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ac/nir: handle abs modifier

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This commit is contained in:
Marek Olšák 2019-07-24 17:44:51 -04:00
parent efe2d8c5f9
commit d3c80733cd
1 changed files with 30 additions and 11 deletions
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41
src/amd/common/ac_nir_to_llvm.c
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@ -153,6 +153,12 @@ static LLVMBasicBlockRef get_block(struct ac_nir_context *nir,
return (LLVMBasicBlockRef)entry->data;
}
static LLVMValueRef emit_iabs(struct ac_llvm_context *ctx,
LLVMValueRef src0)
{
return ac_build_imax(ctx, src0, LLVMBuildNeg(ctx->builder, src0, ""));
}
static LLVMValueRef get_alu_src(struct ac_nir_context *ctx,
nir_alu_src src,
unsigned num_components)
@ -188,18 +194,37 @@ static LLVMValueRef get_alu_src(struct ac_nir_context *ctx,
}
}
if (src.negate) {
LLVMTypeRef type = LLVMTypeOf(value);
if (LLVMGetTypeKind(type) == LLVMVectorTypeKind)
type = LLVMGetElementType(type);
LLVMTypeRef type = LLVMTypeOf(value);
if (LLVMGetTypeKind(type) == LLVMVectorTypeKind)
type = LLVMGetElementType(type);
if (src.abs) {
if (LLVMGetTypeKind(type) == LLVMIntegerTypeKind) {
value = emit_iabs(&ctx->ac, value);
} else {
char name[128];
unsigned fsize = type == ctx->ac.f16 ? 16 :
type == ctx->ac.f32 ? 32 : 64;
if (LLVMGetTypeKind(LLVMTypeOf(value)) == LLVMVectorTypeKind) {
snprintf(name, sizeof(name), "llvm.fabs.v%uf%u",
LLVMGetVectorSize(LLVMTypeOf(value)), fsize);
} else {
snprintf(name, sizeof(name), "llvm.fabs.f%u", fsize);
}
value = ac_build_intrinsic(&ctx->ac, name, LLVMTypeOf(value),
&value, 1, AC_FUNC_ATTR_READNONE);
}
}
if (src.negate) {
if (LLVMGetTypeKind(type) == LLVMIntegerTypeKind)
value = LLVMBuildNeg(ctx->ac.builder, value, "");
else
value = LLVMBuildFNeg(ctx->ac.builder, value, "");
}
assert(!src.abs);
return value;
}
@ -289,12 +314,6 @@ static LLVMValueRef emit_bcsel(struct ac_llvm_context *ctx,
ac_to_integer_or_pointer(ctx, src2), "");
}
static LLVMValueRef emit_iabs(struct ac_llvm_context *ctx,
LLVMValueRef src0)
{
return ac_build_imax(ctx, src0, LLVMBuildNeg(ctx->builder, src0, ""));
}
static LLVMValueRef emit_uint_carry(struct ac_llvm_context *ctx,
const char *intrin,
LLVMValueRef src0, LLVMValueRef src1)