1 files changed, 21 insertions, 0 deletions
diff --git a/sysdeps/i386/bits/string.h b/sysdeps/i386/bits/string.h
index 44d6f8ba43..6fc78b3799 100644
--- a/sysdeps/i386/bits/string.h
+++ b/sysdeps/i386/bits/string.h
@@ -305,6 +305,27 @@ memchr (__const void *__s, int __c, size_t __n)
 }
 #endif
 
+#define _HAVE_STRING_ARCH_memrchr 1
+#ifndef _FORCE_INLINES
+__STRING_INLINE void *
+__memrchr (__const void *__s, int __c, size_t __n)
+{
+  register unsigned long int __d0;
+  register void *__res;
+  if (__n == 0)
+    return NULL;
+  __asm__ __volatile__
+    ("std\n\t"
+     "repne; scasb\n\t"
+     "je 1f\n\t"
+     "movl $1,%0\n"
+     "1:"
+     : "=D" (__res), "=&c" (__d0)
+     : "a" (__c), "0" (__s), "1" (__n));
+  return __res - 1;
+}
+#endif
+
 /* Return the length of S.  */
 #define _HAVE_STRING_ARCH_strlen 1
 #ifndef _FORCE_INLINES