diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2d463399120..731bf2c0e91 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2013-01-11  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* gcc.c-torture/compile/pr55921.c: Don't use matching constraints.
+
 2013-01-11  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 
 	PR target/55719
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr55921.c b/gcc/testsuite/gcc.c-torture/compile/pr55921.c
index 8ac9e9b6a64..94b7bceb87c 100644
--- a/gcc/testsuite/gcc.c-torture/compile/pr55921.c
+++ b/gcc/testsuite/gcc.c-torture/compile/pr55921.c
@@ -14,8 +14,8 @@ foo (ucf *in, ucf *out, _Complex float r)
   _Complex float cf;
 
   ucf1.ll = in[i].ll;
-  __asm ("" : "=r" (cf) : "0" (ucf1.ll));
+  __asm ("" : "=r" (cf) : "r" (ucf1.ll));
   cf *= r;
-  __asm ("" : "=r" (ucf1.ll) : "0" (cf));
+  __asm ("" : "=r" (ucf1.ll) : "r" (cf));
   out[i].ll = ucf1.ll;
 }