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[Bug tree-optimization/41643] [4.4 Regression] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce



------- Comment #4 from jakub at gcc dot gnu dot org  2009-11-07 17:40 -------
Subject: Bug 41643

Author: jakub
Date: Sat Nov  7 17:39:48 2009
New Revision: 153996

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153996
Log:
        PR tree-optimization/41643
        Backport from mainline
        2009-04-03  Richard Guenther  <rguenther@suse.de>

        * tree-tailcall.c (tree_optimize_tail_calls_1): Also split the
        edge from the entry block if we have degenerate PHI nodes in
        the first basic block.

        * gcc.dg/pr41643.c: New test.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr41643.c
Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_4-branch/gcc/tree-tailcall.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643


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