[Bug target/84710] [8 Regression] ICE: RTL check: expected code 'reg', have 'subreg' in rhs_regno, at rtl.h:1896 with -O -fno-forward-propagate

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84710

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Mar  6 20:41:37 2018
New Revision: 258301

URL: https://gcc.gnu.org/viewcvs?rev=258301&root=gcc&view=rev
Log:
        PR target/84710
        * combine.c (try_combine): Use reg_or_subregno instead of handling
        just paradoxical SUBREGs and REGs.

        * gcc.dg/pr84710.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr84710.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog