From: Mark Mitchell <mmitchel@gcc.gnu.org>
Date: Fri, 22 Oct 1999 06:35:17 +0000 (+0000)
Subject: cp-tree.def (EMPTY_CLASS_EXPR): New tree node.
X-Git-Tag: prereleases/libstdc++-2.92~9923
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5f7cbe4eb319c0911719f26330b7e61a3f82a7aa;p=thirdparty%2Fgcc.git

cp-tree.def (EMPTY_CLASS_EXPR): New tree node.

	* cp-tree.def (EMPTY_CLASS_EXPR): New tree node.
	* call.c (build_call): Use EMPTY_CLASS_EXPR instead of RTL_EXPR.
	* expr.c (cplus_expand_expr): Expand it.
	* ir.texi: Document EMPTY_CLASS_EXPR.

From-SVN: r30128
---

diff --git a/gcc/cp/expr.c b/gcc/cp/expr.c
index 6a3637b2dda7..e588efbf8d1c 100644
--- a/gcc/cp/expr.c
+++ b/gcc/cp/expr.c
@@ -234,6 +234,10 @@ cplus_expand_expr (exp, target, tmode, modifier)
       expand_internal_throw ();
       return NULL;
 
+    case EMPTY_CLASS_EXPR:
+      /* We don't need to generate any code for an empty class.  */
+      return const0_rtx;
+
     case STMT_EXPR:
       {
 	tree rtl_expr = begin_stmt_expr ();