRef ac_build_cvt_pkrtz_f16(struct ac_llvm_context *ctx, LLVMValueRef args[2])
+{
+ return ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pkrtz", ctx->v2f16, args, 2,
+ AC_FUNC_ATTR_READNONE);
+}
+
+LLVMValueRef ac_build_cvt_pknorm_i16(struct ac_llvm_context *ctx, LLVMValueRef args[2])
+{
+ LLVMValueRef res = ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pknorm.i16", ctx->v2i16, args, 2,
+ AC_FUNC_ATTR_READNONE);
+ return LLVMBuildBitCast(ctx->builder, res, ctx->i32, "");
+}
+
+LLVMValueRef ac_build_cvt_pknorm_u16(struct ac_llvm_context *ctx, LLVMValueRef args[2])
+{
+ LLVMValueRef res = ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pknorm.u16", ctx->v2i16, args, 2,
+ AC_FUNC_ATTR_READNONE);
+ return LLVMBuildBitCast(ctx->builder, res, ctx->i32, "");
}
/* The 8-bit and 10-bit clamping is for HW workarounds. */
-LLVMValueRef ac_build_cvt_pk_i16(struct ac_llvm_context *ctx,
- LLVMValueRef args[2], unsigned bits, bool hi)
-{
- assert(bits == 8 || bits == 10 || bits == 16);
-
- LLVMValueRef max_rgb = LLVMConstInt(ctx->i32,
- bits == 8 ? 127 : bits == 10 ? 511 : 32767, 0);
- LLVMValueRef min_rgb = LLVMConstInt(ctx->i32,
- bits == 8 ? -128 : bits == 10 ? -512 : -32768, 0);
- LLVMValueRef max_alpha =
- bits != 10 ? max_rgb : ctx->i32_1;
- LLVMValueRef min_alpha =
- bits != 10 ? min_rgb : LLVMConstInt(ctx->i32, -2, 0);
-
- /* Clamp. */
- if (bits != 16) {
- for (int i = 0; i < 2; i++) {
- bool alpha = hi && i == 1;
- args[i] = ac_build_imin(ctx, args[i],
- alpha ? max_alpha : max_rgb);
- args[i] = ac_build_imax(ctx, args[i],
- alpha ? min_alpha : min_rgb);
- }
- }
-
- LLVMValueRef res =
- ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pk.i16",
- ctx->v2i16, args, 2,
- AC_FUNC_ATTR_READNONE);
- return LLVMBuildBitCast(ctx->builder, res, ctx->i32, "");
+LLVMValueRef ac_build_cvt_pk_i16(struct ac_llvm_context *ctx, LLVMValueRef args[2], unsigned bits,
+ bool hi)
+{
+ assert(bits == 8 || bits == 10 || bits == 16);
+
+ LLVMValueRef max_rgb = LLVMConstInt(ctx->i32, bits == 8 ? 127 : bits == 10 ? 511 : 32767, 0);
+ LLVMValueRef min_rgb = LLVMConstInt(ctx->i32, bits == 8 ? -128 : bits == 10 ? -512 : -32768, 0);
+ LLVMValueRef max_alpha = bits != 10 ? max_rgb : ctx->i32_1;
+ LLVMValueRef min_alpha = bits != 10 ? min_rgb : LLVMConstInt(ctx->i32, -2, 0);
+
+ /* Clamp. */
+ if (bits != 16) {
+ for (int i = 0; i < 2; i++) {
+ bool alpha = hi && i == 1;
+ args[i] = ac_build_imin(ctx, args[i], alpha ? max_alpha : max_rgb);
+ args[i] = ac_build_imax(ctx, args[i], alpha ? min_alpha : min_rgb);
+ }
+ }
+
+ LLVMValueRef res =
+ ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pk.i16", ctx->v2i16, args, 2, AC_FUNC_ATTR_READNONE);
+ return LLVMBuildBitCast(ctx->builder, res, ctx->i32, "");
}
/* The 8-bit and 10-bit clamping is for HW workarounds. */
-LLVMValueRef ac_build_cvt_pk_u16(struct ac_llvm_context *ctx,
- LLVMValueRef args[2], unsigned bits, bool hi)
+LLVMValueRef ac_build_cvt_pk_u16(struct ac_llvm_context *ctx, LLVMValueRef args[2], unsigned bits,
+ bool hi)
{
- assert(bits == 8 || bits == 10 || bits == 16);
+ assert(bits == 8 || bits == 10 || bits == 16);
- LLVMValueRef max_rgb = LLVMConstInt(ctx->i32,
- bits == 8 ? 255 : bits == 10 ? 1023 : 65535, 0);
- LLVMValueRef max_alpha =
- bits != 10 ? max_rgb : LLVMConstInt(ctx->i32, 3, 0);
+ LLVMValueRef max_rgb = LLVMConstInt(ctx->i32, bits == 8 ? 255 : bits == 10 ? 1023 : 65535, 0);
+ LLVMValueRef max_alpha = bits != 10 ? max_rgb : LLVMConstInt(ctx->i32, 3, 0);
- /* Clamp. */
- if (bits != 16) {
- for (int i = 0; i < 2; i++) {
- bool alpha = hi && i == 1;
- args[i] = ac_build_umin(ctx, args[i],
- alpha ? max_alpha : max_rgb);
- }
- }
+ /* Clamp. */
+ if (bits != 16) {
+ for (int i = 0; i < 2; i++) {
+ bool alpha = hi && i == 1;
+ args[i] = ac_build_umin(ctx, args[i], alpha ? max_alpha : max_rgb);
+ }
+ }
- LLVMValueRef res =
- ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pk.u16",
- ctx->v2i16, args, 2,
- AC_FUNC_ATTR_READNONE);
- return LLVMBuildBitCast(ctx->builder, res, ctx->i32, "");
+ LLVMValueRef res =
+ ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pk.u16", ctx->v2i16, args, 2, AC_FUNC_ATTR_READNONE);
+ return LLVMBuildBitCast(ctx->builder, res, ctx->i32, "");
}
LLVMValueRef ac_build_wqm_vote(struct ac_llvm_context *ctx, LLVMValueRef i1)
{
- return ac_build_intrinsic(ctx, "llvm.amdgcn.wqm.vote", ctx->i1,
- &i1, 1, AC_FUNC_ATTR_READNONE);
+ return ac_build_intrinsic(ctx, "llvm.amdgcn.wqm.vote", ctx->i1, &i1, 1, AC_FUNC_ATTR_READNONE);
}
void ac_build_kill_if_false(struct ac_llvm_context *ctx, LLVMValueRef i1)
{
- ac_build_intrinsic(ctx, "llvm.amdgcn.kill", ctx->voidt,
- &i1, 1, 0);
+ ac_build_intrinsic(ctx, "llvm.amdgcn.kill", ctx->voidt, &i1, 1, 0);
}
-LLVMValueRef ac_build_bfe(struct ac_llvm_context *ctx, LLVMValueRef input,
- LLVMValueRef offset, LLVMValueRef width,
- bool is_signed)
+LLVMValueRef ac_build_bfe(struct ac_llvm_context *ctx, LLVMValueRef input, LLVMValueRef offset,
+ LLVMValueRef width, bool is_signed)
{
- LLVMValueRef args[] = {
- input,
- offset,
- width,
- };
-
- return ac_build_intrinsic(ctx, is_signed ? "llvm.amdgcn.sbfe.i32" :
- "llvm.amdgcn.ubfe.i32",
- ctx->i32, args, 3, AC_FUNC_ATTR_READNONE);
+ LLVMValueRef args[] = {
+ input,
+ offset,
+ width,
+ };
+ return ac_build_intrinsic(ctx, is_signed ? "llvm.amdgcn.sbfe.i32" : "llvm.amdgcn.ubfe.i32",
+ ctx->i32, args, 3, AC_FUNC_ATTR_READNONE);
}
-LLVMValueRef ac_build_imad(struct ac_llvm_context *ctx, LLVMValueRef s0,
- LLVMValueRef s1, LLVMValueRef s2)
+LLVMValueRef ac_build_imad(struct ac_llvm_context *ctx, LLVMValueRef s0, LLVMValueRef s1,
+ LLVMValueRef s2)
{
- return LLVMBuildAdd(ctx->builder,
- LLVMBuildMul(ctx->builder, s0, s1, ""), s2, "");
+ return LLVMBuildAdd(ctx->builder, LLVMBuildMul(ctx->builder, s0, s1, ""), s2, "");
}
-LLVMValueRef ac_build_fmad(struct ac_llvm_context *ctx, LLVMValueRef s0,
- LLVMValueRef s1, LLVMValueRef s2)
+LLVMValueRef ac_build_fmad(struct ac_llvm_context *ctx, LLVMValueRef s0, LLVMValueRef s1,
+ LLVMValueRef s2)
{
- /* FMA is better on GFX10, because it has FMA units instead of MUL-ADD units. */
- if (ctx->chip_class >= GFX10) {
- return ac_build_intrinsic(ctx, "llvm.fma.f32", ctx->f32,
- (LLVMValueRef []) {s0, s1, s2}, 3,
- AC_FUNC_ATTR_READNONE);
- }
+ /* FMA is better on GFX10, because it has FMA units instead of MUL-ADD units. */
+ if (ctx->chip_class >= GFX10) {
+ return ac_build_intrinsic(ctx, "llvm.fma.f32", ctx->f32, (LLVMValueRef[]){s0, s1, s2}, 3,
+ AC_FUNC_ATTR_READNONE);
+ }
- return LLVMBuildFAdd(ctx->builder,
- LLVMBuildFMul(ctx->builder, s0, s1, ""), s2, "");
+ return LLVMBuildFAdd(ctx->builder, LLVMBuildFMul(ctx->builder, s0, s1, ""), s2, "");
}
void ac_build_waitcnt(struct ac_llvm_context *ctx, unsigned wait_flags)
{
- if (!wait_flags)
- return;
-
- unsigned lgkmcnt = 63;
- unsigned vmcnt = ctx->chip_class >= GFX9 ? 63 : 15;
- unsigned vscnt = 63;
-
- if (wait_flags & AC_WAIT_LGKM)
- lgkmcnt = 0;
- if (wait_flags & AC_WAIT_VLOAD)
- vmcnt = 0;
-
- if (wait_flags & AC_WAIT_VSTORE) {
- if (ctx->chip_class >= GFX10)
- vscnt = 0;
- else
- vmcnt = 0;
- }
-
- /* There is no intrinsic for vscnt(0), so use a fence. */
- if ((wait_flags & AC_WAIT_LGKM &&
- wait_flags & AC_WAIT_VLOAD &&
- wait_flags & AC_WAIT_VSTORE) ||
- vscnt == 0) {
- LLVMBuildFence(ctx->builder, LLVMAtomicOrderingRelease, false, "");
- return;
- }
-
- unsigned simm16 = (lgkmcnt << 8) |
- (7 << 4) | /* expcnt */
- (vmcnt & 0xf) |
- ((vmcnt >> 4) << 14);
-
- LLVMValueRef args[1] = {
- LLVMConstInt(ctx->i32, simm16, false),
- };
- ac_build_intrinsic(ctx, "llvm.amdgcn.s.waitcnt",
- ctx->voidt, args, 1, 0);
-}
-
-LLVMValueRef ac_build_fmed3(struct ac_llvm_context *ctx, LLVMValueRef src0,
- LLVMValueRef src1, LLVMValueRef src2,
- unsigned bitsize)
-{
- LLVMValueRef result;
-
- if (bitsize == 64 || (bitsize == 16 && ctx->chip_class <= GFX8)) {
- /* Lower 64-bit fmed because LLVM doesn't expose an intrinsic,
- * or lower 16-bit fmed because it's only supported on GFX9+.
- */
- LLVMValueRef min1, min2, max1;
-
- min1 = ac_build_fmin(ctx, src0, src1);
- max1 = ac_build_fmax(ctx, src0, src1);
- min2 = ac_build_fmin(ctx, max1, src2);
-
- result = ac_build_fmax(ctx, min2, min1);
- } else {
- LLVMTypeRef type;
- char *intr;
-
- if (bitsize == 16) {
- intr = "llvm.amdgcn.fmed3.f16";
- type = ctx->f16;
- } else {
- assert(bitsize == 32);
- intr = "llvm.amdgcn.fmed3.f32";
- type = ctx->f32;
- }
-
- LLVMValueRef params[] = {
- src0,
- src1,
- src2,
- };
-
- result = ac_build_intrinsic(ctx, intr, type, params, 3,
- AC_FUNC_ATTR_READNONE);
- }
-
- return result;
-}
-
-LLVMValueRef ac_build_fract(struct ac_llvm_context *ctx, LLVMValueRef src0,
- unsigned bitsize)
-{
- LLVMTypeRef type;
- char *intr;
-
- if (bitsize == 16) {
- intr = "llvm.amdgcn.fract.f16";
- type = ctx->f16;
- } else if (bitsize == 32) {
- intr = "llvm.amdgcn.fract.f32";
- type = ctx->f32;
- } else {
- intr = "llvm.amdgcn.fract.f64";
- type = ctx->f64;
- }
-
- LLVMValueRef params[] = {
- src0,
- };
- return ac_build_intrinsic(ctx, intr, type, params, 1,
- AC_FUNC_ATTR_READNONE);
-}
-
-LLVMValueRef ac_build_isign(struct ac_llvm_context *ctx, LLVMValueRef src0,
- unsigned bitsize)
-{
- LLVMTypeRef type = LLVMIntTypeInContext(ctx->context, bitsize);
- LLVMValueRef zero = LLVMConstInt(type, 0, false);
- LLVMValueRef one = LLVMConstInt(type, 1, false);
-
- LLVMValueRef cmp, val;
- cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, src0, zero, "");
- val = LLVMBuildSelect(ctx->builder, cmp, one, src0, "");
- cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGE, val, zero, "");
- val = LLVMBuildSelect(ctx->builder, cmp, val, LLVMConstInt(type, -1, true), "");
- return val;
-}
-
-LLVMValueRef ac_build_fsign(struct ac_llvm_context *ctx, LLVMValueRef src0,
- unsigned bitsize)
-{
- LLVMValueRef cmp, val, zero, one;
- LLVMTypeRef type;
-
- if (bitsize == 16) {
- type = ctx->f16;
- zero = ctx->f16_0;
- one = ctx->f16_1;
- } else if (bitsize == 32) {
- type = ctx->f32;
- zero = ctx->f32_0;
- one = ctx->f32_1;
- } else {
- type = ctx->f64;
- zero = ctx->f64_0;
- one = ctx->f64_1;
- }
-
- cmp = LLVMBuildFCmp(ctx->builder, LLVMRealOGT, src0, zero, "");
- val = LLVMBuildSelect(ctx->builder, cmp, one, src0, "");
- cmp = LLVMBuildFCmp(ctx->builder, LLVMRealOGE, val, zero, "");
- val = LLVMBuildSelect(ctx->builder, cmp, val, LLVMConstReal(type, -1.0), "");
- return val;
+ if (!wait_flags)
+ return;
+
+ unsigned lgkmcnt = 63;
+ unsigned vmcnt = ctx->chip_class >= GFX9 ? 63 : 15;
+ unsigned vscnt = 63;
+
+ if (wait_flags & AC_WAIT_LGKM)
+ lgkmcnt = 0;
+ if (wait_flags & AC_WAIT_VLOAD)
+ vmcnt = 0;
+
+ if (wait_flags & AC_WAIT_VSTORE) {
+ if (ctx->chip_class >= GFX10)
+ vscnt = 0;
+ else
+ vmcnt = 0;
+ }
+
+ /* There is no intrinsic for vscnt(0), so use a fence. */
+ if ((wait_flags & AC_WAIT_LGKM && wait_flags & AC_WAIT_VLOAD && wait_flags & AC_WAIT_VSTORE) ||
+ vscnt == 0) {
+ LLVMBuildFence(ctx->builder, LLVMAtomicOrderingRelease, false, "");
+ return;
+ }
+
+ unsigned simm16 = (lgkmcnt << 8) | (7 << 4) | /* expcnt */
+ (vmcnt & 0xf) | ((vmcnt >> 4) << 14);
+
+ LLVMValueRef args[1] = {
+ LLVMConstInt(ctx->i32, simm16, false),
+ };
+ ac_build_intrinsic(ctx, "llvm.amdgcn.s.waitcnt", ctx->voidt, args, 1, 0);
+}
+
+LLVMValueRef ac_build_fract(struct ac_llvm_context *ctx, LLVMValueRef src0, unsigned bitsize)
+{
+ LLVMTypeRef type;
+ char *intr;
+
+ if (bitsize == 16) {
+ intr = "llvm.amdgcn.fract.f16";
+ type = ctx->f16;
+ } else if (bitsize == 32) {
+ intr = "llvm.amdgcn.fract.f32";
+ type = ctx->f32;
+ } else {
+ intr = "llvm.amdgcn.fract.f64";
+ type = ctx->f64;
+ }
+
+ LLVMValueRef params[] = {
+ src0,
+ };
+ return ac_build_intrinsic(ctx, intr, type, params, 1, AC_FUNC_ATTR_READNONE);
+}
+
+LLVMValueRef ac_const_uint_vec(struct ac_llvm_context *ctx, LLVMTypeRef type, uint64_t value)
+{
+
+ if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) {
+ LLVMValueRef scalar = LLVMConstInt(LLVMGetElementType(type), value, 0);
+ unsigned vec_size = LLVMGetVectorSize(type);
+ LLVMValueRef *scalars = alloca(vec_size * sizeof(LLVMValueRef *));
+
+ for (unsigned i = 0; i < vec_size; i++)
+ scalars[i] = scalar;
+ return LLVMConstVector(scalars, vec_size);
+ }
+ return LLVMConstInt(type, value, 0);
+}
+
+LLVMValueRef ac_build_isign(struct ac_llvm_context *ctx, LLVMValueRef src0)
+{
+ LLVMTypeRef type = LLVMTypeOf(src0);
+ LLVMValueRef val;
+
+ /* v_med3 is selected only when max is first. (LLVM bug?) */
+ val = ac_build_imax(ctx, src0, ac_const_uint_vec(ctx, type, -1));
+ return ac_build_imin(ctx, val, ac_const_uint_vec(ctx, type, 1));
+}
+
+static LLVMValueRef ac_eliminate_negative_zero(struct ac_llvm_context *ctx, LLVMValueRef val)
+{
+ ac_enable_signed_zeros(ctx);
+ /* (val + 0) converts negative zero to positive zero. */
+ val = LLVMBuildFAdd(ctx->builder, val, LLVMConstNull(LLVMTypeOf(val)), "");
+ ac_disable_signed_zeros(ctx);
+ return val;
+}
+
+LLVMValueRef ac_build_fsign(struct ac_llvm_context *ctx, LLVMValueRef src)
+{
+ LLVMTypeRef type = LLVMTypeOf(src);
+ LLVMValueRef pos, neg, dw[2], val;
+ unsigned bitsize = ac_get_elem_bits(ctx, type);
+
+ /* The standard version leads to this:
+ * v_cmp_ngt_f32_e64 s[0:1], s4, 0 ; D40B0000 00010004
+ * v_cndmask_b32_e64 v4, 1.0, s4, s[0:1] ; D5010004 000008F2
+ * v_cmp_le_f32_e32 vcc, 0, v4 ; 7C060880
+ * v_cndmask_b32_e32 v4, -1.0, v4, vcc ; 020808F3
+ *
+ * The isign version:
+ * v_add_f32_e64 v4, s4, 0 ; D5030004 00010004
+ * v_med3_i32 v4, v4, -1, 1 ; D5580004 02058304
+ * v_cvt_f32_i32_e32 v4, v4 ; 7E080B04
+ *
+ * (src0 + 0) converts negative zero to positive zero.
+ * After that, int(fsign(x)) == isign(floatBitsToInt(x)).
