[Bug middle-end/48814] [4.5/4.6/4.7/4.8 Regression] Incorrect scalar increment result

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48814

--- Comment #12 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-03-16 
11:48:54 UTC ---
Author: rguenth
Date: Fri Mar 16 11:48:48 2012
New Revision: 185465

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185465
Log:
2012-03-16  Richard Guenther  <rguent...@suse.de>
    Kai Tietz  <kti...@redhat.com>

    PR middle-end/48814
    * gimplify.c (gimplify_self_mod_expr): Evaluate postfix
    side-effects completely in the pre-queue and use a temporary
    for the result.

    * gcc.c-torture/execute/pr48814-1.c: New test.
    * gcc.c-torture/execute/pr48814-2.c: New test.
    * gcc.dg/tree-ssa/assign-1.c: New test.
    * gcc.dg/tree-ssa/assign-2.c: New test.
    * gcc.dg/tree-ssa/assign-3.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr48814-1.c
    trunk/gcc/testsuite/gcc.c-torture/execute/pr48814-2.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/assign-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/assign-2.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/assign-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/testsuite/ChangeLog