4ca2caeab6
Implements the HLSL ddx_fine and ddy_fine intrinsics. For the SPIRV backend the intrinsics are ensured to be unavailable in opencl (as they require fragment execution stage). Closes https://github.com/llvm/llvm-project/issues/99098 Closes https://github.com/llvm/llvm-project/issues/99101
41 lines
1.7 KiB
LLVM
41 lines
1.7 KiB
LLVM
; RUN: opt -S -scalarizer -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s
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; Make sure dxil operation function calls for ddy_fine are generated for half/float and matching vectors
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define noundef half @deriv_fine_y_half(half noundef %a) {
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; CHECK: call half @dx.op.unary.f16(i32 86, half %{{.*}})
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entry:
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%dx.ddy.fine = call half @llvm.dx.ddy.fine.f16(half %a)
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ret half %dx.ddy.fine
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}
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define noundef float @deriv_fine_y_float(float noundef %a) {
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; CHECK: call float @dx.op.unary.f32(i32 86, float %{{.*}})
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entry:
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%dx.ddy.fine = call float @llvm.dx.ddy.fine.f32(float %a)
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ret float %dx.ddy.fine
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}
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define noundef <4 x float> @deriv_fine_y_float4(<4 x float> noundef %a) {
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; CHECK: [[ee0:%.*]] = extractelement <4 x float> %a, i64 0
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; CHECK: [[ie0:%.*]] = call float @dx.op.unary.f32(i32 86, float [[ee0]])
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; CHECK: [[ee1:%.*]] = extractelement <4 x float> %a, i64 1
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; CHECK: [[ie1:%.*]] = call float @dx.op.unary.f32(i32 86, float [[ee1]])
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; CHECK: [[ee2:%.*]] = extractelement <4 x float> %a, i64 2
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; CHECK: [[ie2:%.*]] = call float @dx.op.unary.f32(i32 86, float [[ee2]])
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; CHECK: [[ee3:%.*]] = extractelement <4 x float> %a, i64 3
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; CHECK: [[ie3:%.*]] = call float @dx.op.unary.f32(i32 86, float [[ee3]])
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; CHECK: insertelement <4 x float> poison, float [[ie0]], i64 0
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; CHECK: insertelement <4 x float> %{{.*}}, float [[ie1]], i64 1
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; CHECK: insertelement <4 x float> %{{.*}}, float [[ie2]], i64 2
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; CHECK: insertelement <4 x float> %{{.*}}, float [[ie3]], i64 3
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; CHECK: ret <4 x float> %{{.*}}
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entry:
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%dx.ddy.fine = call <4 x float> @llvm.dx.ddy.fine.v4f32(<4 x float> %a)
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ret <4 x float> %dx.ddy.fine
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}
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declare half @llvm.dx.ddy.fine.f16(half)
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declare float @llvm.dx.ddy.fine.f32(float)
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declare <4 x float> @llvm.dx.ddy.fine.v4f32(<4 x float>)
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