---
 testsuite/gdb.reverse/i386-reverse.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--- a/testsuite/gdb.reverse/i386-reverse.c
+++ b/testsuite/gdb.reverse/i386-reverse.c
@@ -38,9 +38,25 @@ inc_dec_tests (void)
   asm ("dec %edi");
 } /* end inc_dec_tests */
 
+void
+string_insn_tests (void)
+{
+  register char x asm("ax");
+  char *dstp = (char *) 1;
+  int d0;
+  int len = 0;
+
+  asm volatile("rep\n"
+	       "stosb" /* %0, %2, %3 */ :
+	       "=D" (dstp), "=c" (d0) :
+	       "0" (dstp), "1" (len), "a" (x) :
+	       "memory");
+}
+
 int 
 main ()
 {
   inc_dec_tests ();
+  string_insn_tests ();
   return 0;	/* end of main */
 }