[AArch64][5/14] Make flag_omit_leaf_frame_pointer intialize to 2. Define and use…

[AArch64][5/14] Make flag_omit_leaf_frame_pointer intialize to 2. Define and use TARGET_OMIT_LEAF_FRAME_POINTER

	* config/aarch64/aarch64.opt (momit-leaf-frame-pointer): Initialize
	flag_omit_leaf_frame_pointer to 2.

From-SVN: r226557

gcc/ChangeLog

 2015-08-04  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
+	* config/aarch64/aarch64.opt (momit-leaf-frame-pointer): Initialize
+	flag_omit_leaf_frame_pointer to 2.
+
+2015-08-04  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
 	* config/aarch64/aarch64.h (TARGET_FIX_ERR_A53_835769_DEFAULT): Always
 	define to 0 or 1.
 	(TARGET_FIX_ERR_A53_835769): New macro.

gcc/config/aarch64/aarch64.opt

@@ -77,7 +77,7 @@ Target Report RejectNegative Mask(STRICT_ALIGN)
 Don't assume that unaligned accesses are handled by the system
 
 momit-leaf-frame-pointer
-Target Report Save Var(flag_omit_leaf_frame_pointer) Init(1)
+Target Report Save Var(flag_omit_leaf_frame_pointer) Init(2)
 Omit the frame pointer in leaf functions
 
 mtls-dialect=