#include "tgsi/tgsi_info.h"
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_util.h"
-#include "tgsi/tgsi_exec.h"
#include "tgsi/tgsi_scan.h"
#include "lp_bld_type.h"
#include "lp_bld_const.h"
#include "lp_bld_arit.h"
+#include "lp_bld_bitarit.h"
+#include "lp_bld_gather.h"
+#include "lp_bld_init.h"
#include "lp_bld_logic.h"
#include "lp_bld_swizzle.h"
#include "lp_bld_flow.h"
+#include "lp_bld_quad.h"
#include "lp_bld_tgsi.h"
+#include "lp_bld_limits.h"
#include "lp_bld_debug.h"
-
-
-#define LP_MAX_TEMPS 256
-#define LP_MAX_IMMEDIATES 256
+#include "lp_bld_printf.h"
#define FOR_EACH_CHANNEL( CHAN )\
#define CHAN_Y 1
#define CHAN_Z 2
#define CHAN_W 3
+#define NUM_CHANNELS 4
-#define QUAD_TOP_LEFT 0
-#define QUAD_TOP_RIGHT 1
-#define QUAD_BOTTOM_LEFT 2
-#define QUAD_BOTTOM_RIGHT 3
+#define LP_MAX_INSTRUCTIONS 256
-#define LP_TGSI_MAX_NESTING 16
struct lp_exec_mask {
struct lp_build_context *bld;
LLVMTypeRef int_vec_type;
- LLVMValueRef cond_stack[LP_TGSI_MAX_NESTING];
+ LLVMValueRef cond_stack[LP_MAX_TGSI_NESTING];
int cond_stack_size;
LLVMValueRef cond_mask;
- LLVMValueRef break_stack[LP_TGSI_MAX_NESTING];
- int break_stack_size;
- LLVMValueRef break_mask;
-
- LLVMValueRef cont_stack[LP_TGSI_MAX_NESTING];
- int cont_stack_size;
+ LLVMBasicBlockRef loop_block;
LLVMValueRef cont_mask;
-
- LLVMBasicBlockRef loop_stack[LP_TGSI_MAX_NESTING];
+ LLVMValueRef break_mask;
+ LLVMValueRef break_var;
+ struct {
+ LLVMBasicBlockRef loop_block;
+ LLVMValueRef cont_mask;
+ LLVMValueRef break_mask;
+ LLVMValueRef break_var;
+ } loop_stack[LP_MAX_TGSI_NESTING];
int loop_stack_size;
- LLVMBasicBlockRef loop_block;
+ LLVMValueRef ret_mask;
+ struct {
+ int pc;
+ LLVMValueRef ret_mask;
+ } call_stack[LP_MAX_TGSI_NESTING];
+ int call_stack_size;
LLVMValueRef exec_mask;
};
{
struct lp_build_context base;
+ /* Builder for vector integer masks and indices */
+ struct lp_build_context uint_bld;
+
+ /* Builder for scalar elements of shader's data type (float) */
+ struct lp_build_context elem_bld;
+
LLVMValueRef consts_ptr;
const LLVMValueRef *pos;
const LLVMValueRef (*inputs)[NUM_CHANNELS];
LLVMValueRef (*outputs)[NUM_CHANNELS];
- struct lp_build_sampler_soa *sampler;
+ const struct lp_build_sampler_soa *sampler;
- LLVMValueRef immediates[LP_MAX_IMMEDIATES][NUM_CHANNELS];
- LLVMValueRef temps[LP_MAX_TEMPS][NUM_CHANNELS];
- LLVMValueRef addr[LP_MAX_TEMPS][NUM_CHANNELS];
+ LLVMValueRef immediates[LP_MAX_TGSI_IMMEDIATES][NUM_CHANNELS];
+ LLVMValueRef temps[LP_MAX_TGSI_TEMPS][NUM_CHANNELS];
+ LLVMValueRef addr[LP_MAX_TGSI_ADDRS][NUM_CHANNELS];
+ LLVMValueRef preds[LP_MAX_TGSI_PREDS][NUM_CHANNELS];
- /* we allocate an array of temps if we have indirect
- * addressing and then the temps above is unused */
+ /* We allocate/use this array of temps if (1 << TGSI_FILE_TEMPORARY) is
+ * set in the indirect_files field.
+ * The temps[] array above is unused then.
+ */
LLVMValueRef temps_array;
- boolean has_indirect_addressing;
- struct lp_build_mask_context *mask;
- struct lp_exec_mask exec_mask;
-};
+ /* We allocate/use this array of output if (1 << TGSI_FILE_OUTPUT) is
+ * set in the indirect_files field.
+ * The outputs[] array above is unused then.
+ */
+ LLVMValueRef outputs_array;
-static const unsigned char
-swizzle_left[4] = {
- QUAD_TOP_LEFT, QUAD_TOP_LEFT,
- QUAD_BOTTOM_LEFT, QUAD_BOTTOM_LEFT
-};
+ /* We allocate/use this array of inputs if (1 << TGSI_FILE_INPUT) is
+ * set in the indirect_files field.
+ * The inputs[] array above is unused then.
+ */
+ LLVMValueRef inputs_array;
-static const unsigned char
-swizzle_right[4] = {
- QUAD_TOP_RIGHT, QUAD_TOP_RIGHT,
- QUAD_BOTTOM_RIGHT, QUAD_BOTTOM_RIGHT
-};
+ LLVMValueRef system_values_array;
-static const unsigned char
-swizzle_top[4] = {
- QUAD_TOP_LEFT, QUAD_TOP_RIGHT,
- QUAD_TOP_LEFT, QUAD_TOP_RIGHT
-};
+ const struct tgsi_shader_info *info;
+ /** bitmask indicating which register files are accessed indirectly */
+ unsigned indirect_files;
-static const unsigned char
-swizzle_bottom[4] = {
- QUAD_BOTTOM_LEFT, QUAD_BOTTOM_RIGHT,
- QUAD_BOTTOM_LEFT, QUAD_BOTTOM_RIGHT
+ struct lp_build_mask_context *mask;
+ struct lp_exec_mask exec_mask;
+
+ struct tgsi_full_instruction *instructions;
+ uint max_instructions;
};
static void lp_exec_mask_init(struct lp_exec_mask *mask, struct lp_build_context *bld)
mask->has_mask = FALSE;
mask->cond_stack_size = 0;
mask->loop_stack_size = 0;
- mask->break_stack_size = 0;
- mask->cont_stack_size = 0;
+ mask->call_stack_size = 0;
- mask->int_vec_type = lp_build_int_vec_type(mask->bld->type);
+ mask->int_vec_type = lp_build_int_vec_type(bld->gallivm, mask->bld->type);
+ mask->exec_mask = mask->ret_mask = mask->break_mask = mask->cont_mask = mask->cond_mask =
+ LLVMConstAllOnes(mask->int_vec_type);
}
static void lp_exec_mask_update(struct lp_exec_mask *mask)
{
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
+
if (mask->loop_stack_size) {
/*for loops we need to update the entire mask at runtime */
LLVMValueRef tmp;
assert(mask->break_mask);
- tmp = LLVMBuildAnd(mask->bld->builder,
+ tmp = LLVMBuildAnd(builder,
mask->cont_mask,
mask->break_mask,
"maskcb");
- mask->exec_mask = LLVMBuildAnd(mask->bld->builder,
+ mask->exec_mask = LLVMBuildAnd(builder,
mask->cond_mask,
tmp,
"maskfull");
} else
mask->exec_mask = mask->cond_mask;
+ if (mask->call_stack_size) {
+ mask->exec_mask = LLVMBuildAnd(builder,
+ mask->exec_mask,
+ mask->ret_mask,
+ "callmask");
+ }
mask->has_mask = (mask->cond_stack_size > 0 ||
- mask->loop_stack_size > 0);
+ mask->loop_stack_size > 0 ||
+ mask->call_stack_size > 0);
}
static void lp_exec_mask_cond_push(struct lp_exec_mask *mask,
LLVMValueRef val)
{
- mask->cond_stack[mask->cond_stack_size++] = mask->cond_mask;
- mask->cond_mask = LLVMBuildBitCast(mask->bld->builder, val,
- mask->int_vec_type, "");
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
+ assert(mask->cond_stack_size < LP_MAX_TGSI_NESTING);
+ if (mask->cond_stack_size == 0) {
+ assert(mask->cond_mask == LLVMConstAllOnes(mask->int_vec_type));
+ }
+ mask->cond_stack[mask->cond_stack_size++] = mask->cond_mask;
+ assert(LLVMTypeOf(val) == mask->int_vec_type);
+ mask->cond_mask = LLVMBuildAnd(builder,
+ mask->cond_mask,
+ val,
+ "");
lp_exec_mask_update(mask);
}
static void lp_exec_mask_cond_invert(struct lp_exec_mask *mask)
{
