Fix cast in sort_congruence_class_groups_by_decl_uid.

2019-09-19  Martin Liska  <mliska@suse.cz>

	* ipa-icf.c (sort_congruence_class_groups_by_decl_uid):
	Use proper casting.

From-SVN: r275969

gcc/ChangeLog

+2019-09-19  Martin Liska  <mliska@suse.cz>
+
+	* ipa-icf.c (sort_congruence_class_groups_by_decl_uid):
+	Use proper casting.
+
 2019-09-19  Richard Henderson  <richard.henderson@linaro.org>
 
 	* config/aarch64/aarch64.c (aarch64_print_operand): Allow integer

gcc/ipa-icf.c

@@ -3373,9 +3373,9 @@ static int
 sort_congruence_class_groups_by_decl_uid (const void *a, const void *b)
 {
   const std::pair<congruence_class_group *, int> *g1
-    = *(const std::pair<congruence_class_group *, int> *const *) a;
+    = (const std::pair<congruence_class_group *, int> *) a;
   const std::pair<congruence_class_group *, int> *g2
-    = *(const std::pair<congruence_class_group *, int> *const *) b;
+    = (const std::pair<congruence_class_group *, int> *) b;
   return g1->second - g2->second;
 }