re PR tree-optimization/40792 (internal error in com_mpi.c at -O3 for gcc 4.4.0)

	PR tree-optimization/40792
	* tree.c (build_function_type_skip_args): Remove bogus assert.

	* gcc.dg/pr40792.c: New test.

From-SVN: r149822

gcc/ChangeLog

+2009-07-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/40792
+	* tree.c (build_function_type_skip_args): Remove bogus assert.
+
 2009-07-20  Jan Hubicka  <jh@suse.cz>
             Martin Jambor  <mjambor@suse.cz>
 

gcc/testsuite/ChangeLog

+2009-07-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/40792
+	* gcc.dg/pr40792.c: New test.
+
 2009-07-20  Ira Rosen  <irar@il.ibm.com>
 
 	* gcc.dg/vect/vect-cond-1.c, gcc.dg/vect/vect-cond-2.c,

gcc/testsuite/gcc.dg/pr40792.c

+/* PR tree-optimization/40792 */
+/* { dg-do compile } */
+/* { dg-options "-O3" } */
+
+void foo (int, char *, int *);
+
+void
+bar (int *a, int *b, ...)
+{
+  int c;
+  char d[256];
+  foo (*b, d, &c);
+}
+
+static int a, b;
+
+void
+baz (int c)
+{
+  bar (&a, &b);
+}

gcc/tree.c

@@ -6299,7 +6299,6 @@ build_function_type_skip_args (tree orig_type, bitmap args_to_skip)
       else
 	new_reversed = void_list_node;
     }
-    gcc_assert (new_reversed);
 
   /* Use copy_node to preserve as much as possible from original type
      (debug info, attribute lists etc.)