--- /dev/null
+;; DFA-based pipeline description for MIPS32 model 74k.
+;; Contributed by MIPS Technologies and CodeSourcery.
+;;
+;; Reference:
+;; "MIPS32 74K Microarchitecure Specification Rev. 01.02 Jun 15, 2006"
+;; "MIPS32 74Kf Processor Core Datasheet Jun 2, 2006"
+;;
+;; Copyright (C) 2007 Free Software Foundation, Inc.
+;;
+;; 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 "r74k_mdu_pipe, r74k_alu_pipe, r74k_agen_pipe, r74k_fpu")
+(define_cpu_unit "r74k_mul" "r74k_mdu_pipe")
+(define_cpu_unit "r74k_alu" "r74k_alu_pipe")
+(define_cpu_unit "r74k_agen" "r74k_agen_pipe")
+(define_cpu_unit "r74k_fpu_arith" "r74k_fpu")
+(define_cpu_unit "r74k_fpu_ldst" "r74k_fpu")
+
+;; --------------------------------------------------------------
+;; Producers
+;; --------------------------------------------------------------
+
+;; ALU: Logicals/Arithmetics
+;; - Logicals, move (addu/addiu with rt = 0), Set less than,
+;; sign extend - 1 cycle
+(define_insn_reservation "r74k_int_logical" 1
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "logical,move,signext,slt"))
+ "r74k_alu")
+
+;; - Arithmetics - 2 cycles
+(define_insn_reservation "r74k_int_arith" 2
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "arith,const,shift,clz"))
+ "r74k_alu")
+
+(define_insn_reservation "r74k_int_nop" 0
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "nop"))
+ "nothing")
+
+(define_insn_reservation "r74k_int_cmove" 4
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "condmove"))
+ "r74k_agen*2")
+
+;; MDU: fully pipelined multiplier
+;; mult - delivers result to hi/lo in 4 cycle (pipelined)
+(define_insn_reservation "r74k_int_mult" 4
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "imul"))
+ "r74k_alu+r74k_mul")
+
+;; madd, msub - delivers result to hi/lo in 4 cycle (pipelined)
+(define_insn_reservation "r74k_int_madd" 4
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "imadd"))
+ "r74k_alu+r74k_mul")
+
+;; mul - delivers result to general register in 7 cycles
+(define_insn_reservation "r74k_int_mul3" 7
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "imul3"))
+ "r74k_alu+r74k_mul")
+
+;; mfhi, mflo, mflhxu - deliver result to gpr in 7 cycles
+(define_insn_reservation "r74k_int_mfhilo" 7
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "mfhilo"))
+ "r74k_alu+r74k_mul")
+
+;; mthi, mtlo, mtlhx - deliver result to hi/lo, thence madd, handled as bypass
+(define_insn_reservation "r74k_int_mthilo" 7
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "mthilo"))
+ "r74k_alu+r74k_mul")
+
+;; div - default to 50 cycles for 32bit operands. Faster for 8 bit,
+;; but is tricky to identify.
+(define_insn_reservation "r74k_int_div" 50
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "idiv"))
+ "r74k_alu+r74k_mul*50")
+
+;; call
+(define_insn_reservation "r74k_int_call" 1
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "call"))
+ "r74k_agen")
+
+;; branch/jump
+(define_insn_reservation "r74k_int_jump" 1
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "branch,jump"))
+ "r74k_agen")
+
+;; loads: lb, lbu, lh, lhu, ll, lw, lwl, lwr, lwpc, lwxs
+;; prefetch: prefetch, prefetchx
+(define_insn_reservation "r74k_int_load" 3
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "load,prefetch,prefetchx"))
+ "r74k_agen")
+
+;; stores
+(define_insn_reservation "r74k_int_store" 1
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (and (eq_attr "type" "store")
+ (eq_attr "mode" "!unknown")))
+ "r74k_agen")
+
+
+;; Unknowns - Currently these include blockage, consttable and alignment
+;; rtls. They do not really affect scheduling latency, (blockage
+;; affects scheduling via log links, but not used here).
