re PR rtl-optimization/8396 ([sparc] optimizer ICE)

	PR optimization/8396
	* tree-inline.c (initialize_inlined_parameters): Make sure the value
	of read-only constant arguments is passed with the right type.

From-SVN: r64358

gcc/ChangeLog

+2003-03-14  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
+	PR optimization/8396
+	* tree-inline.c (initialize_inlined_parameters): Make sure the value
+	of read-only constant arguments is passed with the right type.
+
 2003-03-14  Steven Bosscher  <steven@gcc.gnu.org>
 
 	* doc/extend.texi (Function Names): Make the example compilable.

gcc/testsuite/ChangeLog

+2003-03-14  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
+	* gcc.c-torture/compile/20030314-1.c: New test.
+
 2003-03-13  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	* gcc.dg/dll-1.c: Remove thumb target. Change exp to _exp. 

gcc/testsuite/gcc.c-torture/compile/20030314-1.c

+/* PR optimization/8396 */
+/* Originator: <papadopo@shfj.cea.fr> */
+
+/* Verify that the tree inliner doesn't mess up the types
+   when passing the value of read-only constant arguments.  */
+
+static inline bar(const short int xs, const short int xe)
+{
+  if (xe && (xs < xe))
+    ;
+}
+  
+void f()
+{
+  short int xe;
+
+  bar(0, xe);
+}

gcc/tree-inline.c

@@ -666,6 +666,10 @@ initialize_inlined_parameters (id, args, fn, block)
 	      if (DECL_P (value))
 		value = build1 (NOP_EXPR, TREE_TYPE (value), value);
 
+	      /* If this is a constant, make sure it has the right type.  */
+	      else if (TREE_TYPE (value) != TREE_TYPE (p))
+		value = fold (build1 (NOP_EXPR, TREE_TYPE (p), value));
+
 	      splay_tree_insert (id->decl_map,
 				 (splay_tree_key) p,
 				 (splay_tree_value) value);