xtensa.md (fix_return_addr): Remove.

	* config/xtensa/xtensa.md (fix_return_addr): Remove.
	* config/xtensa/xtensa-protos.h (xtensa_initialize_trampoline): New.
	(xtensa_trampoline_template): New.
	* config/xtensa/xtensa.c (MIN_FRAME_SIZE): Moved here from xtensa.h.
	(xtensa_return_addr): Expand to standard Xtensa insns instead of
	fix_return_addr.  Get high bits from a local label.
	(xtensa_trampoline_template): New function with code moved from
	TRAMPOLINE_TEMPLATE in xtensa.h.  Use L32R instead of CALL0 except
	when using CONST16 or absolute-mode literals.
	(xtensa_initialize_trampoline): New function with code moved from
	INITIALIZE_TRAMPOLINE in xtensa.h.  Use different offsets depending
	on which trampoline version is used.
	* config/xtensa/lib2funcs.S (TRAMPOLINE_SIZE): Add comment.
	* config/xtensa/xtensa.h (TARGET_ABSOLUTE_LITERALS): Define.
	(MIN_FRAME_SIZE): Moved to xtensa.c.
	(TRAMPOLINE_TEMPLATE): Use xtensa_trampoline_template.
	(TRAMPOLINE_SIZE): Two versions of the trampoline have different sizes.
	(INITIALIZE_TRAMPOLINE): Use xtensa_initialize_trampoline.
	* config/xtensa/ieee754-df.S (XCHAL_NO_MUL): Define.
	(__muldf3): Use CALL12 instead of CALL0 to invoke .Lmul_mulsi3
	helper when not using the CALL0 ABI.  Change .Lmul_mulsi3 to match.
	* config/xtensa/lib1funcs.asm (__umulsidi3): Likewise.
	* config/xtensa/ieee754-sf.S (__mulsf3): Likewise.

From-SVN: r131108