search for: fcvt_lu

...with just the cast on its own: https://godbolt.org/g/myUoL2 <https://godbolt.org/g/myUoL2> >> >> It appears to be in the LLVM lowering of the fptoui intrinsic so it must MC layer optimisations. >> >> ; Function Attrs: noinline nounwind uwtable >> define i64 @_Z7fcvt_luf(float %f) #0 { >> %1 = alloca float, align 4 >> store float %f, float* %1, align 4 >> %2 = load float, float* %1, align 4 >> %3 = fptoui float %2 to i64 >> ret i64 %3 >> } >> >> GCC performs a comparison with ucomiss and branches whereas C...

...ot seeing the full range of LLVM's behaviour. Yes. I’m sure. It reproduces with just the cast on its own: https://godbolt.org/g/myUoL2 It appears to be in the LLVM lowering of the fptoui intrinsic so it must MC layer optimisations. ; Function Attrs: noinline nounwind uwtable define i64 @_Z7fcvt_luf(float %f) #0 { %1 = alloca float, align 4 store float %f, float* %1, align 4 %2 = load float, float* %1, align 4 %3 = fptoui float %2 to i64 ret i64 %3 } GCC performs a comparison with ucomiss and branches whereas Clang computes both forms and predicates the result using a conditional m...

...ot seeing the full range of LLVM's behaviour. Yes. I’m sure. It reproduces with just the cast on its own: https://godbolt.org/g/myUoL2 It appears to be in the LLVM lowering of the fptoui intrinsic so it must MC layer optimisations. ; Function Attrs: noinline nounwind uwtable define i64 @_Z7fcvt_luf(float %f) #0 { %1 = alloca float, align 4 store float %f, float* %1, align 4 %2 = load float, float* %1, align 4 %3 = fptoui float %2 to i64 ret i64 %3 } GCC performs a comparison with ucomiss and branches whereas Clang computes both forms and predicates the result using a conditional m...