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[Bug tree-optimization/79621] [7 Regression] ICE in operator[], at vec.h:732


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79621

--- Comment #4 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Tue Feb 21 17:58:00 2017
New Revision: 245637

URL: https://gcc.gnu.org/viewcvs?rev=245637&root=gcc&view=rev
Log:
        PR tree-optimization/79621
        * gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior): Ignore
        blocks with edges to themselves.

        PR tree-optimization/79621
        * gcc.c-torture/compile/pr79621.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr79621.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-ssa-isolate-paths.c
    trunk/gcc/testsuite/ChangeLog

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