http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54902



--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> 2012-10-25 
11:16:19 UTC ---

Author: rguenth

Date: Thu Oct 25 11:16:12 2012

New Revision: 192804



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192804

Log:

2012-10-25  Richard Biener  <rguent...@suse.de>



    PR tree-optimization/54902

    * tree-ssa-pre.c (fini_eliminate): Return TODO.

    (do_pre): Adjust.

    (execute_fre): Likewise.

    * tree-ssa-tailmerge.c (tail_merge_optimize): Delete unreachable

    blocks before computing dominators.



    * g++.dg/torture/pr54902.C: New testcase.



Added:

    trunk/gcc/testsuite/g++.dg/torture/pr54902.C

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/testsuite/ChangeLog

    trunk/gcc/tree-ssa-pre.c

    trunk/gcc/tree-ssa-tail-merge.c

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