[Bug middle-end/95922] Failure to optimize `((b ^ a) & c) ^ a` to `(a & ~c) | (b & c)` the right way on architectures with andnot
jakub at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Nov 20 11:06:19 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95922
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
What would be the advantage of doing that?
Same number of instructions, but with andn 3 bytes longer...
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