gcc/gcc41-pr33962.patch
Jakub Jelinek d8d9cbe2d6 4.1.2-34
2007-11-25 20:29:41 +00:00

40 lines
1.0 KiB
Diff

2007-11-20 Jakub Jelinek <jakub@redhat.com>
PR c++/33962
* pt.c (more_specialized_fn): Don't segfault if one or
both argument list end with ellipsis.
* g++.dg/overload/template3.C: New test.
--- gcc/cp/pt.c (revision 130307)
+++ gcc/cp/pt.c (revision 130308)
@@ -13523,6 +13523,10 @@ more_specialized_fn (tree pat1, tree pat
args1 = TREE_CHAIN (args1);
args2 = TREE_CHAIN (args2);
+
+ /* Stop when an ellipsis is seen. */
+ if (args1 == NULL_TREE || args2 == NULL_TREE)
+ break;
}
processing_template_decl--;
--- gcc/testsuite/g++.dg/overload/template3.C (revision 0)
+++ gcc/testsuite/g++.dg/overload/template3.C (revision 130308)
@@ -0,0 +1,15 @@
+// PR c++/33962
+// { dg-do compile }
+
+template <class T> struct A;
+
+template <class U> void foo (const U &x, ...);
+template <class T> void foo (const A<T> &x, ...);
+
+void bar (const A<int> &x, const char *y)
+{
+ foo (x, y);
+}
+
+/* { dg-final { scan-assembler "_Z3fooIiEvRK1AIT_Ez" } } */
+/* { dg-final { scan-assembler-not "_Z3fooI1AIiEEvRKT_z" } } */