[Bug c/91812] GCC ignores volatile modifier

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91812

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Sep 19 12:49:45 2019
New Revision: 275960

URL: https://gcc.gnu.org/viewcvs?rev=275960&root=gcc&view=rev
Log:
2019-09-19  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/91812
        * tree-ssa-phiprop.c (propagate_with_phi): Do not replace
        volatile loads.

        * gcc.dg/torture/pr91812.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr91812.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-phiprop.c