#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"
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:
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);
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 {
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, round(r*dscale), 0);
- elems[swizzle[1]] = LLVMConstInt(elem_type, round(g*dscale), 0);
- elems[swizzle[2]] = LLVMConstInt(elem_type, round(b*dscale), 0);
- elems[swizzle[3]] = LLVMConstInt(elem_type, round(a*dscale), 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];
/**
* Build a callable function pointer.
*
- * We this casts instead of LLVMAddGlobalMapping()
+ * We use function pointer constants instead of LLVMAddGlobalMapping()
* to work around a bug in LLVM 2.6, and for efficiency/simplicity.
*/
LLVMValueRef