re PR c++/64667 (-Winit-self ignored for reference fields)

/cp
2015-04-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/64667
	* init.c (perform_member_init): Handle references for -Winit-self.

/testsuite
2015-04-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/64667
	* g++.dg/warn/Winit-self-3.C: New.

From-SVN: r222577

gcc/cp/ChangeLog

+2015-04-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/64667
+	* init.c (perform_member_init): Handle references for -Winit-self.
+
 2015-04-29  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* pt.c (tsubst_expr) <OMP_TARGET_UPDATE>: Use

gcc/cp/init.c

@@ -625,6 +625,9 @@ perform_member_init (tree member, tree init)
       && TREE_CHAIN (init) == NULL_TREE)
     {
       tree val = TREE_VALUE (init);
+      /* Handle references.  */
+      if (REFERENCE_REF_P (val))
+	val = TREE_OPERAND (val, 0);
       if (TREE_CODE (val) == COMPONENT_REF && TREE_OPERAND (val, 1) == member
 	  && TREE_OPERAND (val, 0) == current_class_ref)
 	warning_at (DECL_SOURCE_LOCATION (current_function_decl),

gcc/testsuite/ChangeLog

+2015-04-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/64667
+	* g++.dg/warn/Winit-self-3.C: New.
+
 2015-04-29  Uros Bizjak  <ubizjak@gmail.com>
 
 	* gfortran.dg/namelist_87.f90: Use dg-add-options ieee.

gcc/testsuite/g++.dg/warn/Winit-self-3.C

+// PR c++/64667
+// { dg-options "-Winit-self" }
+
+class A
+{
+public:
+  A(const A&) : a(a) {}  // { dg-warning "initialized with itself" }
+private:
+  int a;
+};
+
+class B
+{
+public:
+  B(const B&) : b(b) {}  // { dg-warning "initialized with itself" }
+private:
+  int* b;
+};
+
+class C
+{
+public:
+  C(const C&) : c(c) {}  // { dg-warning "initialized with itself" }
+private:
+  int& c;
+};