- LLVMValueRef prev_mask = mask->cond_stack[mask->cond_stack_size - 1];
- LLVMValueRef inv_mask = LLVMBuildNot(mask->bld->builder,
- mask->cond_mask, "");
-
- /* means that we didn't have any mask before and that
- * we were fully enabled */
- if (mask->cond_stack_size <= 1) {
- prev_mask = LLVMConstAllOnes(mask->int_vec_type);
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
+ LLVMValueRef prev_mask;
+ LLVMValueRef inv_mask;
+
+ assert(mask->cond_stack_size);
+ prev_mask = mask->cond_stack[mask->cond_stack_size - 1];
+ if (mask->cond_stack_size == 1) {
+ assert(prev_mask == LLVMConstAllOnes(mask->int_vec_type));
}
- mask->cond_mask = LLVMBuildAnd(mask->bld->builder,
+ inv_mask = LLVMBuildNot(builder, mask->cond_mask, "");
+
+ mask->cond_mask = LLVMBuildAnd(builder,
inv_mask,
prev_mask, "");
lp_exec_mask_update(mask);
static void lp_exec_mask_cond_pop(struct lp_exec_mask *mask)
{
+ assert(mask->cond_stack_size);
mask->cond_mask = mask->cond_stack[--mask->cond_stack_size];
lp_exec_mask_update(mask);
}
static void lp_exec_bgnloop(struct lp_exec_mask *mask)
{
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
+
+ if (mask->loop_stack_size == 0) {
+ assert(mask->loop_block == NULL);
+ assert(mask->cont_mask == LLVMConstAllOnes(mask->int_vec_type));
+ assert(mask->break_mask == LLVMConstAllOnes(mask->int_vec_type));
+ assert(mask->break_var == NULL);
+ }
- if (mask->cont_stack_size == 0)
- mask->cont_mask = LLVMConstAllOnes(mask->int_vec_type);
- if (mask->break_stack_size == 0)
- mask->break_mask = LLVMConstAllOnes(mask->int_vec_type);
- if (mask->cond_stack_size == 0)
- mask->cond_mask = LLVMConstAllOnes(mask->int_vec_type);
+ assert(mask->loop_stack_size < LP_MAX_TGSI_NESTING);
- mask->break_stack[mask->break_stack_size++] = mask->break_mask;
- mask->cont_stack[mask->cont_stack_size++] = mask->cont_mask;
- mask->loop_stack[mask->loop_stack_size++] = mask->loop_block;
- mask->loop_block = lp_build_insert_new_block(mask->bld->builder, "bgnloop");
- LLVMBuildBr(mask->bld->builder, mask->loop_block);
- LLVMPositionBuilderAtEnd(mask->bld->builder, mask->loop_block);
+ mask->loop_stack[mask->loop_stack_size].loop_block = mask->loop_block;
+ mask->loop_stack[mask->loop_stack_size].cont_mask = mask->cont_mask;
+ mask->loop_stack[mask->loop_stack_size].break_mask = mask->break_mask;
+ mask->loop_stack[mask->loop_stack_size].break_var = mask->break_var;
+ ++mask->loop_stack_size;
+
+ mask->break_var = lp_build_alloca(mask->bld->gallivm, mask->int_vec_type, "");
+ LLVMBuildStore(builder, mask->break_mask, mask->break_var);
+
+ mask->loop_block = lp_build_insert_new_block(mask->bld->gallivm, "bgnloop");
+ LLVMBuildBr(builder, mask->loop_block);
+ LLVMPositionBuilderAtEnd(builder, mask->loop_block);
+
+ mask->break_mask = LLVMBuildLoad(builder, mask->break_var, "");
lp_exec_mask_update(mask);
}
static void lp_exec_break(struct lp_exec_mask *mask)
{
- LLVMValueRef exec_mask = LLVMBuildNot(mask->bld->builder,
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
+ LLVMValueRef exec_mask = LLVMBuildNot(builder,
mask->exec_mask,
"break");
- /* mask->break_stack_size > 1 implies that we encountered a break
- * statemant already and if that's the case we want to make sure
- * our mask is a combination of the previous break and the current
- * execution mask */
- if (mask->break_stack_size > 1) {
- mask->break_mask = LLVMBuildAnd(mask->bld->builder,
- mask->break_mask,
- exec_mask, "break_full");
- } else
- mask->break_mask = exec_mask;
+ mask->break_mask = LLVMBuildAnd(builder,
+ mask->break_mask,
+ exec_mask, "break_full");
lp_exec_mask_update(mask);
}
static void lp_exec_continue(struct lp_exec_mask *mask)
{
- LLVMValueRef exec_mask = LLVMBuildNot(mask->bld->builder,
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
+ LLVMValueRef exec_mask = LLVMBuildNot(builder,
mask->exec_mask,
"");
- if (mask->cont_stack_size > 1) {
- mask->cont_mask = LLVMBuildAnd(mask->bld->builder,
- mask->cont_mask,
- exec_mask, "");
- } else
- mask->cont_mask = exec_mask;
+ mask->cont_mask = LLVMBuildAnd(builder,
+ mask->cont_mask,
+ exec_mask, "");
lp_exec_mask_update(mask);
}
-static void lp_exec_endloop(struct lp_exec_mask *mask)
+static void lp_exec_endloop(struct gallivm_state *gallivm,
+ struct lp_exec_mask *mask)
{
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
LLVMBasicBlockRef endloop;
- LLVMTypeRef reg_type = LLVMIntType(mask->bld->type.width*
- mask->bld->type.length);
+ LLVMTypeRef reg_type = LLVMIntTypeInContext(gallivm->context,
+ mask->bld->type.width *
+ mask->bld->type.length);
LLVMValueRef i1cond;
assert(mask->break_mask);
+ /*
+ * Restore the cont_mask, but don't pop
+ */
+ assert(mask->loop_stack_size);
+ mask->cont_mask = mask->loop_stack[mask->loop_stack_size - 1].cont_mask;
+ lp_exec_mask_update(mask);
+
+ /*
+ * Unlike the continue mask, the break_mask must be preserved across loop
+ * iterations
+ */
+ LLVMBuildStore(builder, mask->break_mask, mask->break_var);
+
/* i1cond = (mask == 0) */
i1cond = LLVMBuildICmp(
- mask->bld->builder,
+ builder,
LLVMIntNE,
- LLVMBuildBitCast(mask->bld->builder, mask->break_mask, reg_type, ""),
+ LLVMBuildBitCast(builder, mask->exec_mask, reg_type, ""),
LLVMConstNull(reg_type), "");
- endloop = lp_build_insert_new_block(mask->bld->builder, "endloop");
+ endloop = lp_build_insert_new_block(mask->bld->gallivm, "endloop");
- LLVMBuildCondBr(mask->bld->builder,
+ LLVMBuildCondBr(builder,
i1cond, mask->loop_block, endloop);
- LLVMPositionBuilderAtEnd(mask->bld->builder, endloop);
+ LLVMPositionBuilderAtEnd(builder, endloop);
- mask->loop_block = mask->loop_stack[--mask->loop_stack_size];
- /* pop the cont mask */
- if (mask->cont_stack_size) {
- mask->cont_mask = mask->cont_stack[--mask->cont_stack_size];
- }
- /* pop the break mask */
- if (mask->break_stack_size) {
- mask->break_mask = mask->break_stack[--mask->break_stack_size];
- }
+ assert(mask->loop_stack_size);
+ --mask->loop_stack_size;
+ mask->loop_block = mask->loop_stack[mask->loop_stack_size].loop_block;
+ mask->cont_mask = mask->loop_stack[mask->loop_stack_size].cont_mask;
+ mask->break_mask = mask->loop_stack[mask->loop_stack_size].break_mask;
+ mask->break_var = mask->loop_stack[mask->loop_stack_size].break_var;
lp_exec_mask_update(mask);
}
* (0 means don't store this bit, 1 means do store).
