gcc/

2014-05-31  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* config/arm/arm.c (TARGET_ATOMIC_ASSIGN_EXPAND_FENV): New define.
	(arm_builtins) : Add ARM_BUILTIN_GET_FPSCR and ARM_BUILTIN_SET_FPSCR.
	(bdesc_2arg) : Add description for builtins __builtins_arm_set_fpscr
	and __builtins_arm_get_fpscr.
	(arm_init_builtins) : Initialize builtins __builtins_arm_set_fpscr and
	__builtins_arm_get_fpscr.
	(arm_expand_builtin) : Expand builtins __builtins_arm_set_fpscr and
	__builtins_arm_ldfpscr.
	(arm_atomic_assign_expand_fenv): New function.
	* config/arm/vfp.md (set_fpscr): New pattern.
	(get_fpscr) : Likewise.
	* config/arm/unspecs.md (unspecv): Add VUNSPEC_GET_FPSCR and
	VUNSPEC_SET_FPSCR.
	* doc/extend.texi (AARCH64 Built-in Functions) : Document
	__builtins_arm_set_fpscr, __builtins_arm_get_fpscr.

From-SVN: r211103