+ *
+ * For FP64, use the standard version, which doesn't suffer from the huge DP rate
+ * reduction. (FP64 comparisons are as fast as int64 comparisons)
+ */
+ if (bitsize == 16 || bitsize == 32) {
+ val = ac_to_integer(ctx, ac_eliminate_negative_zero(ctx, src));
+ val = ac_build_isign(ctx, val);
+ return LLVMBuildSIToFP(ctx->builder, val, type, "");
+ }
+
+ assert(bitsize == 64);
+ pos = LLVMBuildFCmp(ctx->builder, LLVMRealOGT, src, ctx->f64_0, "");
+ neg = LLVMBuildFCmp(ctx->builder, LLVMRealOLT, src, ctx->f64_0, "");
+ dw[0] = ctx->i32_0;
+ dw[1] = LLVMBuildSelect(
+ ctx->builder, pos, LLVMConstInt(ctx->i32, 0x3FF00000, 0),
+ LLVMBuildSelect(ctx->builder, neg, LLVMConstInt(ctx->i32, 0xBFF00000, 0), ctx->i32_0, ""),
+ "");
+ return LLVMBuildBitCast(ctx->builder, ac_build_gather_values(ctx, dw, 2), ctx->f64, "");
}
LLVMValueRef ac_build_bit_count(struct ac_llvm_context *ctx, LLVMValueRef src0)
{
- LLVMValueRef result;
- unsigned bitsize;
-
- bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0));
-
- switch (bitsize) {
- case 128:
- result = ac_build_intrinsic(ctx, "llvm.ctpop.i128", ctx->i128,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
- result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, "");
- break;
- case 64:
- result = ac_build_intrinsic(ctx, "llvm.ctpop.i64", ctx->i64,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
-
- result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, "");
- break;
- case 32:
- result = ac_build_intrinsic(ctx, "llvm.ctpop.i32", ctx->i32,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
- break;
- case 16:
- result = ac_build_intrinsic(ctx, "llvm.ctpop.i16", ctx->i16,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
-
- result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
- break;
- case 8:
- result = ac_build_intrinsic(ctx, "llvm.ctpop.i8", ctx->i8,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
-
- result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
- break;
- default:
- unreachable(!"invalid bitsize");
- break;
- }
-
- return result;
-}
-
-LLVMValueRef ac_build_bitfield_reverse(struct ac_llvm_context *ctx,
- LLVMValueRef src0)
-{
- LLVMValueRef result;
- unsigned bitsize;
-
- bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0));
-
- switch (bitsize) {
- case 64:
- result = ac_build_intrinsic(ctx, "llvm.bitreverse.i64", ctx->i64,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
-
- result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, "");
- break;
- case 32:
- result = ac_build_intrinsic(ctx, "llvm.bitreverse.i32", ctx->i32,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
- break;
- case 16:
- result = ac_build_intrinsic(ctx, "llvm.bitreverse.i16", ctx->i16,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
-
- result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
- break;
- case 8:
- result = ac_build_intrinsic(ctx, "llvm.bitreverse.i8", ctx->i8,
- (LLVMValueRef []) { src0 }, 1,
- AC_FUNC_ATTR_READNONE);
-
- result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
- break;
- default:
- unreachable(!"invalid bitsize");
- break;
- }
-
- return result;
-}
-
-#define AC_EXP_TARGET 0
+ LLVMValueRef result;
+ unsigned bitsize;
+
+ bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0));
+
+ switch (bitsize) {
+ case 128:
+ result = ac_build_intrinsic(ctx, "llvm.ctpop.i128", ctx->i128, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+ result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, "");
+ break;
+ case 64:
+ result = ac_build_intrinsic(ctx, "llvm.ctpop.i64", ctx->i64, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+
+ result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, "");
+ break;
+ case 32:
+ result = ac_build_intrinsic(ctx, "llvm.ctpop.i32", ctx->i32, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+ break;
+ case 16:
+ result = ac_build_intrinsic(ctx, "llvm.ctpop.i16", ctx->i16, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+
+ result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
+ break;
+ case 8:
+ result = ac_build_intrinsic(ctx, "llvm.ctpop.i8", ctx->i8, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+
+ result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
+ break;
+ default:
+ unreachable(!"invalid bitsize");
+ break;
+ }
+
+ return result;
+}
+
+LLVMValueRef ac_build_bitfield_reverse(struct ac_llvm_context *ctx, LLVMValueRef src0)
+{
+ LLVMValueRef result;
+ unsigned bitsize;
+
+ bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0));
+
+ switch (bitsize) {
+ case 64:
+ result = ac_build_intrinsic(ctx, "llvm.bitreverse.i64", ctx->i64, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+
+ result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, "");
+ break;
+ case 32:
+ result = ac_build_intrinsic(ctx, "llvm.bitreverse.i32", ctx->i32, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+ break;
+ case 16:
+ result = ac_build_intrinsic(ctx, "llvm.bitreverse.i16", ctx->i16, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+
+ result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
+ break;
+ case 8:
+ result = ac_build_intrinsic(ctx, "llvm.bitreverse.i8", ctx->i8, (LLVMValueRef[]){src0}, 1,
+ AC_FUNC_ATTR_READNONE);
+
+ result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
+ break;
+ default:
+ unreachable(!"invalid bitsize");
+ break;
+ }
+
+ return result;
+}
+
+#define AC_EXP_TARGET 0
#define AC_EXP_ENABLED_CHANNELS 1
-#define AC_EXP_OUT0 2
+#define AC_EXP_OUT0 2
-enum ac_ir_type {
- AC_IR_UNDEF,
- AC_IR_CONST,
- AC_IR_VALUE,
+enum ac_ir_type
+{
+ AC_IR_UNDEF,
+ AC_IR_CONST,
+ AC_IR_VALUE,
};
-struct ac_vs_exp_chan
-{
- LLVMValueRef value;
- float const_float;
- enum ac_ir_type type;
+struct ac_vs_exp_chan {
+ LLVMValueRef value;
+ float const_float;
+ enum ac_ir_type type;
};
struct ac_vs_exp_inst {
- unsigned offset;
- LLVMValueRef inst;
- struct ac_vs_exp_chan chan[4];
+ unsigned offset;
+ LLVMValueRef inst;
+ struct ac_vs_exp_chan chan[4];
};
struct ac_vs_exports {
- unsigned num;
- struct ac_vs_exp_inst exp[VARYING_SLOT_MAX];
+ unsigned num;
+ struct ac_vs_exp_inst exp[VARYING_SLOT_MAX];
};
/* Return true if the PARAM export has been eliminated. */
-static bool ac_eliminate_const_output(uint8_t *vs_output_param_offset,
- uint32_t num_outputs,
- struct ac_vs_exp_inst *exp)
-{
- unsigned i, default_val; /* SPI_PS_INPUT_CNTL_i.DEFAULT_VAL */
- bool is_zero[4] = {}, is_one[4] = {};
-
- for (i = 0; i < 4; i++) {
- /* It's a constant expression. Undef outputs are eliminated too. */
- if (exp->chan[i].type == AC_IR_UNDEF) {
- is_zero[i] = true;
- is_one[i] = true;
- } else if (exp->chan[i].type == AC_IR_CONST) {
- if (exp->chan[i].const_float == 0)
- is_zero[i] = true;
- else if (exp->chan[i].const_float == 1)
- is_one[i] = true;
- else
- return false; /* other constant */
- } else
- return false;
- }
-
- /* Only certain combinations of 0 and 1 can be eliminated. */
- if (is_zero[0] && is_zero[1] && is_zero[2])
- default_val = is_zero[3] ? 0 : 1;
- else if (is_one[0] && is_one[1] && is_one[2])
- default_val = is_zero[3] ? 2 : 3;
- else
- return false;
-
- /* The PARAM export can be represented as DEFAULT_VAL. Kill it. */
- LLVMInstructionEraseFromParent(exp->inst);
-
- /* Change OFFSET to DEFAULT_VAL. */
- for (i = 0; i < num_outputs; i++) {
- if (vs_output_param_offset[i] == exp->offset) {
- vs_output_param_offset[i] =
- AC_EXP_PARAM_DEFAULT_VAL_0000 + default_val;
- break;
- }
- }
- return true;
+static bool ac_eliminate_const_output(uint8_t *vs_output_param_offset, uint32_t num_outputs,
+ struct ac_vs_exp_inst *exp)
+{
+ unsigned i, default_val; /* SPI_PS_INPUT_CNTL_i.DEFAULT_VAL */
+ bool is_zero[4] = {}, is_one[4] = {};
+
+ for (i = 0; i < 4; i++) {
+ /* It's a constant expression. Undef outputs are eliminated too. */
+ if (exp->chan[i].type == AC_IR_UNDEF) {
+ is_zero[i] = true;
+ is_one[i] = true;
+ } else if (exp->chan[i].type == AC_IR_CONST) {
+ if (exp->chan[i].const_float == 0)
+ is_zero[i] = true;
+ else if (exp->chan[i].const_float == 1)
+ is_one[i] = true;
+ else
+ return false; /* other constant */
+ } else
+ return false;
+ }
+
+ /* Only certain combinations of 0 and 1 can be eliminated. */
+ if (is_zero[0] && is_zero[1] && is_zero[2])
+ default_val = is_zero[3] ? 0 : 1;
+ else if (is_one[0] && is_one[1] && is_one[2])
+ default_val = is_zero[3] ? 2 : 3;
+ else
+ return false;
+
+ /* The PARAM export can be represented as DEFAULT_VAL. Kill it. */
+ LLVMInstructionEraseFromParent(exp->inst);
+
+ /* Change OFFSET to DEFAULT_VAL. */
+ for (i = 0; i < num_outputs; i++) {
+ if (vs_output_param_offset[i] == exp->offset) {
+ vs_output_param_offset[i] = AC_EXP_PARAM_DEFAULT_VAL_0000 + default_val;
+ break;
+ }
+ }
+ return true;
}
static bool ac_eliminate_duplicated_output(struct ac_llvm_context *ctx,
- uint8_t *vs_output_param_offset,
- uint32_t num_outputs,
- struct ac_vs_exports *processed,
- struct ac_vs_exp_inst *exp)
-{
- unsigned p, copy_back_channels = 0;
-
- /* See if the output is already in the list of processed outputs.
- * The LLVMValueRef comparison relies on SSA.
- */
- for (p = 0; p < processed->num; p++) {
- bool different = false;
-
- for (unsigned j = 0; j < 4; j++) {
- struct ac_vs_exp_chan *c1 = &processed->exp[p].chan[j];
- struct ac_vs_exp_chan *c2 = &exp->chan[j];
-
- /* Treat undef as a match. */
- if (c2->type == AC_IR_UNDEF)
- continue;
-
- /* If c1 is undef but c2 isn't, we can copy c2 to c1
- * and consider the instruction duplicated.
- */
- if (c1->type == AC_IR_UNDEF) {
- copy_back_channels |= 1 << j;
- continue;
- }
-
- /* Test whether the channels are not equal. */
- if (c1->type != c2->type ||
- (c1->type == AC_IR_CONST &&
- c1->const_float != c2->const_float) ||
- (c1->type == AC_IR_VALUE &&
- c1->value != c2->value)) {
- different = true;
- break;
- }
- }
- if (!different)
- break;
-
- copy_back_channels = 0;
- }
- if (p == processed->num)
- return false;
-
- /* If a match was found, but the matching export has undef where the new
- * one has a normal value, copy the normal value to the undef channel.
- */
- struct ac_vs_exp_inst *match = &processed->exp[p];
-
- /* Get current enabled channels mask. */
- LLVMValueRef arg = LLVMGetOperand(match->inst, AC_EXP_ENABLED_CHANNELS);
- unsigned enabled_channels = LLVMConstIntGetZExtValue(arg);
-
- while (copy_back_channels) {
- unsigned chan = u_bit_scan(©_back_channels);
-
- assert(match->chan[chan].type == AC_IR_UNDEF);
- LLVMSetOperand(match->inst, AC_EXP_OUT0 + chan,
- exp->chan[chan].value);
- match->chan[chan] = exp->chan[chan];
-
- /* Update number of enabled channels because the original mask
- * is not always 0xf.
- */
- enabled_channels |= (1 << chan);
- LLVMSetOperand(match->inst, AC_EXP_ENABLED_CHANNELS,
- LLVMConstInt(ctx->i32, enabled_channels, 0));
- }
-
- /* The PARAM export is duplicated. Kill it. */
- LLVMInstructionEraseFromParent(exp->inst);
-
- /* Change OFFSET to the matching export. */
- for (unsigned i = 0; i < num_outputs; i++) {
- if (vs_output_param_offset[i] == exp->offset) {
- vs_output_param_offset[i] = match->offset;
- break;
- }
- }
- return true;
-}
-
-void ac_optimize_vs_outputs(struct ac_llvm_context *ctx,
- LLVMValueRef main_fn,
- uint8_t *vs_output_param_offset,
- uint32_t num_outputs,
- uint8_t *num_param_exports)
-{
- LLVMBasicBlockRef bb;
- bool removed_any = false;
- struct ac_vs_exports exports;
-
- exports.num = 0;
-
- /* Process all LLVM instructions. */
- bb = LLVMGetFirstBasicBlock(main_fn);
- while (bb) {
- LLVMValueRef inst = LLVMGetFirstInstruction(bb);
-
- while (inst) {
- LLVMValueRef cur = inst;
- inst = LLVMGetNextInstruction(inst);
- struct ac_vs_exp_inst exp;
-
- if (LLVMGetInstructionOpcode(cur) != LLVMCall)
- continue;
-
- LLVMValueRef callee = ac_llvm_get_called_value(cur);
-
- if (!ac_llvm_is_function(callee))
- continue;
-
- const char *name = LLVMGetValueName(callee);
- unsigned num_args = LLVMCountParams(callee);
-
- /* Check if this is an export instruction. */
- if ((num_args != 9 && num_args != 8) ||
- (strcmp(name, "llvm.SI.export") &&
- strcmp(name, "llvm.amdgcn.exp.f32")))
- continue;
-
- LLVMValueRef arg = LLVMGetOperand(cur, AC_EXP_TARGET);
- unsigned target = LLVMConstIntGetZExtValue(arg);
-
- if (target < V_008DFC_SQ_EXP_PARAM)
- continue;
-
- target -= V_008DFC_SQ_EXP_PARAM;
-
- /* Parse the instruction. */
- memset(&exp, 0, sizeof(exp));
- exp.offset = target;
- exp.inst = cur;
-
- for (unsigned i = 0; i < 4; i++) {
- LLVMValueRef v = LLVMGetOperand(cur, AC_EXP_OUT0 + i);
-
- exp.chan[i].value = v;
-
- if (LLVMIsUndef(v)) {
- exp.chan[i].type = AC_IR_UNDEF;
- } else if (LLVMIsAConstantFP(v)) {
- LLVMBool loses_info;
- exp.chan[i].type = AC_IR_CONST;
- exp.chan[i].const_float =
- LLVMConstRealGetDouble(v, &loses_info);
- } else {
- exp.chan[i].type = AC_IR_VALUE;
- }
- }
-
- /* Eliminate constant and duplicated PARAM exports. */
- if (ac_eliminate_const_output(vs_output_param_offset,
- num_outputs, &exp) ||
- ac_eliminate_duplicated_output(ctx,
- vs_output_param_offset,
- num_outputs, &exports,
- &exp)) {
- removed_any = true;
- } else {
- exports.exp[exports.num++] = exp;
- }
- }
- bb = LLVMGetNextBasicBlock(bb);
- }
-
- /* Remove holes in export memory due to removed PARAM exports.
- * This is done by renumbering all PARAM exports.
- */
- if (removed_any) {
- uint8_t old_offset[VARYING_SLOT_MAX];
- unsigned out, i;
-
- /* Make a copy of the offsets. We need the old version while
- * we are modifying some of them. */
- memcpy(old_offset, vs_output_param_offset,
- sizeof(old_offset));
-
- for (i = 0; i < exports.num; i++) {
- unsigned offset = exports.exp[i].offset;
-
- /* Update vs_output_param_offset. Multiple outputs can
- * have the same offset.
- */
- for (out = 0; out < num_outputs; out++) {
- if (old_offset[out] == offset)
- vs_output_param_offset[out] = i;
- }
-
- /* Change the PARAM offset in the instruction. */
- LLVMSetOperand(exports.exp[i].inst, AC_EXP_TARGET,
- LLVMConstInt(ctx->i32,
- V_008DFC_SQ_EXP_PARAM + i, 0));
- }
- *num_param_exports = exports.num;
- }
+ uint8_t *vs_output_param_offset, uint32_t num_outputs,
+ struct ac_vs_exports *processed,
+ struct ac_vs_exp_inst *exp)
+{
+ unsigned p, copy_back_channels = 0;
+
+ /* See if the output is already in the list of processed outputs.
+ * The LLVMValueRef comparison relies on SSA.
+ */
+ for (p = 0; p < processed->num; p++) {
+ bool different = false;
+
+ for (unsigned j = 0; j < 4; j++) {
+ struct ac_vs_exp_chan *c1 = &processed->exp[p].chan[j];
+ struct ac_vs_exp_chan *c2 = &exp->chan[j];
+
+ /* Treat undef as a match. */
+ if (c2->type == AC_IR_UNDEF)
+ continue;
+
+ /* If c1 is undef but c2 isn't, we can copy c2 to c1
+ * and consider the instruction duplicated.
+ */
+ if (c1->type == AC_IR_UNDEF) {
+ copy_back_channels |= 1 << j;
+ continue;
+ }
+
+ /* Test whether the channels are not equal. */
+ if (c1->type != c2->type ||
+ (c1->type == AC_IR_CONST && c1->const_float != c2->const_float) ||
+ (c1->type == AC_IR_VALUE && c1->value != c2->value)) {
+ different = true;
+ break;
+ }
+ }
+ if (!different)
+ break;
+
+ copy_back_channels = 0;
+ }
+ if (p == processed->num)
+ return false;
+
+ /* If a match was found, but the matching export has undef where the new
+ * one has a normal value, copy the normal value to the undef channel.
+ */
+ struct ac_vs_exp_inst *match = &processed->exp[p];
+
+ /* Get current enabled channels mask. */
+ LLVMValueRef arg = LLVMGetOperand(match->inst, AC_EXP_ENABLED_CHANNELS);
+ unsigned enabled_channels = LLVMConstIntGetZExtValue(arg);
+
+ while (copy_back_channels) {
+ unsigned chan = u_bit_scan(©_back_channels);
+
+ assert(match->chan[chan].type == AC_IR_UNDEF);
+ LLVMSetOperand(match->inst, AC_EXP_OUT0 + chan, exp->chan[chan].value);
+ match->chan[chan] = exp->chan[chan];
+
+ /* Update number of enabled channels because the original mask
+ * is not always 0xf.
+ */
+ enabled_channels |= (1 << chan);
+ LLVMSetOperand(match->inst, AC_EXP_ENABLED_CHANNELS,
+ LLVMConstInt(ctx->i32, enabled_channels, 0));
+ }
+
+ /* The PARAM export is duplicated. Kill it. */
+ LLVMInstructionEraseFromParent(exp->inst);
+
+ /* Change OFFSET to the matching export. */
+ for (unsigned i = 0; i < num_outputs; i++) {
+ if (vs_output_param_offset[i] == exp->offset) {
+ vs_output_param_offset[i] = match->offset;
+ break;
+ }
+ }
+ return true;
+}
+
+void ac_optimize_vs_outputs(struct ac_llvm_context *ctx, LLVMValueRef main_fn,
+ uint8_t *vs_output_param_offset, uint32_t num_outputs,
+ uint32_t skip_output_mask, uint8_t *num_param_exports)
+{
+ LLVMBasicBlockRef bb;
+ bool removed_any = false;
+ struct ac_vs_exports exports;
+
+ exports.num = 0;
+
+ /* Process all LLVM instructions. */
+ bb = LLVMGetFirstBasicBlock(main_fn);
+ while (bb) {
+ LLVMValueRef inst = LLVMGetFirstInstruction(bb);
+
+ while (inst) {
+ LLVMValueRef cur = inst;
+ inst = LLVMGetNextInstruction(inst);
+ struct ac_vs_exp_inst exp;
+
+ if (LLVMGetInstructionOpcode(cur) != LLVMCall)
+ continue;
+
+ LLVMValueRef callee = ac_llvm_get_called_value(cur);
+
+ if (!ac_llvm_is_function(callee))
+ continue;
+
+ const char *name = LLVMGetValueName(callee);
+ unsigned num_args = LLVMCountParams(callee);
+
+ /* Check if this is an export instruction. */
+ if ((num_args != 9 && num_args != 8) ||
+ (strcmp(name, "llvm.SI.export") && strcmp(name, "llvm.amdgcn.exp.f32")))
+ continue;
+
+ LLVMValueRef arg = LLVMGetOperand(cur, AC_EXP_TARGET);
+ unsigned target = LLVMConstIntGetZExtValue(arg);
+
+ if (target < V_008DFC_SQ_EXP_PARAM)
+ continue;
+
+ target -= V_008DFC_SQ_EXP_PARAM;
+
+ /* Parse the instruction. */
+ memset(&exp, 0, sizeof(exp));
+ exp.offset = target;
+ exp.inst = cur;
+
+ for (unsigned i = 0; i < 4; i++) {
+ LLVMValueRef v = LLVMGetOperand(cur, AC_EXP_OUT0 + i);
+
+ exp.chan[i].value = v;
+
+ if (LLVMIsUndef(v)) {
+ exp.chan[i].type = AC_IR_UNDEF;
+ } else if (LLVMIsAConstantFP(v)) {
+ LLVMBool loses_info;
+ exp.chan[i].type = AC_IR_CONST;
+ exp.chan[i].const_float = LLVMConstRealGetDouble(v, &loses_info);
+ } else {
+ exp.chan[i].type = AC_IR_VALUE;
+ }
+ }
+
+ /* Eliminate constant and duplicated PARAM exports. */
+ if (!((1u << target) & skip_output_mask) &&
+ (ac_eliminate_const_output(vs_output_param_offset, num_outputs, &exp) ||
+ ac_eliminate_duplicated_output(ctx, vs_output_param_offset, num_outputs, &exports,
+ &exp))) {
+ removed_any = true;
+ } else {
+ exports.exp[exports.num++] = exp;
+ }
+ }
+ bb = LLVMGetNextBasicBlock(bb);
+ }
+
+ /* Remove holes in export memory due to removed PARAM exports.
+ * This is done by renumbering all PARAM exports.
+ */
+ if (removed_any) {
+ uint8_t old_offset[VARYING_SLOT_MAX];
+ unsigned out, i;
+
+ /* Make a copy of the offsets. We need the old version while
+ * we are modifying some of them. */
+ memcpy(old_offset, vs_output_param_offset, sizeof(old_offset));
+
+ for (i = 0; i < exports.num; i++) {
+ unsigned offset = exports.exp[i].offset;
+
+ /* Update vs_output_param_offset. Multiple outputs can
+ * have the same offset.
+ */
+ for (out = 0; out < num_outputs; out++) {
+ if (old_offset[out] == offset)
+ vs_output_param_offset[out] = i;
+ }
+
+ /* Change the PARAM offset in the instruction. */
+ LLVMSetOperand(exports.exp[i].inst, AC_EXP_TARGET,
+ LLVMConstInt(ctx->i32, V_008DFC_SQ_EXP_PARAM + i, 0));
+ }
+ *num_param_exports = exports.num;
+ }
}
void ac_init_exec_full_mask(struct ac_llvm_context *ctx)
{
- LLVMValueRef full_mask = LLVMConstInt(ctx->i64, ~0ull, 0);
- ac_build_intrinsic(ctx,
- "llvm.amdgcn.init.exec", ctx->voidt,
- &full_mask, 1, AC_FUNC_ATTR_CONVERGENT);
+ LLVMValueRef full_mask = LLVMConstInt(ctx->i64, ~0ull, 0);
+ ac_build_intrinsic(ctx, "llvm.amdgcn.init.exec", ctx->voidt, &full_mask, 1,
+ AC_FUNC_ATTR_CONVERGENT);
}
void ac_declare_lds_as_pointer(struct ac_llvm_context *ctx)
{
- unsigned lds_size = ctx->chip_class >= GFX7 ? 65536 : 32768;
- ctx->lds = LLVMBuildIntToPtr(ctx->builder, ctx->i32_0,
- LLVMPointerType(LLVMArrayType(ctx->i32, lds_size / 4), AC_ADDR_SPACE_LDS),
- "lds");
-}
-
-LLVMValueRef ac_lds_load(struct ac_llvm_context *ctx,
- LLVMValueRef dw_addr)
-{
- return LLVMBuildLoad(ctx->builder, ac_build_gep0(ctx, ctx->lds, dw_addr), "");
-}
-
-void ac_lds_store(struct ac_llvm_context *ctx,
- LLVMValueRef dw_addr,
- LLVMValueRef value)
-{
- value = ac_to_integer(ctx, value);
- ac_build_indexed_store(ctx, ctx->lds,
- dw_addr, value);
-}
-
-LLVMValueRef ac_find_lsb(struct ac_llvm_context *ctx,
- LLVMTypeRef dst_type,
- LLVMValueRef src0)
-{
- unsigned src0_bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0));
- const char *intrin_name;
- LLVMTypeRef type;
- LLVMValueRef zero;
-
- switch (src0_bitsize) {
- case 64:
- intrin_name = "llvm.cttz.i64";
- type = ctx->i64;
- zero = ctx->i64_0;
- break;
- case 32:
- intrin_name = "llvm.cttz.i32";
- type = ctx->i32;
- zero = ctx->i32_0;
- break;
- case 16:
- intrin_name = "llvm.cttz.i16";
- type = ctx->i16;
- zero = ctx->i16_0;
- break;
- case 8:
- intrin_name = "llvm.cttz.i8";
- type = ctx->i8;
- zero = ctx->i8_0;
- break;
- default:
- unreachable(!"invalid bitsize");
- }
-
- LLVMValueRef params[2] = {
- src0,
-
- /* The value of 1 means that ffs(x=0) = undef, so LLVM won't
- * add special code to check for x=0. The reason is that
- * the LLVM behavior for x=0 is different from what we
- * need here. However, LLVM also assumes that ffs(x) is
- * in [0, 31], but GLSL expects that ffs(0) = -1, so
- * a conditional assignment to handle 0 is still required.
- *
- * The hardware already implements the correct behavior.