*/
static void lp_exec_mask_store(struct lp_exec_mask *mask,
+ LLVMValueRef pred,
LLVMValueRef val,
LLVMValueRef dst)
{
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
+
+ /* Mix the predicate and execution mask */
if (mask->has_mask) {
+ if (pred) {
+ pred = LLVMBuildAnd(builder, pred, mask->exec_mask, "");
+ } else {
+ pred = mask->exec_mask;
+ }
+ }
+
+ if (pred) {
LLVMValueRef real_val, dst_val;
- dst_val = LLVMBuildLoad(mask->bld->builder, dst, "");
+ dst_val = LLVMBuildLoad(builder, dst, "");
real_val = lp_build_select(mask->bld,
- mask->exec_mask,
+ pred,
val, dst_val);
- LLVMBuildStore(mask->bld->builder, real_val, dst);
+ LLVMBuildStore(builder, real_val, dst);
} else
- LLVMBuildStore(mask->bld->builder, val, dst);
+ LLVMBuildStore(builder, val, dst);
}
+static void lp_exec_mask_call(struct lp_exec_mask *mask,
+ int func,
+ int *pc)
+{
+ assert(mask->call_stack_size < LP_MAX_TGSI_NESTING);
+ mask->call_stack[mask->call_stack_size].pc = *pc;
+ mask->call_stack[mask->call_stack_size].ret_mask = mask->ret_mask;
+ mask->call_stack_size++;
+ *pc = func;
+}
-static LLVMValueRef
-emit_ddx(struct lp_build_tgsi_soa_context *bld,
- LLVMValueRef src)
+static void lp_exec_mask_ret(struct lp_exec_mask *mask, int *pc)
{
- LLVMValueRef src_left = lp_build_swizzle1_aos(&bld->base, src, swizzle_left);
- LLVMValueRef src_right = lp_build_swizzle1_aos(&bld->base, src, swizzle_right);
- return lp_build_sub(&bld->base, src_right, src_left);
+ LLVMBuilderRef builder = mask->bld->gallivm->builder;
+ LLVMValueRef exec_mask;
+
+ if (mask->call_stack_size == 0) {
+ /* returning from main() */
+ *pc = -1;
+ return;
+ }
+ exec_mask = LLVMBuildNot(builder,
+ mask->exec_mask,
+ "ret");
+
+ mask->ret_mask = LLVMBuildAnd(builder,
+ mask->ret_mask,
+ exec_mask, "ret_full");
+
+ lp_exec_mask_update(mask);
}
+static void lp_exec_mask_bgnsub(struct lp_exec_mask *mask)
+{
+}
-static LLVMValueRef
-emit_ddy(struct lp_build_tgsi_soa_context *bld,
- LLVMValueRef src)
+static void lp_exec_mask_endsub(struct lp_exec_mask *mask, int *pc)
{
- LLVMValueRef src_top = lp_build_swizzle1_aos(&bld->base, src, swizzle_top);
- LLVMValueRef src_bottom = lp_build_swizzle1_aos(&bld->base, src, swizzle_bottom);
- return lp_build_sub(&bld->base, src_top, src_bottom);
+ assert(mask->call_stack_size);
+ mask->call_stack_size--;
+ *pc = mask->call_stack[mask->call_stack_size].pc;
+ mask->ret_mask = mask->call_stack[mask->call_stack_size].ret_mask;
+ lp_exec_mask_update(mask);
}
+
+/**
+ * Return pointer to a temporary register channel (src or dest).
+ * Note that indirect addressing cannot be handled here.
+ * \param index which temporary register
+ * \param chan which channel of the temp register.
+ */
static LLVMValueRef
get_temp_ptr(struct lp_build_tgsi_soa_context *bld,
unsigned index,
- unsigned swizzle,
- boolean is_indirect,
- LLVMValueRef addr)
+ unsigned chan)
{
- if (!bld->has_indirect_addressing) {
- return bld->temps[index][swizzle];
- } else {
- LLVMValueRef lindex =
- LLVMConstInt(LLVMInt32Type(), index*4 + swizzle, 0);
- if (is_indirect)
- lindex = lp_build_add(&bld->base, lindex, addr);
- return LLVMBuildGEP(bld->base.builder, bld->temps_array, &lindex, 1, "");
+ LLVMBuilderRef builder = bld->base.gallivm->builder;
+ assert(chan < 4);
+ if (bld->indirect_files & (1 << TGSI_FILE_TEMPORARY)) {
+ LLVMValueRef lindex = lp_build_const_int32(bld->base.gallivm, index * 4 + chan);
+ return LLVMBuildGEP(builder, bld->temps_array, &lindex, 1, "");
+ }
+ else {
+ return bld->temps[index][chan];
+ }
+}
+
+/**
+ * Return pointer to a output register channel (src or dest).
+ * Note that indirect addressing cannot be handled here.
+ * \param index which output register
+ * \param chan which channel of the output register.
+ */
+static LLVMValueRef
+get_output_ptr(struct lp_build_tgsi_soa_context *bld,
+ unsigned index,
+ unsigned chan)
+{
+ LLVMBuilderRef builder = bld->base.gallivm->builder;
+ assert(chan < 4);
+ if (bld->indirect_files & (1 << TGSI_FILE_OUTPUT)) {
+ LLVMValueRef lindex = lp_build_const_int32(bld->base.gallivm,
+ index * 4 + chan);
+ return LLVMBuildGEP(builder, bld->outputs_array, &lindex, 1, "");
+ }
+ else {
+ return bld->outputs[index][chan];
+ }
+}
+
+/**
+ * Gather vector.
+ * XXX the lp_build_gather() function should be capable of doing this
+ * with a little work.
+ */
+static LLVMValueRef
+build_gather(struct lp_build_tgsi_soa_context *bld,
+ LLVMValueRef base_ptr,
+ LLVMValueRef indexes)
+{
+ LLVMBuilderRef builder = bld->base.gallivm->builder;
+ LLVMValueRef res = bld->base.undef;
+ unsigned i;
+
+ /*
+ * Loop over elements of index_vec, load scalar value, insert it into 'res'.
+ */
+ for (i = 0; i < bld->base.type.length; i++) {
+ LLVMValueRef ii = lp_build_const_int32(bld->base.gallivm, i);
+ LLVMValueRef index = LLVMBuildExtractElement(builder,
+ indexes, ii, "");
+ LLVMValueRef scalar_ptr = LLVMBuildGEP(builder, base_ptr,
+ &index, 1, "gather_ptr");
+ LLVMValueRef scalar = LLVMBuildLoad(builder, scalar_ptr, "");
+
+ res = LLVMBuildInsertElement(builder, res, scalar, ii, "");
}
+
+ return res;
+}
+
+
+/**
+ * Scatter/store vector.
+ */
+static void
+emit_mask_scatter(struct lp_build_tgsi_soa_context *bld,
+ LLVMValueRef base_ptr,
+ LLVMValueRef indexes,
+ LLVMValueRef values,
+ struct lp_exec_mask *mask,
+ LLVMValueRef pred)
+{
+ struct gallivm_state *gallivm = bld->base.gallivm;
+ LLVMBuilderRef builder = gallivm->builder;
+ unsigned i;
+
+ /* Mix the predicate and execution mask */
+ if (mask->has_mask) {
+ if (pred) {
+ pred = LLVMBuildAnd(builder, pred, mask->exec_mask, "");
+ }
+ else {
+ pred = mask->exec_mask;
+ }
+ }
+
+ /*
+ * Loop over elements of index_vec, store scalar value.
+ */
+ for (i = 0; i < bld->base.type.length; i++) {
+ LLVMValueRef ii = lp_build_const_int32(gallivm, i);
+ LLVMValueRef index = LLVMBuildExtractElement(builder, indexes, ii, "");
+ LLVMValueRef scalar_ptr = LLVMBuildGEP(builder, base_ptr, &index, 1, "scatter_ptr");
+ LLVMValueRef val = LLVMBuildExtractElement(builder, values, ii, "scatter_val");
+ LLVMValueRef scalar_pred = pred ?
+ LLVMBuildExtractElement(builder, pred, ii, "scatter_pred") : NULL;
+
+ if (0)
+ lp_build_printf(gallivm, "scatter %d: val %f at %d %p\n",
+ ii, val, index, scalar_ptr);
+
+ if (scalar_pred) {
+ LLVMValueRef real_val, dst_val;
+ dst_val = LLVMBuildLoad(builder, scalar_ptr, "");
+ real_val = lp_build_select(&bld->elem_bld, scalar_pred, val, dst_val);
+ LLVMBuildStore(builder, real_val, scalar_ptr);
+ }
+ else {
+ LLVMBuildStore(builder, val, scalar_ptr);
+ }
+ }
+}
+
+
+/**
+ * Read the current value of the ADDR register, convert the floats to
+ * ints, add the base index and return the vector of offsets.
+ * The offsets will be used to index into the constant buffer or
+ * temporary register file.
+ */
+static LLVMValueRef
+get_indirect_index(struct lp_build_tgsi_soa_context *bld,
+ unsigned reg_file, unsigned reg_index,
+ const struct tgsi_src_register *indirect_reg)
+{
+ LLVMBuilderRef builder = bld->base.gallivm->builder;
+ struct lp_build_context *uint_bld = &bld->uint_bld;
+ /* always use X component of address register */
+ unsigned swizzle = indirect_reg->SwizzleX;
+ LLVMValueRef base;
+ LLVMValueRef rel;
+ LLVMValueRef max_index;
+ LLVMValueRef index;
+
+ assert(bld->indirect_files & (1 << reg_file));
+
+ base = lp_build_const_int_vec(bld->base.gallivm, uint_bld->type, reg_index);
+
+ assert(swizzle < 4);
+ rel = LLVMBuildLoad(builder,
+ bld->addr[indirect_reg->Index][swizzle],
+ "load addr reg");
+
+ /* for indexing we want integers */
+ rel = LLVMBuildFPToSI(builder,
+ rel,
+ uint_bld->vec_type, "");
+
+ index = lp_build_add(uint_bld, base, rel);
+
+ max_index = lp_build_const_int_vec(bld->base.gallivm,
+ uint_bld->type,
+ bld->info->file_max[reg_file]);
+
+ assert(!uint_bld->type.sign);
+ index = lp_build_min(uint_bld, index, max_index);
+
+ return index;
}
+
/**
* Register fetch.
