diff gcc/config/aarch64/thunderx.md @ 111:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 84e7813d76e9
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/aarch64/thunderx.md	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,366 @@
+;; Cavium ThunderX pipeline description
+;; Copyright (C) 2014-2017 Free Software Foundation, Inc.
+;;
+;; Written by Andrew Pinski  <apinski@cavium.com>
+
+;; 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/>.
+
+
+;; Thunder is a dual-issue processor that can issue all instructions on
+;; pipe0 and a subset on pipe1.
+
+
+(define_automaton "thunderx_main, thunderx_mult, thunderx_divide, thunderx_simd")
+
+(define_cpu_unit "thunderx_pipe0" "thunderx_main")
+(define_cpu_unit "thunderx_pipe1" "thunderx_main")
+(define_cpu_unit "thunderx_mult" "thunderx_mult")
+(define_cpu_unit "thunderx_divide" "thunderx_divide")
+(define_cpu_unit "thunderx_simd" "thunderx_simd")
+
+(define_insn_reservation "thunderx_add" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "adc_imm,adc_reg,adr,alu_imm,alu_sreg,alus_imm,alus_sreg,extend,logic_imm,logic_reg,logics_imm,logics_reg,mov_imm,mov_reg"))
+  "thunderx_pipe0 | thunderx_pipe1")
+
+(define_insn_reservation "thunderx_shift" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "bfm,bfx,extend,rotate_imm,shift_imm,shift_reg,rbit,rev"))
+  "thunderx_pipe0 | thunderx_pipe1")
+
+
+;; Arthimentic instructions with an extra shift or extend is two cycles.
+;; FIXME: This needs more attributes on aarch64 than what is currently there;
+;;    this is conserative for now.
+;; Except this is not correct as this is only for !(LSL && shift by 0/1/2/3)
+;; Except this is not correct as this is only for !(zero extend)
+
+(define_insn_reservation "thunderx_arith_shift" 2
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "alu_ext,alu_shift_imm,alu_shift_reg,alus_ext,logic_shift_imm,logic_shift_reg,logics_shift_imm,logics_shift_reg,alus_shift_imm"))
+  "thunderx_pipe0 | thunderx_pipe1")
+
+(define_insn_reservation "thunderx_csel" 2
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "csel"))
+  "thunderx_pipe0 | thunderx_pipe1")
+
+;; Multiply and mulitply accumulate and count leading zeros can only happen on pipe 1
+
+(define_insn_reservation "thunderx_mul" 4
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "mul,muls,mla,mlas,clz,smull,umull,smlal,umlal"))
+  "thunderx_pipe1 + thunderx_mult")
+
+;; crcb,crch,crcw is 4 cycles and can only happen on pipe 1
+
+(define_insn_reservation "thunderx_crc32" 4
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "crc"))
+  "thunderx_pipe1 + thunderx_mult")
+
+;; crcx is 5 cycles and only happen on pipe 1
+;(define_insn_reservation "thunderx_crc64" 5
+;  (and (eq_attr "tune" "thunderx")
+;       (eq_attr "type" "crc")
+;       (eq_attr "mode" "DI"))
+;  "thunderx_pipe1 + thunderx_mult")
+
+(define_insn_reservation "thunderx_div32" 22
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "udiv,sdiv"))
+  "thunderx_pipe1 + thunderx_divide, thunderx_divide * 21")
+
+;(define_insn_reservation "thunderx_div64" 38
+;  (and (eq_attr "tune" "thunderx")
+;       (eq_attr "type" "udiv,sdiv")
+;       (eq_attr "mode" "DI"))
+;  "thunderx_pipe1 + thunderx_divide, thunderx_divide * 34")
+
+;; Stores take one cycle in pipe 0
+(define_insn_reservation "thunderx_store" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "store_4"))
+  "thunderx_pipe0")
+
+;; Store pair are single issued
+(define_insn_reservation "thunderx_storepair" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "store_8,store_16"))
