#include <float.h>
#include "util/u_debug.h"
+#include "util/u_math.h"
+#include "util/u_half.h"
#include "lp_bld_type.h"
#include "lp_bld_const.h"
+#include "lp_bld_init.h"
unsigned
if(type.floating) {
switch(type.width) {
+ case 16:
+ return 10;
case 32:
return 23;
case 64:
- return 53;
+ return 52;
default:
assert(0);
return 0;
if (type.floating) {
switch(type.width) {
+ case 16:
+ return -65504;
case 32:
return -FLT_MAX;
case 64:
if (type.floating) {
switch(type.width) {
+ case 16:
+ return 65504;
case 32:
return FLT_MAX;
case 64:
{
if (type.floating) {
switch(type.width) {
+ case 16:
+ return 2E-10;
case 32:
return FLT_EPSILON;
case 64:
LLVMValueRef
-lp_build_undef(struct lp_type type)
+lp_build_undef(struct gallivm_state *gallivm, struct lp_type type)
{
- LLVMTypeRef vec_type = lp_build_vec_type(type);
+ LLVMTypeRef vec_type = lp_build_vec_type(gallivm, type);
return LLVMGetUndef(vec_type);
}
LLVMValueRef
-lp_build_zero(struct lp_type type)
+lp_build_zero(struct gallivm_state *gallivm, struct lp_type type)
{
if (type.length == 1) {
if (type.floating)
- return LLVMConstReal(LLVMFloatType(), 0.0);
+ return lp_build_const_float(gallivm, 0.0);
else
- return LLVMConstInt(LLVMIntType(type.width), 0, 0);
+ return LLVMConstInt(LLVMIntTypeInContext(gallivm->context, type.width), 0, 0);
}
else {
- LLVMTypeRef vec_type = lp_build_vec_type(type);
+ LLVMTypeRef vec_type = lp_build_vec_type(gallivm, type);
return LLVMConstNull(vec_type);
}
}
LLVMValueRef
-lp_build_one(struct lp_type type)
+lp_build_one(struct gallivm_state *gallivm, struct lp_type type)
{
LLVMTypeRef elem_type;
LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
assert(type.length <= LP_MAX_VECTOR_LENGTH);
- elem_type = lp_build_elem_type(type);
+ elem_type = lp_build_elem_type(gallivm, type);
- if(type.floating)
+ if(type.floating && type.width == 16)
+ elems[0] = LLVMConstInt(elem_type, util_float_to_half(1.0f), 0);
+ else if(type.floating)
elems[0] = LLVMConstReal(elem_type, 1.0);
else if(type.fixed)
elems[0] = LLVMConstInt(elem_type, 1LL << (type.width/2), 0);
* Build constant-valued element from a scalar value.
*/
LLVMValueRef
-lp_build_const_elem(struct lp_type type,
+lp_build_const_elem(struct gallivm_state *gallivm,
+ struct lp_type type,
double val)
{
- LLVMTypeRef elem_type = lp_build_elem_type(type);
+ LLVMTypeRef elem_type = lp_build_elem_type(gallivm, type);
LLVMValueRef elem;
- if(type.floating) {
+ if(type.floating && type.width == 16) {
+ elem = LLVMConstInt(elem_type, util_float_to_half((float)val), 0);
+ } else if(type.floating) {
elem = LLVMConstReal(elem_type, val);
}
else {
double dscale = lp_const_scale(type);
- elem = LLVMConstInt(elem_type, val*dscale + 0.5, 0);
+ elem = LLVMConstInt(elem_type, round(val*dscale), 0);
}
return elem;
* Build constant-valued vector from a scalar value.
