[Bug target/68088] [6 Regression] ICE: RTL check: expected code 'reg', have 'subreg' in rhs_regno, at rtl.h:1782 @ aarch64

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68088

--- Comment #4 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Fri Nov  6 12:04:15 2015
New Revision: 229845

URL: https://gcc.gnu.org/viewcvs?rev=229845&root=gcc&view=rev
Log:
[ARM/AArch64] PR 68088: Fix RTL checking ICE due to subregs inside accumulator
forwarding check

        PR target/68088
        * config/arm/aarch-common.c (aarch_accumulator_forwarding): Strip
        subregs from accumulator and make sure it's a register.

        * gcc.dg/pr68088_1.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/pr68088_1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/aarch-common.c
    trunk/gcc/testsuite/ChangeLog