+;;
+(define_insn_reservation "r74k_unknown" 1
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "unknown"))
+ "r74k_alu")
+
+(define_insn_reservation "r74k_multi" 10
+ (and (eq_attr "cpu" "74kc,74kf2_1,74kf1_1,74kf3_2")
+ (eq_attr "type" "multi"))
+ "(r74k_alu+r74k_agen)*10")
+
+;; --------------------------------------------------------------
+;; Bypass to Consumer
+;; --------------------------------------------------------------
+
+;; load->next use : 3 cycles (Default)
+;; load->load base: 4 cycles
+;; load->store base: 4 cycles
+(define_bypass 4 "r74k_int_load" "r74k_int_load")
+(define_bypass 4 "r74k_int_load" "r74k_int_store" "!store_data_bypass_p")
+
+;; logical/move/slt/signext->next use : 1 cycles (Default)
+;; logical/move/slt/signext->load base: 2 cycles
+;; logical/move/slt/signext->store base: 2 cycles
+(define_bypass 2 "r74k_int_logical" "r74k_int_load")
+(define_bypass 2 "r74k_int_logical" "r74k_int_store" "!store_data_bypass_p")
+
+;; arith->next use : 2 cycles (Default)
+;; arith->load base: 3 cycles
+;; arith->store base: 3 cycles
+(define_bypass 3 "r74k_int_arith" "r74k_int_load")
+(define_bypass 3 "r74k_int_arith" "r74k_int_store" "!store_data_bypass_p")
+
+;; cmove->next use : 4 cycles (Default)
+;; cmove->load base: 5 cycles
+;; cmove->store base: 5 cycles
+(define_bypass 5 "r74k_int_cmove" "r74k_int_load")
+(define_bypass 5 "r74k_int_cmove" "r74k_int_store" "!store_data_bypass_p")
+
+;; mult/madd/msub->int_mfhilo : 4 cycles (default)
+;; mult->madd/msub : 1 cycles
+;; madd/msub->madd/msub : 1 cycles
+(define_bypass 1 "r74k_int_mult,r74k_int_mul3" "r74k_int_madd"
+ "mips_linked_madd_p")
+(define_bypass 1 "r74k_int_madd" "r74k_int_madd"
+ "mips_linked_madd_p")
+
+;; --------------------------------------------------------------
+;; Floating Point Instructions
+;; --------------------------------------------------------------
+
+;; 74Kf FPU runs at 1:1 or 2:1 core/FPU clock ratio.
+
+;; fadd, fabs, fneg,
+(define_insn_reservation "r74kf1_1_fadd" 4
+ (and (eq_attr "cpu" "74kf1_1")
+ (eq_attr "type" "fadd,fabs,fneg"))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf2_1_fadd" 8
+ (and (eq_attr "cpu" "74kf2_1")
+ (eq_attr "type" "fadd,fabs,fneg"))
+ "r74k_fpu_arith*2")
+
+(define_insn_reservation "r74kf3_2_fadd" 6
+ (and (eq_attr "cpu" "74kf3_2")
+ (eq_attr "type" "fadd,fabs,fneg"))
+ "r74k_fpu_arith")
+
+;; fmove, fcmove
+(define_insn_reservation "r74kf1_1_fmove" 4
+ (and (eq_attr "cpu" "74kf1_1")
+ (eq_attr "type" "fmove"))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf2_1_fmove" 8
+ (and (eq_attr "cpu" "74kf2_1")
+ (eq_attr "type" "fmove"))
+ "r74k_fpu_arith*2")
+
+(define_insn_reservation "r74kf3_2_fmove" 6
+ (and (eq_attr "cpu" "74kf3_2")
+ (eq_attr "type" "fmove"))
+ "r74k_fpu_arith")
+
+;; fload
+(define_insn_reservation "r74kf1_1_fload" 4
+ (and (eq_attr "cpu" "74kf1_1")
