From: zack <zack@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 6 Jul 2007 17:57:58 +0000 (+0000)
Subject: 2007-07-06  Ian Lance Taylor  <iant@google.com>
X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=f03c17bc9da480b383fb3ac81f00663c7b58566d

2007-07-06  Ian Lance Taylor  <iant@google.com>
            Zack Weinberg  <zackw@panix.com>

	PR middle-end/32441
	* builtins.c (std_expand_builtin_va_start): Don't use make_tree.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@126424 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7a9b7c971c5..8bf43ab5c57 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2007-07-06  Ian Lance Taylor  <iant@google.com>
+            Zack Weinberg  <zackw@panix.com>
+
+	PR middle-end/32441
+	* builtins.c (std_expand_builtin_va_start): Don't use make_tree.
+
 2007-07-06  Richard Sandiford  <richard@codesourcery.com>
 
 	* config/sh/sh.md (*prefetch_i4): Disable for TARGET_VXWORKS_RTP.
diff --git a/gcc/builtins.c b/gcc/builtins.c
index cf1d743b30e..45dea020842 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -4649,14 +4649,8 @@ std_build_builtin_va_list (void)
 void
 std_expand_builtin_va_start (tree valist, rtx nextarg)
 {
-  tree t;
-  t = make_tree (sizetype, nextarg);
-  t = fold_convert (ptr_type_node, t);
-
-  t = build2 (MODIFY_EXPR, TREE_TYPE (valist), valist, t);
-  TREE_SIDE_EFFECTS (t) = 1;
-
-  expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
+  rtx va_r = expand_expr (valist, NULL_RTX, VOIDmode, EXPAND_WRITE);
+  convert_move (va_r, nextarg, 0);
 }
 
 /* Expand EXP, a call to __builtin_va_start.  */