[Bug tree-optimization/50672] [4.7/4.8 Regression] ice: verify_ssa failed: no immediate_use list

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50672

--- Comment #19 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-08-02 
09:43:19 UTC ---
Author: rguenth
Date: Thu Aug  2 09:43:14 2012
New Revision: 190070

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190070
Log:
2012-08-02  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/50672
    Revert
    2012-08-01  Richard Guenther  <rguent...@suse.de>

    * tree-ssa-tail-merge.c (release_last_vdef): Remove.
    (replace_block_by): Adjust.

    * g++.dg/torture/pr50672.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr50672.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-tail-merge.c