[Bug target/84700] [6/7/8 Regression] ICE on 32-bit BE powerpc targets w/ -misel -O1

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84700

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Mar  5 22:13:58 2018
New Revision: 258263

URL: https://gcc.gnu.org/viewcvs?rev=258263&root=gcc&view=rev
Log:
        PR target/84700
        * combine.c (combine_simplify_rtx): Don't try to simplify if
        if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
        are equal to x.

        * gcc.target/powerpc/pr84700.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr84700.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog