[Bug middle-end/110142] [14 Regression] x264 from SPECCPU 2017 miscompares from g:2f482a07365d9f4a94a56edd13b7f01b8f78b5a0

avieira at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Jun 7 08:22:23 GMT 2023


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110142

--- Comment #1 from avieira at gcc dot gnu.org ---
Found the issue to be with passing a subtype to vect_recog_widen_op_pattern in
vect_recog_widen_{plus,minus}_pattern where we didn't before. Removing those
and letting it default to a NULL pointer seems to fix the codegen issue.  Will
test patches locally and send in patch when done.


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