--- a/gcc/config/mips/loongson.md	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/config/mips/loongson.md	Thu Oct 25 07:37:49 2018 +0900
@@ -1,6 +1,6 @@
 ;; Machine description for Loongson-specific patterns, such as
 ;; ST Microelectronics Loongson-2E/2F etc.
-;; Copyright (C) 2008-2017 Free Software Foundation, Inc.
+;; Copyright (C) 2008-2018 Free Software Foundation, Inc.
 ;; Contributed by CodeSourcery.
 ;;
 ;; This file is part of GCC.
@@ -381,8 +381,8 @@
   "TARGET_HARD_FLOAT && TARGET_LOONGSON_VECTORS"
 {
   rtx ext = gen_reg_rtx (SImode);
-  emit_move_insn (ext, gen_lowpart (SImode, operands[1]));
-  operands[1] = ext;
+  emit_move_insn (ext, gen_lowpart (SImode, operands[2]));
+  operands[2] = ext;
 })
 
 ;; Multiply and add packed integers.
@@ -784,19 +784,6 @@
   "punpcklwd\t%0,%1,%2"
   [(set_attr "type" "fcvt")])
 
-(define_expand "vec_perm_const<mode>"
-  [(match_operand:VWHB 0 "register_operand" "")
-   (match_operand:VWHB 1 "register_operand" "")
-   (match_operand:VWHB 2 "register_operand" "")
-   (match_operand:VWHB 3 "" "")]
-  "TARGET_HARD_FLOAT && TARGET_LOONGSON_VECTORS"
-{
-  if (mips_expand_vec_perm_const (operands))
-    DONE;
-  else
-    FAIL;
-})
-
 (define_expand "vec_unpacks_lo_<mode>"
   [(match_operand:<V_stretch_half> 0 "register_operand" "")
    (match_operand:VHB 1 "register_operand" "")]