- */
- ctx->i1true,
- };
-
- LLVMValueRef lsb = ac_build_intrinsic(ctx, intrin_name, type,
- params, 2,
- AC_FUNC_ATTR_READNONE);
-
- if (src0_bitsize == 64) {
- lsb = LLVMBuildTrunc(ctx->builder, lsb, ctx->i32, "");
- } else if (src0_bitsize < 32) {
- lsb = LLVMBuildSExt(ctx->builder, lsb, ctx->i32, "");
- }
-
- /* TODO: We need an intrinsic to skip this conditional. */
- /* Check for zero: */
- return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder,
- LLVMIntEQ, src0,
- zero, ""),
- LLVMConstInt(ctx->i32, -1, 0), lsb, "");
+ unsigned lds_size = ctx->chip_class >= GFX7 ? 65536 : 32768;
+ ctx->lds = LLVMBuildIntToPtr(
+ ctx->builder, ctx->i32_0,
+ LLVMPointerType(LLVMArrayType(ctx->i32, lds_size / 4), AC_ADDR_SPACE_LDS), "lds");
+}
+
+LLVMValueRef ac_lds_load(struct ac_llvm_context *ctx, LLVMValueRef dw_addr)
+{
+ return LLVMBuildLoad(ctx->builder, ac_build_gep0(ctx, ctx->lds, dw_addr), "");
+}
+
+void ac_lds_store(struct ac_llvm_context *ctx, LLVMValueRef dw_addr, LLVMValueRef value)
+{
+ value = ac_to_integer(ctx, value);
+ ac_build_indexed_store(ctx, ctx->lds, dw_addr, value);
+}
+
+LLVMValueRef ac_find_lsb(struct ac_llvm_context *ctx, LLVMTypeRef dst_type, LLVMValueRef src0)
+{
+ unsigned src0_bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0));
+ const char *intrin_name;
+ LLVMTypeRef type;
+ LLVMValueRef zero;
+
+ switch (src0_bitsize) {
+ case 64:
+ intrin_name = "llvm.cttz.i64";
+ type = ctx->i64;
+ zero = ctx->i64_0;
+ break;
+ case 32:
+ intrin_name = "llvm.cttz.i32";
+ type = ctx->i32;
+ zero = ctx->i32_0;
+ break;
+ case 16:
+ intrin_name = "llvm.cttz.i16";
+ type = ctx->i16;
+ zero = ctx->i16_0;
+ break;
+ case 8:
+ intrin_name = "llvm.cttz.i8";
+ type = ctx->i8;
+ zero = ctx->i8_0;
+ break;
+ default:
+ unreachable(!"invalid bitsize");
+ }
+
+ LLVMValueRef params[2] = {
+ src0,
+
+ /* The value of 1 means that ffs(x=0) = undef, so LLVM won't
+ * add special code to check for x=0. The reason is that
+ * the LLVM behavior for x=0 is different from what we
+ * need here. However, LLVM also assumes that ffs(x) is
+ * in [0, 31], but GLSL expects that ffs(0) = -1, so
+ * a conditional assignment to handle 0 is still required.
+ *
+ * The hardware already implements the correct behavior.
+ */
+ ctx->i1true,
+ };
+
+ LLVMValueRef lsb = ac_build_intrinsic(ctx, intrin_name, type, params, 2, AC_FUNC_ATTR_READNONE);
+
+ if (src0_bitsize == 64) {
+ lsb = LLVMBuildTrunc(ctx->builder, lsb, ctx->i32, "");
+ } else if (src0_bitsize < 32) {
+ lsb = LLVMBuildSExt(ctx->builder, lsb, ctx->i32, "");
+ }
+
+ /* TODO: We need an intrinsic to skip this conditional. */
+ /* Check for zero: */
+ return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder, LLVMIntEQ, src0, zero, ""),
+ LLVMConstInt(ctx->i32, -1, 0), lsb, "");
}
LLVMTypeRef ac_array_in_const_addr_space(LLVMTypeRef elem_type)
{
- return LLVMPointerType(elem_type, AC_ADDR_SPACE_CONST);
+ return LLVMPointerType(elem_type, AC_ADDR_SPACE_CONST);
}
LLVMTypeRef ac_array_in_const32_addr_space(LLVMTypeRef elem_type)
{
- return LLVMPointerType(elem_type, AC_ADDR_SPACE_CONST_32BIT);
+ return LLVMPointerType(elem_type, AC_ADDR_SPACE_CONST_32BIT);
}
-static struct ac_llvm_flow *
-get_current_flow(struct ac_llvm_context *ctx)
+static struct ac_llvm_flow *get_current_flow(struct ac_llvm_context *ctx)
{
- if (ctx->flow->depth > 0)
- return &ctx->flow->stack[ctx->flow->depth - 1];
- return NULL;
+ if (ctx->flow->depth > 0)
+ return &ctx->flow->stack[ctx->flow->depth - 1];
+ return NULL;
}
-static struct ac_llvm_flow *
-get_innermost_loop(struct ac_llvm_context *ctx)
+static struct ac_llvm_flow *get_innermost_loop(struct ac_llvm_context *ctx)
{
- for (unsigned i = ctx->flow->depth; i > 0; --i) {
- if (ctx->flow->stack[i - 1].loop_entry_block)
- return &ctx->flow->stack[i - 1];
- }
- return NULL;
+ for (unsigned i = ctx->flow->depth; i > 0; --i) {
+ if (ctx->flow->stack[i - 1].loop_entry_block)
+ return &ctx->flow->stack[i - 1];
+ }
+ return NULL;
}
-static struct ac_llvm_flow *
-push_flow(struct ac_llvm_context *ctx)
+static struct ac_llvm_flow *push_flow(struct ac_llvm_context *ctx)
{
- struct ac_llvm_flow *flow;
+ struct ac_llvm_flow *flow;
- if (ctx->flow->depth >= ctx->flow->depth_max) {
- unsigned new_max = MAX2(ctx->flow->depth << 1,
- AC_LLVM_INITIAL_CF_DEPTH);
+ if (ctx->flow->depth >= ctx->flow->depth_max) {
+ unsigned new_max = MAX2(ctx->flow->depth << 1, AC_LLVM_INITIAL_CF_DEPTH);
- ctx->flow->stack = realloc(ctx->flow->stack, new_max * sizeof(*ctx->flow->stack));
- ctx->flow->depth_max = new_max;
- }
+ ctx->flow->stack = realloc(ctx->flow->stack, new_max * sizeof(*ctx->flow->stack));
+ ctx->flow->depth_max = new_max;
+ }
- flow = &ctx->flow->stack[ctx->flow->depth];
- ctx->flow->depth++;
+ flow = &ctx->flow->stack[ctx->flow->depth];
+ ctx->flow->depth++;
- flow->next_block = NULL;
- flow->loop_entry_block = NULL;
- return flow;
+ flow->next_block = NULL;
+ flow->loop_entry_block = NULL;
+ return flow;
}
-static void set_basicblock_name(LLVMBasicBlockRef bb, const char *base,
- int label_id)
+static void set_basicblock_name(LLVMBasicBlockRef bb, const char *base, int label_id)
{
- char buf[32];
- snprintf(buf, sizeof(buf), "%s%d", base, label_id);
- LLVMSetValueName(LLVMBasicBlockAsValue(bb), buf);
+ char buf[32];
+ snprintf(buf, sizeof(buf), "%s%d", base, label_id);
+ LLVMSetValueName(LLVMBasicBlockAsValue(bb), buf);
}
/* Append a basic block at the level of the parent flow.
*/
-static LLVMBasicBlockRef append_basic_block(struct ac_llvm_context *ctx,
- const char *name)
+static LLVMBasicBlockRef append_basic_block(struct ac_llvm_context *ctx, const char *name)
{
- assert(ctx->flow->depth >= 1);
+ assert(ctx->flow->depth >= 1);
- if (ctx->flow->depth >= 2) {
- struct ac_llvm_flow *flow = &ctx->flow->stack[ctx->flow->depth - 2];
+ if (ctx->flow->depth >= 2) {
+ struct ac_llvm_flow *flow = &ctx->flow->stack[ctx->flow->depth - 2];
- return LLVMInsertBasicBlockInContext(ctx->context,
- flow->next_block, name);
- }
+ return LLVMInsertBasicBlockInContext(ctx->context, flow->next_block, name);
+ }
- LLVMValueRef main_fn =
- LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx->builder));
- return LLVMAppendBasicBlockInContext(ctx->context, main_fn, name);
+ LLVMValueRef main_fn = LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx->builder));
+ return LLVMAppendBasicBlockInContext(ctx->context, main_fn, name);
}
/* Emit a branch to the given default target for the current block if
* applicable -- that is, if the current block does not already contain a
* branch from a break or continue.
*/
-static void emit_default_branch(LLVMBuilderRef builder,
- LLVMBasicBlockRef target)
+static void emit_default_branch(LLVMBuilderRef builder, LLVMBasicBlockRef target)
{
- if (!LLVMGetBasicBlockTerminator(LLVMGetInsertBlock(builder)))
- LLVMBuildBr(builder, target);
+ if (!LLVMGetBasicBlockTerminator(LLVMGetInsertBlock(builder)))
+ LLVMBuildBr(builder, target);
}
void ac_build_bgnloop(struct ac_llvm_context *ctx, int label_id)
{
- struct ac_llvm_flow *flow = push_flow(ctx);
- flow->loop_entry_block = append_basic_block(ctx, "LOOP");
- flow->next_block = append_basic_block(ctx, "ENDLOOP");
- set_basicblock_name(flow->loop_entry_block, "loop", label_id);
- LLVMBuildBr(ctx->builder, flow->loop_entry_block);
- LLVMPositionBuilderAtEnd(ctx->builder, flow->loop_entry_block);
+ struct ac_llvm_flow *flow = push_flow(ctx);
+ flow->loop_entry_block = append_basic_block(ctx, "LOOP");
+ flow->next_block = append_basic_block(ctx, "ENDLOOP");
+ set_basicblock_name(flow->loop_entry_block, "loop", label_id);
+ LLVMBuildBr(ctx->builder, flow->loop_entry_block);
+ LLVMPositionBuilderAtEnd(ctx->builder, flow->loop_entry_block);
}
void ac_build_break(struct ac_llvm_context *ctx)
{
- struct ac_llvm_flow *flow = get_innermost_loop(ctx);
- LLVMBuildBr(ctx->builder, flow->next_block);
+ struct ac_llvm_flow *flow = get_innermost_loop(ctx);
+ LLVMBuildBr(ctx->builder, flow->next_block);
}
void ac_build_continue(struct ac_llvm_context *ctx)
{
- struct ac_llvm_flow *flow = get_innermost_loop(ctx);
- LLVMBuildBr(ctx->builder, flow->loop_entry_block);
+ struct ac_llvm_flow *flow = get_innermost_loop(ctx);
+ LLVMBuildBr(ctx->builder, flow->loop_entry_block);
}
void ac_build_else(struct ac_llvm_context *ctx, int label_id)
{
- struct ac_llvm_flow *current_branch = get_current_flow(ctx);
- LLVMBasicBlockRef endif_block;
+ struct ac_llvm_flow *current_branch = get_current_flow(ctx);
+ LLVMBasicBlockRef endif_block;
- assert(!current_branch->loop_entry_block);
+ assert(!current_branch->loop_entry_block);
- endif_block = append_basic_block(ctx, "ENDIF");
- emit_default_branch(ctx->builder, endif_block);
+ endif_block = append_basic_block(ctx, "ENDIF");
+ emit_default_branch(ctx->builder, endif_block);
- LLVMPositionBuilderAtEnd(ctx->builder, current_branch->next_block);
- set_basicblock_name(current_branch->next_block, "else", label_id);
+ LLVMPositionBuilderAtEnd(ctx->builder, current_branch->next_block);
+ set_basicblock_name(current_branch->next_block, "else", label_id);
- current_branch->next_block = endif_block;
+ current_branch->next_block = endif_block;
}
void ac_build_endif(struct ac_llvm_context *ctx, int label_id)
{
- struct ac_llvm_flow *current_branch = get_current_flow(ctx);
+ struct ac_llvm_flow *current_branch = get_current_flow(ctx);
- assert(!current_branch->loop_entry_block);
+ assert(!current_branch->loop_entry_block);
- emit_default_branch(ctx->builder, current_branch->next_block);
- LLVMPositionBuilderAtEnd(ctx->builder, current_branch->next_block);
- set_basicblock_name(current_branch->next_block, "endif", label_id);
+ emit_default_branch(ctx->builder, current_branch->next_block);
+ LLVMPositionBuilderAtEnd(ctx->builder, current_branch->next_block);
+ set_basicblock_name(current_branch->next_block, "endif", label_id);
- ctx->flow->depth--;
+ ctx->flow->depth--;
}
void ac_build_endloop(struct ac_llvm_context *ctx, int label_id)
{
- struct ac_llvm_flow *current_loop = get_current_flow(ctx);
+ struct ac_llvm_flow *current_loop = get_current_flow(ctx);
- assert(current_loop->loop_entry_block);
+ assert(current_loop->loop_entry_block);
- emit_default_branch(ctx->builder, current_loop->loop_entry_block);
+ emit_default_branch(ctx->builder, current_loop->loop_entry_block);
- LLVMPositionBuilderAtEnd(ctx->builder, current_loop->next_block);
- set_basicblock_name(current_loop->next_block, "endloop", label_id);
- ctx->flow->depth--;
+ LLVMPositionBuilderAtEnd(ctx->builder, current_loop->next_block);
+ set_basicblock_name(current_loop->next_block, "endloop", label_id);
+ ctx->flow->depth--;
}
void ac_build_ifcc(struct ac_llvm_context *ctx, LLVMValueRef cond, int label_id)
{
- struct ac_llvm_flow *flow = push_flow(ctx);
- LLVMBasicBlockRef if_block;
+ struct ac_llvm_flow *flow = push_flow(ctx);
+ LLVMBasicBlockRef if_block;
- if_block = append_basic_block(ctx, "IF");
- flow->next_block = append_basic_block(ctx, "ELSE");
- set_basicblock_name(if_block, "if", label_id);
- LLVMBuildCondBr(ctx->builder, cond, if_block, flow->next_block);
- LLVMPositionBuilderAtEnd(ctx->builder, if_block);
+ if_block = append_basic_block(ctx, "IF");
+ flow->next_block = append_basic_block(ctx, "ELSE");
+ set_basicblock_name(if_block, "if", label_id);
+ LLVMBuildCondBr(ctx->builder, cond, if_block, flow->next_block);
+ LLVMPositionBuilderAtEnd(ctx->builder, if_block);
}
-void ac_build_if(struct ac_llvm_context *ctx, LLVMValueRef value,
- int label_id)
+void ac_build_if(struct ac_llvm_context *ctx, LLVMValueRef value, int label_id)
{
- LLVMValueRef cond = LLVMBuildFCmp(ctx->builder, LLVMRealUNE,
- value, ctx->f32_0, "");
- ac_build_ifcc(ctx, cond, label_id);
+ LLVMValueRef cond = LLVMBuildFCmp(ctx->builder, LLVMRealUNE, value, ctx->f32_0, "");
+ ac_build_ifcc(ctx, cond, label_id);
}
-void ac_build_uif(struct ac_llvm_context *ctx, LLVMValueRef value,
- int label_id)
+void ac_build_uif(struct ac_llvm_context *ctx, LLVMValueRef value, int label_id)
{
- LLVMValueRef cond = LLVMBuildICmp(ctx->builder, LLVMIntNE,
- ac_to_integer(ctx, value),
- ctx->i32_0, "");
- ac_build_ifcc(ctx, cond, label_id);
+ LLVMValueRef cond =
+ LLVMBuildICmp(ctx->builder, LLVMIntNE, ac_to_integer(ctx, value), ctx->i32_0, "");
+ ac_build_ifcc(ctx, cond, label_id);
}
-LLVMValueRef ac_build_alloca_undef(struct ac_llvm_context *ac, LLVMTypeRef type,
- const char *name)
+LLVMValueRef ac_build_alloca_undef(struct ac_llvm_context *ac, LLVMTypeRef type, const char *name)
{
- LLVMBuilderRef builder = ac->builder;
- LLVMBasicBlockRef current_block = LLVMGetInsertBlock(builder);
- LLVMValueRef function = LLVMGetBasicBlockParent(current_block);
- LLVMBasicBlockRef first_block = LLVMGetEntryBasicBlock(function);
- LLVMValueRef first_instr = LLVMGetFirstInstruction(first_block);
- LLVMBuilderRef first_builder = LLVMCreateBuilderInContext(ac->context);
- LLVMValueRef res;
+ LLVMBuilderRef builder = ac->builder;
+ LLVMBasicBlockRef current_block = LLVMGetInsertBlock(builder);
+ LLVMValueRef function = LLVMGetBasicBlockParent(current_block);
+ LLVMBasicBlockRef first_block = LLVMGetEntryBasicBlock(function);
+ LLVMValueRef first_instr = LLVMGetFirstInstruction(first_block);
+ LLVMBuilderRef first_builder = LLVMCreateBuilderInContext(ac->context);
+ LLVMValueRef res;
- if (first_instr) {
- LLVMPositionBuilderBefore(first_builder, first_instr);
- } else {
- LLVMPositionBuilderAtEnd(first_builder, first_block);
- }
+ if (first_instr) {
+ LLVMPositionBuilderBefore(first_builder, first_instr);
+ } else {
+ LLVMPositionBuilderAtEnd(first_builder, first_block);
+ }
- res = LLVMBuildAlloca(first_builder, type, name);
- LLVMDisposeBuilder(first_builder);
- return res;
+ res = LLVMBuildAlloca(first_builder, type, name);
+ LLVMDisposeBuilder(first_builder);
+ return res;
}
-LLVMValueRef ac_build_alloca(struct ac_llvm_context *ac,
- LLVMTypeRef type, const char *name)
+LLVMValueRef ac_build_alloca(struct ac_llvm_context *ac, LLVMTypeRef type, const char *name)
{
- LLVMValueRef ptr = ac_build_alloca_undef(ac, type, name);
- LLVMBuildStore(ac->builder, LLVMConstNull(type), ptr);
- return ptr;
+ LLVMValueRef ptr = ac_build_alloca_undef(ac, type, name);
+ LLVMBuildStore(ac->builder, LLVMConstNull(type), ptr);
+ return ptr;
}
-LLVMValueRef ac_cast_ptr(struct ac_llvm_context *ctx, LLVMValueRef ptr,
- LLVMTypeRef type)
+LLVMValueRef ac_cast_ptr(struct ac_llvm_context *ctx, LLVMValueRef ptr, LLVMTypeRef type)
{
- int addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr));
- return LLVMBuildBitCast(ctx->builder, ptr,
- LLVMPointerType(type, addr_space), "");
+ int addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr));
+ return LLVMBuildBitCast(ctx->builder, ptr, LLVMPointerType(type, addr_space), "");
}
-LLVMValueRef ac_trim_vector(struct ac_llvm_context *ctx, LLVMValueRef value,
- unsigned count)
+LLVMValueRef ac_trim_vector(struct ac_llvm_context *ctx, LLVMValueRef value, unsigned count)
{
- unsigned num_components = ac_get_llvm_num_components(value);
- if (count == num_components)
- return value;
+ unsigned num_components = ac_get_llvm_num_components(value);
+ if (count == num_components)
+ return value;
- LLVMValueRef masks[MAX2(count, 2)];
- masks[0] = ctx->i32_0;
- masks[1] = ctx->i32_1;
- for (unsigned i = 2; i < count; i++)
- masks[i] = LLVMConstInt(ctx->i32, i, false);
+ LLVMValueRef masks[MAX2(count, 2)];
+ masks[0] = ctx->i32_0;
+ masks[1] = ctx->i32_1;
+ for (unsigned i = 2; i < count; i++)
+ masks[i] = LLVMConstInt(ctx->i32, i, false);
- if (count == 1)
- return LLVMBuildExtractElement(ctx->builder, value, masks[0],
- "");
+ if (count == 1)
+ return LLVMBuildExtractElement(ctx->builder, value, masks[0], "");
- LLVMValueRef swizzle = LLVMConstVector(masks, count);
- return LLVMBuildShuffleVector(ctx->builder, value, value, swizzle, "");
+ LLVMValueRef swizzle = LLVMConstVector(masks, count);
+ return LLVMBuildShuffleVector(ctx->builder, value, value, swizzle, "");
}
-LLVMValueRef ac_unpack_param(struct ac_llvm_context *ctx, LLVMValueRef param,
- unsigned rshift, unsigned bitwidth)
+LLVMValueRef ac_unpack_param(struct ac_llvm_context *ctx, LLVMValueRef param, unsigned rshift,
+ unsigned bitwidth)
{
- LLVMValueRef value = param;
- if (rshift)
- value = LLVMBuildLShr(ctx->builder, value,
- LLVMConstInt(ctx->i32, rshift, false), "");
+ LLVMValueRef value = param;
+ if (rshift)
+ value = LLVMBuildLShr(ctx->builder, value, LLVMConstInt(ctx->i32, rshift, false), "");
- if (rshift + bitwidth < 32) {
- unsigned mask = (1 << bitwidth) - 1;
- value = LLVMBuildAnd(ctx->builder, value,
- LLVMConstInt(ctx->i32, mask, false), "");
- }
- return value;
+ if (rshift + bitwidth < 32) {
+ unsigned mask = (1 << bitwidth) - 1;
+ value = LLVMBuildAnd(ctx->builder, value, LLVMConstInt(ctx->i32, mask, false), "");
+ }
+ return value;
}
/* Adjust the sample index according to FMASK.
* The sample index should be adjusted as follows:
* addr[sample_index] = (fmask >> (addr[sample_index] * 4)) & 0xF;
*/
-void ac_apply_fmask_to_sample(struct ac_llvm_context *ac, LLVMValueRef fmask,
- LLVMValueRef *addr, bool is_array_tex)
-{
- struct ac_image_args fmask_load = {};
- fmask_load.opcode = ac_image_load;
- fmask_load.resource = fmask;
- fmask_load.dmask = 0xf;
- fmask_load.dim = is_array_tex ? ac_image_2darray : ac_image_2d;
- fmask_load.attributes = AC_FUNC_ATTR_READNONE;
-
- fmask_load.coords[0] = addr[0];
- fmask_load.coords[1] = addr[1];
- if (is_array_tex)
- fmask_load.coords[2] = addr[2];
-
- LLVMValueRef fmask_value = ac_build_image_opcode(ac, &fmask_load);
- fmask_value = LLVMBuildExtractElement(ac->builder, fmask_value,
- ac->i32_0, "");
-
- /* Apply the formula. */
- unsigned sample_chan = is_array_tex ? 3 : 2;
- LLVMValueRef final_sample;
- final_sample = LLVMBuildMul(ac->builder, addr[sample_chan],
- LLVMConstInt(ac->i32, 4, 0), "");
- final_sample = LLVMBuildLShr(ac->builder, fmask_value, final_sample, "");
- /* Mask the sample index by 0x7, because 0x8 means an unknown value
- * with EQAA, so those will map to 0. */
- final_sample = LLVMBuildAnd(ac->builder, final_sample,
- LLVMConstInt(ac->i32, 0x7, 0), "");
-
- /* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
- * resource descriptor is 0 (invalid).
