[Bug tree-optimization/41377] [4.5 Regression] gimple EH rewrite causes ICE with PPRE (enabled at -O3)

[rth at gcc dot gnu dot org]

------- Comment #6 from rth at gcc dot gnu dot org  2009-10-13 18:42 -------
Subject: Bug 41377

Author: rth
Date: Tue Oct 13 18:41:56 2009
New Revision: 152728

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152728
Log:
        PR tree-optimization/41377
        * tree-eh.c (unsplit_eh): Propagate degenerate PHIs.
        (cleanup_empty_eh_merge_phis): New change_region parameter;
        pass it on to redirect_eh_edge_1.  Update callers.
        (cleanup_empty_eh_unsplit): Don't require an existing EH label
        at the destination block.

Added:
    trunk/gcc/testsuite/g++.dg/opt/eh5.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-eh.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41377