MIPS16/GCC: Emit explicit JRC from `casesi_internal_mips16_<mode>' insn

	gcc/
	* config/mips/mips.md (casesi_internal_mips16_<mode>):
	Explicitly switch between JR and JRC for the table jump.  Adjust
	instruction count.

From-SVN: r242517

gcc/ChangeLog

 2016-11-16  Maciej W. Rozycki  <macro@imgtec.com>
 
+	* config/mips/mips.md (casesi_internal_mips16_<mode>):
+	Explicitly switch between JR and JRC for the table jump.  Adjust
+	instruction count.
+
+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.
 

gcc/config/mips/mips.md

@@ -6442,9 +6442,15 @@
 
   output_asm_insn ("<d>addu\t%4, %4, %5", operands);
 
-  return "j\t%4";
+  if (GENERATE_MIPS16E)
+    return "jrc\t%4";
+  else
+    return "jr\t%4";
 }
-  [(set_attr "insn_count" "11")])
+  [(set (attr "insn_count")
+	(if_then_else (match_test "GENERATE_MIPS16E")
+		      (const_string "10")
+		      (const_string "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