*/
emit_fetch(
struct lp_build_tgsi_soa_context *bld,
const struct tgsi_full_instruction *inst,
- unsigned index,
+ unsigned src_op,
const unsigned chan_index )
{
- const struct tgsi_full_src_register *reg = &inst->Src[index];
- unsigned swizzle = tgsi_util_get_full_src_register_swizzle( reg, chan_index );
+ struct gallivm_state *gallivm = bld->base.gallivm;
+ LLVMBuilderRef builder = gallivm->builder;
+ struct lp_build_context *uint_bld = &bld->uint_bld;
+ const struct tgsi_full_src_register *reg = &inst->Src[src_op];
+ const unsigned swizzle =
+ tgsi_util_get_full_src_register_swizzle(reg, chan_index);
LLVMValueRef res;
- LLVMValueRef addr;
+ LLVMValueRef indirect_index = NULL;
+
+ if (swizzle > 3) {
+ assert(0 && "invalid swizzle in emit_fetch()");
+ return bld->base.undef;
+ }
- switch (swizzle) {
- case TGSI_SWIZZLE_X:
- case TGSI_SWIZZLE_Y:
- case TGSI_SWIZZLE_Z:
- case TGSI_SWIZZLE_W:
+ if (reg->Register.Indirect) {
+ indirect_index = get_indirect_index(bld,
+ reg->Register.File,
+ reg->Register.Index,
+ ®->Indirect);
+ } else {
+ assert(reg->Register.Index <= bld->info->file_max[reg->Register.File]);
+ }
+ switch (reg->Register.File) {
+ case TGSI_FILE_CONSTANT:
if (reg->Register.Indirect) {
- LLVMTypeRef int_vec_type = lp_build_int_vec_type(bld->base.type);
- unsigned swizzle = tgsi_util_get_src_register_swizzle( ®->Indirect, chan_index );
- addr = LLVMBuildLoad(bld->base.builder,
- bld->addr[reg->Indirect.Index][swizzle],
- "");
- /* for indexing we want integers */
- addr = LLVMBuildFPToSI(bld->base.builder, addr,
- int_vec_type, "");
- addr = LLVMBuildExtractElement(bld->base.builder,
- addr, LLVMConstInt(LLVMInt32Type(), 0, 0),
- "");
- addr = lp_build_mul(&bld->base, addr, LLVMConstInt(LLVMInt32Type(), 4, 0));
- }
-
- switch (reg->Register.File) {
- case TGSI_FILE_CONSTANT: {
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), reg->Register.Index*4 + swizzle, 0);
+ LLVMValueRef swizzle_vec =
+ lp_build_const_int_vec(bld->base.gallivm, uint_bld->type, swizzle);
+ LLVMValueRef index_vec; /* index into the const buffer */
+
+ /* index_vec = indirect_index * 4 + swizzle */
+ index_vec = lp_build_shl_imm(uint_bld, indirect_index, 2);
+ index_vec = lp_build_add(uint_bld, index_vec, swizzle_vec);
+
+ /* Gather values from the constant buffer */
+ res = build_gather(bld, bld->consts_ptr, index_vec);
+ }
+ else {
+ LLVMValueRef index; /* index into the const buffer */
LLVMValueRef scalar, scalar_ptr;
- if (reg->Register.Indirect) {
- /*lp_build_printf(bld->base.builder,
- "\taddr = %d\n", addr);*/
- index = lp_build_add(&bld->base, index, addr);
- }
- scalar_ptr = LLVMBuildGEP(bld->base.builder, bld->consts_ptr, &index, 1, "");
- scalar = LLVMBuildLoad(bld->base.builder, scalar_ptr, "");
+ index = lp_build_const_int32(gallivm, reg->Register.Index*4 + swizzle);
+
+ scalar_ptr = LLVMBuildGEP(builder, bld->consts_ptr,
+ &index, 1, "");
+ scalar = LLVMBuildLoad(builder, scalar_ptr, "");
res = lp_build_broadcast_scalar(&bld->base, scalar);
- break;
}
+ break;
- case TGSI_FILE_IMMEDIATE:
- res = bld->immediates[reg->Register.Index][swizzle];
- assert(res);
- break;
+ case TGSI_FILE_IMMEDIATE:
+ res = bld->immediates[reg->Register.Index][swizzle];
+ assert(res);
+ break;
- case TGSI_FILE_INPUT:
- res = bld->inputs[reg->Register.Index][swizzle];
- assert(res);
- break;
+ case TGSI_FILE_INPUT:
+ if (reg->Register.Indirect) {
+ LLVMValueRef swizzle_vec =
+ lp_build_const_int_vec(gallivm, uint_bld->type, swizzle);
+ LLVMValueRef length_vec =
+ lp_build_const_int_vec(gallivm, uint_bld->type, bld->base.type.length);
+ LLVMValueRef index_vec; /* index into the const buffer */
+ LLVMValueRef inputs_array;
+ LLVMTypeRef float4_ptr_type;
+
+ /* index_vec = (indirect_index * 4 + swizzle) * length */
+ index_vec = lp_build_shl_imm(uint_bld, indirect_index, 2);
+ index_vec = lp_build_add(uint_bld, index_vec, swizzle_vec);
+ index_vec = lp_build_mul(uint_bld, index_vec, length_vec);
+
+ /* cast inputs_array pointer to float* */
+ float4_ptr_type = LLVMPointerType(LLVMFloatTypeInContext(gallivm->context), 0);
+ inputs_array = LLVMBuildBitCast(builder, bld->inputs_array,
+ float4_ptr_type, "");
+
+ /* Gather values from the temporary register array */
+ res = build_gather(bld, inputs_array, index_vec);
+ } else {
+ if (bld->indirect_files & (1 << TGSI_FILE_INPUT)) {
+ LLVMValueRef lindex = lp_build_const_int32(gallivm,
+ reg->Register.Index * 4 + swizzle);
+ LLVMValueRef input_ptr = LLVMBuildGEP(builder,
+ bld->inputs_array, &lindex, 1, "");
+ res = LLVMBuildLoad(builder, input_ptr, "");
+ }
+ else {
+ res = bld->inputs[reg->Register.Index][swizzle];
+ }
+ }
+ assert(res);
+ break;
- case TGSI_FILE_TEMPORARY: {
- LLVMValueRef temp_ptr = get_temp_ptr(bld, reg->Register.Index,
- swizzle,
- reg->Register.Indirect,
- addr);
- res = LLVMBuildLoad(bld->base.builder, temp_ptr, "");
- if(!res)
+ case TGSI_FILE_TEMPORARY:
+ if (reg->Register.Indirect) {
+ LLVMValueRef swizzle_vec =
+ lp_build_const_int_vec(bld->base.gallivm, uint_bld->type, swizzle);
+ LLVMValueRef length_vec =
+ lp_build_const_int_vec(bld->base.gallivm, uint_bld->type,
+ bld->base.type.length);
+ LLVMValueRef index_vec; /* index into the const buffer */
+ LLVMValueRef temps_array;
+ LLVMTypeRef float4_ptr_type;
+
+ /* index_vec = (indirect_index * 4 + swizzle) * length */
+ index_vec = lp_build_shl_imm(uint_bld, indirect_index, 2);
+ index_vec = lp_build_add(uint_bld, index_vec, swizzle_vec);
+ index_vec = lp_build_mul(uint_bld, index_vec, length_vec);
+
+ /* cast temps_array pointer to float* */
+ float4_ptr_type = LLVMPointerType(LLVMFloatTypeInContext(bld->base.gallivm->context), 0);
+ temps_array = LLVMBuildBitCast(builder, bld->temps_array,
+ float4_ptr_type, "");
+
+ /* Gather values from the temporary register array */
+ res = build_gather(bld, temps_array, index_vec);
+ }
+ else {
+ LLVMValueRef temp_ptr;
+ temp_ptr = get_temp_ptr(bld, reg->Register.Index, swizzle);
+ res = LLVMBuildLoad(builder, temp_ptr, "");
+ if (!res)
return bld->base.undef;
- break;
}
+ break;
- default:
- assert( 0 );
- return bld->base.undef;
+ case TGSI_FILE_SYSTEM_VALUE:
+ assert(!reg->Register.Indirect);
+ {
+ LLVMValueRef index; /* index into the system value array */
+ LLVMValueRef scalar, scalar_ptr;
+
+ index = lp_build_const_int32(gallivm,
+ reg->Register.Index * 4 + swizzle);
+
+ scalar_ptr = LLVMBuildGEP(builder, bld->system_values_array,
+ &index, 1, "");
+ scalar = LLVMBuildLoad(builder, scalar_ptr, "");
+
+ res = lp_build_broadcast_scalar(&bld->base, scalar);
}
break;
default:
- assert( 0 );
+ assert(0 && "invalid src register in emit_fetch()");
return bld->base.undef;
}
break;
case TGSI_UTIL_SIGN_SET:
- /* TODO: Use bitwese OR for floating point */
res = lp_build_abs( &bld->base, res );
- res = LLVMBuildNeg( bld->base.builder, res, "" );
- break;
-
+ /* fall through */
case TGSI_UTIL_SIGN_TOGGLE:
- res = LLVMBuildNeg( bld->base.builder, res, "" );
+ res = lp_build_negate( &bld->base, res );
break;
case TGSI_UTIL_SIGN_KEEP:
/* TODO: use interpolation coeffs for inputs */
if(ddx)
- *ddx = emit_ddx(bld, src);
+ *ddx = lp_build_ddx(&bld->base, src);
if(ddy)
- *ddy = emit_ddy(bld, src);
+ *ddy = lp_build_ddy(&bld->base, src);
+}
+
+
+/**
+ * Predicate.