+ (eq_attr "type" "fpload,fpidxload"))
+ "r74k_agen+r74k_fpu_ldst")
+
+(define_insn_reservation "r74kf2_1_fload" 8
+ (and (eq_attr "cpu" "74kf2_1")
+ (eq_attr "type" "fpload,fpidxload"))
+ "r74k_agen+(r74k_fpu_ldst*2)")
+
+(define_insn_reservation "r74kf3_2_fload" 6
+ (and (eq_attr "cpu" "74kf3_2")
+ (eq_attr "type" "fpload,fpidxload"))
+ "r74k_agen+r74k_fpu_ldst")
+
+;; fstore
+(define_insn_reservation "r74kf1_1_fstore" 1
+ (and (eq_attr "cpu" "74kf1_1")
+ (eq_attr "type" "fpstore,fpidxstore"))
+ "r74k_agen+r74k_fpu_ldst")
+
+(define_insn_reservation "r74kf2_1_fstore" 2
+ (and (eq_attr "cpu" "74kf2_1")
+ (eq_attr "type" "fpstore,fpidxstore"))
+ "r74k_agen+(r74k_fpu_ldst*2)")
+
+(define_insn_reservation "r74kf3_2_fstore" 1
+ (and (eq_attr "cpu" "74kf3_2")
+ (eq_attr "type" "fpstore,fpidxstore"))
+ "r74k_agen+r74k_fpu_ldst")
+
+;; fmul, fmadd
+(define_insn_reservation "r74kf1_1_fmul_sf" 4
+ (and (eq_attr "cpu" "74kf1_1")
+ (and (eq_attr "type" "fmul,fmadd")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf2_1_fmul_sf" 8
+ (and (eq_attr "cpu" "74kf2_1")
+ (and (eq_attr "type" "fmul,fmadd")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith*2")
+
+(define_insn_reservation "r74kf3_2_fmul_sf" 6
+ (and (eq_attr "cpu" "74kf3_2")
+ (and (eq_attr "type" "fmul,fmadd")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf1_1_fmul_df" 5
+ (and (eq_attr "cpu" "74kf1_1")
+ (and (eq_attr "type" "fmul,fmadd")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*2")
+
+(define_insn_reservation "r74kf2_1_fmul_df" 10
+ (and (eq_attr "cpu" "74kf2_1")
+ (and (eq_attr "type" "fmul,fmadd")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*4")
+
+(define_insn_reservation "r74kf3_2_fmul_df" 7
+ (and (eq_attr "cpu" "74kf3_2")
+ (and (eq_attr "type" "fmul,fmadd")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*2")
+
+;; fdiv, fsqrt
+(define_insn_reservation "r74kf1_1_fdiv_sf" 17
+ (and (eq_attr "cpu" "74kf1_1")
+ (and (eq_attr "type" "fdiv,fsqrt")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith*14")
+
+(define_insn_reservation "r74kf2_1_fdiv_sf" 34
+ (and (eq_attr "cpu" "74kf2_1")
+ (and (eq_attr "type" "fdiv,fsqrt")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith*28")
+
+(define_insn_reservation "r74kf3_2_fdiv_sf" 25
+ (and (eq_attr "cpu" "74kf3_2")
+ (and (eq_attr "type" "fdiv,fsqrt")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith*14")
+
+(define_insn_reservation "r74kf1_1_fdiv_df" 32
+ (and (eq_attr "cpu" "74kf1_1")
+ (and (eq_attr "type" "fdiv,fsqrt")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*29")
+
+(define_insn_reservation "r74kf2_1_fdiv_df" 64
+ (and (eq_attr "cpu" "74kf2_1")
+ (and (eq_attr "type" "fdiv,fsqrt")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*58")
+
+(define_insn_reservation "r74kf3_2_fdiv_df" 48
+ (and (eq_attr "cpu" "74kf3_2")
