diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 981d0d1c8e8..b774fbc8812 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-12-03  Richard Biener  <rguenther@suse.de>
+
+	* gcc.dg/torture/pr35634.c: Use signed char.
+	* g++.dg/torture/pr35634.C: Likewise.
+
 2012-12-02  Marek Polacek  <polacek@redhat.com>
 
 	PR middle-end/54838
diff --git a/gcc/testsuite/g++.dg/torture/pr35634.C b/gcc/testsuite/g++.dg/torture/pr35634.C
index 00848e35d73..3c888ad43e1 100644
--- a/gcc/testsuite/g++.dg/torture/pr35634.C
+++ b/gcc/testsuite/g++.dg/torture/pr35634.C
@@ -14,6 +14,6 @@ void foo (int i)
 
 int main ()
 {
-    char c;
+    signed char c;
     for (c = 0; ; c++) foo (c);
 }
diff --git a/gcc/testsuite/gcc.dg/torture/pr35634.c b/gcc/testsuite/gcc.dg/torture/pr35634.c
index 32df7d48c28..73f860f2b10 100644
--- a/gcc/testsuite/gcc.dg/torture/pr35634.c
+++ b/gcc/testsuite/gcc.dg/torture/pr35634.c
@@ -14,6 +14,6 @@ void foo (int i)
 
 int main ()
 {
-    char c;
+    signed char c;
     for (c = 0; ; c++) foo (c);
 }