+ */
+static void
+emit_fetch_predicate(
+ struct lp_build_tgsi_soa_context *bld,
+ const struct tgsi_full_instruction *inst,
+ LLVMValueRef *pred)
+{
+ LLVMBuilderRef builder = bld->base.gallivm->builder;
+ unsigned index;
+ unsigned char swizzles[4];
+ LLVMValueRef unswizzled[4] = {NULL, NULL, NULL, NULL};
+ LLVMValueRef value;
+ unsigned chan;
+
+ if (!inst->Instruction.Predicate) {
+ FOR_EACH_CHANNEL( chan ) {
+ pred[chan] = NULL;
+ }
+ return;
+ }
+
+ swizzles[0] = inst->Predicate.SwizzleX;
+ swizzles[1] = inst->Predicate.SwizzleY;
+ swizzles[2] = inst->Predicate.SwizzleZ;
+ swizzles[3] = inst->Predicate.SwizzleW;
+
+ index = inst->Predicate.Index;
+ assert(index < LP_MAX_TGSI_PREDS);
+
+ FOR_EACH_CHANNEL( chan ) {
+ unsigned swizzle = swizzles[chan];
+
+ /*
+ * Only fetch the predicate register channels that are actually listed
+ * in the swizzles
+ */
+ if (!unswizzled[swizzle]) {
+ value = LLVMBuildLoad(builder,
+ bld->preds[index][swizzle], "");
+
+ /*
+ * Convert the value to an integer mask.
+ *
+ * TODO: Short-circuit this comparison -- a D3D setp_xx instructions
+ * is needlessly causing two comparisons due to storing the intermediate
+ * result as float vector instead of an integer mask vector.
+ */
+ value = lp_build_compare(bld->base.gallivm,
+ bld->base.type,
+ PIPE_FUNC_NOTEQUAL,
+ value,
+ bld->base.zero);
+ if (inst->Predicate.Negate) {
+ value = LLVMBuildNot(builder, value, "");
+ }
+
+ unswizzled[swizzle] = value;
+ } else {
+ value = unswizzled[swizzle];
+ }
+
+ pred[chan] = value;
+ }
}
const struct tgsi_full_instruction *inst,
unsigned index,
unsigned chan_index,
+ LLVMValueRef pred,
LLVMValueRef value)
{
+ struct gallivm_state *gallivm = bld->base.gallivm;
+ LLVMBuilderRef builder = gallivm->builder;
const struct tgsi_full_dst_register *reg = &inst->Dst[index];
- LLVMValueRef addr;
+ struct lp_build_context *uint_bld = &bld->uint_bld;
+ LLVMValueRef indirect_index = NULL;
switch( inst->Instruction.Saturate ) {
case TGSI_SAT_NONE:
break;
case TGSI_SAT_MINUS_PLUS_ONE:
- value = lp_build_max(&bld->base, value, lp_build_const_vec(bld->base.type, -1.0));
+ value = lp_build_max(&bld->base, value, lp_build_const_vec(bld->base.gallivm, bld->base.type, -1.0));
value = lp_build_min(&bld->base, value, bld->base.one);
break;
}
if (reg->Register.Indirect) {
- LLVMTypeRef int_vec_type = lp_build_int_vec_type(bld->base.type);
- unsigned swizzle = tgsi_util_get_src_register_swizzle( ®->Indirect, chan_index );
- addr = LLVMBuildLoad(bld->base.builder,
- bld->addr[reg->Indirect.Index][swizzle],
- "");
- /* for indexing we want integers */
- addr = LLVMBuildFPToSI(bld->base.builder, addr,
- int_vec_type, "");
- addr = LLVMBuildExtractElement(bld->base.builder,
- addr, LLVMConstInt(LLVMInt32Type(), 0, 0),
- "");
- addr = lp_build_mul(&bld->base, addr, LLVMConstInt(LLVMInt32Type(), 4, 0));
+ indirect_index = get_indirect_index(bld,
+ reg->Register.File,
+ reg->Register.Index,
+ ®->Indirect);
+ } else {
+ assert(reg->Register.Index <= bld->info->file_max[reg->Register.File]);
}
switch( reg->Register.File ) {
case TGSI_FILE_OUTPUT:
- lp_exec_mask_store(&bld->exec_mask, value,
- bld->outputs[reg->Register.Index][chan_index]);
+ if (reg->Register.Indirect) {
+ LLVMValueRef chan_vec =
+ lp_build_const_int_vec(gallivm, uint_bld->type, chan_index);
+ LLVMValueRef length_vec =
+ lp_build_const_int_vec(gallivm, uint_bld->type, bld->base.type.length);
+ LLVMValueRef index_vec; /* indexes into the temp registers */
+ LLVMValueRef outputs_array;
+ LLVMValueRef pixel_offsets;
+ LLVMTypeRef float_ptr_type;
+ int i;
+
+ /* build pixel offset vector: {0, 1, 2, 3, ...} */
+ pixel_offsets = uint_bld->undef;
+ for (i = 0; i < bld->base.type.length; i++) {
+ LLVMValueRef ii = lp_build_const_int32(gallivm, i);
+ pixel_offsets = LLVMBuildInsertElement(builder, pixel_offsets,
+ ii, ii, "");
+ }
+
+ /* index_vec = (indirect_index * 4 + chan_index) * length + offsets */
+ index_vec = lp_build_shl_imm(uint_bld, indirect_index, 2);
+ index_vec = lp_build_add(uint_bld, index_vec, chan_vec);
+ index_vec = lp_build_mul(uint_bld, index_vec, length_vec);
+ index_vec = lp_build_add(uint_bld, index_vec, pixel_offsets);
+
+ float_ptr_type =
+ LLVMPointerType(LLVMFloatTypeInContext(gallivm->context), 0);
+ outputs_array = LLVMBuildBitCast(builder, bld->outputs_array,
+ float_ptr_type, "");
+
+ /* Scatter store values into temp registers */
+ emit_mask_scatter(bld, outputs_array, index_vec, value,
+ &bld->exec_mask, pred);
+ }
+ else {
+ LLVMValueRef out_ptr = get_output_ptr(bld, reg->Register.Index,
+ chan_index);
+ lp_exec_mask_store(&bld->exec_mask, pred, value, out_ptr);
+ }
break;
- case TGSI_FILE_TEMPORARY: {
- LLVMValueRef temp_ptr = get_temp_ptr(bld, reg->Register.Index,
- chan_index,
- reg->Register.Indirect,
- addr);
- lp_exec_mask_store(&bld->exec_mask, value, temp_ptr);
+ case TGSI_FILE_TEMPORARY:
+ if (reg->Register.Indirect) {
+ LLVMValueRef chan_vec =
+ lp_build_const_int_vec(gallivm, uint_bld->type, chan_index);
+ LLVMValueRef length_vec =
+ lp_build_const_int_vec(gallivm, uint_bld->type,
+ bld->base.type.length);
+ LLVMValueRef index_vec; /* indexes into the temp registers */
+ LLVMValueRef temps_array;
+ LLVMValueRef pixel_offsets;
+ LLVMTypeRef float_ptr_type;
+ int i;
+
+ /* build pixel offset vector: {0, 1, 2, 3, ...} */
+ pixel_offsets = uint_bld->undef;
+ for (i = 0; i < bld->base.type.length; i++) {
+ LLVMValueRef ii = lp_build_const_int32(gallivm, i);
+ pixel_offsets = LLVMBuildInsertElement(builder, pixel_offsets,
+ ii, ii, "");
+ }
+
+ /* index_vec = (indirect_index * 4 + chan_index) * length + offsets */
+ index_vec = lp_build_shl_imm(uint_bld, indirect_index, 2);
+ index_vec = lp_build_add(uint_bld, index_vec, chan_vec);
+ index_vec = lp_build_mul(uint_bld, index_vec, length_vec);
+ index_vec = lp_build_add(uint_bld, index_vec, pixel_offsets);
+
+ float_ptr_type =
+ LLVMPointerType(LLVMFloatTypeInContext(gallivm->context), 0);
+ temps_array = LLVMBuildBitCast(builder, bld->temps_array,
+ float_ptr_type, "");
+
+ /* Scatter store values into temp registers */
+ emit_mask_scatter(bld, temps_array, index_vec, value,
+ &bld->exec_mask, pred);
+ }
+ else {
+ LLVMValueRef temp_ptr = get_temp_ptr(bld, reg->Register.Index,
+ chan_index);
+ lp_exec_mask_store(&bld->exec_mask, pred, value, temp_ptr);
+ }
break;
- }
case TGSI_FILE_ADDRESS:
- lp_exec_mask_store(&bld->exec_mask, value,
- bld->addr[reg->Indirect.Index][chan_index]);
+ lp_exec_mask_store(&bld->exec_mask, pred, value,
+ bld->addr[reg->Register.Index][chan_index]);
break;
case TGSI_FILE_PREDICATE:
- /* FIXME */
- assert(0);
+ lp_exec_mask_store(&bld->exec_mask, pred, value,
+ bld->preds[reg->Register.Index][chan_index]);
break;
default:
* High-level instruction translators.
