[AArch64] Classify FRAME_POINTER_REGNUM and ARG_POINTER_REGNUM as POINTER_REGS.

From-SVN: r203707

gcc/ChangeLog

+2013-10-16  Marcus Shawcroft  <marcus.shawcroft@arm.com>
+
+	* config/aarch64/aarch64.c (aarch64_regno_regclass): Classify
+	FRAME_POINTER_REGNUM and ARG_POINTER_REGNUM as POINTER_REGS.
+
 2013-10-16  Yvan Roux  <yvan.roux@linaro.org>
 
 	* config/arm/arm.opt (mlra): New option.

gcc/config/aarch64/aarch64.c

@@ -3904,7 +3904,7 @@ aarch64_regno_regclass (unsigned regno)
 
   if (regno == FRAME_POINTER_REGNUM
       || regno == ARG_POINTER_REGNUM)
-    return CORE_REGS;
+    return POINTER_REGS;
 
   if (FP_REGNUM_P (regno))
     return FP_LO_REGNUM_P (regno) ?  FP_LO_REGS : FP_REGS;