2015-02-10 Michael Collison <michael.collison@linaro.org>

2015-02-10  Michael Collison  <michael.collison@linaro.org>

	Backport from trunk r217431.
	2014-11-12  Jiong Wang  <jiong.wang@arm.com>

	* config/aarch64/aarch64.h (CALL_USED_REGISTERS): Mark LR as
	caller-save.
	(EPILOGUE_USES): Guard the check by epilogue_completed.
	* config/aarch64/aarch64.c (aarch64_layout_frame): Explictly check for
	LR.
	(aarch64_can_eliminate): Check LR_REGNUM liveness.

2015-02-10  Michael Collison  <michael.collison@linaro.org>

	Backport from trunk r217431.
	2014-11-12  Jiong Wang  <jiong.wang@arm.com>

	* gcc.target/aarch64/lr_free_1.c: New testcase for -fomit-frame-pointer.
	* gcc.target/aarch64/lr_free_2.c: New testcase for leaf
	-fno-omit-frame-pointer.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/linaro/gcc-4_9-branch@220569 138bc75d-0d04-0410-961f-82ee72b054a4