Fix warnings occured during profiledboostrap on

	* ipa-inline.c (inline_small_functions): Set default value to
	prevent warning during bootstrap.
	* tree.h: Add pragma guard that ignores false positives during
	bootstrap.

From-SVN: r221211

gcc/ChangeLog

+2015-03-05  Martin Liska  <mliska@suse.cz>
+
+	* ipa-inline.c (inline_small_functions): Set default value to
+	prevent warning during bootstrap.
+	* tree.h: Add pragma guard that ignores false positives during
+	bootstrap.
+
 2015-03-05  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/65310

gcc/ipa-inline.c

@@ -1712,7 +1712,7 @@ inline_small_functions (void)
   FOR_EACH_DEFINED_FUNCTION (node)
     {
       bool update = false;
-      struct cgraph_edge *next;
+      struct cgraph_edge *next = NULL;
       bool has_speculative = false;
 
       if (dump_file)

gcc/tree.h

@@ -3278,6 +3278,11 @@ non_type_check (const_tree __t, const char *__f, int __l, const char *__g)
   return __t;
 }
 
+# if GCC_VERSION >= 4006
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstrict-overflow"
+#endif
+
 inline const_tree *
 tree_vec_elt_check (const_tree __t, int __i,
                     const char *__f, int __l, const char *__g)
@@ -3290,6 +3295,10 @@ tree_vec_elt_check (const_tree __t, int __i,
   //return &__t->vec.a[__i];
 }
 
+# if GCC_VERSION >= 4006
+#pragma GCC diagnostic pop
+#endif
+
 inline const_tree *
 omp_clause_elt_check (const_tree __t, int __i,
                       const char *__f, int __l, const char *__g)