re PR tree-optimization/27830 (ICE: verify_stmts failed (invalid operand to unary operator))

2006-06-13  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27830
	* tree-inline.c (copy_body_r): For copying the operand
	of an ADDR_EXPR make sure to fold &* afterwards.

	* g++.dg/tree-ssa/pr27830.C: New testcase.

From-SVN: r114600

gcc/ChangeLog

+2006-06-13  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/27830
+	* tree-inline.c (copy_body_r): For copying the operand
+	of an ADDR_EXPR make sure to fold &* afterwards.
+
 2006-06-12  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gimplify.c (gimplify_expr): Treat VIEW_CONVERT_EXPR like other

gcc/testsuite/ChangeLog

+2006-06-13  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/27830
+	* g++.dg/tree-ssa/pr27830.C: New testcase.
+
 2006-06-13  Matthew Sachs  <msachs@apple.com>
 
 	* lib/target-supports-dg.exp (check-flags): Include TOOL_OPTIONS in

gcc/testsuite/g++.dg/tree-ssa/pr27830.C

+/* { dg-do compile } */
+/* { dg-options "-O" } */
+
+struct gc{};
+struct transform:public gc
+{
+    double x, y, z, t;
+    transform (void){}
+};
+inline transform f (void)
+{
+    return transform ();
+};
+void transformed (void)
+{
+    new transform (f());
+}
+

gcc/tree-inline.c

@@ -659,7 +659,12 @@ copy_body_r (tree *tp, int *walk_subtrees, void *data)
       else if (TREE_CODE (*tp) == ADDR_EXPR)
 	{
 	  walk_tree (&TREE_OPERAND (*tp, 0), copy_body_r, id, NULL);
-	  recompute_tree_invariant_for_addr_expr (*tp);
+	  /* Handle the case where we substituted an INDIRECT_REF
+	     into the operand of the ADDR_EXPR.  */
+	  if (TREE_CODE (TREE_OPERAND (*tp, 0)) == INDIRECT_REF)
+	    *tp = TREE_OPERAND (TREE_OPERAND (*tp, 0), 0);
+	  else
+	    recompute_tree_invariant_for_addr_expr (*tp);
 	  *walk_subtrees = 0;
 	}
     }