[Bug tree-optimization/83081] [8 regression][arm] gcc.dg/pr80218.c fails since r254888

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83081

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Jan 22 22:59:33 2018
New Revision: 256966

URL: https://gcc.gnu.org/viewcvs?rev=256966&root=gcc&view=rev
Log:
        PR tree-optimization/83081
        * profile-count.h (profile_probability::split): New method.
        * dojump.c (do_jump_1) <case TRUTH_ANDIF_EXPR, case TRUTH_ORIF_EXPR>:
        Use profile_probability::split.
        (do_compare_rtx_and_jump): Fix adjustment of probabilities
        when splitting a single conditional jump into 2.

        * gcc.dg/predict-8.c: Adjust expected probability.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dojump.c
    trunk/gcc/profile-count.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/predict-8.c