[Bug tree-optimization/92645] Hand written vector code is 450 times slower when compiled with GCC compared to Clang

jakub at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Mar 5 10:04:00 GMT 2020


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92645

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Perhaps that is something store-merging should handle too and related to the
issue Xionghu Luo showed in the "Run store-merging pass once more before pass
fre/pre" thread on gcc-patches.  Ideally store-merging should handle both, and
SLP too.


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