[Bug tree-optimization/91914] [9 Regression] Invalid strlen optimization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91914

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Martin Sebor
<mse...@gcc.gnu.org>:

https://gcc.gnu.org/g:176e7fa198dd50aca4c882c74fc8f4386a3f9131

commit r9-9501-g176e7fa198dd50aca4c882c74fc8f4386a3f9131
Author: Martin Sebor <mse...@redhat.com>
Date:   Mon May 3 18:10:03 2021 -0600

    Minimal change to avoid incorrect strlen constant folding (PR 91914).

    gcc/ChangeLog:
            PR tree-optimization/91914
            * expr.c (string_constant): Pass argument type to
            fold_ctor_reference to guide it.

    gcc/testsuite/ChangeLog:
            PR tree-optimization/91914
            * gcc.dg/strlenopt-79.c: New test.