- */
- LLVMValueRef tmp;
- tmp = LLVMBuildBitCast(ac->builder, fmask, ac->v8i32, "");
- tmp = LLVMBuildExtractElement(ac->builder, tmp, ac->i32_1, "");
- tmp = LLVMBuildICmp(ac->builder, LLVMIntNE, tmp, ac->i32_0, "");
-
- /* Replace the MSAA sample index. */
- addr[sample_chan] = LLVMBuildSelect(ac->builder, tmp, final_sample,
- addr[sample_chan], "");
-}
-
-static LLVMValueRef
-_ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef lane)
-{
- LLVMTypeRef type = LLVMTypeOf(src);
- LLVMValueRef result;
-
- src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
- if (lane)
- lane = LLVMBuildZExt(ctx->builder, lane, ctx->i32, "");
-
- result = ac_build_intrinsic(ctx,
- lane == NULL ? "llvm.amdgcn.readfirstlane" : "llvm.amdgcn.readlane",
- ctx->i32, (LLVMValueRef []) { src, lane },
- lane == NULL ? 1 : 2,
- AC_FUNC_ATTR_READNONE |
- AC_FUNC_ATTR_CONVERGENT);
-
- return LLVMBuildTrunc(ctx->builder, result, type, "");
+void ac_apply_fmask_to_sample(struct ac_llvm_context *ac, LLVMValueRef fmask, LLVMValueRef *addr,
+ bool is_array_tex)
+{
+ struct ac_image_args fmask_load = {};
+ fmask_load.opcode = ac_image_load;
+ fmask_load.resource = fmask;
+ fmask_load.dmask = 0xf;
+ fmask_load.dim = is_array_tex ? ac_image_2darray : ac_image_2d;
+ fmask_load.attributes = AC_FUNC_ATTR_READNONE;
+
+ fmask_load.coords[0] = addr[0];
+ fmask_load.coords[1] = addr[1];
+ if (is_array_tex)
+ fmask_load.coords[2] = addr[2];
+
+ LLVMValueRef fmask_value = ac_build_image_opcode(ac, &fmask_load);
+ fmask_value = LLVMBuildExtractElement(ac->builder, fmask_value, ac->i32_0, "");
+
+ /* Apply the formula. */
+ unsigned sample_chan = is_array_tex ? 3 : 2;
+ LLVMValueRef final_sample;
+ final_sample = LLVMBuildMul(ac->builder, addr[sample_chan], LLVMConstInt(ac->i32, 4, 0), "");
+ final_sample = LLVMBuildLShr(ac->builder, fmask_value, final_sample, "");
+ /* Mask the sample index by 0x7, because 0x8 means an unknown value
+ * with EQAA, so those will map to 0. */
+ final_sample = LLVMBuildAnd(ac->builder, final_sample, LLVMConstInt(ac->i32, 0x7, 0), "");
+
+ /* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
+ * resource descriptor is 0 (invalid).
+ */
+ LLVMValueRef tmp;
+ tmp = LLVMBuildBitCast(ac->builder, fmask, ac->v8i32, "");
+ tmp = LLVMBuildExtractElement(ac->builder, tmp, ac->i32_1, "");
+ tmp = LLVMBuildICmp(ac->builder, LLVMIntNE, tmp, ac->i32_0, "");
+
+ /* Replace the MSAA sample index. */
+ addr[sample_chan] = LLVMBuildSelect(ac->builder, tmp, final_sample, addr[sample_chan], "");
+}
+
+static LLVMValueRef _ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src,
+ LLVMValueRef lane, bool with_opt_barrier)
+{
+ LLVMTypeRef type = LLVMTypeOf(src);
+ LLVMValueRef result;
+
+ if (with_opt_barrier)
+ ac_build_optimization_barrier(ctx, &src);
+
+ src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
+ if (lane)
+ lane = LLVMBuildZExt(ctx->builder, lane, ctx->i32, "");
+
+ result =
+ ac_build_intrinsic(ctx, lane == NULL ? "llvm.amdgcn.readfirstlane" : "llvm.amdgcn.readlane",
+ ctx->i32, (LLVMValueRef[]){src, lane}, lane == NULL ? 1 : 2,
+ AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
+
+ return LLVMBuildTrunc(ctx->builder, result, type, "");
+}
+
+static LLVMValueRef ac_build_readlane_common(struct ac_llvm_context *ctx, LLVMValueRef src,
+ LLVMValueRef lane, bool with_opt_barrier)
+{
+ LLVMTypeRef src_type = LLVMTypeOf(src);
+ src = ac_to_integer(ctx, src);
+ unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
+ LLVMValueRef ret;
+
+ if (bits > 32) {
+ assert(bits % 32 == 0);
+ LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32);
+ LLVMValueRef src_vector = LLVMBuildBitCast(ctx->builder, src, vec_type, "");
+ ret = LLVMGetUndef(vec_type);
+ for (unsigned i = 0; i < bits / 32; i++) {
+ LLVMValueRef ret_comp;
+
+ src = LLVMBuildExtractElement(ctx->builder, src_vector, LLVMConstInt(ctx->i32, i, 0), "");
+
+ ret_comp = _ac_build_readlane(ctx, src, lane, with_opt_barrier);
+
+ ret =
+ LLVMBuildInsertElement(ctx->builder, ret, ret_comp, LLVMConstInt(ctx->i32, i, 0), "");
+ }
+ } else {
+ ret = _ac_build_readlane(ctx, src, lane, with_opt_barrier);
+ }
+
+ if (LLVMGetTypeKind(src_type) == LLVMPointerTypeKind)
+ return LLVMBuildIntToPtr(ctx->builder, ret, src_type, "");
+ return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
}
/**
* @param lane - id of the lane or NULL for the first active lane
* @return value of the lane
*/
-LLVMValueRef ac_build_readlane_no_opt_barrier(struct ac_llvm_context *ctx,
- LLVMValueRef src, LLVMValueRef lane)
-{
- unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
- LLVMValueRef ret;
-
- if (bits > 32) {
- assert(bits % 32 == 0);
- LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32);
- LLVMValueRef src_vector =
- LLVMBuildBitCast(ctx->builder, src, vec_type, "");
- ret = LLVMGetUndef(vec_type);
- for (unsigned i = 0; i < bits / 32; i++) {
- src = LLVMBuildExtractElement(ctx->builder, src_vector,
- LLVMConstInt(ctx->i32, i, 0), "");
- LLVMValueRef ret_comp = _ac_build_readlane(ctx, src, lane);
- ret = LLVMBuildInsertElement(ctx->builder, ret, ret_comp,
- LLVMConstInt(ctx->i32, i, 0), "");
- }
- } else {
- ret = _ac_build_readlane(ctx, src, lane);
- }
-
- return ret;
-}
-
-LLVMValueRef
-ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef lane)
-{
- LLVMTypeRef src_type = LLVMTypeOf(src);
- src = ac_to_integer(ctx, src);
- LLVMValueRef ret;
-
- ac_build_optimization_barrier(ctx, &src);
-
- ret = ac_build_readlane_no_opt_barrier(ctx, src, lane);
- if (LLVMGetTypeKind(src_type) == LLVMPointerTypeKind)
- return LLVMBuildIntToPtr(ctx->builder, ret, src_type, "");
- return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
-}
-
-LLVMValueRef
-ac_build_writelane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef value, LLVMValueRef lane)
-{
- return ac_build_intrinsic(ctx, "llvm.amdgcn.writelane", ctx->i32,
- (LLVMValueRef []) {value, lane, src}, 3,
- AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
-}
-
-LLVMValueRef
-ac_build_mbcnt(struct ac_llvm_context *ctx, LLVMValueRef mask)
-{
- if (ctx->wave_size == 32) {
- return ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.lo", ctx->i32,
- (LLVMValueRef []) { mask, ctx->i32_0 },
- 2, AC_FUNC_ATTR_READNONE);
- }
- LLVMValueRef mask_vec = LLVMBuildBitCast(ctx->builder, mask,
- LLVMVectorType(ctx->i32, 2),
- "");
- LLVMValueRef mask_lo = LLVMBuildExtractElement(ctx->builder, mask_vec,
- ctx->i32_0, "");
- LLVMValueRef mask_hi = LLVMBuildExtractElement(ctx->builder, mask_vec,
- ctx->i32_1, "");
- LLVMValueRef val =
- ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.lo", ctx->i32,
- (LLVMValueRef []) { mask_lo, ctx->i32_0 },
- 2, AC_FUNC_ATTR_READNONE);
- val = ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.hi", ctx->i32,
- (LLVMValueRef []) { mask_hi, val },
- 2, AC_FUNC_ATTR_READNONE);
- return val;
-}
-
-enum dpp_ctrl {
- _dpp_quad_perm = 0x000,
- _dpp_row_sl = 0x100,
- _dpp_row_sr = 0x110,
- _dpp_row_rr = 0x120,
- dpp_wf_sl1 = 0x130,
- dpp_wf_rl1 = 0x134,
- dpp_wf_sr1 = 0x138,
- dpp_wf_rr1 = 0x13C,
- dpp_row_mirror = 0x140,
- dpp_row_half_mirror = 0x141,
- dpp_row_bcast15 = 0x142,
- dpp_row_bcast31 = 0x143
+LLVMValueRef ac_build_readlane_no_opt_barrier(struct ac_llvm_context *ctx, LLVMValueRef src,
+ LLVMValueRef lane)
+{
+ return ac_build_readlane_common(ctx, src, lane, false);
+}
+
+LLVMValueRef ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef lane)
+{
+ return ac_build_readlane_common(ctx, src, lane, true);
+}
+
+LLVMValueRef ac_build_writelane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef value,
+ LLVMValueRef lane)
+{
+ return ac_build_intrinsic(ctx, "llvm.amdgcn.writelane", ctx->i32,
+ (LLVMValueRef[]){value, lane, src}, 3,
+ AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
+}
+
+LLVMValueRef ac_build_mbcnt(struct ac_llvm_context *ctx, LLVMValueRef mask)
+{
+ if (ctx->wave_size == 32) {
+ return ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.lo", ctx->i32,
+ (LLVMValueRef[]){mask, ctx->i32_0}, 2, AC_FUNC_ATTR_READNONE);
+ }
+ LLVMValueRef mask_vec = LLVMBuildBitCast(ctx->builder, mask, ctx->v2i32, "");
+ LLVMValueRef mask_lo = LLVMBuildExtractElement(ctx->builder, mask_vec, ctx->i32_0, "");
+ LLVMValueRef mask_hi = LLVMBuildExtractElement(ctx->builder, mask_vec, ctx->i32_1, "");
+ LLVMValueRef val =
+ ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.lo", ctx->i32,
+ (LLVMValueRef[]){mask_lo, ctx->i32_0}, 2, AC_FUNC_ATTR_READNONE);
+ val = ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.hi", ctx->i32, (LLVMValueRef[]){mask_hi, val},
+ 2, AC_FUNC_ATTR_READNONE);
+ return val;
+}
+
+enum dpp_ctrl
+{
+ _dpp_quad_perm = 0x000,
+ _dpp_row_sl = 0x100,
+ _dpp_row_sr = 0x110,
+ _dpp_row_rr = 0x120,
+ dpp_wf_sl1 = 0x130,
+ dpp_wf_rl1 = 0x134,
+ dpp_wf_sr1 = 0x138,
+ dpp_wf_rr1 = 0x13C,
+ dpp_row_mirror = 0x140,
+ dpp_row_half_mirror = 0x141,
+ dpp_row_bcast15 = 0x142,
+ dpp_row_bcast31 = 0x143
};
-static inline enum dpp_ctrl
-dpp_quad_perm(unsigned lane0, unsigned lane1, unsigned lane2, unsigned lane3)
-{
- assert(lane0 < 4 && lane1 < 4 && lane2 < 4 && lane3 < 4);
- return _dpp_quad_perm | lane0 | (lane1 << 2) | (lane2 << 4) | (lane3 << 6);
-}
-
-static inline enum dpp_ctrl
-dpp_row_sl(unsigned amount)
-{
- assert(amount > 0 && amount < 16);
- return _dpp_row_sl | amount;
-}
-
-static inline enum dpp_ctrl
-dpp_row_sr(unsigned amount)
-{
- assert(amount > 0 && amount < 16);
- return _dpp_row_sr | amount;
-}
-
-static LLVMValueRef
-_ac_build_dpp(struct ac_llvm_context *ctx, LLVMValueRef old, LLVMValueRef src,
- enum dpp_ctrl dpp_ctrl, unsigned row_mask, unsigned bank_mask,
- bool bound_ctrl)
-{
- LLVMTypeRef type = LLVMTypeOf(src);
- LLVMValueRef res;
-
- old = LLVMBuildZExt(ctx->builder, old, ctx->i32, "");
- src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
-
- res = ac_build_intrinsic(ctx, "llvm.amdgcn.update.dpp.i32", ctx->i32,
- (LLVMValueRef[]) {
- old, src,
- LLVMConstInt(ctx->i32, dpp_ctrl, 0),
- LLVMConstInt(ctx->i32, row_mask, 0),
- LLVMConstInt(ctx->i32, bank_mask, 0),
- LLVMConstInt(ctx->i1, bound_ctrl, 0) },
- 6, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
-
- return LLVMBuildTrunc(ctx->builder, res, type, "");
-}
-
-static LLVMValueRef
-ac_build_dpp(struct ac_llvm_context *ctx, LLVMValueRef old, LLVMValueRef src,
- enum dpp_ctrl dpp_ctrl, unsigned row_mask, unsigned bank_mask,
- bool bound_ctrl)
-{
- LLVMTypeRef src_type = LLVMTypeOf(src);
- src = ac_to_integer(ctx, src);
- old = ac_to_integer(ctx, old);
- unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
- LLVMValueRef ret;
- if (bits > 32) {
- assert(bits % 32 == 0);
- LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32);
- LLVMValueRef src_vector =
- LLVMBuildBitCast(ctx->builder, src, vec_type, "");
- LLVMValueRef old_vector =
- LLVMBuildBitCast(ctx->builder, old, vec_type, "");
- ret = LLVMGetUndef(vec_type);
- for (unsigned i = 0; i < bits / 32; i++) {
- src = LLVMBuildExtractElement(ctx->builder, src_vector,
- LLVMConstInt(ctx->i32, i,
- 0), "");
- old = LLVMBuildExtractElement(ctx->builder, old_vector,
- LLVMConstInt(ctx->i32, i,
- 0), "");
- LLVMValueRef ret_comp = _ac_build_dpp(ctx, old, src,
- dpp_ctrl,
- row_mask,
- bank_mask,
- bound_ctrl);
- ret = LLVMBuildInsertElement(ctx->builder, ret,
- ret_comp,
- LLVMConstInt(ctx->i32, i,
- 0), "");
- }
- } else {
- ret = _ac_build_dpp(ctx, old, src, dpp_ctrl, row_mask,
- bank_mask, bound_ctrl);
- }
- return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
-}
-
-static LLVMValueRef
-_ac_build_permlane16(struct ac_llvm_context *ctx, LLVMValueRef src, uint64_t sel,
- bool exchange_rows, bool bound_ctrl)
-{
- LLVMTypeRef type = LLVMTypeOf(src);
- LLVMValueRef result;
-
- src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
-
- LLVMValueRef args[6] = {
- src,
- src,
- LLVMConstInt(ctx->i32, sel, false),
- LLVMConstInt(ctx->i32, sel >> 32, false),
- ctx->i1true, /* fi */
- bound_ctrl ? ctx->i1true : ctx->i1false,
- };
-
- result = ac_build_intrinsic(ctx, exchange_rows ? "llvm.amdgcn.permlanex16"
- : "llvm.amdgcn.permlane16",
- ctx->i32, args, 6,
- AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
-
- return LLVMBuildTrunc(ctx->builder, result, type, "");
-}
-
-static LLVMValueRef
-ac_build_permlane16(struct ac_llvm_context *ctx, LLVMValueRef src, uint64_t sel,
- bool exchange_rows, bool bound_ctrl)
-{
- LLVMTypeRef src_type = LLVMTypeOf(src);
- src = ac_to_integer(ctx, src);
- unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
- LLVMValueRef ret;
- if (bits > 32) {
- assert(bits % 32 == 0);
- LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32);
- LLVMValueRef src_vector =
- LLVMBuildBitCast(ctx->builder, src, vec_type, "");
- ret = LLVMGetUndef(vec_type);
- for (unsigned i = 0; i < bits / 32; i++) {
- src = LLVMBuildExtractElement(ctx->builder, src_vector,
- LLVMConstInt(ctx->i32, i,
- 0), "");
- LLVMValueRef ret_comp =
- _ac_build_permlane16(ctx, src, sel,
- exchange_rows,
- bound_ctrl);
- ret = LLVMBuildInsertElement(ctx->builder, ret,
- ret_comp,
- LLVMConstInt(ctx->i32, i,
- 0), "");
- }
- } else {
- ret = _ac_build_permlane16(ctx, src, sel, exchange_rows,
- bound_ctrl);
- }
- return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
-}
-
-static inline unsigned
-ds_pattern_bitmode(unsigned and_mask, unsigned or_mask, unsigned xor_mask)
-{
- assert(and_mask < 32 && or_mask < 32 && xor_mask < 32);
- return and_mask | (or_mask << 5) | (xor_mask << 10);
-}
-
-static LLVMValueRef
-_ac_build_ds_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned mask)
-{
- LLVMTypeRef src_type = LLVMTypeOf(src);
- LLVMValueRef ret;
-
- src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
-
- ret = ac_build_intrinsic(ctx, "llvm.amdgcn.ds.swizzle", ctx->i32,
- (LLVMValueRef []) {
- src, LLVMConstInt(ctx->i32, mask, 0) },
- 2, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
-
- return LLVMBuildTrunc(ctx->builder, ret, src_type, "");
-}
-
-LLVMValueRef
-ac_build_ds_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned mask)
-{
- LLVMTypeRef src_type = LLVMTypeOf(src);
- src = ac_to_integer(ctx, src);
- unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
- LLVMValueRef ret;
- if (bits > 32) {
- assert(bits % 32 == 0);
- LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32);
- LLVMValueRef src_vector =
- LLVMBuildBitCast(ctx->builder, src, vec_type, "");
- ret = LLVMGetUndef(vec_type);
- for (unsigned i = 0; i < bits / 32; i++) {
- src = LLVMBuildExtractElement(ctx->builder, src_vector,
- LLVMConstInt(ctx->i32, i,
- 0), "");
- LLVMValueRef ret_comp = _ac_build_ds_swizzle(ctx, src,
- mask);
- ret = LLVMBuildInsertElement(ctx->builder, ret,
- ret_comp,
- LLVMConstInt(ctx->i32, i,
- 0), "");
- }
- } else {
- ret = _ac_build_ds_swizzle(ctx, src, mask);
- }
- return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
-}
-
-static LLVMValueRef
-ac_build_wwm(struct ac_llvm_context *ctx, LLVMValueRef src)
-{
- LLVMTypeRef src_type = LLVMTypeOf(src);
- unsigned bitsize = ac_get_elem_bits(ctx, src_type);
- char name[32], type[8];
- LLVMValueRef ret;
-
- src = ac_to_integer(ctx, src);
-
- if (bitsize < 32)
- src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
-
- ac_build_type_name_for_intr(LLVMTypeOf(src), type, sizeof(type));
- snprintf(name, sizeof(name), "llvm.amdgcn.wwm.%s", type);
- ret = ac_build_intrinsic(ctx, name, LLVMTypeOf(src),
- (LLVMValueRef []) { src }, 1,
- AC_FUNC_ATTR_READNONE);
-
- if (bitsize < 32)
- ret = LLVMBuildTrunc(ctx->builder, ret,
- ac_to_integer_type(ctx, src_type), "");
-
- return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
-}
-
-static LLVMValueRef
-ac_build_set_inactive(struct ac_llvm_context *ctx, LLVMValueRef src,
- LLVMValueRef inactive)
-{
- char name[33], type[8];
- LLVMTypeRef src_type = LLVMTypeOf(src);
- unsigned bitsize = ac_get_elem_bits(ctx, src_type);
- src = ac_to_integer(ctx, src);
- inactive = ac_to_integer(ctx, inactive);
-
- if (bitsize < 32) {
- src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
- inactive = LLVMBuildZExt(ctx->builder, inactive, ctx->i32, "");
- }
-
- ac_build_type_name_for_intr(LLVMTypeOf(src), type, sizeof(type));
- snprintf(name, sizeof(name), "llvm.amdgcn.set.inactive.%s", type);
- LLVMValueRef ret =
- ac_build_intrinsic(ctx, name,
- LLVMTypeOf(src), (LLVMValueRef []) {
- src, inactive }, 2,
- AC_FUNC_ATTR_READNONE |
- AC_FUNC_ATTR_CONVERGENT);
- if (bitsize < 32)
- ret = LLVMBuildTrunc(ctx->builder, ret, src_type, "");
-
- return ret;
-}
-
-static LLVMValueRef
-get_reduction_identity(struct ac_llvm_context *ctx, nir_op op, unsigned type_size)
-{
- if (type_size == 1) {
- switch (op) {
- case nir_op_iadd: return ctx->i8_0;
- case nir_op_imul: return ctx->i8_1;
- case nir_op_imin: return LLVMConstInt(ctx->i8, INT8_MAX, 0);
