[Bug tree-optimization/52028] [4.7 Regression] wrong code with -O2 -ftree-loop-distribution

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52028

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-30 
15:51:34 UTC ---
Author: rguenth
Date: Mon Jan 30 15:51:23 2012
New Revision: 183730

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183730
Log:
2012-01-30  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/52028
    * tree-loop-distribution.c (ldist_gen): Properly update
    virtual SSA form.

    * gcc.dg/torture/pr52028.c: New testcase.
    * gfortran.dg/ldist-pr45199.f: Adjust.
    * gcc.dg/tree-ssa/ldist-16.c: Likewise.
    * gcc.dg/tree-ssa/ldist-17.c: Likewise.
    * gcc.dg/tree-ssa/ldist-pr45948.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr52028.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-16.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-17.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c
    trunk/gcc/testsuite/gfortran.dg/ldist-pr45199.f
    trunk/gcc/tree-loop-distribution.c