MIPS16/GCC: Improve `casesi_internal_mips16_<mode>'s instruction count estimate

	gcc/
	* config/mips/mips.md (casesi_internal_mips16_<mode>): Set
	`insn_count' to 11 rather than 16.

From-SVN: r242516

gcc/ChangeLog

 2016-11-16  Maciej W. Rozycki  <macro@imgtec.com>
 
+	* config/mips/mips.md (casesi_internal_mips16_<mode>): Set
+	`insn_count' to 11 rather than 16.
+
+2016-11-16  Maciej W. Rozycki  <macro@imgtec.com>
+
 	* config/mips/mips.md (casesi_internal_mips16_<mode>): Use the
 	`ltu' rather than `leu' operation in the RTL pattern
 

gcc/config/mips/mips.md

@@ -6444,7 +6444,7 @@
 
   return "j\t%4";
 }
-  [(set_attr "insn_count" "16")])
+  [(set_attr "insn_count" "11")])
 
 ;; For TARGET_USE_GOT, we save the gp in the jmp_buf as well.
 ;; While it is possible to either pull it off the stack (in the