[Bug middle-end/105777] Failure to optimize __builtin_mul_overflow with constant operand to add+cmp check

jakub at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Tue May 31 13:36:59 GMT 2022


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105777

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> ---
Right now, x86, riscv and s390 are the only targets with mulv<mode>4 and the
former 2 with umulv<mode>4 support, so perhaps it might be enough to just
compare  how those sequences compare on those 2/3 arches.


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