[Bug tree-optimization/106322] [12 Regression] tree-vectorize: Wrong code at O2 level (-fno-tree-vectorize is working) since r12-2404-ga1d27560770818c5
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Aug 24 06:51:34 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106322
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Known to work| |12.2.1
Status|ASSIGNED |RESOLVED
Known to fail| |12.2.0
--- Comment #50 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Kewen Lin from comment #49)
> Hi Richi,
>
> One thing I'm not sure about is that if we want to backport this to gcc-11
> and gcc-10? Although the failure got exposed by .MULH pattern recog which is
> only in gcc-12, IMHO the underlying issue exists in gcc-10 and gcc-11.
It's enough to backport to 12.
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