+  "thunderx_pipe0 + thunderx_pipe1")
+
+;; Prefetch are single issued
+;(define_insn_reservation "thunderx_prefetch" 1
+;  (and (eq_attr "tune" "thunderx")
+;       (eq_attr "type" "prefetch"))
+;  "thunderx_pipe0 + thunderx_pipe1")
+
+;; loads (and load pairs) from L1 take 3 cycles in pipe 0
+(define_insn_reservation "thunderx_load" 3
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "load_4, load_8, load_16"))
+  "thunderx_pipe0")
+
+(define_insn_reservation "thunderx_brj" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "branch,trap,call"))
+  "thunderx_pipe1")
+
+;; FPU
+
+(define_insn_reservation "thunderx_fadd" 4
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "faddd,fadds"))
+  "thunderx_pipe1")
+
+(define_insn_reservation "thunderx_fconst" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fconsts,fconstd"))
+  "thunderx_pipe1")
+
+;; Moves between fp are 2 cycles including min/max
+(define_insn_reservation "thunderx_fmov" 2
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fmov,f_minmaxs,f_minmaxd"))
+  "thunderx_pipe1")
+
+;; ABS, and NEG are 1 cycle
+(define_insn_reservation "thunderx_fabs" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "ffariths,ffarithd"))
+  "thunderx_pipe1")
+
+(define_insn_reservation "thunderx_fcsel" 3
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fcsel"))
+  "thunderx_pipe1")
+
+(define_insn_reservation "thunderx_fmovgpr" 2
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "f_mrc, f_mcr"))
+  "thunderx_pipe1")
+
+(define_insn_reservation "thunderx_fcmp" 3
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fcmps,fcmpd,fccmps,fccmpd"))
+  "thunderx_pipe1")
+
+(define_insn_reservation "thunderx_fmul" 6
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fmacs,fmacd,fmuls,fmuld"))
+  "thunderx_pipe1")
+
+(define_insn_reservation "thunderx_fdivs" 12
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fdivs"))
+  "thunderx_pipe1 + thunderx_divide, thunderx_divide*8")
+
+(define_insn_reservation "thunderx_fdivd" 22
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fdivd"))
+  "thunderx_pipe1 + thunderx_divide, thunderx_divide*18")
+
+(define_insn_reservation "thunderx_fsqrts" 17
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fsqrts"))
+  "thunderx_pipe1 + thunderx_divide, thunderx_divide*13")
+
+(define_insn_reservation "thunderx_fsqrtd" 31
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "fsqrtd"))
+  "thunderx_pipe1 + thunderx_divide, thunderx_divide*27")
+
+;; The rounding conversion inside fp is 4 cycles
+(define_insn_reservation "thunderx_frint" 4
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "f_cvt,f_rints,f_rintd"))
+  "thunderx_pipe1")
+
+;; Float to integer with a move from int to/from float is 6 cycles
+(define_insn_reservation "thunderx_f_cvt" 6
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "f_cvtf2i,f_cvti2f"))
+  "thunderx_pipe1")
+
+;; FP/SIMD load/stores happen in pipe 0
+;; 64bit Loads register/pairs are 4 cycles from L1
+(define_insn_reservation "thunderx_64simd_fp_load" 4
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "f_loadd,f_loads,neon_load1_1reg,\
+			neon_load1_1reg_q,neon_load1_2reg"))
+  "thunderx_pipe0")
+
+;; 128bit load pair is singled issue and 4 cycles from L1
+(define_insn_reservation "thunderx_128simd_pair_load" 4
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_load1_2reg_q"))
+  "thunderx_pipe0+thunderx_pipe1")
+
+;; FP/SIMD Stores takes one cycle in pipe 0
+;; ST1 with one registers either multiple structures or single structure is
+;;    also one cycle.
