r256377 - in /branches/gcc-6-branch/gcc: Change...

[ktkachov@gcc.gnu.org]

Author: ktkachov
Date: Tue Jan  9 11:38:04 2018
New Revision: 256377

URL: https://gcc.gnu.org/viewcvs?rev=256377&root=gcc&view=rev
Log:
[arm] PR target/82975: Guard against reg_renumber being NULL in arm.h

	Backport from mainline
	2017-12-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR target/82975
	* config/arm/arm.h (TEST_REGNO): Check reg_renumber is set before
	accessing it.  Adjust comment.

	* gcc.dg/pr82975.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.dg/pr82975.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/config/arm/arm.h
    branches/gcc-6-branch/gcc/testsuite/ChangeLog