- case nir_op_umin: return LLVMConstInt(ctx->i8, UINT8_MAX, 0);
- case nir_op_imax: return LLVMConstInt(ctx->i8, INT8_MIN, 0);
- case nir_op_umax: return ctx->i8_0;
- case nir_op_iand: return LLVMConstInt(ctx->i8, -1, 0);
- case nir_op_ior: return ctx->i8_0;
- case nir_op_ixor: return ctx->i8_0;
- default:
- unreachable("bad reduction intrinsic");
- }
- } else if (type_size == 2) {
- switch (op) {
- case nir_op_iadd: return ctx->i16_0;
- case nir_op_fadd: return ctx->f16_0;
- case nir_op_imul: return ctx->i16_1;
- case nir_op_fmul: return ctx->f16_1;
- case nir_op_imin: return LLVMConstInt(ctx->i16, INT16_MAX, 0);
- case nir_op_umin: return LLVMConstInt(ctx->i16, UINT16_MAX, 0);
- case nir_op_fmin: return LLVMConstReal(ctx->f16, INFINITY);
- case nir_op_imax: return LLVMConstInt(ctx->i16, INT16_MIN, 0);
- case nir_op_umax: return ctx->i16_0;
- case nir_op_fmax: return LLVMConstReal(ctx->f16, -INFINITY);
- case nir_op_iand: return LLVMConstInt(ctx->i16, -1, 0);
- case nir_op_ior: return ctx->i16_0;
- case nir_op_ixor: return ctx->i16_0;
- default:
- unreachable("bad reduction intrinsic");
- }
- } else if (type_size == 4) {
- switch (op) {
- case nir_op_iadd: return ctx->i32_0;
- case nir_op_fadd: return ctx->f32_0;
- case nir_op_imul: return ctx->i32_1;
- case nir_op_fmul: return ctx->f32_1;
- case nir_op_imin: return LLVMConstInt(ctx->i32, INT32_MAX, 0);
- case nir_op_umin: return LLVMConstInt(ctx->i32, UINT32_MAX, 0);
- case nir_op_fmin: return LLVMConstReal(ctx->f32, INFINITY);
- case nir_op_imax: return LLVMConstInt(ctx->i32, INT32_MIN, 0);
- case nir_op_umax: return ctx->i32_0;
- case nir_op_fmax: return LLVMConstReal(ctx->f32, -INFINITY);
- case nir_op_iand: return LLVMConstInt(ctx->i32, -1, 0);
- case nir_op_ior: return ctx->i32_0;
- case nir_op_ixor: return ctx->i32_0;
- default:
- unreachable("bad reduction intrinsic");
- }
- } else { /* type_size == 64bit */
- switch (op) {
- case nir_op_iadd: return ctx->i64_0;
- case nir_op_fadd: return ctx->f64_0;
- case nir_op_imul: return ctx->i64_1;
- case nir_op_fmul: return ctx->f64_1;
- case nir_op_imin: return LLVMConstInt(ctx->i64, INT64_MAX, 0);
- case nir_op_umin: return LLVMConstInt(ctx->i64, UINT64_MAX, 0);
- case nir_op_fmin: return LLVMConstReal(ctx->f64, INFINITY);
- case nir_op_imax: return LLVMConstInt(ctx->i64, INT64_MIN, 0);
- case nir_op_umax: return ctx->i64_0;
- case nir_op_fmax: return LLVMConstReal(ctx->f64, -INFINITY);
- case nir_op_iand: return LLVMConstInt(ctx->i64, -1, 0);
- case nir_op_ior: return ctx->i64_0;
- case nir_op_ixor: return ctx->i64_0;
- default:
- unreachable("bad reduction intrinsic");
- }
- }
-}
-
-static LLVMValueRef
-ac_build_alu_op(struct ac_llvm_context *ctx, LLVMValueRef lhs, LLVMValueRef rhs, nir_op op)
-{
- bool _64bit = ac_get_type_size(LLVMTypeOf(lhs)) == 8;
- bool _32bit = ac_get_type_size(LLVMTypeOf(lhs)) == 4;
- switch (op) {
- case nir_op_iadd: return LLVMBuildAdd(ctx->builder, lhs, rhs, "");
- case nir_op_fadd: return LLVMBuildFAdd(ctx->builder, lhs, rhs, "");
- case nir_op_imul: return LLVMBuildMul(ctx->builder, lhs, rhs, "");
- case nir_op_fmul: return LLVMBuildFMul(ctx->builder, lhs, rhs, "");
- case nir_op_imin: return LLVMBuildSelect(ctx->builder,
- LLVMBuildICmp(ctx->builder, LLVMIntSLT, lhs, rhs, ""),
- lhs, rhs, "");
- case nir_op_umin: return LLVMBuildSelect(ctx->builder,
- LLVMBuildICmp(ctx->builder, LLVMIntULT, lhs, rhs, ""),
- lhs, rhs, "");
- case nir_op_fmin: return ac_build_intrinsic(ctx,
- _64bit ? "llvm.minnum.f64" : _32bit ? "llvm.minnum.f32" : "llvm.minnum.f16",
- _64bit ? ctx->f64 : _32bit ? ctx->f32 : ctx->f16,
- (LLVMValueRef[]){lhs, rhs}, 2, AC_FUNC_ATTR_READNONE);
- case nir_op_imax: return LLVMBuildSelect(ctx->builder,
- LLVMBuildICmp(ctx->builder, LLVMIntSGT, lhs, rhs, ""),
- lhs, rhs, "");
- case nir_op_umax: return LLVMBuildSelect(ctx->builder,
- LLVMBuildICmp(ctx->builder, LLVMIntUGT, lhs, rhs, ""),
- lhs, rhs, "");
- case nir_op_fmax: return ac_build_intrinsic(ctx,
- _64bit ? "llvm.maxnum.f64" : _32bit ? "llvm.maxnum.f32" : "llvm.maxnum.f16",
- _64bit ? ctx->f64 : _32bit ? ctx->f32 : ctx->f16,
- (LLVMValueRef[]){lhs, rhs}, 2, AC_FUNC_ATTR_READNONE);
- case nir_op_iand: return LLVMBuildAnd(ctx->builder, lhs, rhs, "");
- case nir_op_ior: return LLVMBuildOr(ctx->builder, lhs, rhs, "");
- case nir_op_ixor: return LLVMBuildXor(ctx->builder, lhs, rhs, "");
- default:
- unreachable("bad reduction intrinsic");
- }
+static inline enum dpp_ctrl dpp_quad_perm(unsigned lane0, unsigned lane1, unsigned lane2,
+ unsigned lane3)
+{
+ assert(lane0 < 4 && lane1 < 4 && lane2 < 4 && lane3 < 4);
+ return _dpp_quad_perm | lane0 | (lane1 << 2) | (lane2 << 4) | (lane3 << 6);
+}
+
+static inline enum dpp_ctrl dpp_row_sl(unsigned amount)
+{
+ assert(amount > 0 && amount < 16);
+ return _dpp_row_sl | amount;
+}
+
+static inline enum dpp_ctrl dpp_row_sr(unsigned amount)
+{
+ assert(amount > 0 && amount < 16);
+ return _dpp_row_sr | amount;
+}
+
+static LLVMValueRef _ac_build_dpp(struct ac_llvm_context *ctx, LLVMValueRef old, LLVMValueRef src,
+ enum dpp_ctrl dpp_ctrl, unsigned row_mask, unsigned bank_mask,
+ bool bound_ctrl)
+{
+ LLVMTypeRef type = LLVMTypeOf(src);
+ LLVMValueRef res;
+
+ old = LLVMBuildZExt(ctx->builder, old, ctx->i32, "");
+ src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
+
+ res = ac_build_intrinsic(
+ ctx, "llvm.amdgcn.update.dpp.i32", ctx->i32,
+ (LLVMValueRef[]){old, src, LLVMConstInt(ctx->i32, dpp_ctrl, 0),
+ LLVMConstInt(ctx->i32, row_mask, 0), LLVMConstInt(ctx->i32, bank_mask, 0),
+ LLVMConstInt(ctx->i1, bound_ctrl, 0)},
+ 6, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
+
+ return LLVMBuildTrunc(ctx->builder, res, type, "");
+}
+
+static LLVMValueRef ac_build_dpp(struct ac_llvm_context *ctx, LLVMValueRef old, LLVMValueRef src,
+ enum dpp_ctrl dpp_ctrl, unsigned row_mask, unsigned bank_mask,
+ bool bound_ctrl)
+{
+ LLVMTypeRef src_type = LLVMTypeOf(src);
+ src = ac_to_integer(ctx, src);
+ old = ac_to_integer(ctx, old);
+ unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
+ LLVMValueRef ret;
+ if (bits > 32) {
+ assert(bits % 32 == 0);
+ LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32);
+ LLVMValueRef src_vector = LLVMBuildBitCast(ctx->builder, src, vec_type, "");
+ LLVMValueRef old_vector = LLVMBuildBitCast(ctx->builder, old, vec_type, "");
+ ret = LLVMGetUndef(vec_type);
+ for (unsigned i = 0; i < bits / 32; i++) {
+ src = LLVMBuildExtractElement(ctx->builder, src_vector, LLVMConstInt(ctx->i32, i, 0), "");
+ old = LLVMBuildExtractElement(ctx->builder, old_vector, LLVMConstInt(ctx->i32, i, 0), "");
+ LLVMValueRef ret_comp =
+ _ac_build_dpp(ctx, old, src, dpp_ctrl, row_mask, bank_mask, bound_ctrl);
+ ret =
+ LLVMBuildInsertElement(ctx->builder, ret, ret_comp, LLVMConstInt(ctx->i32, i, 0), "");
+ }
+ } else {
+ ret = _ac_build_dpp(ctx, old, src, dpp_ctrl, row_mask, bank_mask, bound_ctrl);
+ }
+ return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
+}
+
+static LLVMValueRef _ac_build_permlane16(struct ac_llvm_context *ctx, LLVMValueRef src,
+ uint64_t sel, bool exchange_rows, bool bound_ctrl)
+{
+ LLVMTypeRef type = LLVMTypeOf(src);
+ LLVMValueRef result;
+
+ src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
+
+ LLVMValueRef args[6] = {
+ src,
+ src,
+ LLVMConstInt(ctx->i32, sel, false),
+ LLVMConstInt(ctx->i32, sel >> 32, false),
+ ctx->i1true, /* fi */
+ bound_ctrl ? ctx->i1true : ctx->i1false,
+ };
+
+ result =
+ ac_build_intrinsic(ctx, exchange_rows ? "llvm.amdgcn.permlanex16" : "llvm.amdgcn.permlane16",
+ ctx->i32, args, 6, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
+
+ return LLVMBuildTrunc(ctx->builder, result, type, "");
+}
+
+static LLVMValueRef ac_build_permlane16(struct ac_llvm_context *ctx, LLVMValueRef src, uint64_t sel,
+ bool exchange_rows, bool bound_ctrl)
+{
+ LLVMTypeRef src_type = LLVMTypeOf(src);
+ src = ac_to_integer(ctx, src);
+ unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
+ LLVMValueRef ret;
+ if (bits > 32) {
+ assert(bits % 32 == 0);
+ LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32);
+ LLVMValueRef src_vector = LLVMBuildBitCast(ctx->builder, src, vec_type, "");
+ ret = LLVMGetUndef(vec_type);
+ for (unsigned i = 0; i < bits / 32; i++) {
+ src = LLVMBuildExtractElement(ctx->builder, src_vector, LLVMConstInt(ctx->i32, i, 0), "");
+ LLVMValueRef ret_comp = _ac_build_permlane16(ctx, src, sel, exchange_rows, bound_ctrl);
+ ret =
+ LLVMBuildInsertElement(ctx->builder, ret, ret_comp, LLVMConstInt(ctx->i32, i, 0), "");
+ }
+ } else {
+ ret = _ac_build_permlane16(ctx, src, sel, exchange_rows, bound_ctrl);
+ }
+ return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
+}
+
+static inline unsigned ds_pattern_bitmode(unsigned and_mask, unsigned or_mask, unsigned xor_mask)
+{
+ assert(and_mask < 32 && or_mask < 32 && xor_mask < 32);
+ return and_mask | (or_mask << 5) | (xor_mask << 10);
+}
+
+static LLVMValueRef _ac_build_ds_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src,
+ unsigned mask)
+{
+ LLVMTypeRef src_type = LLVMTypeOf(src);
+ LLVMValueRef ret;
+
+ src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
+
+ ret = ac_build_intrinsic(ctx, "llvm.amdgcn.ds.swizzle", ctx->i32,
+ (LLVMValueRef[]){src, LLVMConstInt(ctx->i32, mask, 0)}, 2,
+ AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
+
+ return LLVMBuildTrunc(ctx->builder, ret, src_type, "");
+}
+
+LLVMValueRef ac_build_ds_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned mask)
+{
+ LLVMTypeRef src_type = LLVMTypeOf(src);
+ src = ac_to_integer(ctx, src);
+ unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
+ LLVMValueRef ret;
+ if (bits > 32) {
+ assert(bits % 32 == 0);
+ LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32);
+ LLVMValueRef src_vector = LLVMBuildBitCast(ctx->builder, src, vec_type, "");
+ ret = LLVMGetUndef(vec_type);
+ for (unsigned i = 0; i < bits / 32; i++) {
+ src = LLVMBuildExtractElement(ctx->builder, src_vector, LLVMConstInt(ctx->i32, i, 0), "");
+ LLVMValueRef ret_comp = _ac_build_ds_swizzle(ctx, src, mask);
+ ret =
+ LLVMBuildInsertElement(ctx->builder, ret, ret_comp, LLVMConstInt(ctx->i32, i, 0), "");
+ }
+ } else {
+ ret = _ac_build_ds_swizzle(ctx, src, mask);
+ }
+ return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
+}
+
+static LLVMValueRef ac_build_wwm(struct ac_llvm_context *ctx, LLVMValueRef src)
+{
+ LLVMTypeRef src_type = LLVMTypeOf(src);
+ unsigned bitsize = ac_get_elem_bits(ctx, src_type);
+ char name[32], type[8];
+ LLVMValueRef ret;
+
+ src = ac_to_integer(ctx, src);
+
+ if (bitsize < 32)
+ src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
+
+ ac_build_type_name_for_intr(LLVMTypeOf(src), type, sizeof(type));
+ snprintf(name, sizeof(name), "llvm.amdgcn.wwm.%s", type);
+ ret = ac_build_intrinsic(ctx, name, LLVMTypeOf(src), (LLVMValueRef[]){src}, 1,
+ AC_FUNC_ATTR_READNONE);
+
+ if (bitsize < 32)
+ ret = LLVMBuildTrunc(ctx->builder, ret, ac_to_integer_type(ctx, src_type), "");
+
+ return LLVMBuildBitCast(ctx->builder, ret, src_type, "");
+}
+
+static LLVMValueRef ac_build_set_inactive(struct ac_llvm_context *ctx, LLVMValueRef src,
+ LLVMValueRef inactive)
+{
+ char name[33], type[8];
+ LLVMTypeRef src_type = LLVMTypeOf(src);
+ unsigned bitsize = ac_get_elem_bits(ctx, src_type);
+ src = ac_to_integer(ctx, src);
+ inactive = ac_to_integer(ctx, inactive);
+
+ if (bitsize < 32) {
+ src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
+ inactive = LLVMBuildZExt(ctx->builder, inactive, ctx->i32, "");
+ }
+
+ ac_build_type_name_for_intr(LLVMTypeOf(src), type, sizeof(type));
+ snprintf(name, sizeof(name), "llvm.amdgcn.set.inactive.%s", type);
+ LLVMValueRef ret =
+ ac_build_intrinsic(ctx, name, LLVMTypeOf(src), (LLVMValueRef[]){src, inactive}, 2,
+ AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
+ if (bitsize < 32)
+ ret = LLVMBuildTrunc(ctx->builder, ret, src_type, "");
+
+ return ret;
+}
+
+static LLVMValueRef get_reduction_identity(struct ac_llvm_context *ctx, nir_op op,
+ unsigned type_size)
+{
+ if (type_size == 1) {
+ switch (op) {
+ case nir_op_iadd:
+ return ctx->i8_0;
+ case nir_op_imul:
+ return ctx->i8_1;
+ case nir_op_imin:
+ return LLVMConstInt(ctx->i8, INT8_MAX, 0);
+ case nir_op_umin:
+ return LLVMConstInt(ctx->i8, UINT8_MAX, 0);
+ case nir_op_imax:
+ return LLVMConstInt(ctx->i8, INT8_MIN, 0);
+ case nir_op_umax:
+ return ctx->i8_0;
+ case nir_op_iand:
+ return LLVMConstInt(ctx->i8, -1, 0);
+ case nir_op_ior:
+ return ctx->i8_0;
+ case nir_op_ixor:
+ return ctx->i8_0;
+ default:
+ unreachable("bad reduction intrinsic");
+ }
+ } else if (type_size == 2) {
+ switch (op) {
+ case nir_op_iadd:
+ return ctx->i16_0;
+ case nir_op_fadd:
+ return ctx->f16_0;
+ case nir_op_imul:
+ return ctx->i16_1;
+ case nir_op_fmul:
+ return ctx->f16_1;
+ case nir_op_imin:
+ return LLVMConstInt(ctx->i16, INT16_MAX, 0);
+ case nir_op_umin:
+ return LLVMConstInt(ctx->i16, UINT16_MAX, 0);
+ case nir_op_fmin:
+ return LLVMConstReal(ctx->f16, INFINITY);
+ case nir_op_imax:
+ return LLVMConstInt(ctx->i16, INT16_MIN, 0);
+ case nir_op_umax:
+ return ctx->i16_0;
+ case nir_op_fmax:
+ return LLVMConstReal(ctx->f16, -INFINITY);
+ case nir_op_iand:
+ return LLVMConstInt(ctx->i16, -1, 0);
+ case nir_op_ior:
+ return ctx->i16_0;
+ case nir_op_ixor:
+ return ctx->i16_0;
+ default:
+ unreachable("bad reduction intrinsic");
+ }
+ } else if (type_size == 4) {
+ switch (op) {
+ case nir_op_iadd:
+ return ctx->i32_0;
+ case nir_op_fadd:
+ return ctx->f32_0;
+ case nir_op_imul:
+ return ctx->i32_1;
+ case nir_op_fmul:
+ return ctx->f32_1;
+ case nir_op_imin:
+ return LLVMConstInt(ctx->i32, INT32_MAX, 0);
+ case nir_op_umin:
+ return LLVMConstInt(ctx->i32, UINT32_MAX, 0);
+ case nir_op_fmin:
+ return LLVMConstReal(ctx->f32, INFINITY);
+ case nir_op_imax:
+ return LLVMConstInt(ctx->i32, INT32_MIN, 0);
+ case nir_op_umax:
+ return ctx->i32_0;
+ case nir_op_fmax:
+ return LLVMConstReal(ctx->f32, -INFINITY);
+ case nir_op_iand:
+ return LLVMConstInt(ctx->i32, -1, 0);
+ case nir_op_ior:
+ return ctx->i32_0;
+ case nir_op_ixor:
+ return ctx->i32_0;
+ default:
+ unreachable("bad reduction intrinsic");
+ }
+ } else { /* type_size == 64bit */
+ switch (op) {
+ case nir_op_iadd:
+ return ctx->i64_0;
+ case nir_op_fadd:
+ return ctx->f64_0;
+ case nir_op_imul:
+ return ctx->i64_1;
+ case nir_op_fmul:
+ return ctx->f64_1;
+ case nir_op_imin:
+ return LLVMConstInt(ctx->i64, INT64_MAX, 0);
+ case nir_op_umin:
+ return LLVMConstInt(ctx->i64, UINT64_MAX, 0);
+ case nir_op_fmin:
+ return LLVMConstReal(ctx->f64, INFINITY);
+ case nir_op_imax:
+ return LLVMConstInt(ctx->i64, INT64_MIN, 0);
+ case nir_op_umax:
+ return ctx->i64_0;
+ case nir_op_fmax:
+ return LLVMConstReal(ctx->f64, -INFINITY);
+ case nir_op_iand:
+ return LLVMConstInt(ctx->i64, -1, 0);
+ case nir_op_ior:
+ return ctx->i64_0;
+ case nir_op_ixor:
+ return ctx->i64_0;
+ default:
+ unreachable("bad reduction intrinsic");
+ }
+ }
+}
+
+static LLVMValueRef ac_build_alu_op(struct ac_llvm_context *ctx, LLVMValueRef lhs, LLVMValueRef rhs,
+ nir_op op)
+{
+ bool _64bit = ac_get_type_size(LLVMTypeOf(lhs)) == 8;
+ bool _32bit = ac_get_type_size(LLVMTypeOf(lhs)) == 4;
+ switch (op) {
+ case nir_op_iadd:
+ return LLVMBuildAdd(ctx->builder, lhs, rhs, "");
+ case nir_op_fadd:
+ return LLVMBuildFAdd(ctx->builder, lhs, rhs, "");
+ case nir_op_imul:
+ return LLVMBuildMul(ctx->builder, lhs, rhs, "");
+ case nir_op_fmul:
+ return LLVMBuildFMul(ctx->builder, lhs, rhs, "");
+ case nir_op_imin:
+ return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder, LLVMIntSLT, lhs, rhs, ""),
+ lhs, rhs, "");
+ case nir_op_umin:
+ return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder, LLVMIntULT, lhs, rhs, ""),
+ lhs, rhs, "");
+ case nir_op_fmin:
+ return ac_build_intrinsic(
+ ctx, _64bit ? "llvm.minnum.f64" : _32bit ? "llvm.minnum.f32" : "llvm.minnum.f16",
+ _64bit ? ctx->f64 : _32bit ? ctx->f32 : ctx->f16, (LLVMValueRef[]){lhs, rhs}, 2,
+ AC_FUNC_ATTR_READNONE);
+ case nir_op_imax:
+ return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder, LLVMIntSGT, lhs, rhs, ""),
+ lhs, rhs, "");
+ case nir_op_umax:
+ return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder, LLVMIntUGT, lhs, rhs, ""),
+ lhs, rhs, "");
+ case nir_op_fmax:
+ return ac_build_intrinsic(
+ ctx, _64bit ? "llvm.maxnum.f64" : _32bit ? "llvm.maxnum.f32" : "llvm.maxnum.f16",
+ _64bit ? ctx->f64 : _32bit ? ctx->f32 : ctx->f16, (LLVMValueRef[]){lhs, rhs}, 2,
+ AC_FUNC_ATTR_READNONE);
+ case nir_op_iand:
+ return LLVMBuildAnd(ctx->builder, lhs, rhs, "");
+ case nir_op_ior:
+ return LLVMBuildOr(ctx->builder, lhs, rhs, "");
+ case nir_op_ixor:
+ return LLVMBuildXor(ctx->builder, lhs, rhs, "");
+ default:
+ unreachable("bad reduction intrinsic");
+ }
}
/**
* prefix of this many threads
* \return src, shifted 1 lane up, and identity shifted into lane 0.