+(define_insn_reservation "thunderx_simd_fp_store" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "f_stored,f_stores,neon_store1_1reg,neon_store1_1reg_q, \
+			neon_store1_one_lane, neon_store1_one_lane_q"))
+  "thunderx_pipe0")
+
+;; 64bit neon store pairs are single issue for one cycle
+(define_insn_reservation "thunderx_64neon_storepair" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_store1_2reg"))
+  "thunderx_pipe0 + thunderx_pipe1")
+
+;; 128bit neon store pair are single issued for two cycles
+(define_insn_reservation "thunderx_128neon_storepair" 2
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_store1_2reg_q"))
+  "(thunderx_pipe0 + thunderx_pipe1)*2")
+
+;; LD1R/LD1 (with a single struct) takes 6 cycles and issued in pipe0
+(define_insn_reservation "thunderx_neon_ld1" 6
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_load1_all_lanes"))
+  "thunderx_pipe0")
+
+;; SIMD/NEON (q forms take an extra cycle)
+;; SIMD For ThunderX is 64bit wide,
+
+;; ThunderX simd move instruction types - 2/3 cycles
+;; ThunderX dup, ins is the same
+;; ThunderX SIMD fabs/fneg instruction types
+(define_insn_reservation "thunderx_neon_move" 2
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_logic, neon_bsl, neon_fp_compare_s, \
+			neon_fp_compare_d, neon_move, neon_dup, \
+			neon_ins, neon_from_gp, neon_to_gp, \
+			neon_abs, neon_neg, \
+			neon_fp_neg_s, neon_fp_abs_s"))
+  "thunderx_pipe1 + thunderx_simd")
+
+(define_insn_reservation "thunderx_neon_move_q" 3
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_logic_q, neon_bsl_q, neon_fp_compare_s_q, \
+			neon_fp_compare_d_q, neon_move_q, neon_dup_q, \
+			neon_ins_q, neon_from_gp_q, neon_to_gp_q, \
+			neon_abs_q, neon_neg_q, \
+			neon_fp_neg_s_q, neon_fp_neg_d_q, \
+			neon_fp_abs_s_q, neon_fp_abs_d_q"))
+  "thunderx_pipe1 + thunderx_simd, thunderx_simd")
+
+;; ThunderX simd simple/add instruction types - 4/5 cycles
+
+(define_insn_reservation "thunderx_neon_add" 4
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_reduc_add, neon_reduc_minmax, neon_fp_reduc_add_s, \
+			neon_fp_reduc_add_d, neon_fp_to_int_s, neon_fp_to_int_d, \
+			neon_add_halve, neon_sub_halve, neon_qadd, neon_compare, \
+			neon_compare_zero, neon_minmax, neon_abd, neon_add, neon_sub, \
+			neon_fp_minmax_s, neon_fp_minmax_d, neon_reduc_add, neon_cls, \
+			neon_qabs, neon_qneg, neon_fp_addsub_s, neon_fp_addsub_d, \
+			neon_arith_acc, neon_rev, neon_fp_abd_s, neon_fp_abd_d, \
+			neon_fp_reduc_minmax_s"))
+  "thunderx_pipe1 + thunderx_simd")
+
+;; BIG NOTE: neon_add_long/neon_sub_long don't have a q form which is incorrect
+
+(define_insn_reservation "thunderx_neon_add_q" 5
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_reduc_add_q, neon_reduc_minmax_q, neon_fp_reduc_add_s_q, \
+			neon_fp_reduc_add_d_q, neon_fp_to_int_s_q, neon_fp_to_int_d_q, \
+			neon_add_halve_q, neon_sub_halve_q, neon_qadd_q, neon_compare_q, \
+			neon_compare_zero_q, neon_minmax_q, neon_abd_q, neon_add_q, neon_sub_q, \
+			neon_fp_minmax_s_q, neon_fp_minmax_d_q, neon_reduc_add_q, neon_cls_q, \
+			neon_qabs_q, neon_qneg_q, neon_fp_addsub_s_q, neon_fp_addsub_d_q, \
+			neon_add_long, neon_sub_long, neon_fp_abd_s_q, neon_fp_abd_d_q, \
