derek.holloway
7502bf64a4
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30 lines
1.2 KiB
LLVM
30 lines
1.2 KiB
LLVM
; RUN: opt -S -dxil-intrinsic-expansion -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s --check-prefixes=CHECK,EXPCHECK
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; RUN: opt -S -dxil-intrinsic-expansion -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s --check-prefixes=CHECK,DOPCHECK
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; Make sure dxil operation function calls for log are generated.
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define noundef float @log_float(float noundef %a) #0 {
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entry:
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; DOPCHECK: call float @dx.op.unary.f32(i32 23, float %{{.*}})
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; EXPCHECK: call float @llvm.log2.f32(float %a)
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; CHECK: fmul float f0x3F317218, %{{.*}}
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%elt.log = call float @llvm.log.f32(float %a)
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ret float %elt.log
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}
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define noundef half @log_half(half noundef %a) #0 {
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entry:
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; DOPCHECK: call half @dx.op.unary.f16(i32 23, half %{{.*}})
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; EXPCHECK: call half @llvm.log2.f16(half %a)
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; CHECK: fmul half 6.933590e-01, %{{.*}}
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%elt.log = call half @llvm.log.f16(half %a)
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ret half %elt.log
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}
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; DOPCHECK-DAG: declare half @dx.op.unary.f16(i32, half) #[[#ATTR0:]]
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; DOPCHECK-DAG: declare float @dx.op.unary.f32(i32, float) #[[#ATTR0]]
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; DOPCHECK: attributes #[[#ATTR0]] = { nounwind memory(none) }
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declare half @llvm.log.f16(half)
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declare float @llvm.log.f32(float)
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