[Bug tree-optimization/77445] [7 Regression] Performance drop after r239219 on coremark test

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77445

--- Comment #13 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Tue Jan 17 12:49:41 2017
New Revision: 244528

URL: https://gcc.gnu.org/viewcvs?rev=244528&root=gcc&view=rev
Log:

        PR middle-end/77445
        * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges):
        correctly set frequency of oudgoing edge.
        (duplicate_thread_path): Fix profile updating.
        * gcc.dg/tree-ssa/pr77445-2.c: New testcase.
        * gcc.dg/tree-ssa/pr77445.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr77445-2.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr77445.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-threadupdate.c