* decl.c (decls_match): Check versions later.

From-SVN: r195921

gcc/cp/ChangeLog

 2013-02-09  Jason Merrill  <jason@redhat.com>
 
+	* decl.c (decls_match): Check versions later.
+
 	PR c++/56238
 	* pt.c (build_non_dependent_expr): Don't try to fold
 	instantiation-dependent expressions.

gcc/cp/decl.c

@@ -976,36 +976,6 @@ decls_match (tree newdecl, tree olddecl)
       if (t1 != t2)
 	return 0;
 
-      /* The decls dont match if they correspond to two different versions
-	 of the same function.   Disallow extern "C" functions to be
-	 versions for now.  */
-      if (compparms (p1, p2)
-	  && same_type_p (TREE_TYPE (f1), TREE_TYPE (f2))
-	  && !DECL_EXTERN_C_P (newdecl)
-	  && !DECL_EXTERN_C_P (olddecl)
-	  && targetm.target_option.function_versions (newdecl, olddecl))
-	{
-	  /* Mark functions as versions if necessary.  Modify the mangled decl
-	     name if necessary.  */
-	  if (DECL_FUNCTION_VERSIONED (newdecl)
-	      && DECL_FUNCTION_VERSIONED (olddecl))
-	    return 0;
-	  if (!DECL_FUNCTION_VERSIONED (newdecl))
-	    {
-	      DECL_FUNCTION_VERSIONED (newdecl) = 1;
-	      if (DECL_ASSEMBLER_NAME_SET_P (newdecl))
-	        mangle_decl (newdecl);
-	    }
-	  if (!DECL_FUNCTION_VERSIONED (olddecl))
-	    {
-	      DECL_FUNCTION_VERSIONED (olddecl) = 1;
-	      if (DECL_ASSEMBLER_NAME_SET_P (olddecl))
-	       mangle_decl (olddecl);
-	    }
-	  record_function_versions (olddecl, newdecl);
-	  return 0;
-	}
-
       if (CP_DECL_CONTEXT (newdecl) != CP_DECL_CONTEXT (olddecl)
 	  && ! (DECL_EXTERN_C_P (newdecl)
 		&& DECL_EXTERN_C_P (olddecl)))
@@ -1063,6 +1033,35 @@ decls_match (tree newdecl, tree olddecl)
 	}
       else
 	types_match = 0;
+
+      /* The decls dont match if they correspond to two different versions
+	 of the same function.   Disallow extern "C" functions to be
+	 versions for now.  */
+      if (types_match
+	  && !DECL_EXTERN_C_P (newdecl)
+	  && !DECL_EXTERN_C_P (olddecl)
+	  && targetm.target_option.function_versions (newdecl, olddecl))
+	{
+	  /* Mark functions as versions if necessary.  Modify the mangled decl
+	     name if necessary.  */
+	  if (DECL_FUNCTION_VERSIONED (newdecl)
+	      && DECL_FUNCTION_VERSIONED (olddecl))
+	    return 0;
+	  if (!DECL_FUNCTION_VERSIONED (newdecl))
+	    {
+	      DECL_FUNCTION_VERSIONED (newdecl) = 1;
+	      if (DECL_ASSEMBLER_NAME_SET_P (newdecl))
+	        mangle_decl (newdecl);
+	    }
+	  if (!DECL_FUNCTION_VERSIONED (olddecl))
+	    {
+	      DECL_FUNCTION_VERSIONED (olddecl) = 1;
+	      if (DECL_ASSEMBLER_NAME_SET_P (olddecl))
+	       mangle_decl (olddecl);
+	    }
+	  record_function_versions (olddecl, newdecl);
+	  return 0;
+	}
     }
   else if (TREE_CODE (newdecl) == TEMPLATE_DECL)
     {