diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index a0c1e30c5a7..5e8b506aabf 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2020-01-18  Hans-Peter Nilsson  <hp@axis.com>
+
+	* config/cris/arit.c (DS): Apply attribute __fallthrough__.
+
 2020-01-18  John David Anglin  <danglin@gcc.gnu.org>
 
 	PR libgcc/92988
diff --git a/libgcc/config/cris/arit.c b/libgcc/config/cris/arit.c
index ba1c1e7669a..3369559ffa4 100644
--- a/libgcc/config/cris/arit.c
+++ b/libgcc/config/cris/arit.c
@@ -128,7 +128,8 @@ do_31div (unsigned long a, unsigned long b)
      i.e. "a - (b - 1) == (a - b) + 1".  */
   b--;
 
-#define DS __asm__ ("dstep %2,%0" : "=r" (a) : "0" (a), "r" (b))
+#define DS __asm__ ("dstep %2,%0" : "=r" (a) : "0" (a), "r" (b)); \
+ __attribute__ ((__fallthrough__))
 
   switch (quot_digits)
     {