Fix breakage with missing decl check for arm-none-eabi builds.

2013-05-16  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

	PR target/19599
	* config/arm/arm.c (arm_function_ok_for_sibcall): Add check
	for NULL decl.

From-SVN: r198973

gcc/ChangeLog

+2013-05-16  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+
+	PR target/19599
+	* config/arm/arm.c (arm_function_ok_for_sibcall): Add check
+	for NULL decl.
+
 2013-05-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* reorg.c (link_cc0_insns): Wrap in #ifdef HAVE_cc0.

gcc/config/arm/arm.c

@@ -5426,6 +5426,7 @@ arm_function_ok_for_sibcall (tree decl, tree exp)
      sibling calls.  */
   if (TARGET_AAPCS_BASED
       && arm_abi == ARM_ABI_AAPCS
+      && decl
       && DECL_WEAK (decl))
     return false;