+ (and (eq_attr "type" "fdiv,fsqrt")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*29")
+
+;; frsqrt
+(define_insn_reservation "r74kf1_1_frsqrt_sf" 17
+ (and (eq_attr "cpu" "74kf1_1")
+ (and (eq_attr "type" "frsqrt")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith*14")
+
+(define_insn_reservation "r74kf2_1_frsqrt_sf" 34
+ (and (eq_attr "cpu" "74kf2_1")
+ (and (eq_attr "type" "frsqrt")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith*28")
+
+(define_insn_reservation "r74kf3_2_frsqrt_sf" 25
+ (and (eq_attr "cpu" "74kf3_2")
+ (and (eq_attr "type" "frsqrt")
+ (eq_attr "mode" "SF")))
+ "r74k_fpu_arith*14")
+
+(define_insn_reservation "r74kf1_1_frsqrt_df" 36
+ (and (eq_attr "cpu" "74kf1_1")
+ (and (eq_attr "type" "frsqrt")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*31")
+
+(define_insn_reservation "r74kf2_1_frsqrt_df" 72
+ (and (eq_attr "cpu" "74kf2_1")
+ (and (eq_attr "type" "frsqrt")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*62")
+
+(define_insn_reservation "r74kf3_2_frsqrt_df" 54
+ (and (eq_attr "cpu" "74kf3_2")
+ (and (eq_attr "type" "frsqrt")
+ (eq_attr "mode" "DF")))
+ "r74k_fpu_arith*31")
+
+;; fcmp
+(define_insn_reservation "r74kf1_1_fcmp" 4
+ (and (eq_attr "cpu" "74kf1_1")
+ (eq_attr "type" "fcmp"))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf2_1_fcmp" 8
+ (and (eq_attr "cpu" "74kf2_1")
+ (eq_attr "type" "fcmp"))
+ "r74k_fpu_arith*2")
+
+(define_insn_reservation "r74kf3_2_fcmp" 6
+ (and (eq_attr "cpu" "74kf3_2")
+ (eq_attr "type" "fcmp"))
+ "r74k_fpu_arith")
+
+;; fcvt
+(define_insn_reservation "r74kf1_1_fcvt" 4
+ (and (eq_attr "cpu" "74kf1_1")
+ (eq_attr "type" "fcvt"))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf2_1_fcvt" 8
+ (and (eq_attr "cpu" "74kf2_1")
+ (eq_attr "type" "fcvt"))
+ "r74k_fpu_arith*2")
+
+(define_insn_reservation "r74kf3_2_fcvt" 6
+ (and (eq_attr "cpu" "74kf3_2")
+ (eq_attr "type" "fcvt"))
+ "r74k_fpu_arith")
+
+;; fxfer (MTC1, DMTC1: latency is 4) (MFC1, DMFC1: latency is 1)
+(define_insn_reservation "r74kf1_1_fxfer_to_c1" 4
+ (and (eq_attr "cpu" "74kf1_1")
+ (eq_attr "type" "mtc"))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf2_1_fxfer_to_c1" 8
+ (and (eq_attr "cpu" "74kf2_1")
+ (eq_attr "type" "mtc"))
+ "r74k_fpu_arith*2")
+
+(define_insn_reservation "r74kf3_2_fxfer_to_c1" 6
+ (and (eq_attr "cpu" "74kf3_2")
+ (eq_attr "type" "mtc"))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf1_1_fxfer_from_c1" 1
+ (and (eq_attr "cpu" "74kf1_1")
+ (eq_attr "type" "mfc"))
+ "r74k_fpu_arith")
+
+(define_insn_reservation "r74kf2_1_fxfer_from_c1" 2
+ (and (eq_attr "cpu" "74kf2_1")
+ (eq_attr "type" "mfc"))
+ "r74k_fpu_arith*2")
+
+(define_insn_reservation "r74kf3_2_fxfer_from_c1" 1
+ (and (eq_attr "cpu" "74kf3_2")
+ (eq_attr "type" "mfc"))
+ "r74k_fpu_arith")
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