[Bug tree-optimization/51246] [4.7 Regression] ICE in replace_ref_with, at tree-predcom.c:1309

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51246

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-12-01 
17:03:40 UTC ---
Author: jakub
Date: Thu Dec  1 17:03:33 2011
New Revision: 181884

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181884
Log:
    PR tree-optimization/51246
    * tree-predcom.c (replace_ref_with): Handle also clobber on the
    rhs.

    * gcc.c-torture/compile/pr51246.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr51246.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-predcom.c