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minmax
2015 Nov 15
3
Why is llvm.maxnum.f32 coming through unreduced?
I have a smallish compilation that contains calls on intrinsics
@llvm.maxnum.f32 and @llvm.fabs.f32:
%fminmax = call float @llvm.maxnum.f32(float %fabs5, float %fabs)
%fabs = call float @llvm.fabs.f32(float %v.6)
The latter is reduced to machine code by llc, the former is not, instead
coming through as an external function call, which then fails to link.
I can't see any differences that look sign...