diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index eefdf3b29bc4..2a5f8fc47ad5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2014-11-17  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* g++.dg/ipa/pr63894.C (new): Replace unsigned long with
+	__SIZE_TYPE__.
+
 2014-11-17  Richard Biener  <rguenther@suse.de>
 
 	PR middle-end/63898
diff --git a/gcc/testsuite/g++.dg/ipa/pr63894.C b/gcc/testsuite/g++.dg/ipa/pr63894.C
index d0ba96bc5a38..54409752758c 100644
--- a/gcc/testsuite/g++.dg/ipa/pr63894.C
+++ b/gcc/testsuite/g++.dg/ipa/pr63894.C
@@ -3,7 +3,7 @@
 
 struct A
 {
-  void *operator new(unsigned long, int);
+  void *operator new(__SIZE_TYPE__, int);
 };
 class C
 {