[Bug tree-optimization/61515] [4.9/5 Regression] Extremely long compile time for generated code

[law at gcc dot gnu.org]

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

--- Comment #28 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Fri Nov  7 22:55:00 2014
New Revision: 217239

URL: https://gcc.gnu.org/viewcvs?rev=217239&root=gcc&view=rev
Log:
    PR tree-optimization/61515
    * tree-ssa-threadedge.c (invalidate_equivalences): Walk the unwinding stack
    rather than looking at ever SSA_NAME's value.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-threadedge.c