[Bug rtl-optimization/87065] [7/8/9 Regression] combine causes ICE in trunc_int_for_mode

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87065

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Aug 27 08:41:22 2018
New Revision: 263872

URL: https://gcc.gnu.org/viewcvs?rev=263872&root=gcc&view=rev
Log:
        PR rtl-optimization/87065
        * combine.c (simplify_if_then_else): Formatting fix.
        (if_then_else_cond): Guard MULT optimization with SCALAR_INT_MODE_P
        check.
        (known_cond): Don't return const_true_rtx for vector modes.  Use
        CONST0_RTX instead of const0_rtx.  Formatting fixes.

        * gcc.target/i386/pr87065.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr87065.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog