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27 lines
944 B
LLVM
27 lines
944 B
LLVM
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; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
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declare float @llvm.sqrt.f32(float) nounwind readnone
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declare double @llvm.sqrt.f64(double) nounwind readnone
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; SI-LABEL: @rsq_f32
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; SI: V_RSQ_F32_e32
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; SI: S_ENDPGM
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define void @rsq_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
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%val = load float addrspace(1)* %in, align 4
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%sqrt = call float @llvm.sqrt.f32(float %val) nounwind readnone
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%div = fdiv float 1.0, %sqrt
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store float %div, float addrspace(1)* %out, align 4
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ret void
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}
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; SI-LABEL: @rsq_f64
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; SI: V_RSQ_F64_e32
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; SI: S_ENDPGM
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define void @rsq_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) nounwind {
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%val = load double addrspace(1)* %in, align 4
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%sqrt = call double @llvm.sqrt.f64(double %val) nounwind readnone
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%div = fdiv double 1.0, %sqrt
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store double %div, double addrspace(1)* %out, align 4
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ret void
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}
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