[Bug tree-optimization/53663] [4.7 Regression] inconsistent inline handling of bool within union

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53663

--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-03 16:53:39 UTC ---
Author: rguenth
Date: Mon Dec  3 16:53:25 2012
New Revision: 194101

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194101
Log:
2012-12-03  Richard Biener  <rguenther@suse.de>

    Backport from mainline
    2012-09-24  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/53663
    * tree-ssa-sccvn.c (vn_reference_lookup_3): Conditional
    native encode/interpret translation on VN_WALKREWRITE.

    * gcc.dg/torture/pr53663-1.c: New testcase.
    * gcc.dg/torture/pr53663-2.c: Likewise.
    * gcc.dg/torture/pr53663-3.c: Likewise.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr53663-1.c
    branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr53663-2.c
    branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr53663-3.c
Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_7-branch/gcc/tree-ssa-sccvn.c