*/
-static LLVMValueRef
-ac_wavefront_shift_right_1(struct ac_llvm_context *ctx, LLVMValueRef src,
- LLVMValueRef identity, unsigned maxprefix)
-{
- if (ctx->chip_class >= GFX10) {
- /* wavefront shift_right by 1 on GFX10 (emulate dpp_wf_sr1) */
- LLVMValueRef active, tmp1, tmp2;
- LLVMValueRef tid = ac_get_thread_id(ctx);
-
- tmp1 = ac_build_dpp(ctx, identity, src, dpp_row_sr(1), 0xf, 0xf, false);
-
- tmp2 = ac_build_permlane16(ctx, src, (uint64_t)~0, true, false);
-
- if (maxprefix > 32) {
- active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid,
- LLVMConstInt(ctx->i32, 32, false), "");
-
- tmp2 = LLVMBuildSelect(ctx->builder, active,
- ac_build_readlane(ctx, src,
- LLVMConstInt(ctx->i32, 31, false)),
- tmp2, "");
-
- active = LLVMBuildOr(ctx->builder, active,
- LLVMBuildICmp(ctx->builder, LLVMIntEQ,
- LLVMBuildAnd(ctx->builder, tid,
- LLVMConstInt(ctx->i32, 0x1f, false), ""),
- LLVMConstInt(ctx->i32, 0x10, false), ""), "");
- return LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
- } else if (maxprefix > 16) {
- active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid,
- LLVMConstInt(ctx->i32, 16, false), "");
-
- return LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
- }
- } else if (ctx->chip_class >= GFX8) {
- return ac_build_dpp(ctx, identity, src, dpp_wf_sr1, 0xf, 0xf, false);
- }
-
- /* wavefront shift_right by 1 on SI/CI */
- LLVMValueRef active, tmp1, tmp2;
- LLVMValueRef tid = ac_get_thread_id(ctx);
- tmp1 = ac_build_ds_swizzle(ctx, src, (1 << 15) | dpp_quad_perm(0, 0, 1, 2));
- tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x18, 0x03, 0x00));
- active = LLVMBuildICmp(ctx->builder, LLVMIntEQ,
- LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0x7, 0), ""),
- LLVMConstInt(ctx->i32, 0x4, 0), "");
- tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
- tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x10, 0x07, 0x00));
- active = LLVMBuildICmp(ctx->builder, LLVMIntEQ,
- LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0xf, 0), ""),
- LLVMConstInt(ctx->i32, 0x8, 0), "");
- tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
- tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x00, 0x0f, 0x00));
- active = LLVMBuildICmp(ctx->builder, LLVMIntEQ,
- LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0x1f, 0), ""),
- LLVMConstInt(ctx->i32, 0x10, 0), "");
- tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
- tmp2 = ac_build_readlane(ctx, src, LLVMConstInt(ctx->i32, 31, 0));
- active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, LLVMConstInt(ctx->i32, 32, 0), "");
- tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
- active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, LLVMConstInt(ctx->i32, 0, 0), "");
- return LLVMBuildSelect(ctx->builder, active, identity, tmp1, "");
+static LLVMValueRef ac_wavefront_shift_right_1(struct ac_llvm_context *ctx, LLVMValueRef src,
+ LLVMValueRef identity, unsigned maxprefix)
+{
+ if (ctx->chip_class >= GFX10) {
+ /* wavefront shift_right by 1 on GFX10 (emulate dpp_wf_sr1) */
+ LLVMValueRef active, tmp1, tmp2;
+ LLVMValueRef tid = ac_get_thread_id(ctx);
+
+ tmp1 = ac_build_dpp(ctx, identity, src, dpp_row_sr(1), 0xf, 0xf, false);
+
+ tmp2 = ac_build_permlane16(ctx, src, (uint64_t)~0, true, false);
+
+ if (maxprefix > 32) {
+ active =
+ LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, LLVMConstInt(ctx->i32, 32, false), "");
+
+ tmp2 = LLVMBuildSelect(ctx->builder, active,
+ ac_build_readlane(ctx, src, LLVMConstInt(ctx->i32, 31, false)),
+ tmp2, "");
+
+ active = LLVMBuildOr(
+ ctx->builder, active,
+ LLVMBuildICmp(ctx->builder, LLVMIntEQ,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0x1f, false), ""),
+ LLVMConstInt(ctx->i32, 0x10, false), ""),
+ "");
+ return LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
+ } else if (maxprefix > 16) {
+ active =
+ LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, LLVMConstInt(ctx->i32, 16, false), "");
+
+ return LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
+ }
+ } else if (ctx->chip_class >= GFX8) {
+ return ac_build_dpp(ctx, identity, src, dpp_wf_sr1, 0xf, 0xf, false);
+ }
+
+ /* wavefront shift_right by 1 on SI/CI */
+ LLVMValueRef active, tmp1, tmp2;
+ LLVMValueRef tid = ac_get_thread_id(ctx);
+ tmp1 = ac_build_ds_swizzle(ctx, src, (1 << 15) | dpp_quad_perm(0, 0, 1, 2));
+ tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x18, 0x03, 0x00));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntEQ,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0x7, 0), ""),
+ LLVMConstInt(ctx->i32, 0x4, 0), "");
+ tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
+ tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x10, 0x07, 0x00));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntEQ,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0xf, 0), ""),
+ LLVMConstInt(ctx->i32, 0x8, 0), "");
+ tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
+ tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x00, 0x0f, 0x00));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntEQ,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0x1f, 0), ""),
+ LLVMConstInt(ctx->i32, 0x10, 0), "");
+ tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
+ tmp2 = ac_build_readlane(ctx, src, LLVMConstInt(ctx->i32, 31, 0));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, LLVMConstInt(ctx->i32, 32, 0), "");
+ tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, "");
+ active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, LLVMConstInt(ctx->i32, 0, 0), "");
+ return LLVMBuildSelect(ctx->builder, active, identity, tmp1, "");
}
/**
* \param maxprefix specifies that the result only needs to be correct for a
* prefix of this many threads
*/
-static LLVMValueRef
-ac_build_scan(struct ac_llvm_context *ctx, nir_op op, LLVMValueRef src, LLVMValueRef identity,
- unsigned maxprefix, bool inclusive)
-{
- LLVMValueRef result, tmp;
-
- if (!inclusive)
- src = ac_wavefront_shift_right_1(ctx, src, identity, maxprefix);
-
- result = src;
-
- if (ctx->chip_class <= GFX7) {
- assert(maxprefix == 64);
- LLVMValueRef tid = ac_get_thread_id(ctx);
- LLVMValueRef active;
- tmp = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x1e, 0x00, 0x00));
- active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
- LLVMBuildAnd(ctx->builder, tid, ctx->i32_1, ""),
- ctx->i32_0, "");
- tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
- result = ac_build_alu_op(ctx, result, tmp, op);
- tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1c, 0x01, 0x00));
- active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
- LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 2, 0), ""),
- ctx->i32_0, "");
- tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
- result = ac_build_alu_op(ctx, result, tmp, op);
- tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x18, 0x03, 0x00));
- active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
- LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 4, 0), ""),
- ctx->i32_0, "");
- tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
- result = ac_build_alu_op(ctx, result, tmp, op);
- tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x10, 0x07, 0x00));
- active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
- LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 8, 0), ""),
- ctx->i32_0, "");
- tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
- result = ac_build_alu_op(ctx, result, tmp, op);
- tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x00, 0x0f, 0x00));
- active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
- LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 16, 0), ""),
- ctx->i32_0, "");
- tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
- result = ac_build_alu_op(ctx, result, tmp, op);
- tmp = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, 0));
- active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
- LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 32, 0), ""),
- ctx->i32_0, "");
- tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
- result = ac_build_alu_op(ctx, result, tmp, op);
- return result;
- }
-
- if (maxprefix <= 1)
- return result;
- tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(1), 0xf, 0xf, false);
- result = ac_build_alu_op(ctx, result, tmp, op);
- if (maxprefix <= 2)
- return result;
- tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(2), 0xf, 0xf, false);
- result = ac_build_alu_op(ctx, result, tmp, op);
- if (maxprefix <= 3)
- return result;
- tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(3), 0xf, 0xf, false);
- result = ac_build_alu_op(ctx, result, tmp, op);
- if (maxprefix <= 4)
- return result;
- tmp = ac_build_dpp(ctx, identity, result, dpp_row_sr(4), 0xf, 0xe, false);
- result = ac_build_alu_op(ctx, result, tmp, op);
- if (maxprefix <= 8)
- return result;
- tmp = ac_build_dpp(ctx, identity, result, dpp_row_sr(8), 0xf, 0xc, false);
- result = ac_build_alu_op(ctx, result, tmp, op);
- if (maxprefix <= 16)
- return result;
-
- if (ctx->chip_class >= GFX10) {
- LLVMValueRef tid = ac_get_thread_id(ctx);
- LLVMValueRef active;
-
- tmp = ac_build_permlane16(ctx, result, ~(uint64_t)0, true, false);
-
- active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
- LLVMBuildAnd(ctx->builder, tid,
- LLVMConstInt(ctx->i32, 16, false), ""),
- ctx->i32_0, "");
-
- tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
-
- result = ac_build_alu_op(ctx, result, tmp, op);
-
- if (maxprefix <= 32)
- return result;
-
- tmp = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, false));
-
- active = LLVMBuildICmp(ctx->builder, LLVMIntUGE, tid,
- LLVMConstInt(ctx->i32, 32, false), "");
-
- tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
-
- result = ac_build_alu_op(ctx, result, tmp, op);
- return result;
- }
-
- tmp = ac_build_dpp(ctx, identity, result, dpp_row_bcast15, 0xa, 0xf, false);
- result = ac_build_alu_op(ctx, result, tmp, op);
- if (maxprefix <= 32)
- return result;
- tmp = ac_build_dpp(ctx, identity, result, dpp_row_bcast31, 0xc, 0xf, false);
- result = ac_build_alu_op(ctx, result, tmp, op);
- return result;
-}
-
-LLVMValueRef
-ac_build_inclusive_scan(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op)
-{
- LLVMValueRef result;
-
- if (LLVMTypeOf(src) == ctx->i1 && op == nir_op_iadd) {
- LLVMBuilderRef builder = ctx->builder;
- src = LLVMBuildZExt(builder, src, ctx->i32, "");
- result = ac_build_ballot(ctx, src);
- result = ac_build_mbcnt(ctx, result);
- result = LLVMBuildAdd(builder, result, src, "");
- return result;
- }
-
- ac_build_optimization_barrier(ctx, &src);
-
- LLVMValueRef identity =
- get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src)));
- result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity),
- LLVMTypeOf(identity), "");
- result = ac_build_scan(ctx, op, result, identity, ctx->wave_size, true);
-
- return ac_build_wwm(ctx, result);
-}
-
-LLVMValueRef
-ac_build_exclusive_scan(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op)
-{
- LLVMValueRef result;
-
- if (LLVMTypeOf(src) == ctx->i1 && op == nir_op_iadd) {
- LLVMBuilderRef builder = ctx->builder;
- src = LLVMBuildZExt(builder, src, ctx->i32, "");
- result = ac_build_ballot(ctx, src);
- result = ac_build_mbcnt(ctx, result);
- return result;
- }
-
- ac_build_optimization_barrier(ctx, &src);
-
- LLVMValueRef identity =
- get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src)));
- result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity),
- LLVMTypeOf(identity), "");
- result = ac_build_scan(ctx, op, result, identity, ctx->wave_size, false);
-
- return ac_build_wwm(ctx, result);
-}
-
-LLVMValueRef
-ac_build_reduce(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op, unsigned cluster_size)
-{
- if (cluster_size == 1) return src;
- ac_build_optimization_barrier(ctx, &src);
- LLVMValueRef result, swap;
- LLVMValueRef identity = get_reduction_identity(ctx, op,
- ac_get_type_size(LLVMTypeOf(src)));
- result = LLVMBuildBitCast(ctx->builder,
- ac_build_set_inactive(ctx, src, identity),
- LLVMTypeOf(identity), "");
- swap = ac_build_quad_swizzle(ctx, result, 1, 0, 3, 2);
- result = ac_build_alu_op(ctx, result, swap, op);
- if (cluster_size == 2) return ac_build_wwm(ctx, result);
-
- swap = ac_build_quad_swizzle(ctx, result, 2, 3, 0, 1);
- result = ac_build_alu_op(ctx, result, swap, op);
- if (cluster_size == 4) return ac_build_wwm(ctx, result);
-
- if (ctx->chip_class >= GFX8)
- swap = ac_build_dpp(ctx, identity, result, dpp_row_half_mirror, 0xf, 0xf, false);
- else
- swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x04));
- result = ac_build_alu_op(ctx, result, swap, op);
- if (cluster_size == 8) return ac_build_wwm(ctx, result);
-
- if (ctx->chip_class >= GFX8)
- swap = ac_build_dpp(ctx, identity, result, dpp_row_mirror, 0xf, 0xf, false);
- else
- swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x08));
- result = ac_build_alu_op(ctx, result, swap, op);
- if (cluster_size == 16) return ac_build_wwm(ctx, result);
-
- if (ctx->chip_class >= GFX10)
- swap = ac_build_permlane16(ctx, result, 0, true, false);
- else if (ctx->chip_class >= GFX8 && cluster_size != 32)
- swap = ac_build_dpp(ctx, identity, result, dpp_row_bcast15, 0xa, 0xf, false);
- else
- swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x10));
- result = ac_build_alu_op(ctx, result, swap, op);
- if (cluster_size == 32) return ac_build_wwm(ctx, result);
-
- if (ctx->chip_class >= GFX8) {
- if (ctx->wave_size == 64) {
- if (ctx->chip_class >= GFX10)
- swap = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, false));
- else
- swap = ac_build_dpp(ctx, identity, result, dpp_row_bcast31, 0xc, 0xf, false);
- result = ac_build_alu_op(ctx, result, swap, op);
- result = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 63, 0));
- }
-
- return ac_build_wwm(ctx, result);
- } else {
- swap = ac_build_readlane(ctx, result, ctx->i32_0);
- result = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 32, 0));
- result = ac_build_alu_op(ctx, result, swap, op);
- return ac_build_wwm(ctx, result);
- }
+static LLVMValueRef ac_build_scan(struct ac_llvm_context *ctx, nir_op op, LLVMValueRef src,
+ LLVMValueRef identity, unsigned maxprefix, bool inclusive)
+{
+ LLVMValueRef result, tmp;
+
+ if (!inclusive)
+ src = ac_wavefront_shift_right_1(ctx, src, identity, maxprefix);
+
+ result = src;
+
+ if (ctx->chip_class <= GFX7) {
+ assert(maxprefix == 64);
+ LLVMValueRef tid = ac_get_thread_id(ctx);
+ LLVMValueRef active;
+ tmp = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x1e, 0x00, 0x00));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
+ LLVMBuildAnd(ctx->builder, tid, ctx->i32_1, ""), ctx->i32_0, "");
+ tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1c, 0x01, 0x00));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 2, 0), ""),
+ ctx->i32_0, "");
+ tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x18, 0x03, 0x00));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 4, 0), ""),
+ ctx->i32_0, "");
+ tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x10, 0x07, 0x00));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 8, 0), ""),
+ ctx->i32_0, "");
+ tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x00, 0x0f, 0x00));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 16, 0), ""),
+ ctx->i32_0, "");
+ tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ tmp = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, 0));
+ active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 32, 0), ""),
+ ctx->i32_0, "");
+ tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ return result;
+ }
+
+ if (maxprefix <= 1)
+ return result;
+ tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(1), 0xf, 0xf, false);
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ if (maxprefix <= 2)
+ return result;
+ tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(2), 0xf, 0xf, false);
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ if (maxprefix <= 3)
+ return result;
+ tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(3), 0xf, 0xf, false);
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ if (maxprefix <= 4)
+ return result;
+ tmp = ac_build_dpp(ctx, identity, result, dpp_row_sr(4), 0xf, 0xe, false);
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ if (maxprefix <= 8)
+ return result;
+ tmp = ac_build_dpp(ctx, identity, result, dpp_row_sr(8), 0xf, 0xc, false);
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ if (maxprefix <= 16)
+ return result;
+
+ if (ctx->chip_class >= GFX10) {
+ LLVMValueRef tid = ac_get_thread_id(ctx);
+ LLVMValueRef active;
+
+ tmp = ac_build_permlane16(ctx, result, ~(uint64_t)0, true, false);
+
+ active = LLVMBuildICmp(ctx->builder, LLVMIntNE,
+ LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 16, false), ""),
+ ctx->i32_0, "");
+
+ tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
+
+ result = ac_build_alu_op(ctx, result, tmp, op);
+
+ if (maxprefix <= 32)
+ return result;
+
+ tmp = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, false));
+
+ active = LLVMBuildICmp(ctx->builder, LLVMIntUGE, tid, LLVMConstInt(ctx->i32, 32, false), "");
+
+ tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, "");
+
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ return result;
+ }
+
+ tmp = ac_build_dpp(ctx, identity, result, dpp_row_bcast15, 0xa, 0xf, false);
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ if (maxprefix <= 32)
+ return result;
+ tmp = ac_build_dpp(ctx, identity, result, dpp_row_bcast31, 0xc, 0xf, false);
+ result = ac_build_alu_op(ctx, result, tmp, op);
+ return result;
+}
+
+LLVMValueRef ac_build_inclusive_scan(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op)
+{
+ LLVMValueRef result;
+
+ if (LLVMTypeOf(src) == ctx->i1 && op == nir_op_iadd) {
+ LLVMBuilderRef builder = ctx->builder;
+ src = LLVMBuildZExt(builder, src, ctx->i32, "");
+ result = ac_build_ballot(ctx, src);
+ result = ac_build_mbcnt(ctx, result);
+ result = LLVMBuildAdd(builder, result, src, "");
+ return result;
+ }
+
+ ac_build_optimization_barrier(ctx, &src);
+
+ LLVMValueRef identity = get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src)));
+ result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity),
+ LLVMTypeOf(identity), "");
+ result = ac_build_scan(ctx, op, result, identity, ctx->wave_size, true);
+
+ return ac_build_wwm(ctx, result);
+}
+
+LLVMValueRef ac_build_exclusive_scan(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op)
+{
+ LLVMValueRef result;
+
+ if (LLVMTypeOf(src) == ctx->i1 && op == nir_op_iadd) {
+ LLVMBuilderRef builder = ctx->builder;
+ src = LLVMBuildZExt(builder, src, ctx->i32, "");
+ result = ac_build_ballot(ctx, src);
+ result = ac_build_mbcnt(ctx, result);
+ return result;
+ }
+
+ ac_build_optimization_barrier(ctx, &src);
+
+ LLVMValueRef identity = get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src)));
+ result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity),
+ LLVMTypeOf(identity), "");
+ result = ac_build_scan(ctx, op, result, identity, ctx->wave_size, false);
+
+ return ac_build_wwm(ctx, result);
+}
+
+LLVMValueRef ac_build_reduce(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op,
+ unsigned cluster_size)
+{
+ if (cluster_size == 1)
+ return src;
+ ac_build_optimization_barrier(ctx, &src);
+ LLVMValueRef result, swap;
+ LLVMValueRef identity = get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src)));
+ result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity),
+ LLVMTypeOf(identity), "");
+ swap = ac_build_quad_swizzle(ctx, result, 1, 0, 3, 2);
+ result = ac_build_alu_op(ctx, result, swap, op);
+ if (cluster_size == 2)
+ return ac_build_wwm(ctx, result);
+
+ swap = ac_build_quad_swizzle(ctx, result, 2, 3, 0, 1);
+ result = ac_build_alu_op(ctx, result, swap, op);
+ if (cluster_size == 4)
+ return ac_build_wwm(ctx, result);
+
+ if (ctx->chip_class >= GFX8)
+ swap = ac_build_dpp(ctx, identity, result, dpp_row_half_mirror, 0xf, 0xf, false);
+ else
+ swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x04));
+ result = ac_build_alu_op(ctx, result, swap, op);
+ if (cluster_size == 8)
+ return ac_build_wwm(ctx, result);
+
+ if (ctx->chip_class >= GFX8)
+ swap = ac_build_dpp(ctx, identity, result, dpp_row_mirror, 0xf, 0xf, false);
+ else
+ swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x08));
+ result = ac_build_alu_op(ctx, result, swap, op);
+ if (cluster_size == 16)
+ return ac_build_wwm(ctx, result);
+
+ if (ctx->chip_class >= GFX10)
+ swap = ac_build_permlane16(ctx, result, 0, true, false);
+ else if (ctx->chip_class >= GFX8 && cluster_size != 32)
+ swap = ac_build_dpp(ctx, identity, result, dpp_row_bcast15, 0xa, 0xf, false);
+ else
+ swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x10));
+ result = ac_build_alu_op(ctx, result, swap, op);
+ if (cluster_size == 32)
+ return ac_build_wwm(ctx, result);
+
+ if (ctx->chip_class >= GFX8) {
+ if (ctx->wave_size == 64) {
+ if (ctx->chip_class >= GFX10)
+ swap = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, false));
+ else
+ swap = ac_build_dpp(ctx, identity, result, dpp_row_bcast31, 0xc, 0xf, false);
+ result = ac_build_alu_op(ctx, result, swap, op);
+ result = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 63, 0));
+ }
+
+ return ac_build_wwm(ctx, result);
+ } else {
+ swap = ac_build_readlane(ctx, result, ctx->i32_0);
+ result = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 32, 0));
+ result = ac_build_alu_op(ctx, result, swap, op);
+ return ac_build_wwm(ctx, result);
+ }
}
/**
* The source value must be present in the highest lane of the wave, and the
* highest lane must be live.
*/
-void
-ac_build_wg_wavescan_top(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
+void ac_build_wg_wavescan_top(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
{
- if (ws->maxwaves <= 1)
- return;
+ if (ws->maxwaves <= 1)
+ return;
- const LLVMValueRef last_lane = LLVMConstInt(ctx->i32, ctx->wave_size - 1, false);
- LLVMBuilderRef builder = ctx->builder;
- LLVMValueRef tid = ac_get_thread_id(ctx);
- LLVMValueRef tmp;
+ const LLVMValueRef last_lane = LLVMConstInt(ctx->i32, ctx->wave_size - 1, false);
+ LLVMBuilderRef builder = ctx->builder;
+ LLVMValueRef tid = ac_get_thread_id(ctx);
+ LLVMValueRef tmp;
- tmp = LLVMBuildICmp(builder, LLVMIntEQ, tid, last_lane, "");
- ac_build_ifcc(ctx, tmp, 1000);
- LLVMBuildStore(builder, ws->src, LLVMBuildGEP(builder, ws->scratch, &ws->waveidx, 1, ""));
- ac_build_endif(ctx, 1000);
+ tmp = LLVMBuildICmp(builder, LLVMIntEQ, tid, last_lane, "");
+ ac_build_ifcc(ctx, tmp, 1000);
+ LLVMBuildStore(builder, ws->src, LLVMBuildGEP(builder, ws->scratch, &ws->waveidx, 1, ""));
+ ac_build_endif(ctx, 1000);
}
/**
*
* The caller must place a barrier between the top and bottom halves.
