re PR middle-end/18299 (ICE in gimple-lower)

2004-11-08  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/18299
        * gcc.c-torture/pr18299-1.c: New test.

2004-11-08  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/18299
        * tree-inline.c (copy_body_r): Change "t = t" to empty
        statement instead of "t".

From-SVN: r90295

gcc/ChangeLog

+2004-11-08  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	PR tree-opt/18299
+	* tree-inline.c (copy_body_r): Change "t = t" to empty
+	statement instead of "t".
+
 2004-11-08  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* modulo-sched.c (create_partial_schedule,

gcc/testsuite/ChangeLog

+2004-11-08  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	PR tree-opt/18299
+	* gcc.c-torture/pr18299-1.c: New test.
+
 2004-11-06  Andreas Schwab  <schwab@suse.de>
 
 	* gcc.dg/pr16286.c: Also test for bool and pixel.

gcc/testsuite/gcc.c-torture/pr18299-1.c

+/* We used to ICE in gimple-lower because we
+   would produce __t (VAR_DECL) as a statement in the
+   instruction stream which is not valid. */
+
+static inline int f(int i)
+{
+  const int __t = (__t);
+}
+int g(void)
+{
+  return f(0);
+}

gcc/tree-inline.c

@@ -558,7 +558,7 @@ copy_body_r (tree *tp, int *walk_subtrees, void *data)
 	      STRIP_TYPE_NOPS (value);
 	      if (TREE_CONSTANT (value) || TREE_READONLY_DECL_P (value))
 		{
-		  *tp = value;
+		  *tp = build_empty_stmt ();
 		  return copy_body_r (tp, walk_subtrees, data);
 		}
 	    }