*/
LLVMValueRef
-lp_build_const_vec(struct lp_type type,
+lp_build_const_vec(struct gallivm_state *gallivm, struct lp_type type,
double val)
{
if (type.length == 1) {
- return lp_build_const_elem(type, val);
+ return lp_build_const_elem(gallivm, type, val);
} else {
LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
unsigned i;
- elems[0] = lp_build_const_elem(type, val);
+ elems[0] = lp_build_const_elem(gallivm, type, val);
for(i = 1; i < type.length; ++i)
elems[i] = elems[0];
return LLVMConstVector(elems, type.length);
LLVMValueRef
-lp_build_const_int_vec(struct lp_type type,
- long long val)
+lp_build_const_int_vec(struct gallivm_state *gallivm, struct lp_type type,
+ long long val)
{
- LLVMTypeRef elem_type = lp_build_int_elem_type(type);
+ LLVMTypeRef elem_type = lp_build_int_elem_type(gallivm, type);
LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
unsigned i;
LLVMValueRef
-lp_build_const_aos(struct lp_type type,
+lp_build_const_aos(struct gallivm_state *gallivm,
+ struct lp_type type,
double r, double g, double b, double a,
const unsigned char *swizzle)
{
assert(type.length % 4 == 0);
assert(type.length <= LP_MAX_VECTOR_LENGTH);
- elem_type = lp_build_elem_type(type);
+ elem_type = lp_build_elem_type(gallivm, type);
if(swizzle == NULL)
swizzle = default_swizzle;
- if(type.floating) {
- elems[swizzle[0]] = LLVMConstReal(elem_type, r);
- elems[swizzle[1]] = LLVMConstReal(elem_type, g);
- elems[swizzle[2]] = LLVMConstReal(elem_type, b);
- elems[swizzle[3]] = LLVMConstReal(elem_type, a);
- }
- else {
- double dscale = lp_const_scale(type);
-
- elems[swizzle[0]] = LLVMConstInt(elem_type, r*dscale + 0.5, 0);
- elems[swizzle[1]] = LLVMConstInt(elem_type, g*dscale + 0.5, 0);
- elems[swizzle[2]] = LLVMConstInt(elem_type, b*dscale + 0.5, 0);
- elems[swizzle[3]] = LLVMConstInt(elem_type, a*dscale + 0.5, 0);
- }
+ elems[swizzle[0]] = lp_build_const_elem(gallivm, type, r);
+ elems[swizzle[1]] = lp_build_const_elem(gallivm, type, g);
+ elems[swizzle[2]] = lp_build_const_elem(gallivm, type, b);
+ elems[swizzle[3]] = lp_build_const_elem(gallivm, type, a);
for(i = 4; i < type.length; ++i)
elems[i] = elems[i % 4];
}
+/**
+ * @param mask TGSI_WRITEMASK_xxx
+ */
LLVMValueRef
-lp_build_const_mask_aos(struct lp_type type,
- const boolean cond[4])
+lp_build_const_mask_aos(struct gallivm_state *gallivm,
+ struct lp_type type,
+ unsigned mask)
{
- LLVMTypeRef elem_type = LLVMIntType(type.width);
+ LLVMTypeRef elem_type = LLVMIntTypeInContext(gallivm->context, type.width);
LLVMValueRef masks[LP_MAX_VECTOR_LENGTH];
unsigned i, j;
assert(type.length <= LP_MAX_VECTOR_LENGTH);
- for(j = 0; j < type.length; j += 4)
- for(i = 0; i < 4; ++i)
- masks[j + i] = LLVMConstInt(elem_type, cond[i] ? ~0 : 0, 0);
+ for (j = 0; j < type.length; j += 4) {
+ for( i = 0; i < 4; ++i) {
+ masks[j + i] = LLVMConstInt(elem_type,
+ mask & (1 << i) ? ~0ULL : 0,
+ 1);
+ }
+ }
return LLVMConstVector(masks, type.length);
}
+
+
+/**
+ * Performs lp_build_const_mask_aos, but first swizzles the mask
+ */
+LLVMValueRef
+lp_build_const_mask_aos_swizzled(struct gallivm_state *gallivm,
+ struct lp_type type,
+ unsigned mask,
+ const unsigned char *swizzle)
+{
+ mask =
+ ((mask & (1 << swizzle[0])) >> swizzle[0])
+ | (((mask & (1 << swizzle[1])) >> swizzle[1]) << 1)
+ | (((mask & (1 << swizzle[2])) >> swizzle[2]) << 2)
+ | (((mask & (1 << swizzle[3])) >> swizzle[3]) << 3);
+
+ return lp_build_const_mask_aos(gallivm, type, mask);
+}
+
+
+/**
+ * Build a zero-terminated constant string.
+ */
+LLVMValueRef
+lp_build_const_string(struct gallivm_state *gallivm,
+ const char *str)
+{
+ unsigned len = strlen(str) + 1;
+ LLVMTypeRef i8 = LLVMInt8TypeInContext(gallivm->context);
+ LLVMValueRef string = LLVMAddGlobal(gallivm->module, LLVMArrayType(i8, len), "");
+ LLVMSetGlobalConstant(string, TRUE);
+ LLVMSetLinkage(string, LLVMInternalLinkage);
+ LLVMSetInitializer(string, LLVMConstStringInContext(gallivm->context, str, len, TRUE));
+ string = LLVMConstBitCast(string, LLVMPointerType(i8, 0));
+ return string;
+}
+
+
+/**
+ * Build a callable function pointer.
+ *
+ * We use function pointer constants instead of LLVMAddGlobalMapping()
+ * to work around a bug in LLVM 2.6, and for efficiency/simplicity.
+ */
+LLVMValueRef
+lp_build_const_func_pointer(struct gallivm_state *gallivm,
+ const void *ptr,
+ LLVMTypeRef ret_type,
+ LLVMTypeRef *arg_types,
+ unsigned num_args,
+ const char *name)
+{
+ LLVMTypeRef function_type;
+ LLVMValueRef function;
+
+ function_type = LLVMFunctionType(ret_type, arg_types, num_args, 0);
+
+ function = lp_build_const_int_pointer(gallivm, ptr);
+
+ function = LLVMBuildBitCast(gallivm->builder, function,
+ LLVMPointerType(function_type, 0),
+ name);
+
+ return function;
+}
projects / mesa.git / blobdiff