[Bug rtl-optimization/53160] [4.7/4.8 Regression] likely wrong code bug

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53160

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-05-02 
07:13:54 UTC ---
Author: jakub
Date: Wed May  2 07:13:49 2012
New Revision: 187035

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187035
Log:
    PR rtl-optimization/53160
    * ree.c (combine_reaching_defs): Handle the case where cand->insn
    has been modified by ree pass already.

    * gcc.c-torture/execute/pr53160.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr53160.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ree.c
    trunk/gcc/testsuite/ChangeLog