-fuse-caller-save - Enable for AArch64

-fuse-caller-save - Enable for AArch64

2014-05-30  Tom de Vries  <tom@codesourcery.com>

	* config/aarch64/aarch64-protos.h (aarch64_emit_call_insn): Declare.
	* config/aarch64/aarch64.c
	(TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS): Redefine as true.
	(aarch64_emit_call_insn): New function.
	(aarch64_load_symref_appropriately): Use aarch64_emit_call_insn instead
	of emit_call_insn.
	* config/aarch64/aarch64.md (define_expand "call_internal")
	(define_expand "call_value_internal", define_expand "sibcall_internal")
	(define_expand "sibcall_value_internal"): New.
	(define_expand "call", define_expand "call_value")
	(define_expand "sibcall", define_expand "sibcall_value"): Use internal
	expand variant and aarch64_emit_call_insn.

	* gcc.target/aarch64/fuse-caller-save.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211799 138bc75d-0d04-0410-961f-82ee72b054a4