5cf1e2e2ec
Completes #86192 `DXIL.td` - add log2 to dxilop lowering `DXILIntrinsicExpansion.cpp` - add log and log10 to log2 expansions
21 lines
592 B
LLVM
21 lines
592 B
LLVM
; RUN: opt -S -dxil-op-lower < %s | FileCheck %s
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; Make sure dxil operation function calls for log2 are generated for float and half.
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define noundef float @log2_float(float noundef %a) #0 {
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entry:
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; CHECK:call float @dx.op.unary.f32(i32 23, float %{{.*}})
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%elt.log2 = call float @llvm.log2.f32(float %a)
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ret float %elt.log2
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}
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define noundef half @log2_half(half noundef %a) #0 {
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entry:
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; CHECK:call half @dx.op.unary.f16(i32 23, half %{{.*}})
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%elt.log2 = call half @llvm.log2.f16(half %a)
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ret half %elt.log2
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}
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declare half @llvm.log2.f16(half)
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declare float @llvm.log2.f32(float)
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