[Bug tree-optimization/61515] [4.9 Regression] Extremely long compile time for generated code

law at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Dec 10 19:40:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61515

--- Comment #33 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Thu Dec 10 19:40:23 2015
New Revision: 231542

URL: https://gcc.gnu.org/viewcvs?rev=231542&root=gcc&view=rev
Log:
       PR tree-optimization/61515
        PR tree-optimization/46590
        Backport from mainline.
        * tree-ssa-threadedge.c (invalidate_equivalences): Walk the unwinding
        stack rather than looking at every SSA_NAME's value.



Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/tree-ssa-threadedge.c


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