*/
-void
-ac_build_wg_wavescan_bottom(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
-{
- const LLVMTypeRef type = LLVMTypeOf(ws->src);
- const LLVMValueRef identity =
- get_reduction_identity(ctx, ws->op, ac_get_type_size(type));
-
- if (ws->maxwaves <= 1) {
- ws->result_reduce = ws->src;
- ws->result_inclusive = ws->src;
- ws->result_exclusive = identity;
- return;
- }
- assert(ws->maxwaves <= 32);
-
- LLVMBuilderRef builder = ctx->builder;
- LLVMValueRef tid = ac_get_thread_id(ctx);
- LLVMBasicBlockRef bbs[2];
- LLVMValueRef phivalues_scan[2];
- LLVMValueRef tmp, tmp2;
-
- bbs[0] = LLVMGetInsertBlock(builder);
- phivalues_scan[0] = LLVMGetUndef(type);
-
- if (ws->enable_reduce)
- tmp = LLVMBuildICmp(builder, LLVMIntULT, tid, ws->numwaves, "");
- else if (ws->enable_inclusive)
- tmp = LLVMBuildICmp(builder, LLVMIntULE, tid, ws->waveidx, "");
- else
- tmp = LLVMBuildICmp(builder, LLVMIntULT, tid, ws->waveidx, "");
- ac_build_ifcc(ctx, tmp, 1001);
- {
- tmp = LLVMBuildLoad(builder, LLVMBuildGEP(builder, ws->scratch, &tid, 1, ""), "");
-
- ac_build_optimization_barrier(ctx, &tmp);
-
- bbs[1] = LLVMGetInsertBlock(builder);
- phivalues_scan[1] = ac_build_scan(ctx, ws->op, tmp, identity, ws->maxwaves, true);
- }
- ac_build_endif(ctx, 1001);
-
- const LLVMValueRef scan = ac_build_phi(ctx, type, 2, phivalues_scan, bbs);
-
- if (ws->enable_reduce) {
- tmp = LLVMBuildSub(builder, ws->numwaves, ctx->i32_1, "");
- ws->result_reduce = ac_build_readlane(ctx, scan, tmp);
- }
- if (ws->enable_inclusive)
- ws->result_inclusive = ac_build_readlane(ctx, scan, ws->waveidx);
- if (ws->enable_exclusive) {
- tmp = LLVMBuildSub(builder, ws->waveidx, ctx->i32_1, "");
- tmp = ac_build_readlane(ctx, scan, tmp);
- tmp2 = LLVMBuildICmp(builder, LLVMIntEQ, ws->waveidx, ctx->i32_0, "");
- ws->result_exclusive = LLVMBuildSelect(builder, tmp2, identity, tmp, "");
- }
+void ac_build_wg_wavescan_bottom(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
+{
+ const LLVMTypeRef type = LLVMTypeOf(ws->src);
+ const LLVMValueRef identity = get_reduction_identity(ctx, ws->op, ac_get_type_size(type));
+
+ if (ws->maxwaves <= 1) {
+ ws->result_reduce = ws->src;
+ ws->result_inclusive = ws->src;
+ ws->result_exclusive = identity;
+ return;
+ }
+ assert(ws->maxwaves <= 32);
+
+ LLVMBuilderRef builder = ctx->builder;
+ LLVMValueRef tid = ac_get_thread_id(ctx);
+ LLVMBasicBlockRef bbs[2];
+ LLVMValueRef phivalues_scan[2];
+ LLVMValueRef tmp, tmp2;
+
+ bbs[0] = LLVMGetInsertBlock(builder);
+ phivalues_scan[0] = LLVMGetUndef(type);
+
+ if (ws->enable_reduce)
+ tmp = LLVMBuildICmp(builder, LLVMIntULT, tid, ws->numwaves, "");
+ else if (ws->enable_inclusive)
+ tmp = LLVMBuildICmp(builder, LLVMIntULE, tid, ws->waveidx, "");
+ else
+ tmp = LLVMBuildICmp(builder, LLVMIntULT, tid, ws->waveidx, "");
+ ac_build_ifcc(ctx, tmp, 1001);
+ {
+ tmp = LLVMBuildLoad(builder, LLVMBuildGEP(builder, ws->scratch, &tid, 1, ""), "");
+
+ ac_build_optimization_barrier(ctx, &tmp);
+
+ bbs[1] = LLVMGetInsertBlock(builder);
+ phivalues_scan[1] = ac_build_scan(ctx, ws->op, tmp, identity, ws->maxwaves, true);
+ }
+ ac_build_endif(ctx, 1001);
+
+ const LLVMValueRef scan = ac_build_phi(ctx, type, 2, phivalues_scan, bbs);
+
+ if (ws->enable_reduce) {
+ tmp = LLVMBuildSub(builder, ws->numwaves, ctx->i32_1, "");
+ ws->result_reduce = ac_build_readlane(ctx, scan, tmp);
+ }
+ if (ws->enable_inclusive)
+ ws->result_inclusive = ac_build_readlane(ctx, scan, ws->waveidx);
+ if (ws->enable_exclusive) {
+ tmp = LLVMBuildSub(builder, ws->waveidx, ctx->i32_1, "");
+ tmp = ac_build_readlane(ctx, scan, tmp);
+ tmp2 = LLVMBuildICmp(builder, LLVMIntEQ, ws->waveidx, ctx->i32_0, "");
+ ws->result_exclusive = LLVMBuildSelect(builder, tmp2, identity, tmp, "");
+ }
}
/**
* of the workgroup are live. (This requirement cannot easily be relaxed in a
* useful manner because of the barrier in the algorithm.)
*/
-void
-ac_build_wg_wavescan(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
+void ac_build_wg_wavescan(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
{
- ac_build_wg_wavescan_top(ctx, ws);
- ac_build_s_barrier(ctx);
- ac_build_wg_wavescan_bottom(ctx, ws);
+ ac_build_wg_wavescan_top(ctx, ws);
+ ac_build_s_barrier(ctx);
+ ac_build_wg_wavescan_bottom(ctx, ws);
}
/**
*
* All lanes must be active when this code runs.
*/
-void
-ac_build_wg_scan_top(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
-{
- if (ws->enable_exclusive) {
- ws->extra = ac_build_exclusive_scan(ctx, ws->src, ws->op);
- if (LLVMTypeOf(ws->src) == ctx->i1 && ws->op == nir_op_iadd)
- ws->src = LLVMBuildZExt(ctx->builder, ws->src, ctx->i32, "");
- ws->src = ac_build_alu_op(ctx, ws->extra, ws->src, ws->op);
- } else {
- ws->src = ac_build_inclusive_scan(ctx, ws->src, ws->op);
- }
-
- bool enable_inclusive = ws->enable_inclusive;
- bool enable_exclusive = ws->enable_exclusive;
- ws->enable_inclusive = false;
- ws->enable_exclusive = ws->enable_exclusive || enable_inclusive;
- ac_build_wg_wavescan_top(ctx, ws);
- ws->enable_inclusive = enable_inclusive;
- ws->enable_exclusive = enable_exclusive;
+void ac_build_wg_scan_top(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
+{
+ if (ws->enable_exclusive) {
+ ws->extra = ac_build_exclusive_scan(ctx, ws->src, ws->op);
+ if (LLVMTypeOf(ws->src) == ctx->i1 && ws->op == nir_op_iadd)
+ ws->src = LLVMBuildZExt(ctx->builder, ws->src, ctx->i32, "");
+ ws->src = ac_build_alu_op(ctx, ws->extra, ws->src, ws->op);
+ } else {
+ ws->src = ac_build_inclusive_scan(ctx, ws->src, ws->op);
+ }
+
+ bool enable_inclusive = ws->enable_inclusive;
+ bool enable_exclusive = ws->enable_exclusive;
+ ws->enable_inclusive = false;
+ ws->enable_exclusive = ws->enable_exclusive || enable_inclusive;
+ ac_build_wg_wavescan_top(ctx, ws);
+ ws->enable_inclusive = enable_inclusive;
+ ws->enable_exclusive = enable_exclusive;
}
/**
*
* The caller must place a barrier between the top and bottom halves.
*/
-void
-ac_build_wg_scan_bottom(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
+void ac_build_wg_scan_bottom(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
{
- bool enable_inclusive = ws->enable_inclusive;
- bool enable_exclusive = ws->enable_exclusive;
- ws->enable_inclusive = false;
- ws->enable_exclusive = ws->enable_exclusive || enable_inclusive;
- ac_build_wg_wavescan_bottom(ctx, ws);
- ws->enable_inclusive = enable_inclusive;
- ws->enable_exclusive = enable_exclusive;
+ bool enable_inclusive = ws->enable_inclusive;
+ bool enable_exclusive = ws->enable_exclusive;
+ ws->enable_inclusive = false;
+ ws->enable_exclusive = ws->enable_exclusive || enable_inclusive;
+ ac_build_wg_wavescan_bottom(ctx, ws);
+ ws->enable_inclusive = enable_inclusive;
+ ws->enable_exclusive = enable_exclusive;
- /* ws->result_reduce is already the correct value */
- if (ws->enable_inclusive)
- ws->result_inclusive = ac_build_alu_op(ctx, ws->result_inclusive, ws->src, ws->op);
- if (ws->enable_exclusive)
- ws->result_exclusive = ac_build_alu_op(ctx, ws->result_exclusive, ws->extra, ws->op);
+ /* ws->result_reduce is already the correct value */
+ if (ws->enable_inclusive)
+ ws->result_inclusive = ac_build_alu_op(ctx, ws->result_inclusive, ws->src, ws->op);
+ if (ws->enable_exclusive)
+ ws->result_exclusive = ac_build_alu_op(ctx, ws->result_exclusive, ws->extra, ws->op);
}
/**
* The caller must ensure that all lanes are active when this code runs
* (WWM is insufficient!), because there is an implied barrier.
*/
-void
-ac_build_wg_scan(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
-{
- ac_build_wg_scan_top(ctx, ws);
- ac_build_s_barrier(ctx);
- ac_build_wg_scan_bottom(ctx, ws);
-}
-
-LLVMValueRef
-ac_build_quad_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src,
- unsigned lane0, unsigned lane1, unsigned lane2, unsigned lane3)
-{
- unsigned mask = dpp_quad_perm(lane0, lane1, lane2, lane3);
- if (ctx->chip_class >= GFX8) {
- return ac_build_dpp(ctx, src, src, mask, 0xf, 0xf, false);
- } else {
- return ac_build_ds_swizzle(ctx, src, (1 << 15) | mask);
- }
-}
-
-LLVMValueRef
-ac_build_shuffle(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef index)
-{
- LLVMTypeRef type = LLVMTypeOf(src);
- LLVMValueRef result;
-
- index = LLVMBuildMul(ctx->builder, index, LLVMConstInt(ctx->i32, 4, 0), "");
- src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
-
- result = ac_build_intrinsic(ctx, "llvm.amdgcn.ds.bpermute", ctx->i32,
- (LLVMValueRef []) {index, src}, 2,
- AC_FUNC_ATTR_READNONE |
- AC_FUNC_ATTR_CONVERGENT);
- return LLVMBuildTrunc(ctx->builder, result, type, "");
-}
-
-LLVMValueRef
-ac_build_frexp_exp(struct ac_llvm_context *ctx, LLVMValueRef src0,
- unsigned bitsize)
-{
- LLVMTypeRef type;
- char *intr;
-
- if (bitsize == 16) {
- intr = "llvm.amdgcn.frexp.exp.i16.f16";
- type = ctx->i16;
- } else if (bitsize == 32) {
- intr = "llvm.amdgcn.frexp.exp.i32.f32";
- type = ctx->i32;
- } else {
- intr = "llvm.amdgcn.frexp.exp.i32.f64";
- type = ctx->i32;
- }
-
- LLVMValueRef params[] = {
- src0,
- };
- return ac_build_intrinsic(ctx, intr, type, params, 1,
- AC_FUNC_ATTR_READNONE);
-}
-LLVMValueRef
-ac_build_frexp_mant(struct ac_llvm_context *ctx, LLVMValueRef src0,
- unsigned bitsize)
-{
- LLVMTypeRef type;
- char *intr;
-
- if (bitsize == 16) {
- intr = "llvm.amdgcn.frexp.mant.f16";
- type = ctx->f16;
- } else if (bitsize == 32) {
- intr = "llvm.amdgcn.frexp.mant.f32";
- type = ctx->f32;
- } else {
- intr = "llvm.amdgcn.frexp.mant.f64";
- type = ctx->f64;
- }
-
- LLVMValueRef params[] = {
- src0,
- };
- return ac_build_intrinsic(ctx, intr, type, params, 1,
- AC_FUNC_ATTR_READNONE);
-}
-
-LLVMValueRef
-ac_build_canonicalize(struct ac_llvm_context *ctx, LLVMValueRef src0,
- unsigned bitsize)
-{
- LLVMTypeRef type;
- char *intr;
-
- if (bitsize == 16) {
- intr = "llvm.canonicalize.f16";
- type = ctx->f16;
- } else if (bitsize == 32) {
- intr = "llvm.canonicalize.f32";
- type = ctx->f32;
- } else {
- intr = "llvm.canonicalize.f64";
- type = ctx->f64;
- }
-
- LLVMValueRef params[] = {
- src0,
- };
- return ac_build_intrinsic(ctx, intr, type, params, 1,
- AC_FUNC_ATTR_READNONE);
+void ac_build_wg_scan(struct ac_llvm_context *ctx, struct ac_wg_scan *ws)
+{
+ ac_build_wg_scan_top(ctx, ws);
+ ac_build_s_barrier(ctx);
+ ac_build_wg_scan_bottom(ctx, ws);
+}
+
+LLVMValueRef ac_build_quad_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned lane0,
+ unsigned lane1, unsigned lane2, unsigned lane3)
+{
+ unsigned mask = dpp_quad_perm(lane0, lane1, lane2, lane3);
+ if (ctx->chip_class >= GFX8) {
+ return ac_build_dpp(ctx, src, src, mask, 0xf, 0xf, false);
+ } else {
+ return ac_build_ds_swizzle(ctx, src, (1 << 15) | mask);
+ }
+}
+
+LLVMValueRef ac_build_shuffle(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef index)
+{
+ LLVMTypeRef type = LLVMTypeOf(src);
+ LLVMValueRef result;
+
+ index = LLVMBuildMul(ctx->builder, index, LLVMConstInt(ctx->i32, 4, 0), "");
+ src = LLVMBuildZExt(ctx->builder, src, ctx->i32, "");
+
+ result =
+ ac_build_intrinsic(ctx, "llvm.amdgcn.ds.bpermute", ctx->i32, (LLVMValueRef[]){index, src}, 2,
+ AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
+ return LLVMBuildTrunc(ctx->builder, result, type, "");
+}
+
+LLVMValueRef ac_build_frexp_exp(struct ac_llvm_context *ctx, LLVMValueRef src0, unsigned bitsize)
+{
+ LLVMTypeRef type;
+ char *intr;
+
+ if (bitsize == 16) {
+ intr = "llvm.amdgcn.frexp.exp.i16.f16";
+ type = ctx->i16;
+ } else if (bitsize == 32) {
+ intr = "llvm.amdgcn.frexp.exp.i32.f32";
+ type = ctx->i32;
+ } else {
+ intr = "llvm.amdgcn.frexp.exp.i32.f64";
+ type = ctx->i32;
+ }
+
+ LLVMValueRef params[] = {
+ src0,
+ };
+ return ac_build_intrinsic(ctx, intr, type, params, 1, AC_FUNC_ATTR_READNONE);
+}
+LLVMValueRef ac_build_frexp_mant(struct ac_llvm_context *ctx, LLVMValueRef src0, unsigned bitsize)
+{
+ LLVMTypeRef type;
+ char *intr;
+
+ if (bitsize == 16) {
+ intr = "llvm.amdgcn.frexp.mant.f16";
+ type = ctx->f16;
+ } else if (bitsize == 32) {
+ intr = "llvm.amdgcn.frexp.mant.f32";
+ type = ctx->f32;
+ } else {
+ intr = "llvm.amdgcn.frexp.mant.f64";
+ type = ctx->f64;
+ }
+
+ LLVMValueRef params[] = {
+ src0,
+ };
+ return ac_build_intrinsic(ctx, intr, type, params, 1, AC_FUNC_ATTR_READNONE);
+}
+
+LLVMValueRef ac_build_canonicalize(struct ac_llvm_context *ctx, LLVMValueRef src0, unsigned bitsize)
+{
+ LLVMTypeRef type;
+ char *intr;
+
+ if (bitsize == 16) {
+ intr = "llvm.canonicalize.f16";
+ type = ctx->f16;
+ } else if (bitsize == 32) {
+ intr = "llvm.canonicalize.f32";
+ type = ctx->f32;
+ } else {
+ intr = "llvm.canonicalize.f64";
+ type = ctx->f64;
+ }
+
+ LLVMValueRef params[] = {
+ src0,
+ };
+ return ac_build_intrinsic(ctx, intr, type, params, 1, AC_FUNC_ATTR_READNONE);
}
/*
* and works out the X and Y derivatives.
* it returns DDX(I), DDX(J), DDY(I), DDY(J).
*/
-LLVMValueRef
-ac_build_ddxy_interp(struct ac_llvm_context *ctx, LLVMValueRef interp_ij)
-{
- LLVMValueRef result[4], a;
- unsigned i;
-
- for (i = 0; i < 2; i++) {
- a = LLVMBuildExtractElement(ctx->builder, interp_ij,
- LLVMConstInt(ctx->i32, i, false), "");
- result[i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 1, a);
- result[2+i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 2, a);
- }
- return ac_build_gather_values(ctx, result, 4);
-}
-
-LLVMValueRef
-ac_build_load_helper_invocation(struct ac_llvm_context *ctx)
-{
- LLVMValueRef result = ac_build_intrinsic(ctx, "llvm.amdgcn.ps.live",
- ctx->i1, NULL, 0,
- AC_FUNC_ATTR_READNONE);
- result = LLVMBuildNot(ctx->builder, result, "");
- return LLVMBuildSExt(ctx->builder, result, ctx->i32, "");
-}
-
-LLVMValueRef ac_build_call(struct ac_llvm_context *ctx, LLVMValueRef func,
- LLVMValueRef *args, unsigned num_args)
-{
- LLVMValueRef ret = LLVMBuildCall(ctx->builder, func, args, num_args, "");
- LLVMSetInstructionCallConv(ret, LLVMGetFunctionCallConv(func));
- return ret;
-}
-
-void
-ac_export_mrt_z(struct ac_llvm_context *ctx, LLVMValueRef depth,
- LLVMValueRef stencil, LLVMValueRef samplemask,
- struct ac_export_args *args)
-{
- unsigned mask = 0;
- unsigned format = ac_get_spi_shader_z_format(depth != NULL,
- stencil != NULL,
- samplemask != NULL);
-
- assert(depth || stencil || samplemask);
-
- memset(args, 0, sizeof(*args));
-
- args->valid_mask = 1; /* whether the EXEC mask is valid */
- args->done = 1; /* DONE bit */
-
- /* Specify the target we are exporting */
- args->target = V_008DFC_SQ_EXP_MRTZ;
-
- args->compr = 0; /* COMP flag */
- args->out[0] = LLVMGetUndef(ctx->f32); /* R, depth */
- args->out[1] = LLVMGetUndef(ctx->f32); /* G, stencil test val[0:7], stencil op val[8:15] */
- args->out[2] = LLVMGetUndef(ctx->f32); /* B, sample mask */
- args->out[3] = LLVMGetUndef(ctx->f32); /* A, alpha to mask */
-
- if (format == V_028710_SPI_SHADER_UINT16_ABGR) {
- assert(!depth);
- args->compr = 1; /* COMPR flag */
-
- if (stencil) {
- /* Stencil should be in X[23:16]. */
- stencil = ac_to_integer(ctx, stencil);
- stencil = LLVMBuildShl(ctx->builder, stencil,
- LLVMConstInt(ctx->i32, 16, 0), "");
- args->out[0] = ac_to_float(ctx, stencil);
- mask |= 0x3;
- }
- if (samplemask) {
- /* SampleMask should be in Y[15:0]. */
- args->out[1] = samplemask;
- mask |= 0xc;
- }
- } else {
- if (depth) {
- args->out[0] = depth;
- mask |= 0x1;
- }
- if (stencil) {
- args->out[1] = stencil;
- mask |= 0x2;
- }
- if (samplemask) {
- args->out[2] = samplemask;
- mask |= 0x4;
- }
- }
-
- /* GFX6 (except OLAND and HAINAN) has a bug that it only looks
- * at the X writemask component. */
- if (ctx->chip_class == GFX6 &&
- ctx->family != CHIP_OLAND &&
- ctx->family != CHIP_HAINAN)
- mask |= 0x1;
-
- /* Specify which components to enable */
- args->enabled_channels = mask;
+LLVMValueRef ac_build_ddxy_interp(struct ac_llvm_context *ctx, LLVMValueRef interp_ij)
+{
+ LLVMValueRef result[4], a;
+ unsigned i;
+
+ for (i = 0; i < 2; i++) {
+ a = LLVMBuildExtractElement(ctx->builder, interp_ij, LLVMConstInt(ctx->i32, i, false), "");
+ result[i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 1, a);
+ result[2 + i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 2, a);
+ }
+ return ac_build_gather_values(ctx, result, 4);
+}
+
+LLVMValueRef ac_build_load_helper_invocation(struct ac_llvm_context *ctx)
+{
+ LLVMValueRef result =
+ ac_build_intrinsic(ctx, "llvm.amdgcn.ps.live", ctx->i1, NULL, 0, AC_FUNC_ATTR_READNONE);
+ result = LLVMBuildNot(ctx->builder, result, "");
+ return LLVMBuildSExt(ctx->builder, result, ctx->i32, "");
+}
+
+LLVMValueRef ac_build_is_helper_invocation(struct ac_llvm_context *ctx)
+{
+ if (!ctx->postponed_kill)
+ return ac_build_load_helper_invocation(ctx);
+
+ /* !(exact && postponed) */
+ LLVMValueRef exact =
+ ac_build_intrinsic(ctx, "llvm.amdgcn.ps.live", ctx->i1, NULL, 0, AC_FUNC_ATTR_READNONE);
+
+ LLVMValueRef postponed = LLVMBuildLoad(ctx->builder, ctx->postponed_kill, "");
+ LLVMValueRef result = LLVMBuildAnd(ctx->builder, exact, postponed, "");
+
+ return LLVMBuildSelect(ctx->builder, result, ctx->i32_0,
+ LLVMConstInt(ctx->i32, 0xFFFFFFFF, false), "");
+}
+
+LLVMValueRef ac_build_call(struct ac_llvm_context *ctx, LLVMValueRef func, LLVMValueRef *args,
+ unsigned num_args)
+{
+ LLVMValueRef ret = LLVMBuildCall(ctx->builder, func, args, num_args, "");
+ LLVMSetInstructionCallConv(ret, LLVMGetFunctionCallConv(func));
+ return ret;
+}
+
+void ac_export_mrt_z(struct ac_llvm_context *ctx, LLVMValueRef depth, LLVMValueRef stencil,
+ LLVMValueRef samplemask, struct ac_export_args *args)
+{
+ unsigned mask = 0;
+ unsigned format = ac_get_spi_shader_z_format(depth != NULL, stencil != NULL, samplemask != NULL);
+
+ assert(depth || stencil || samplemask);
+
+ memset(args, 0, sizeof(*args));
+
+ args->valid_mask = 1; /* whether the EXEC mask is valid */
+ args->done = 1; /* DONE bit */
+
+ /* Specify the target we are exporting */
+ args->target = V_008DFC_SQ_EXP_MRTZ;
+
+ args->compr = 0; /* COMP flag */
+ args->out[0] = LLVMGetUndef(ctx->f32); /* R, depth */
+ args->out[1] = LLVMGetUndef(ctx->f32); /* G, stencil test val[0:7], stencil op val[8:15] */
+ args->out[2] = LLVMGetUndef(ctx->f32); /* B, sample mask */
+ args->out[3] = LLVMGetUndef(ctx->f32); /* A, alpha to mask */
+
+ if (format == V_028710_SPI_SHADER_UINT16_ABGR) {
+ assert(!depth);
+ args->compr = 1; /* COMPR flag */
+
+ if (stencil) {
+ /* Stencil should be in X[23:16]. */
+ stencil = ac_to_integer(ctx, stencil);
+ stencil = LLVMBuildShl(ctx->builder, stencil, LLVMConstInt(ctx->i32, 16, 0), "");
+ args->out[0] = ac_to_float(ctx, stencil);
+ mask |= 0x3;
+ }
+ if (samplemask) {
+ /* SampleMask should be in Y[15:0]. */
+ args->out[1] = samplemask;
+ mask |= 0xc;
+ }
+ } else {
+ if (depth) {
+ args->out[0] = depth;
+ mask |= 0x1;
+ }
+ if (stencil) {
+ args->out[1] = stencil;
+ mask |= 0x2;
+ }
+ if (samplemask) {
+ args->out[2] = samplemask;
+ mask |= 0x4;
+ }
+ }
+
+ /* GFX6 (except OLAND and HAINAN) has a bug that it only looks
+ * at the X writemask component. */
+ if (ctx->chip_class == GFX6 && ctx->family != CHIP_OLAND && ctx->family != CHIP_HAINAN)
+ mask |= 0x1;
+
+ /* Specify which components to enable */
+ args->enabled_channels = mask;
}
/* Send GS Alloc Req message from the first wave of the group to SPI.
