[Bug tree-optimization/86925] [9 Regression] ICE in get_predictor_value, at predict.c:2551

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86925

--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Wed Aug 15 08:55:15 2018
New Revision: 263552

URL: https://gcc.gnu.org/viewcvs?rev=263552&root=gcc&view=rev
Log:
Fix merging of 2 predictors (PR tree-optimization/86925).

2018-08-15  Martin Liska  <mli...@suse.cz>

        PR tree-optimization/86925
        * predict.c (expr_expected_value_1): When taking
        later predictor, assign also probability.
        Use fold_build2_initializer_loc in order to fold
        the expression in -frounding-math.
2018-08-15  Martin Liska  <mli...@suse.cz>

        PR tree-optimization/86925
        * gcc.dg/predict-20.c: New test.
        * gcc.dg/predict-21.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/predict-20.c
    trunk/gcc/testsuite/gcc.dg/predict-21.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/predict.c
    trunk/gcc/testsuite/ChangeLog