https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106343
Erick Ochoa <eochoa at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |eochoa at gcc dot gnu.org
--- Comment #5 from Erick Ochoa <eochoa at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #3)
> I should note that I noticed LLVM does not handle this either.
>
> Basically the following operators and values can be used:
> For integer:
> + 0
> - 0
> * 1
> / 1
> | 0
> & -1 (all ones)
> ^ 0
>
> For floating point (only with -ffast-math, I think sub can be used with 0
> and add with -0.0 without but I am not 100% sure):
> + 0
> - 0
> * 1
> / 1
I think it should be possible to also consider the bit-shifts operations:
>> 0
<< 0