* - bits 12..22: primitives in group
*/
void ac_build_sendmsg_gs_alloc_req(struct ac_llvm_context *ctx, LLVMValueRef wave_id,
- LLVMValueRef vtx_cnt, LLVMValueRef prim_cnt)
-{
- LLVMBuilderRef builder = ctx->builder;
- LLVMValueRef tmp;
-
- ac_build_ifcc(ctx, LLVMBuildICmp(builder, LLVMIntEQ, wave_id, ctx->i32_0, ""), 5020);
-
- tmp = LLVMBuildShl(builder, prim_cnt, LLVMConstInt(ctx->i32, 12, false),"");
- tmp = LLVMBuildOr(builder, tmp, vtx_cnt, "");
- ac_build_sendmsg(ctx, AC_SENDMSG_GS_ALLOC_REQ, tmp);
-
- ac_build_endif(ctx, 5020);
-}
-
-LLVMValueRef ac_pack_prim_export(struct ac_llvm_context *ctx,
- const struct ac_ngg_prim *prim)
-{
- /* The prim export format is:
- * - bits 0..8: index 0
- * - bit 9: edge flag 0
- * - bits 10..18: index 1
- * - bit 19: edge flag 1
- * - bits 20..28: index 2
- * - bit 29: edge flag 2
- * - bit 31: null primitive (skip)
- */
- LLVMBuilderRef builder = ctx->builder;
- LLVMValueRef tmp = LLVMBuildZExt(builder, prim->isnull, ctx->i32, "");
- LLVMValueRef result = LLVMBuildShl(builder, tmp, LLVMConstInt(ctx->i32, 31, false), "");
-
- for (unsigned i = 0; i < prim->num_vertices; ++i) {
- tmp = LLVMBuildShl(builder, prim->index[i],
- LLVMConstInt(ctx->i32, 10 * i, false), "");
- result = LLVMBuildOr(builder, result, tmp, "");
- tmp = LLVMBuildZExt(builder, prim->edgeflag[i], ctx->i32, "");
- tmp = LLVMBuildShl(builder, tmp,
- LLVMConstInt(ctx->i32, 10 * i + 9, false), "");
- result = LLVMBuildOr(builder, result, tmp, "");
- }
- return result;
-}
-
-void ac_build_export_prim(struct ac_llvm_context *ctx,
- const struct ac_ngg_prim *prim)
-{
- struct ac_export_args args;
-
- if (prim->passthrough) {
- args.out[0] = prim->passthrough;
- } else {
- args.out[0] = ac_pack_prim_export(ctx, prim);
- }
-
- args.out[0] = LLVMBuildBitCast(ctx->builder, args.out[0], ctx->f32, "");
- args.out[1] = LLVMGetUndef(ctx->f32);
- args.out[2] = LLVMGetUndef(ctx->f32);
- args.out[3] = LLVMGetUndef(ctx->f32);
-
- args.target = V_008DFC_SQ_EXP_PRIM;
- args.enabled_channels = 1;
- args.done = true;
- args.valid_mask = false;
- args.compr = false;
-
- ac_build_export(ctx, &args);
-}
-
-static LLVMTypeRef
-arg_llvm_type(enum ac_arg_type type, unsigned size, struct ac_llvm_context *ctx)
-{
- if (type == AC_ARG_FLOAT) {
- return size == 1 ? ctx->f32 : LLVMVectorType(ctx->f32, size);
- } else if (type == AC_ARG_INT) {
- return size == 1 ? ctx->i32 : LLVMVectorType(ctx->i32, size);
- } else {
- LLVMTypeRef ptr_type;
- switch (type) {
- case AC_ARG_CONST_PTR:
- ptr_type = ctx->i8;
- break;
- case AC_ARG_CONST_FLOAT_PTR:
- ptr_type = ctx->f32;
- break;
- case AC_ARG_CONST_PTR_PTR:
- ptr_type = ac_array_in_const32_addr_space(ctx->i8);
- break;
- case AC_ARG_CONST_DESC_PTR:
- ptr_type = ctx->v4i32;
- break;
- case AC_ARG_CONST_IMAGE_PTR:
- ptr_type = ctx->v8i32;
- break;
- default:
- unreachable("unknown arg type");
- }
- if (size == 1) {
- return ac_array_in_const32_addr_space(ptr_type);
- } else {
- assert(size == 2);
- return ac_array_in_const_addr_space(ptr_type);
- }
- }
-}
-
-LLVMValueRef
-ac_build_main(const struct ac_shader_args *args,
- struct ac_llvm_context *ctx,
- enum ac_llvm_calling_convention convention,
- const char *name, LLVMTypeRef ret_type,
- LLVMModuleRef module)
-{
- LLVMTypeRef arg_types[AC_MAX_ARGS];
-
- for (unsigned i = 0; i < args->arg_count; i++) {
- arg_types[i] = arg_llvm_type(args->args[i].type,
- args->args[i].size, ctx);
- }
-
- LLVMTypeRef main_function_type =
- LLVMFunctionType(ret_type, arg_types, args->arg_count, 0);
-
- LLVMValueRef main_function =
- LLVMAddFunction(module, name, main_function_type);
- LLVMBasicBlockRef main_function_body =
- LLVMAppendBasicBlockInContext(ctx->context, main_function, "main_body");
- LLVMPositionBuilderAtEnd(ctx->builder, main_function_body);
-
- LLVMSetFunctionCallConv(main_function, convention);
- for (unsigned i = 0; i < args->arg_count; ++i) {
- LLVMValueRef P = LLVMGetParam(main_function, i);
-
- if (args->args[i].file != AC_ARG_SGPR)
- continue;
-
- ac_add_function_attr(ctx->context, main_function, i + 1, AC_FUNC_ATTR_INREG);
-
- if (LLVMGetTypeKind(LLVMTypeOf(P)) == LLVMPointerTypeKind) {
- ac_add_function_attr(ctx->context, main_function, i + 1, AC_FUNC_ATTR_NOALIAS);
- ac_add_attr_dereferenceable(P, UINT64_MAX);
- }
- }
-
- ctx->main_function = main_function;
- return main_function;
+ LLVMValueRef vtx_cnt, LLVMValueRef prim_cnt)
+{
+ LLVMBuilderRef builder = ctx->builder;
+ LLVMValueRef tmp;
+ bool export_dummy_prim = false;
+
+ /* HW workaround for a GPU hang with 100% culling.
+ * We always have to export at least 1 primitive.
+ * Export a degenerate triangle using vertex 0 for all 3 vertices.
+ */
+ if (prim_cnt == ctx->i32_0 && ctx->chip_class == GFX10) {
+ assert(vtx_cnt == ctx->i32_0);
+ prim_cnt = ctx->i32_1;
+ vtx_cnt = ctx->i32_1;
+ export_dummy_prim = true;
+ }
+
+ ac_build_ifcc(ctx, LLVMBuildICmp(builder, LLVMIntEQ, wave_id, ctx->i32_0, ""), 5020);
+
+ tmp = LLVMBuildShl(builder, prim_cnt, LLVMConstInt(ctx->i32, 12, false), "");
+ tmp = LLVMBuildOr(builder, tmp, vtx_cnt, "");
+ ac_build_sendmsg(ctx, AC_SENDMSG_GS_ALLOC_REQ, tmp);
+
+ if (export_dummy_prim) {
+ struct ac_ngg_prim prim = {};
+ /* The vertex indices are 0,0,0. */
+ prim.passthrough = ctx->i32_0;
+
+ struct ac_export_args pos = {};
+ pos.out[0] = pos.out[1] = pos.out[2] = pos.out[3] = ctx->f32_0;
+ pos.target = V_008DFC_SQ_EXP_POS;
+ pos.enabled_channels = 0xf;
+ pos.done = true;
+
+ ac_build_ifcc(ctx, LLVMBuildICmp(builder, LLVMIntEQ, ac_get_thread_id(ctx), ctx->i32_0, ""),
+ 5021);
+ ac_build_export_prim(ctx, &prim);
+ ac_build_export(ctx, &pos);
+ ac_build_endif(ctx, 5021);
+ }
+
+ ac_build_endif(ctx, 5020);
+}
+
+LLVMValueRef ac_pack_prim_export(struct ac_llvm_context *ctx, const struct ac_ngg_prim *prim)
+{
+ /* The prim export format is:
+ * - bits 0..8: index 0
+ * - bit 9: edge flag 0
+ * - bits 10..18: index 1
+ * - bit 19: edge flag 1
+ * - bits 20..28: index 2
+ * - bit 29: edge flag 2
+ * - bit 31: null primitive (skip)
+ */
+ LLVMBuilderRef builder = ctx->builder;
+ LLVMValueRef tmp = LLVMBuildZExt(builder, prim->isnull, ctx->i32, "");
+ LLVMValueRef result = LLVMBuildShl(builder, tmp, LLVMConstInt(ctx->i32, 31, false), "");
+
+ for (unsigned i = 0; i < prim->num_vertices; ++i) {
+ tmp = LLVMBuildShl(builder, prim->index[i], LLVMConstInt(ctx->i32, 10 * i, false), "");
+ result = LLVMBuildOr(builder, result, tmp, "");
+ tmp = LLVMBuildZExt(builder, prim->edgeflag[i], ctx->i32, "");
+ tmp = LLVMBuildShl(builder, tmp, LLVMConstInt(ctx->i32, 10 * i + 9, false), "");
+ result = LLVMBuildOr(builder, result, tmp, "");
+ }
+ return result;
+}
+
+void ac_build_export_prim(struct ac_llvm_context *ctx, const struct ac_ngg_prim *prim)
+{
+ struct ac_export_args args;
+
+ if (prim->passthrough) {
+ args.out[0] = prim->passthrough;
+ } else {
+ args.out[0] = ac_pack_prim_export(ctx, prim);
+ }
+
+ args.out[0] = LLVMBuildBitCast(ctx->builder, args.out[0], ctx->f32, "");
+ args.out[1] = LLVMGetUndef(ctx->f32);
+ args.out[2] = LLVMGetUndef(ctx->f32);
+ args.out[3] = LLVMGetUndef(ctx->f32);
+
+ args.target = V_008DFC_SQ_EXP_PRIM;
+ args.enabled_channels = 1;
+ args.done = true;
+ args.valid_mask = false;
+ args.compr = false;
+
+ ac_build_export(ctx, &args);
+}
+
+static LLVMTypeRef arg_llvm_type(enum ac_arg_type type, unsigned size, struct ac_llvm_context *ctx)
+{
+ if (type == AC_ARG_FLOAT) {
+ return size == 1 ? ctx->f32 : LLVMVectorType(ctx->f32, size);
+ } else if (type == AC_ARG_INT) {
+ return size == 1 ? ctx->i32 : LLVMVectorType(ctx->i32, size);
+ } else {
+ LLVMTypeRef ptr_type;
+ switch (type) {
+ case AC_ARG_CONST_PTR:
+ ptr_type = ctx->i8;
+ break;
+ case AC_ARG_CONST_FLOAT_PTR:
+ ptr_type = ctx->f32;
+ break;
+ case AC_ARG_CONST_PTR_PTR:
+ ptr_type = ac_array_in_const32_addr_space(ctx->i8);
+ break;
+ case AC_ARG_CONST_DESC_PTR:
+ ptr_type = ctx->v4i32;
+ break;
+ case AC_ARG_CONST_IMAGE_PTR:
+ ptr_type = ctx->v8i32;
+ break;
+ default:
+ unreachable("unknown arg type");
+ }
+ if (size == 1) {
+ return ac_array_in_const32_addr_space(ptr_type);
+ } else {
+ assert(size == 2);
+ return ac_array_in_const_addr_space(ptr_type);
+ }
+ }
+}
+
+LLVMValueRef ac_build_main(const struct ac_shader_args *args, struct ac_llvm_context *ctx,
+ enum ac_llvm_calling_convention convention, const char *name,
+ LLVMTypeRef ret_type, LLVMModuleRef module)
+{
+ LLVMTypeRef arg_types[AC_MAX_ARGS];
+
+ for (unsigned i = 0; i < args->arg_count; i++) {
+ arg_types[i] = arg_llvm_type(args->args[i].type, args->args[i].size, ctx);
+ }
+
+ LLVMTypeRef main_function_type = LLVMFunctionType(ret_type, arg_types, args->arg_count, 0);
+
+ LLVMValueRef main_function = LLVMAddFunction(module, name, main_function_type);
+ LLVMBasicBlockRef main_function_body =
+ LLVMAppendBasicBlockInContext(ctx->context, main_function, "main_body");
+ LLVMPositionBuilderAtEnd(ctx->builder, main_function_body);
+
+ LLVMSetFunctionCallConv(main_function, convention);
+ for (unsigned i = 0; i < args->arg_count; ++i) {
+ LLVMValueRef P = LLVMGetParam(main_function, i);
+
+ if (args->args[i].file != AC_ARG_SGPR)
+ continue;
+
+ ac_add_function_attr(ctx->context, main_function, i + 1, AC_FUNC_ATTR_INREG);
+
+ if (LLVMGetTypeKind(LLVMTypeOf(P)) == LLVMPointerTypeKind) {
+ ac_add_function_attr(ctx->context, main_function, i + 1, AC_FUNC_ATTR_NOALIAS);
+ ac_add_attr_dereferenceable(P, UINT64_MAX);
+ ac_add_attr_alignment(P, 32);
+ }
+ }
+
+ ctx->main_function = main_function;
+
+ if (LLVM_VERSION_MAJOR >= 11) {
+ /* Enable denormals for FP16 and FP64: */
+ LLVMAddTargetDependentFunctionAttr(main_function, "denormal-fp-math", "ieee,ieee");
+ /* Disable denormals for FP32: */
+ LLVMAddTargetDependentFunctionAttr(main_function, "denormal-fp-math-f32",
+ "preserve-sign,preserve-sign");
+ }
+ return main_function;
}
void ac_build_s_endpgm(struct ac_llvm_context *ctx)
{
- LLVMTypeRef calltype = LLVMFunctionType(ctx->voidt, NULL, 0, false);
- LLVMValueRef code = LLVMConstInlineAsm(calltype, "s_endpgm", "", true, false);
- LLVMBuildCall(ctx->builder, code, NULL, 0, "");
+ LLVMTypeRef calltype = LLVMFunctionType(ctx->voidt, NULL, 0, false);
+ LLVMValueRef code = LLVMConstInlineAsm(calltype, "s_endpgm", "", true, false);
+ LLVMBuildCall(ctx->builder, code, NULL, 0, "");
}
-LLVMValueRef ac_prefix_bitcount(struct ac_llvm_context *ctx,
- LLVMValueRef mask, LLVMValueRef index)
+LLVMValueRef ac_prefix_bitcount(struct ac_llvm_context *ctx, LLVMValueRef mask, LLVMValueRef index)
{
- LLVMBuilderRef builder = ctx->builder;
- LLVMTypeRef type = LLVMTypeOf(mask);
+ LLVMBuilderRef builder = ctx->builder;
+ LLVMTypeRef type = LLVMTypeOf(mask);
- LLVMValueRef bit = LLVMBuildShl(builder, LLVMConstInt(type, 1, 0),
- LLVMBuildZExt(builder, index, type, ""), "");
- LLVMValueRef prefix_bits = LLVMBuildSub(builder, bit, LLVMConstInt(type, 1, 0), "");
- LLVMValueRef prefix_mask = LLVMBuildAnd(builder, mask, prefix_bits, "");
- return ac_build_bit_count(ctx, prefix_mask);
+ LLVMValueRef bit =
+ LLVMBuildShl(builder, LLVMConstInt(type, 1, 0), LLVMBuildZExt(builder, index, type, ""), "");
+ LLVMValueRef prefix_bits = LLVMBuildSub(builder, bit, LLVMConstInt(type, 1, 0), "");
+ LLVMValueRef prefix_mask = LLVMBuildAnd(builder, mask, prefix_bits, "");
+ return ac_build_bit_count(ctx, prefix_mask);
}
/* Compute the prefix sum of the "mask" bit array with 128 elements (bits). */
-LLVMValueRef ac_prefix_bitcount_2x64(struct ac_llvm_context *ctx,
- LLVMValueRef mask[2], LLVMValueRef index)
+LLVMValueRef ac_prefix_bitcount_2x64(struct ac_llvm_context *ctx, LLVMValueRef mask[2],
+ LLVMValueRef index)
{
- LLVMBuilderRef builder = ctx->builder;
+ LLVMBuilderRef builder = ctx->builder;
#if 0
/* Reference version using i128. */
LLVMValueRef input_mask =
return ac_prefix_bitcount(ctx, input_mask, index);
#else
- /* Optimized version using 2 64-bit masks. */
- LLVMValueRef is_hi, is_0, c64, c128, all_bits;
- LLVMValueRef prefix_mask[2], shift[2], mask_bcnt0, prefix_bcnt[2];
-
- /* Compute the 128-bit prefix mask. */
- c64 = LLVMConstInt(ctx->i32, 64, 0);
- c128 = LLVMConstInt(ctx->i32, 128, 0);
- all_bits = LLVMConstInt(ctx->i64, UINT64_MAX, 0);
- /* The first index that can have non-zero high bits in the prefix mask is 65. */
- is_hi = LLVMBuildICmp(builder, LLVMIntUGT, index, c64, "");
- is_0 = LLVMBuildICmp(builder, LLVMIntEQ, index, ctx->i32_0, "");
- mask_bcnt0 = ac_build_bit_count(ctx, mask[0]);
-
- for (unsigned i = 0; i < 2; i++) {
- shift[i] = LLVMBuildSub(builder, i ? c128 : c64, index, "");
- /* For i==0, index==0, the right shift by 64 doesn't give the desired result,
- * so we handle it by the is_0 select.
- * For i==1, index==64, same story, so we handle it by the last is_hi select.
- * For i==0, index==64, we shift by 0, which is what we want.
- */
- prefix_mask[i] = LLVMBuildLShr(builder, all_bits,
- LLVMBuildZExt(builder, shift[i], ctx->i64, ""), "");
- prefix_mask[i] = LLVMBuildAnd(builder, mask[i], prefix_mask[i], "");
- prefix_bcnt[i] = ac_build_bit_count(ctx, prefix_mask[i]);
- }
-
- prefix_bcnt[0] = LLVMBuildSelect(builder, is_0, ctx->i32_0, prefix_bcnt[0], "");
- prefix_bcnt[0] = LLVMBuildSelect(builder, is_hi, mask_bcnt0, prefix_bcnt[0], "");
- prefix_bcnt[1] = LLVMBuildSelect(builder, is_hi, prefix_bcnt[1], ctx->i32_0, "");
-
- return LLVMBuildAdd(builder, prefix_bcnt[0], prefix_bcnt[1], "");
+ /* Optimized version using 2 64-bit masks. */
+ LLVMValueRef is_hi, is_0, c64, c128, all_bits;
+ LLVMValueRef prefix_mask[2], shift[2], mask_bcnt0, prefix_bcnt[2];
+
+ /* Compute the 128-bit prefix mask. */
+ c64 = LLVMConstInt(ctx->i32, 64, 0);
+ c128 = LLVMConstInt(ctx->i32, 128, 0);
+ all_bits = LLVMConstInt(ctx->i64, UINT64_MAX, 0);
+ /* The first index that can have non-zero high bits in the prefix mask is 65. */
+ is_hi = LLVMBuildICmp(builder, LLVMIntUGT, index, c64, "");
+ is_0 = LLVMBuildICmp(builder, LLVMIntEQ, index, ctx->i32_0, "");
+ mask_bcnt0 = ac_build_bit_count(ctx, mask[0]);
+
+ for (unsigned i = 0; i < 2; i++) {
+ shift[i] = LLVMBuildSub(builder, i ? c128 : c64, index, "");
+ /* For i==0, index==0, the right shift by 64 doesn't give the desired result,
+ * so we handle it by the is_0 select.
+ * For i==1, index==64, same story, so we handle it by the last is_hi select.
+ * For i==0, index==64, we shift by 0, which is what we want.
+ */
+ prefix_mask[i] =
+ LLVMBuildLShr(builder, all_bits, LLVMBuildZExt(builder, shift[i], ctx->i64, ""), "");
+ prefix_mask[i] = LLVMBuildAnd(builder, mask[i], prefix_mask[i], "");
+ prefix_bcnt[i] = ac_build_bit_count(ctx, prefix_mask[i]);
+ }
+
+ prefix_bcnt[0] = LLVMBuildSelect(builder, is_0, ctx->i32_0, prefix_bcnt[0], "");
+ prefix_bcnt[0] = LLVMBuildSelect(builder, is_hi, mask_bcnt0, prefix_bcnt[0], "");
+ prefix_bcnt[1] = LLVMBuildSelect(builder, is_hi, prefix_bcnt[1], ctx->i32_0, "");
+
+ return LLVMBuildAdd(builder, prefix_bcnt[0], prefix_bcnt[1], "");
#endif
}
* Convert triangle strip indices to triangle indices. This is used to decompose
* triangle strips into triangles.
*/
-void ac_build_triangle_strip_indices_to_triangle(struct ac_llvm_context *ctx,
- LLVMValueRef is_odd,
- LLVMValueRef flatshade_first,
- LLVMValueRef index[3])
-{
- LLVMBuilderRef builder = ctx->builder;
- LLVMValueRef out[3];
-
- /* We need to change the vertex order for odd triangles to get correct
- * front/back facing by swapping 2 vertex indices, but we also have to
- * keep the provoking vertex in the same place.
- *
- * If the first vertex is provoking, swap index 1 and 2.
- * If the last vertex is provoking, swap index 0 and 1.
- */
- out[0] = LLVMBuildSelect(builder, flatshade_first,
- index[0],
- LLVMBuildSelect(builder, is_odd,
- index[1], index[0], ""), "");
- out[1] = LLVMBuildSelect(builder, flatshade_first,
- LLVMBuildSelect(builder, is_odd,
- index[2], index[1], ""),
- LLVMBuildSelect(builder, is_odd,
- index[0], index[1], ""), "");
- out[2] = LLVMBuildSelect(builder, flatshade_first,
- LLVMBuildSelect(builder, is_odd,
- index[1], index[2], ""),
- index[2], "");
- memcpy(index, out, sizeof(out));
+void ac_build_triangle_strip_indices_to_triangle(struct ac_llvm_context *ctx, LLVMValueRef is_odd,
+ LLVMValueRef flatshade_first,
+ LLVMValueRef index[3])
+{
+ LLVMBuilderRef builder = ctx->builder;
+ LLVMValueRef out[3];
+
+ /* We need to change the vertex order for odd triangles to get correct
+ * front/back facing by swapping 2 vertex indices, but we also have to
+ * keep the provoking vertex in the same place.
+ *
+ * If the first vertex is provoking, swap index 1 and 2.
+ * If the last vertex is provoking, swap index 0 and 1.
+ */
+ out[0] = LLVMBuildSelect(builder, flatshade_first, index[0],
+ LLVMBuildSelect(builder, is_odd, index[1], index[0], ""), "");
+ out[1] = LLVMBuildSelect(builder, flatshade_first,
+ LLVMBuildSelect(builder, is_odd, index[2], index[1], ""),
+ LLVMBuildSelect(builder, is_odd, index[0], index[1], ""), "");
+ out[2] = LLVMBuildSelect(builder, flatshade_first,
+ LLVMBuildSelect(builder, is_odd, index[1], index[2], ""), index[2], "");
+ memcpy(index, out, sizeof(out));
}
projects / mesa.git / blobdiff