*/
-
static void
emit_tex( struct lp_build_tgsi_soa_context *bld,
const struct tgsi_full_instruction *inst,
- boolean apply_lodbias,
- boolean projected,
+ enum lp_build_tex_modifier modifier,
LLVMValueRef *texel)
{
- const uint unit = inst->Src[1].Register.Index;
- LLVMValueRef lodbias;
+ LLVMBuilderRef builder = bld->base.gallivm->builder;
+ unsigned unit;
+ LLVMValueRef lod_bias, explicit_lod;
LLVMValueRef oow = NULL;
LLVMValueRef coords[3];
+ LLVMValueRef ddx[3];
+ LLVMValueRef ddy[3];
unsigned num_coords;
unsigned i;
+ if (!bld->sampler) {
+ _debug_printf("warning: found texture instruction but no sampler generator supplied\n");
+ for (i = 0; i < 4; i++) {
+ texel[i] = bld->base.undef;
+ }
+ return;
+ }
+
switch (inst->Texture.Texture) {
case TGSI_TEXTURE_1D:
num_coords = 1;
return;
}
- if(apply_lodbias)
- lodbias = emit_fetch( bld, inst, 0, 3 );
- else
- lodbias = bld->base.zero;
+ if (modifier == LP_BLD_TEX_MODIFIER_LOD_BIAS) {
+ lod_bias = emit_fetch( bld, inst, 0, 3 );
+ explicit_lod = NULL;
+ }
+ else if (modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_LOD) {
+ lod_bias = NULL;
+ explicit_lod = emit_fetch( bld, inst, 0, 3 );
+ }
+ else {
+ lod_bias = NULL;
+ explicit_lod = NULL;
+ }
- if (projected) {
+ if (modifier == LP_BLD_TEX_MODIFIER_PROJECTED) {
oow = emit_fetch( bld, inst, 0, 3 );
oow = lp_build_rcp(&bld->base, oow);
}
for (i = 0; i < num_coords; i++) {
coords[i] = emit_fetch( bld, inst, 0, i );
- if (projected)
+ if (modifier == LP_BLD_TEX_MODIFIER_PROJECTED)
coords[i] = lp_build_mul(&bld->base, coords[i], oow);
}
for (i = num_coords; i < 3; i++) {
coords[i] = bld->base.undef;
}
+ if (modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
+ LLVMValueRef index0 = lp_build_const_int32(bld->base.gallivm, 0);
+ for (i = 0; i < num_coords; i++) {
+ LLVMValueRef src1 = emit_fetch( bld, inst, 1, i );
+ LLVMValueRef src2 = emit_fetch( bld, inst, 2, i );
+ ddx[i] = LLVMBuildExtractElement(builder, src1, index0, "");
+ ddy[i] = LLVMBuildExtractElement(builder, src2, index0, "");
+ }
+ unit = inst->Src[3].Register.Index;
+ } else {
+ for (i = 0; i < num_coords; i++) {
+ ddx[i] = lp_build_scalar_ddx( &bld->base, coords[i] );
+ ddy[i] = lp_build_scalar_ddy( &bld->base, coords[i] );
+ }
+ unit = inst->Src[1].Register.Index;
+ }
+ for (i = num_coords; i < 3; i++) {
+ ddx[i] = LLVMGetUndef(bld->base.elem_type);
+ ddy[i] = LLVMGetUndef(bld->base.elem_type);
+ }
+
bld->sampler->emit_fetch_texel(bld->sampler,
- bld->base.builder,
+ bld->base.gallivm,
bld->base.type,
- unit, num_coords, coords, lodbias,
+ unit, num_coords, coords,
+ ddx, ddy,
+ lod_bias, explicit_lod,
texel);
}
+static boolean
+near_end_of_shader(struct lp_build_tgsi_soa_context *bld,
+ int pc)
+{
+ int i;
+
+ for (i = 0; i < 5; i++) {
+ unsigned opcode;
+
+ if (pc + i >= bld->info->num_instructions)
+ return TRUE;
+
+ opcode = bld->instructions[pc + i].Instruction.Opcode;
+
+ if (opcode == TGSI_OPCODE_END)
+ return TRUE;
+
+ if (opcode == TGSI_OPCODE_TEX ||
+ opcode == TGSI_OPCODE_TXP ||
+ opcode == TGSI_OPCODE_TXD ||
+ opcode == TGSI_OPCODE_TXB ||
+ opcode == TGSI_OPCODE_TXL ||
+ opcode == TGSI_OPCODE_TXF ||
+ opcode == TGSI_OPCODE_TXQ ||
+ opcode == TGSI_OPCODE_CAL ||
+ opcode == TGSI_OPCODE_CALLNZ ||
+ opcode == TGSI_OPCODE_IF ||
+ opcode == TGSI_OPCODE_IFC ||
+ opcode == TGSI_OPCODE_BGNLOOP ||
+ opcode == TGSI_OPCODE_SWITCH)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
/**
* Kill fragment if any of the src register values are negative.
static void
emit_kil(
struct lp_build_tgsi_soa_context *bld,
- const struct tgsi_full_instruction *inst )
+ const struct tgsi_full_instruction *inst,
+ int pc)
{
+ LLVMBuilderRef builder = bld->base.gallivm->builder;
const struct tgsi_full_src_register *reg = &inst->Src[0];
LLVMValueRef terms[NUM_CHANNELS];
LLVMValueRef mask;
chan_mask = lp_build_cmp(&bld->base, PIPE_FUNC_GEQUAL, terms[chan_index], bld->base.zero);
if(mask)
- mask = LLVMBuildAnd(bld->base.builder, mask, chan_mask, "");
+ mask = LLVMBuildAnd(builder, mask, chan_mask, "");
else
mask = chan_mask;
}
}
- if(mask)
+ if(mask) {
lp_build_mask_update(bld->mask, mask);
+
+ if (!near_end_of_shader(bld, pc))
+ lp_build_mask_check(bld->mask);
+ }
}
*/
static void
emit_kilp(struct lp_build_tgsi_soa_context *bld,
- const struct tgsi_full_instruction *inst)
+ const struct tgsi_full_instruction *inst,
+ int pc)
{
+ LLVMBuilderRef builder = bld->base.gallivm->builder;
LLVMValueRef mask;
/* For those channels which are "alive", disable fragment shader
* execution.
*/
if (bld->exec_mask.has_mask) {
- mask = LLVMBuildNot(bld->base.builder, bld->exec_mask.exec_mask, "kilp");
+ mask = LLVMBuildNot(builder, bld->exec_mask.exec_mask, "kilp");
}
else {
- mask = bld->base.zero;
+ LLVMValueRef zero = LLVMConstNull(bld->base.int_vec_type);
+ mask = zero;
}
lp_build_mask_update(bld->mask, mask);
+
+ if (!near_end_of_shader(bld, pc))
+ lp_build_mask_check(bld->mask);
+}
+
+
+/**
+ * Emit code which will dump the value of all the temporary registers
+ * to stdout.
