[Bug tree-optimization/97260] [9/10/11 regression] memcmp of constant string and local constant array not folded
msebor at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Sep 30 23:32:18 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97260
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.8.5
Known to fail| |10.2.0, 11.0, 9.3.0
Blocks| |83819
Summary|memcmp of constant string |[9/10/11 regression] memcmp
|and local constant array |of constant string and
|not folded |local constant array not
| |folded
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
It appears that GCC was able to fold such calls until version 4.8. Starting
with 4.9 it can't anymore.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83819
[Bug 83819] [meta-bug] missing strlen optimizations
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