[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 #24 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Thu Feb  2 20:22:13 2017
New Revision: 245135

URL: https://gcc.gnu.org/viewcvs?rev=245135&root=gcc&view=rev
Log:

        PR middle-end/77445
        * gcc.dg/tree-ssa/pr77445-2.c: Update testcase to check that all
        threading is done.
        * tree-ssa-threadbackward.c (profitable_jump_thread_path): Dump
        statistics of the analyzed path; allow threading for speed when
        any of BBs along the path are optimized for speed.

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