[Bug tree-optimization/51759] [4.5 Regression] miscompile writes past end of bitfield

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51759

--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> 2012-01-09 18:40:16 UTC ---
Author: jamborm
Date: Mon Jan  9 18:40:09 2012
New Revision: 183023

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183023
Log:
2012-01-09  Martin Jambor  <mjambor@suse.cz>

    PR tree-optimization/51759

    Backport from mainline
    2010-09-15  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/45644
        * tree-sra.c (create_access): Check for bit-fields directly.

        * testsuite/gcc.dg/ipa/pr45644.c: New test.
    * testsuite/g++.dg/ipa/pr51759.C: Likewise.


Added:
    branches/gcc-4_5-branch/gcc/testsuite/g++.dg/ipa/pr51759.C
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/ipa/pr45644.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_5-branch/gcc/tree-sra.c