diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 00273e5fc397..0e4794ce36f9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-11-05  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	PR rtl-optimization/87871
+	* combine.c (make_more_copies): Skip if dest is frame_pointer_rtx.
+
 2018-11-05  Paul Koning  <ni1d@arrl.net>
 
 	* doc/sourcebuild.texi (target attributes): Document new "inf"
diff --git a/gcc/combine.c b/gcc/combine.c
index 3e2042886d59..93bd3da26d7b 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -14959,6 +14959,9 @@ make_more_copies (void)
 	  rtx dest = SET_DEST (set);
 	  if (dest == pc_rtx)
 	    continue;
+	  /* See PR87871.  */
+	  if (dest == frame_pointer_rtx)
+	    continue;
 	  rtx src = SET_SRC (set);
 	  if (!(REG_P (src) && HARD_REGISTER_P (src)))
 	    continue;