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- ; RUN: opt -instcombine -S -disable-simplify-libcalls < %s | FileCheck %s
- ; rdar://10466410
- ; Instcombine tries to fold (fptrunc (sqrt (fpext x))) -> (sqrtf x), but this
- ; shouldn't fold when sqrtf isn't available.
- define float @foo(float %f) uwtable ssp {
- entry:
- ; CHECK: %conv = fpext float %f to double
- ; CHECK: %call = tail call double @sqrt(double %conv)
- ; CHECK: %conv1 = fptrunc double %call to float
- %conv = fpext float %f to double
- %call = tail call double @sqrt(double %conv)
- %conv1 = fptrunc double %call to float
- ret float %conv1
- }
- declare double @sqrt(double)
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