forked from OSchip/llvm-project
26 lines
713 B
LLVM
26 lines
713 B
LLVM
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; RUN: llc -mtriple=amdgcn-amd-amdhsa < %s | FileCheck -check-prefix=GCN %s
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; GCN-LABEL: {{^}}select_undef_lhs:
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; GCN: s_waitcnt
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; GCN-NOT: v_cmp
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; GCN-NOT: v_cndmask
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; GCN-NEXT: s_setpc_b64
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define float @select_undef_lhs(float %val, i1 %cond) {
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%undef = call float @llvm.amdgcn.rcp.f32(float undef)
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%sel = select i1 %cond, float %undef, float %val
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ret float %sel
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}
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; GCN-LABEL: {{^}}select_undef_rhs:
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; GCN: s_waitcnt
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; GCN-NOT: v_cmp
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; GCN-NOT: v_cndmask
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; GCN-NEXT: s_setpc_b64
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define float @select_undef_rhs(float %val, i1 %cond) {
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%undef = call float @llvm.amdgcn.rcp.f32(float undef)
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%sel = select i1 %cond, float %val, float %undef
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ret float %sel
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}
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declare float @llvm.amdgcn.rcp.f32(float)
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