raoanag 056f0a10b3
[HLSL][DXIL] Implement refract intrinsic (#147342)
- [x] Implement refract using HLSL source in hlsl_intrinsics.h
- [x] Implement the refract SPIR-V target built-in in
clang/include/clang/Basic/BuiltinsSPIRV.td
- [x] Add sema checks for refract to CheckSPIRVBuiltinFunctionCall in
clang/lib/Sema/SemaSPIRV.cpp
- [x] Add codegen for spv refract to EmitSPIRVBuiltinExpr in
CGBuiltin.cpp
- [x] Add codegen tests to clang/test/CodeGenHLSL/builtins/refract.hlsl
- [x] Add spv codegen test to clang/test/CodeGenSPIRV/Builtins/refract.c
- [x] Add sema tests to clang/test/SemaHLSL/BuiltIns/refract-errors.hlsl
- [x] Add spv sema tests to
clang/test/SemaSPIRV/BuiltIns/refract-errors.c
- [x] Create the int_spv_refract intrinsic in IntrinsicsSPIRV.td
- [x] In SPIRVInstructionSelector.cpp create the refract lowering and
map it to int_spv_refract in SPIRVInstructionSelector::selectIntrinsic.
- [x] Create SPIR-V backend test case in
llvm/test/CodeGen/SPIRV/hlsl-intrinsics/refract.ll
- [x] Check for what OpenCL support is needed.

Resolves https://github.com/llvm/llvm-project/issues/99153
2025-07-16 11:28:55 -07:00

13 lines
708 B
LLVM

; RUN: not llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown %s -o /dev/null 2>&1 | FileCheck %s
; RUN: not llc -verify-machineinstrs -O0 -mtriple=spirv32-unknown-unknown %s -o /dev/null 2>&1 | FileCheck %s
; CHECK: LLVM ERROR: %{{.*}} = G_INTRINSIC intrinsic(@llvm.spv.refract), %{{.*}}, %{{.*}}, %{{.*}} is only supported with the GLSL extended instruction set.
define noundef <4 x float> @refract_float4(<4 x float> noundef %I, <4 x float> noundef %N, float noundef %ETA) {
entry:
%spv.refract = call <4 x float> @llvm.spv.refract.f32(<4 x float> %I, <4 x float> %N, float %ETA)
ret <4 x float> %spv.refract
}
declare <4 x float> @llvm.spv.refract.f32(<4 x float>, <4 x float>, float)