[Bug middle-end/45852] volatile structs are broken!

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45852

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-16 
20:23:04 UTC ---
Author: jakub
Date: Sun Jan 16 20:23:01 2011
New Revision: 168867

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168867
Log:
    Backport from mainline
    2010-12-21  Jakub Jelinek  <ja...@redhat.com>

    PR middle-end/45852
    * expr.c (store_expr): Ignore alt_rtl if equal to target,
    but has side-effects.

    * gcc.target/i386/pr45852.c: New test.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.target/i386/pr45852.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/expr.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog