ed60cd2563
Closes https://github.com/llvm/llvm-project/issues/99097 Closes https://github.com/llvm/llvm-project/issues/99100 As ddx and ddy are near identical implementations I've combined them in this PR. This aims to unblock https://github.com/llvm/llvm-project/pull/161378 --------- Co-authored-by: Alexander Johnston <alexander.johnston@amd.com>
41 lines
1.8 KiB
LLVM
41 lines
1.8 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_coarse are generated for half/float and matching vectors
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define noundef half @deriv_coarse_y_half(half noundef %a) {
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; CHECK: call half @dx.op.unary.f16(i32 84, half %{{.*}})
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entry:
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%dx.ddy.coarse = call half @llvm.dx.ddy.coarse.f16(half %a)
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ret half %dx.ddy.coarse
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}
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define noundef float @deriv_coarse_y_float(float noundef %a) {
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; CHECK: call float @dx.op.unary.f32(i32 84, float %{{.*}})
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entry:
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%dx.ddy.coarse = call float @llvm.dx.ddy.coarse.f32(float %a)
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ret float %dx.ddy.coarse
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}
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define noundef <4 x float> @deriv_coarse_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 84, 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 84, 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 84, 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 84, 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.coarse = call <4 x float> @llvm.dx.ddy.coarse.v4f32(<4 x float> %a)
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ret <4 x float> %dx.ddy.coarse
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}
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declare half @llvm.dx.ddy.coarse.f16(half)
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declare float @llvm.dx.ddy.coarse.f32(float)
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declare <4 x float> @llvm.dx.ddy.coarse.v4f32(<4 x float>)
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