[Bug middle-end/123524] [16 Regression] 6% performance regression in gcc-16 compared to gcc-15 when compiling an interpreter

liuhongt at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon Jan 12 09:05:57 GMT 2026


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123524

Hongtao Liu <liuhongt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |liuhongt at gcc dot gnu.org

--- Comment #4 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
Maybe related to r16-1644-gaba3b9d3a48a07, it tries to do some CSE for vector
broadcast from constant, the optimization is before RA.


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