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radeonsi: support 64-bit system values

Browse source 
For simplicitly, always store system values as 32-bit values or arrays
of 32-bit values. 64-bit values are unpacked and packed accordingly.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2017-03-31 13:02:34 +02:00
parent 1ee57b16be
commit 4cf2942777
1 changed files with 21 additions and 5 deletions
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26
src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
View file

@ -762,13 +762,29 @@ static LLVMValueRef fetch_system_value(struct lp_build_tgsi_context *bld_base,
unsigned swizzle)
{
struct si_shader_context *ctx = si_shader_context(bld_base);
struct gallivm_state *gallivm = &ctx->gallivm;
LLVMBuilderRef builder = ctx->gallivm.builder;
LLVMValueRef cval = ctx->system_values[reg->Register.Index];
if (LLVMGetTypeKind(LLVMTypeOf(cval)) == LLVMVectorTypeKind) {
cval = LLVMBuildExtractElement(gallivm->builder, cval,
LLVMConstInt(ctx->i32, swizzle, 0), "");
if (tgsi_type_is_64bit(type)) {
LLVMValueRef lo, hi;
assert(swizzle == 0 || swizzle == 2);
lo = LLVMBuildExtractElement(
builder, cval, LLVMConstInt(ctx->i32, swizzle, 0), "");
hi = LLVMBuildExtractElement(
builder, cval, LLVMConstInt(ctx->i32, swizzle + 1, 0), "");
return si_llvm_emit_fetch_64bit(bld_base, type, lo, hi);
}
if (LLVMGetTypeKind(LLVMTypeOf(cval)) == LLVMVectorTypeKind) {
cval = LLVMBuildExtractElement(
builder, cval, LLVMConstInt(ctx->i32, swizzle, 0), "");
} else {
assert(swizzle == 0);
}
return bitcast(bld_base, type, cval);
}