--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/csky/csky_pipeline_ck802.md	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,77 @@
+;; Instruction scheduling information for C-SKY CK802 processors.
+;; Copyright (C) 2018 Free Software Foundation, Inc.
+;; Contributed by C-SKY Microsystems and Mentor Graphics.
+;;
+;; This file is part of GCC.
+;;
+;; GCC is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3, or (at your option)
+;; any later version.
+;;
+;; GCC is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;; General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with GCC; see the file COPYING3.  If not see
+;; <http://www.gnu.org/licenses/>.  */
+
+(define_automaton "csky_ck802")
+
+(define_cpu_unit "csky_ck802_ex" "csky_ck802")
+(define_cpu_unit "csky_ck802_wb" "csky_ck802")
+
+(define_insn_reservation "ck802_alu" 2
+  (and (match_test "CSKY_TARGET_ARCH (CK802)")
+       (eq_attr "type" "alu"))
+  "csky_ck802_ex, csky_ck802_wb")
+
+(define_insn_reservation "ck802_branch" 2
+  (and (match_test "CSKY_TARGET_ARCH (CK802)")
+       (eq_attr "type" "branch, branch_jmp"))
+  "csky_ck802_ex, csky_ck802_wb")
+
+(define_insn_reservation "ck802_cmp" 2
+  (and (match_test "CSKY_TARGET_ARCH (CK802)")
+       (eq_attr "type" "cmp"))
+  "csky_ck802_ex, csky_ck802_wb")
+
+(define_insn_reservation "ck802_cbranch" 2
+  (and (match_test "CSKY_TARGET_ARCH (CK802)")
+       (eq_attr "type" "cbranch"))
+  "csky_ck802_ex, csky_ck802_wb")
+
+(define_insn_reservation "ck802_call" 2
+  (and (match_test "CSKY_TARGET_ARCH (CK802)")
+       (eq_attr "type" "call, call_jsr"))
+  "csky_ck802_ex, csky_ck802_wb")
+
+(define_insn_reservation "ck802_load" 2
+  (and (match_test "CSKY_TARGET_ARCH (CK802)")
+	(and (eq_attr "type" "load")
+	     (match_test "!csky_minipool_load_p (insn)")))
+  "csky_ck802_ex, csky_ck802_wb")
+
+(define_insn_reservation "ck802_pool" 2
+  (and (match_test "CSKY_TARGET_ARCH (CK802)")
+       (and (eq_attr "type" "load")
+	    (match_test "csky_minipool_load_p (insn)")))
+  "csky_ck802_ex, csky_ck802_wb")
+
+(define_insn_reservation "ck802_store" 2
+  (and (match_test "CSKY_TARGET_ARCH (CK802)")
+       (eq_attr "type" "store"))
+  "csky_ck802_ex, csky_ck802_wb")
+
+;; Switching between constant pool loads and loads/stores in the data section
+;; carries an extra penalty.
+(define_bypass 3 "ck802_load,ck802_store" "ck802_pool")
+(define_bypass 3 "ck802_pool" "ck802_load,ck802_store")
+
+(define_bypass 1 "*" "ck802_alu")
+
+(define_bypass 1 "*" "ck802_branch")
+
+(define_bypass 2 "ck802_cmp" "ck802_cbranch")