+ */
+static void
+emit_dump_temps(struct lp_build_tgsi_soa_context *bld)
+{
+ struct gallivm_state *gallivm = bld->base.gallivm;
+ LLVMBuilderRef builder = gallivm->builder;
+ LLVMValueRef temp_ptr;
+ LLVMValueRef i0 = lp_build_const_int32(gallivm, 0);
+ LLVMValueRef i1 = lp_build_const_int32(gallivm, 1);
+ LLVMValueRef i2 = lp_build_const_int32(gallivm, 2);
+ LLVMValueRef i3 = lp_build_const_int32(gallivm, 3);
+ int index;
+ int n = bld->info->file_max[TGSI_FILE_TEMPORARY];
+
+ for (index = 0; index < n; index++) {
+ LLVMValueRef idx = lp_build_const_int32(gallivm, index);
+ LLVMValueRef v[4][4], res;
+ int chan;
+
+ lp_build_printf(gallivm, "TEMP[%d]:\n", idx);
+
+ for (chan = 0; chan < 4; chan++) {
+ temp_ptr = get_temp_ptr(bld, index, chan);
+ res = LLVMBuildLoad(builder, temp_ptr, "");
+ v[chan][0] = LLVMBuildExtractElement(builder, res, i0, "");
+ v[chan][1] = LLVMBuildExtractElement(builder, res, i1, "");
+ v[chan][2] = LLVMBuildExtractElement(builder, res, i2, "");
+ v[chan][3] = LLVMBuildExtractElement(builder, res, i3, "");
+ }
+
+ lp_build_printf(gallivm, " X: %f %f %f %f\n",
+ v[0][0], v[0][1], v[0][2], v[0][3]);
+ lp_build_printf(gallivm, " Y: %f %f %f %f\n",
+ v[1][0], v[1][1], v[1][2], v[1][3]);
+ lp_build_printf(gallivm, " Z: %f %f %f %f\n",
+ v[2][0], v[2][1], v[2][2], v[2][3]);
+ lp_build_printf(gallivm, " W: %f %f %f %f\n",
+ v[3][0], v[3][1], v[3][2], v[3][3]);
+ }
}
-static int
+
+
+static void
emit_declaration(
struct lp_build_tgsi_soa_context *bld,
const struct tgsi_full_declaration *decl)
{
- LLVMTypeRef vec_type = lp_build_vec_type(bld->base.type);
-
- unsigned first = decl->Range.First;
- unsigned last = decl->Range.Last;
+ struct gallivm_state *gallivm = bld->base.gallivm;
+ LLVMTypeRef vec_type = bld->base.vec_type;
+ const unsigned first = decl->Range.First;
+ const unsigned last = decl->Range.Last;
unsigned idx, i;
for (idx = first; idx <= last; ++idx) {
+ assert(last <= bld->info->file_max[decl->Declaration.File]);
switch (decl->Declaration.File) {
case TGSI_FILE_TEMPORARY:
- if (bld->has_indirect_addressing) {
- LLVMValueRef val = LLVMConstInt(LLVMInt32Type(),
- last*4 + 4, 0);
- bld->temps_array = lp_build_array_alloca(bld->base.builder,
- vec_type, val, "");
- } else {
+ assert(idx < LP_MAX_TGSI_TEMPS);
+ if (!(bld->indirect_files & (1 << TGSI_FILE_TEMPORARY))) {
for (i = 0; i < NUM_CHANNELS; i++)
- bld->temps[idx][i] = lp_build_alloca(bld->base.builder,
- vec_type, "");
+ bld->temps[idx][i] = lp_build_alloca(gallivm, vec_type, "temp");
}
break;
case TGSI_FILE_OUTPUT:
- for (i = 0; i < NUM_CHANNELS; i++)
- bld->outputs[idx][i] = lp_build_alloca(bld->base.builder,
- vec_type, "");
+ if (!(bld->indirect_files & (1 << TGSI_FILE_OUTPUT))) {
+ for (i = 0; i < NUM_CHANNELS; i++)
+ bld->outputs[idx][i] = lp_build_alloca(gallivm,
+ vec_type, "output");
+ }
break;
case TGSI_FILE_ADDRESS:
+ assert(idx < LP_MAX_TGSI_ADDRS);
+ for (i = 0; i < NUM_CHANNELS; i++)
+ bld->addr[idx][i] = lp_build_alloca(gallivm, vec_type, "addr");
+ break;
+
+ case TGSI_FILE_PREDICATE:
+ assert(idx < LP_MAX_TGSI_PREDS);
for (i = 0; i < NUM_CHANNELS; i++)
- bld->addr[idx][i] = lp_build_alloca(bld->base.builder,
- vec_type, "");
+ bld->preds[idx][i] = lp_build_alloca(gallivm, vec_type,
+ "predicate");
break;
default:
break;
}
}
-
- return TRUE;
}
emit_instruction(
struct lp_build_tgsi_soa_context *bld,
const struct tgsi_full_instruction *inst,
- const struct tgsi_opcode_info *info)
+ const struct tgsi_opcode_info *info,
+ int *pc)
{
unsigned chan_index;
LLVMValueRef src0, src1, src2;
* redundant code.
*/
+ (*pc)++;
+
assert(info->num_dst <= 1);
- if(info->num_dst) {
+ if (info->num_dst) {
FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
dst0[chan_index] = bld->base.undef;
}
src0 = emit_fetch( bld, inst, 0, chan_index );
src1 = emit_fetch( bld, inst, 1, chan_index );
src2 = emit_fetch( bld, inst, 2, chan_index );
- tmp1 = lp_build_const_vec(bld->base.type, 0.5);
+ tmp1 = lp_build_const_vec(bld->base.gallivm, bld->base.type, 0.5);
tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_GREATER, src2, tmp1);
dst0[chan_index] = lp_build_select( &bld->base, tmp0, src0, src1 );
}
case TGSI_OPCODE_KILP:
/* predicated kill */
- emit_kilp( bld, inst );
+ emit_kilp( bld, inst, (*pc)-1 );
break;
case TGSI_OPCODE_KIL:
/* conditional kill */
- emit_kil( bld, inst );
+ emit_kil( bld, inst, (*pc)-1 );
break;
case TGSI_OPCODE_PK2H:
break;
case TGSI_OPCODE_TEX:
- emit_tex( bld, inst, FALSE, FALSE, dst0 );
+ emit_tex( bld, inst, LP_BLD_TEX_MODIFIER_NONE, dst0 );
break;
case TGSI_OPCODE_TXD:
- /* FIXME */
- return FALSE;
+ emit_tex( bld, inst, LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV, dst0 );
break;
case TGSI_OPCODE_UP2H:
break;
case TGSI_OPCODE_CAL:
- /* FIXME */
- return FALSE;
+ lp_exec_mask_call(&bld->exec_mask,
+ inst->Label.Label,
+ pc);
+
break;
case TGSI_OPCODE_RET:
- /* FIXME */
- return FALSE;
+ lp_exec_mask_ret(&bld->exec_mask, pc);
break;
case TGSI_OPCODE_END:
+ if (0) {
+ /* for debugging */
+ emit_dump_temps(bld);
+ }
+ *pc = -1;
break;
case TGSI_OPCODE_SSG:
break;
case TGSI_OPCODE_TXB:
- emit_tex( bld, inst, TRUE, FALSE, dst0 );
+ emit_tex( bld, inst, LP_BLD_TEX_MODIFIER_LOD_BIAS, dst0 );
break;
case TGSI_OPCODE_NRM:
break;
case TGSI_OPCODE_TXL:
- emit_tex( bld, inst, TRUE, FALSE, dst0 );
+ emit_tex( bld, inst, LP_BLD_TEX_MODIFIER_EXPLICIT_LOD, dst0 );
break;
case TGSI_OPCODE_TXP:
- emit_tex( bld, inst, FALSE, TRUE, dst0 );
+ emit_tex( bld, inst, LP_BLD_TEX_MODIFIER_PROJECTED, dst0 );
break;
case TGSI_OPCODE_BRK:
lp_exec_bgnloop(&bld->exec_mask);
break;
+ case TGSI_OPCODE_BGNSUB:
+ lp_exec_mask_bgnsub(&bld->exec_mask);
+ break;
+
case TGSI_OPCODE_ELSE:
lp_exec_mask_cond_invert(&bld->exec_mask);
break;
break;
case TGSI_OPCODE_ENDLOOP:
- lp_exec_endloop(&bld->exec_mask);
+ lp_exec_endloop(bld->base.gallivm, &bld->exec_mask);
+ break;
+
+ case TGSI_OPCODE_ENDSUB:
+ lp_exec_mask_endsub(&bld->exec_mask, pc);
break;
case TGSI_OPCODE_PUSHA:
}
if(info->num_dst) {
+ LLVMValueRef pred[NUM_CHANNELS];
+
+ emit_fetch_predicate( bld, inst, pred );
+
FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
- emit_store( bld, inst, 0, chan_index, dst0[chan_index]);
+ emit_store( bld, inst, 0, chan_index, pred[chan_index], dst0[chan_index]);
}
}
void
-lp_build_tgsi_soa(LLVMBuilderRef builder,
+lp_build_tgsi_soa(struct gallivm_state *gallivm,
const struct tgsi_token *tokens,
struct lp_type type,
struct lp_build_mask_context *mask,
LLVMValueRef consts_ptr,
+ LLVMValueRef system_values_array,
const LLVMValueRef *pos,
const LLVMValueRef (*inputs)[NUM_CHANNELS],
LLVMValueRef (*outputs)[NUM_CHANNELS],
struct lp_build_sampler_soa *sampler,
- struct tgsi_shader_info *info)
+ const struct tgsi_shader_info *info)
{
struct lp_build_tgsi_soa_context bld;
struct tgsi_parse_context parse;
uint num_immediates = 0;
+ uint num_instructions = 0;
unsigned i;
+ int pc = 0;
+
+ struct lp_type res_type;
+
+ assert(type.length <= LP_MAX_VECTOR_LENGTH);
+ memset(&res_type, 0, sizeof res_type);
+ res_type.width = type.width;
+ res_type.length = type.length;
+ res_type.sign = 1;
/* Setup build context */
memset(&bld, 0, sizeof bld);
- lp_build_context_init(&bld.base, builder, type);
