Fix length computation for movsi_insv which resulted in regressions due to out…

Fix length computation for movsi_insv which resulted in regressions due to out of range branches on the bfin port.

	* config/bfin/bfin.md (movsi_insv): Add length attribute.

gcc/ChangeLog

+2020-03-10  Jeff Law  <law@redhat.com>
+
+	* config/bfin/bfin.md (movsi_insv): Add length attribute.
+
 2020-03-10  Jiufu Guo  <guojiufu@linux.ibm.com>
 
 	PR target/93709

gcc/config/bfin/bfin.md

@@ -752,7 +752,8 @@
   "@
    %d0 = %h1 << 0%!
    %d0 = %1;"
-  [(set_attr "type" "dsp32shiftimm,mvi")])
+  [(set_attr "type" "dsp32shiftimm,mvi")
+   (set_attr "length" "*,4")])
 
 (define_expand "insv"
   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "")