re PR libgcc/60472 (Warning: array subscript is above array bounds when compiling crtstuff.c)

	PR libgcc/60472
	* crtstuff.c (frame_dummy): Use void **jcr_list temporary
	variable to avoid array subscript is above array bounds warnings.
	Use __builtin_expect when checking *jcr_list for NULL.

From-SVN: r208457

libgcc/ChangeLog

+2014-03-10  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR libgcc/60472
+	* crtstuff.c (frame_dummy): Use void **jcr_list temporary
+	variable to avoid array subscript is above array bounds warnings.
+	Use __builtin_expect when checking *jcr_list for NULL.
+
 2014-03-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	PR libgcc/59339

libgcc/crtstuff.c

@@ -460,12 +460,14 @@ frame_dummy (void)
 #endif /* USE_EH_FRAME_REGISTRY */
 
 #ifdef JCR_SECTION_NAME
-  if (__JCR_LIST__[0])
+  void **jcr_list;
+  __asm ("" : "=g" (jcr_list) : "0" (__JCR_LIST__));
+  if (__builtin_expect (*jcr_list != NULL, 0))
     {
       void (*register_classes) (void *) = _Jv_RegisterClasses;
       __asm ("" : "+r" (register_classes));
       if (register_classes)
-	register_classes (__JCR_LIST__);
+	register_classes (jcr_list);
     }
 #endif /* JCR_SECTION_NAME */
 
@@ -565,12 +567,14 @@ __do_global_ctors_1(void)
 #endif
 
 #ifdef JCR_SECTION_NAME
-  if (__JCR_LIST__[0])
+  void **jcr_list
+  __asm ("" : "=g" (jcr_list) : "0" (__JCR_LIST__));
+  if (__builtin_expect (*jcr_list != NULL, 0))
     {
       void (*register_classes) (void *) = _Jv_RegisterClasses;
       __asm ("" : "+r" (register_classes));
       if (register_classes)
-	register_classes (__JCR_LIST__);
+	register_classes (jcr_list);
     }
 #endif