From: froydnj <froydnj@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 21 May 2010 13:17:04 +0000 (+0000)
Subject: 	PR middle-end/44204
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b67573db460a8d652e9bd9c7ec3da8782bd0c099;p=thirdparty%2Fgcc.git

	PR middle-end/44204
	* builtins.c (fold_call_stmt): Pass &error_mark_node if the call
	statement has no arguments.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159662 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 276c80ca44ab..036808189368 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-05-21  Nathan Froyd  <froydnj@codesourcery.com>
+
+	PR middle-end/44204
+	* builtins.c (fold_call_stmt): Pass &error_mark_node if the call
+	statement has no arguments.
+
 2010-05-21  Kai Tietz  <kai.tietz@onevision.com>
 
 	PR/44139
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 6ad95adbc00b..2c9d75095572 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -13699,7 +13699,9 @@ fold_call_stmt (gimple stmt, bool ignore)
       if (DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_MD)
         {
 	  return targetm.fold_builtin (fndecl, nargs,
-				       gimple_call_arg_ptr (stmt, 0), ignore);
+				       (nargs > 0
+					? gimple_call_arg_ptr (stmt, 0)
+					: &error_mark_node), ignore);
         }
       else
 	{