* c-typeck.c (common_type): push and pop binding level around

	calling common_type on function parameters.

	* gcc.c-torture/compile/20010202-1.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@39467 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 5 insertions, 0 deletions

diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index 3b8f9b090cf..1ff44d21369 100644
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -353,6 +353,9 @@ common_type (t1, t2)
 	/* If both args specify argument types, we must merge the two
 	   lists, argument by argument.  */
 
+	pushlevel (0);
+	declare_parm_level (1);
+
 	len = list_length (p1);
 	newargs = 0;
 
@@ -412,6 +415,8 @@ common_type (t1, t2)
 	  parm_done: ;
 	  }
 
+	poplevel (0, 0, 0);
+
 	t1 = build_function_type (valtype, newargs);
 	/* ... falls through ...  */
       }