re PR java/17329 (ICE: SEGV in java_gimplify_expr)

	PR java/17329:
	* java-gimplify.c (java_gimplify_expr) <SAVE_EXPR>: Ignore case
	where operand is null.

From-SVN: r87961

gcc/java/ChangeLog

 2004-09-23  Tom Tromey  <tromey@redhat.com>
 
+	PR java/17329:
+	* java-gimplify.c (java_gimplify_expr) <SAVE_EXPR>: Ignore case
+	where operand is null.
+
+2004-09-23  Tom Tromey  <tromey@redhat.com>
+
 	PR java/17380:
 	* parse.y (not_accessible_p): Allow access to protected members
 	even when class is not static.

gcc/java/java-gimplify.c

@@ -108,7 +108,10 @@ java_gimplify_expr (tree *expr_p, tree *pre_p ATTRIBUTE_UNUSED,
       return GS_UNHANDLED;
 
     case SAVE_EXPR:
-      if (TREE_CODE (TREE_OPERAND (*expr_p, 0)) == VAR_DECL)
+      /* Note that we can see <save_expr NULL> if the save_expr was
+	 already handled by gimplify_save_expr.  */
+      if (TREE_OPERAND (*expr_p, 0) != NULL_TREE
+	  && TREE_CODE (TREE_OPERAND (*expr_p, 0)) == VAR_DECL)
 	TREE_OPERAND (*expr_p, 0) 
 	  = java_replace_reference (TREE_OPERAND (*expr_p, 0), 
 			       /* want_lvalue */ false);