mangle.c (write_expression): Mangle dependent name as source-name.

        * mangle.c (write_expression): Mangle dependent name as
        source-name.

From-SVN: r145364

gcc/cp/ChangeLog

-2009-03-30  Jason Merrill  <jason@redhat.com>
+2009-03-31  Jason Merrill  <jason@redhat.com>
+
+	* mangle.c (write_expression): Mangle dependent name as
+	source-name.
 
 	PR c++/38030, 38850, 39070
 	* pt.c (type_dependent_expression_p_push): New fn.

gcc/cp/mangle.c

@@ -2159,12 +2159,6 @@ write_expression (tree expr)
       code = TREE_CODE (expr);
     }
 
-  if (code == OVERLOAD)
-    {
-      expr = OVL_FUNCTION (expr);
-      code = TREE_CODE (expr);
-    }
-
   /* Handle pointers-to-members by making them look like expression
      nodes.  */
   if (code == PTRMEM_CST)
@@ -2344,7 +2338,25 @@ write_expression (tree expr)
       switch (code)
 	{
 	case CALL_EXPR:
-	  write_expression (CALL_EXPR_FN (expr));
+	  {
+	    tree fn = CALL_EXPR_FN (expr);
+
+	    if (TREE_CODE (fn) == ADDR_EXPR)
+	      fn = TREE_OPERAND (fn, 0);
+
+	    /* Mangle a dependent name as the name, not whatever happens to
+	       be the first function in the overload set.  */
+	    if ((TREE_CODE (fn) == FUNCTION_DECL
+		 || TREE_CODE (fn) == OVERLOAD)
+		&& type_dependent_expression_p_push (expr))
+	      fn = DECL_NAME (get_first_fn (fn));
+
+	    if (TREE_CODE (fn) == IDENTIFIER_NODE)
+	      write_source_name (fn);
+	    else
+	      write_expression (fn);
+	  }
+
 	  for (i = 0; i < call_expr_nargs (expr); ++i)
 	    write_expression (CALL_EXPR_ARG (expr, i));
 	  write_char ('E');

gcc/testsuite/ChangeLog

+2009-03-31  Jason Merrill  <jason@redhat.com>
+
+	* g++.dg/cpp0x/auto6.C: Adjust expected mangling.
+	* g++.dg/cpp0x/auto12.C: Likewise.
+
 2009-03-31  Richard Guenther  <rguenther@suse.de>
 
 	PR middle-end/31029

gcc/testsuite/g++.dg/cpp0x/auto12.C

@@ -58,6 +58,6 @@ int main()
   A<int>().h(1);
   // { dg-final { scan-assembler  "_ZN1AIiE1jIiEEDTplfp_clL_Z1xvEEET_" } }
   A<int>().j(1);
-  // { dg-final { scan-assembler  "_Z1gIIidEEDTclL_Z1fEspplfp_Li1EEEDpT_" } }  
+  // { dg-final { scan-assembler  "_Z1gIIidEEDTcl1fspplfp_Li1EEEDpT_" } }  
   g(42, 1.0);
 }

gcc/testsuite/g++.dg/cpp0x/auto6.C

@@ -101,7 +101,7 @@ int main()
   auto i4 = add4(1, 2.0);
   // { dg-final { scan-assembler "_Z4add2IidEDTplcvT__EcvT0__EES0_S1_" } }
   auto i2 = add2(1, 2.0);
-  // { dg-final { scan-assembler "_Z4add3IidEDTclL_Z2agEfp_fp0_EET_T0_" } }
+  // { dg-final { scan-assembler "_Z4add3IidEDTcl2agfp_fp0_EET_T0_" } }
   auto i3 = add3(1, 2.0);
   // { dg-final { scan-assembler "_Z1fI1AIiEEDTclptfp_1fEEPT_" } }
   f(p);