[Bug target/105930] [12/13 Regression] Excessive stack spill generation on 32-bit x86
jakub at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon Jun 13 09:29:07 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105930
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org,
| |uros at gcc dot gnu.org
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Confirmed it is r12-7502-g8ea4a34bd0b0a462 on our bisect seed.
Perhaps for !TARGET_STV || !TARGET_SSE2 we could keep the optabs, but split
right away during expansion?
Anyway, I think we need to understand what makes it spill that much more, and
unfortunately the testcase is too large to find that out easily, I think we
should investigate commenting out some rounds.
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