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34 lines
1.2 KiB
LLVM
34 lines
1.2 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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declare double @llvm.AMDGPU.rcp.f64(double) nounwind readnone
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declare double @llvm.sqrt.f64(double) nounwind readnone
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; FUNC-LABEL: {{^}}rcp_f64:
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; SI: v_rcp_f64_e32
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define void @rcp_f64(double addrspace(1)* %out, double %src) nounwind {
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%rcp = call double @llvm.AMDGPU.rcp.f64(double %src) nounwind readnone
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store double %rcp, double addrspace(1)* %out, align 8
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ret void
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}
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; FUNC-LABEL: {{^}}rcp_pat_f64:
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; SI: v_rcp_f64_e32
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define void @rcp_pat_f64(double addrspace(1)* %out, double %src) nounwind {
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%rcp = fdiv double 1.0, %src
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store double %rcp, double addrspace(1)* %out, align 8
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ret void
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}
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; FUNC-LABEL: {{^}}rsq_rcp_pat_f64:
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; SI-UNSAFE: v_rsq_f64_e32
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; SI-SAFE-NOT: v_rsq_f64_e32
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; SI-SAFE: v_sqrt_f64
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; SI-SAFE: v_rcp_f64
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define void @rsq_rcp_pat_f64(double addrspace(1)* %out, double %src) nounwind {
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%sqrt = call double @llvm.sqrt.f64(double %src) nounwind readnone
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%rcp = call double @llvm.AMDGPU.rcp.f64(double %sqrt) nounwind readnone
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store double %rcp, double addrspace(1)* %out, align 8
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ret void
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}
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