[Bug tree-optimization/111499] [12/1/14/15 Regression] -Wstringop-overread warning in std::vector less operator< for __builtin_memcmp call

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111499

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2025-04-01
      Known to work|                            |11.5.0
     Ever confirmed|0                           |1
            Summary|-Wstringop-overread warning |[12/1/14/15 Regression]
                   |in std::vector<uint8_t>     |-Wstringop-overread warning
                   |less operator< for          |in std::vector<uint8_t>
                   |__builtin_memcmp call       |less operator< for
                   |                            |__builtin_memcmp call
      Known to fail|                            |12.1.0, 12.4.0, 13.3.0,
                   |                            |14.2.0, 15.0

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The warning started with r12-2793-g81d6cdd335ffc6

    Move more code to new gimple-ssa-warn-access pass.

Still present on trunk.