diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3a767f1d0ba8..49f4a87c4724 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-11-20  Andreas Krebbel  <krebbel1@de.ibm.com>
+
+	* gcc.dg/sync-2.c: Add type cast to avoid folding.
+	* gcc.dg/sync-3.c: Likewise.
+
 2008-11-20  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/29215
diff --git a/gcc/testsuite/gcc.dg/sync-2.c b/gcc/testsuite/gcc.dg/sync-2.c
index 7fea8f8fd03b..7794ffd9d365 100644
--- a/gcc/testsuite/gcc.dg/sync-2.c
+++ b/gcc/testsuite/gcc.dg/sync-2.c
@@ -46,7 +46,7 @@ do_qi (void)
     abort ();
   if (__sync_xor_and_fetch(AI+16, 9) != 9)
     abort ();
-  if (__sync_nand_and_fetch(AI+17, 7) != ~7)
+  if (__sync_nand_and_fetch(AI+17, 7) != (char)~7)
     abort ();
 }
 
diff --git a/gcc/testsuite/gcc.dg/sync-3.c b/gcc/testsuite/gcc.dg/sync-3.c
index a359d162fee3..f912405035a6 100644
--- a/gcc/testsuite/gcc.dg/sync-3.c
+++ b/gcc/testsuite/gcc.dg/sync-3.c
@@ -43,7 +43,7 @@ do_qi (void)
     abort ();
   if (__sync_xor_and_fetch(AI+16, 9) != 9)
     abort ();
-  if (__sync_nand_and_fetch(AI+17, 7) != ~7) /* { dg-message "note: '__sync_nand_and_fetch' changed semantics in GCC 4.4" "" } */
+  if (__sync_nand_and_fetch(AI+17, 7) != (char)~7) /* { dg-message "note: '__sync_nand_and_fetch' changed semantics in GCC 4.4" "" } */
     abort ();
 }