+			neon_arith_acc_q, neon_rev_q, \
+			neon_fp_reduc_minmax_s_q, neon_fp_reduc_minmax_d_q"))
+  "thunderx_pipe1 + thunderx_simd, thunderx_simd")
+
+;; Multiplies (float and integer) and shifts and permutes (except for TBL) and float conversions
+;; are 6/7 cycles
+(define_insn_reservation "thunderx_neon_mult" 6
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_fp_mul_s, neon_fp_mul_d, neon_fp_mla_s, neon_fp_mla_d, \
+			neon_mla_b, neon_mla_h, neon_mla_s, \
+			neon_mla_h_scalar, neon_mla_s_scalar, \
+			neon_ext, neon_shift_imm, neon_permute, \
+			neon_int_to_fp_s, neon_int_to_fp_d, neon_shift_reg, \
+			neon_sat_shift_reg, neon_shift_acc, \
+			neon_mul_b, neon_mul_h, neon_mul_s, \
+			neon_mul_h_scalar, neon_mul_s_scalar, \
+			neon_fp_mul_s_scalar, \
+			neon_fp_mla_s_scalar"))
+  "thunderx_pipe1 + thunderx_simd")
+
+(define_insn_reservation "thunderx_neon_mult_q" 7
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_fp_mul_s_q, neon_fp_mul_d_q, neon_fp_mla_s_q, neon_fp_mla_d_q, \
+			neon_mla_b_q, neon_mla_h_q, neon_mla_s_q, \
+			neon_mla_h_scalar_q, neon_mla_s_scalar_q, \
+			neon_ext_q, neon_shift_imm_q, neon_permute_q, \
+			neon_int_to_fp_s_q, neon_int_to_fp_d_q, neon_shift_reg_q, \
+			neon_sat_shift_reg_q, neon_shift_acc_q, \
+			neon_shift_imm_long, \
+			neon_mul_b_q, neon_mul_h_q, neon_mul_s_q, \
+			neon_mul_h_scalar_q, neon_mul_s_scalar_q, \
+			neon_fp_mul_s_scalar_q, neon_fp_mul_d_scalar_q, \
+			neon_mul_b_long, neon_mul_h_long, neon_mul_s_long, \
+			neon_shift_imm_narrow_q, neon_fp_cvt_widen_s, neon_fp_cvt_narrow_d_q, \
+			neon_fp_mla_s_scalar_q, neon_fp_mla_d_scalar_q"))
+  "thunderx_pipe1 + thunderx_simd, thunderx_simd")
+
+
+;; AES[ED] is 5 cycles
+(define_insn_reservation "thunderx_crypto_aese" 5
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "crypto_aese"))
+  "thunderx_pipe1 + thunderx_simd, thunderx_simd")
+
+;; AES{,I}MC is 3 cycles
+(define_insn_reservation "thunderx_crypto_aesmc" 3
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "crypto_aesmc"))
+  "thunderx_pipe1 + thunderx_simd, thunderx_simd")
+
+
+;; Thunder 128bit SIMD reads the upper halve in cycle 2 and writes upper halve in the last cycle
+(define_bypass 2 "thunderx_neon_move_q" "thunderx_neon_move_q, thunderx_neon_add_q, thunderx_neon_mult_q")
+(define_bypass 4 "thunderx_neon_add_q" "thunderx_neon_move_q, thunderx_neon_add_q, thunderx_neon_mult_q")
+(define_bypass 6 "thunderx_neon_mult_q" "thunderx_neon_move_q, thunderx_neon_add_q, thunderx_neon_mult_q")
+
+;; 64bit TBL is emulated and takes 160 cycles
+(define_insn_reservation "thunderx_tbl" 160
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_tbl1"))
+  "(thunderx_pipe1+thunderx_pipe0)*160")
+
+;; 128bit TBL is emulated and takes 320 cycles
+(define_insn_reservation "thunderx_tblq" 320
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "neon_tbl1_q"))
+  "(thunderx_pipe1+thunderx_pipe0)*320")
+
+;; Assume both pipes are needed for unknown and multiple-instruction
+;; patterns.
+
+(define_insn_reservation "thunderx_unknown" 1
+  (and (eq_attr "tune" "thunderx")
+       (eq_attr "type" "untyped,multiple"))
+  "thunderx_pipe0 + thunderx_pipe1")
+
+