+ lp_build_context_init(&bld.base, gallivm, type);
+ lp_build_context_init(&bld.uint_bld, gallivm, lp_uint_type(type));
+ lp_build_context_init(&bld.elem_bld, gallivm, lp_elem_type(type));
bld.mask = mask;
bld.pos = pos;
bld.inputs = inputs;
bld.outputs = outputs;
bld.consts_ptr = consts_ptr;
bld.sampler = sampler;
- bld.has_indirect_addressing = info->opcode_count[TGSI_OPCODE_ARR] > 0 ||
- info->opcode_count[TGSI_OPCODE_ARL] > 0;
+ bld.info = info;
+ bld.indirect_files = info->indirect_files;
+ bld.instructions = (struct tgsi_full_instruction *)
+ MALLOC( LP_MAX_INSTRUCTIONS * sizeof(struct tgsi_full_instruction) );
+ bld.max_instructions = LP_MAX_INSTRUCTIONS;
+
+ if (!bld.instructions) {
+ return;
+ }
lp_exec_mask_init(&bld.exec_mask, &bld.base);
+ if (bld.indirect_files & (1 << TGSI_FILE_TEMPORARY)) {
+ LLVMValueRef array_size =
+ lp_build_const_int32(gallivm,
+ info->file_max[TGSI_FILE_TEMPORARY] * 4 + 4);
+ bld.temps_array = lp_build_array_alloca(gallivm,
+ bld.base.vec_type, array_size,
+ "temp_array");
+ }
+
+ if (bld.indirect_files & (1 << TGSI_FILE_OUTPUT)) {
+ LLVMValueRef array_size =
+ lp_build_const_int32(gallivm,
+ info->file_max[TGSI_FILE_OUTPUT] * 4 + 4);
+ bld.outputs_array = lp_build_array_alloca(gallivm,
+ bld.base.vec_type, array_size,
+ "output_array");
+ }
+
+ /* If we have indirect addressing in inputs we need to copy them into
+ * our alloca array to be able to iterate over them */
+ if (bld.indirect_files & (1 << TGSI_FILE_INPUT)) {
+ unsigned index, chan;
+ LLVMTypeRef vec_type = bld.base.vec_type;
+ LLVMValueRef array_size =
+ lp_build_const_int32(gallivm, info->file_max[TGSI_FILE_INPUT]*4 + 4);
+ bld.inputs_array = lp_build_array_alloca(gallivm,
+ vec_type, array_size,
+ "input_array");
+
+ assert(info->num_inputs <= info->file_max[TGSI_FILE_INPUT] + 1);
+
+ for (index = 0; index < info->num_inputs; ++index) {
+ for (chan = 0; chan < NUM_CHANNELS; ++chan) {
+ LLVMValueRef lindex =
+ lp_build_const_int32(gallivm, index * 4 + chan);
+ LLVMValueRef input_ptr =
+ LLVMBuildGEP(gallivm->builder, bld.inputs_array,
+ &lindex, 1, "");
+ LLVMValueRef value = bld.inputs[index][chan];
+ if (value)
+ LLVMBuildStore(gallivm->builder, value, input_ptr);
+ }
+ }
+ }
+
+ bld.system_values_array = system_values_array;
+
tgsi_parse_init( &parse, tokens );
while( !tgsi_parse_end_of_tokens( &parse ) ) {
switch( parse.FullToken.Token.Type ) {
case TGSI_TOKEN_TYPE_DECLARATION:
/* Inputs already interpolated */
- {
- if (!emit_declaration( &bld, &parse.FullToken.FullDeclaration ))
- _debug_printf("warning: failed to define LLVM variable\n");
- }
+ emit_declaration( &bld, &parse.FullToken.FullDeclaration );
break;
case TGSI_TOKEN_TYPE_INSTRUCTION:
{
- unsigned opcode = parse.FullToken.FullInstruction.Instruction.Opcode;
- const struct tgsi_opcode_info *opcode_info = tgsi_get_opcode_info(opcode);
- if (!emit_instruction( &bld, &parse.FullToken.FullInstruction, opcode_info ))
- _debug_printf("warning: failed to translate tgsi opcode %s to LLVM\n",
- opcode_info->mnemonic);
+ /* save expanded instruction */
+ if (num_instructions == bld.max_instructions) {
+ struct tgsi_full_instruction *instructions;
+ instructions = REALLOC(bld.instructions,
+ bld.max_instructions
+ * sizeof(struct tgsi_full_instruction),
+ (bld.max_instructions + LP_MAX_INSTRUCTIONS)
+ * sizeof(struct tgsi_full_instruction));
+ if (!instructions) {
+ break;
+ }
+ bld.instructions = instructions;
+ bld.max_instructions += LP_MAX_INSTRUCTIONS;
+ }
+
+ memcpy(bld.instructions + num_instructions,
+ &parse.FullToken.FullInstruction,
+ sizeof(bld.instructions[0]));
+
+ num_instructions++;
}
break;
{
const uint size = parse.FullToken.FullImmediate.Immediate.NrTokens - 1;
assert(size <= 4);
- assert(num_immediates < LP_MAX_IMMEDIATES);
+ assert(num_immediates < LP_MAX_TGSI_IMMEDIATES);
for( i = 0; i < size; ++i )
bld.immediates[num_immediates][i] =
- lp_build_const_vec(type, parse.FullToken.FullImmediate.u[i].Float);
+ lp_build_const_vec(gallivm, type, parse.FullToken.FullImmediate.u[i].Float);
for( i = size; i < 4; ++i )
bld.immediates[num_immediates][i] = bld.base.undef;
num_immediates++;
assert( 0 );
}
}
+
+ while (pc != -1) {
+ struct tgsi_full_instruction *instr = bld.instructions + pc;
+ const struct tgsi_opcode_info *opcode_info =
+ tgsi_get_opcode_info(instr->Instruction.Opcode);
+ if (!emit_instruction( &bld, instr, opcode_info, &pc ))
+ _debug_printf("warning: failed to translate tgsi opcode %s to LLVM\n",
+ opcode_info->mnemonic);
+ }
+
+ /* If we have indirect addressing in outputs we need to copy our alloca array
+ * to the outputs slots specified by the called */
+ if (bld.indirect_files & (1 << TGSI_FILE_OUTPUT)) {
+ unsigned index, chan;
+ assert(info->num_outputs <= info->file_max[TGSI_FILE_OUTPUT] + 1);
+ for (index = 0; index < info->num_outputs; ++index) {
+ for (chan = 0; chan < NUM_CHANNELS; ++chan) {
+ bld.outputs[index][chan] = get_output_ptr(&bld, index, chan);
+ }
+ }
+ }
+
if (0) {
- LLVMBasicBlockRef block = LLVMGetInsertBlock(builder);
+ LLVMBasicBlockRef block = LLVMGetInsertBlock(gallivm->builder);
LLVMValueRef function = LLVMGetBasicBlockParent(block);
debug_printf("11111111111111111111111111111 \n");
tgsi_dump(tokens, 0);
- LLVMDumpValue(function);
+ lp_debug_dump_value(function);
debug_printf("2222222222222222222222222222 \n");
}
tgsi_parse_free( &parse );
+
+ if (0) {
+ LLVMModuleRef module = LLVMGetGlobalParent(
+ LLVMGetBasicBlockParent(LLVMGetInsertBlock(gallivm->builder)));
+ LLVMDumpModule(module);
+
+ }
+
+ FREE( bld.instructions );
}
+
+/**
+ * Build up the system values array out of individual values such as
+ * the instance ID, front-face, primitive ID, etc. The shader info is
+ * used to determine which system values are needed and where to put
+ * them in the system values array.
+ *
+ * XXX only instance ID is implemented at this time.
+ *
+ * The system values register file is similar to the constants buffer.
+ * Example declaration:
+ * DCL SV[0], INSTANCEID
+ * Example instruction:
+ * MOVE foo, SV[0].xxxx;
+ *
+ * \return LLVM float array (interpreted as float [][4])
+ */
+LLVMValueRef
+lp_build_system_values_array(struct gallivm_state *gallivm,
+ const struct tgsi_shader_info *info,
+ LLVMValueRef instance_id,
+ LLVMValueRef facing)
+{
+ LLVMValueRef size = lp_build_const_int32(gallivm, 4 * info->num_system_values);
+ LLVMTypeRef float_t = LLVMFloatTypeInContext(gallivm->context);
+ LLVMValueRef array = lp_build_array_alloca(gallivm, float_t,
+ size, "sysvals_array");
+ unsigned i;
+
+ for (i = 0; i < info->num_system_values; i++) {
+ LLVMValueRef index = lp_build_const_int32(gallivm, i * 4);
+ LLVMValueRef ptr, value;
+
+ switch (info->system_value_semantic_name[i]) {
+ case TGSI_SEMANTIC_INSTANCEID:
+ /* convert instance ID from int to float */
+ value = LLVMBuildSIToFP(gallivm->builder, instance_id, float_t,
+ "sysval_instanceid");
+ break;
+ case TGSI_SEMANTIC_FACE:
+ /* fall-through */
+ default:
+ assert(0 && "unexpected semantic in build_system_values_array()");
+ }
+
+ ptr = LLVMBuildGEP(gallivm->builder, array, &index, 1, "");
+ LLVMBuildStore(gallivm->builder, value, ptr);
+ }
+
+ return array;
+}
projects / mesa.git / blobdiff