;; GCC machine description for Blackfin synchronization instructions. ;; Copyright (C) 2005-2015 Free Software Foundation, Inc. ;; Contributed by Analog Devices. ;; ;; 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_code_iterator FETCHOP [plus minus ior and xor]) (define_code_attr fetchop_name [(plus “add”) (minus “sub”) (ior “ior”) (and “and”) (xor “xor”)]) (define_code_attr fetchop_addr [(plus “1072”) (minus “1088”) (ior “1104”) (and “1120”) (xor “1136”)])
(define_insn “sync_<fetchop_name>si_internal” [(set (mem:SI (match_operand:SI 0 “register_operand” “qA”)) (unspec:SI [(FETCHOP:SI (mem:SI (match_dup 0)) (match_operand:SI 1 “register_operand” “q0”)) (match_operand:SI 2 “register_no_elim_operand” “a”)] UNSPEC_ATOMIC)) (clobber (match_scratch:SI 3 “=q0”)) (clobber (match_scratch:SI 4 “=q1”)) (clobber (reg:SI REG_RETS))] “TARGET_SUPPORTS_SYNC_CALLS” “call (%2);” [(set_attr “type” “call”)])
(define_expand “sync_<fetchop_name>si” [(parallel [(set (match_operand:SI 0 “memory_operand” “+m”) (unspec:SI [(FETCHOP:SI (match_dup 0) (match_operand:SI 1 “register_operand” “q0”)) (match_dup 2)] UNSPEC_ATOMIC)) (clobber (match_scratch:SI 3 "")) (clobber (match_scratch:SI 4 "")) (clobber (reg:SI REG_RETS))])] “TARGET_SUPPORTS_SYNC_CALLS” { if (!REG_P (XEXP (operands[0], 0))) { operands[0] = shallow_copy_rtx (operands[0]); XEXP (operands[0], 0) = force_reg (Pmode, XEXP (operands[0], 0)); } operands[2] = force_reg (Pmode, GEN_INT (<fetchop_addr>)); })
(define_insn “sync_old_<fetchop_name>si_internal” [(set (match_operand:SI 0 “register_operand” “=q1”) (mem:SI (match_operand:SI 1 “register_operand” “qA”))) (set (mem:SI (match_dup 1)) (unspec:SI [(FETCHOP:SI (mem:SI (match_dup 1)) (match_operand:SI 2 “register_operand” “q0”)) (match_operand:SI 3 “register_no_elim_operand” “a”)] UNSPEC_ATOMIC)) (clobber (match_scratch:SI 4 “=q0”)) (clobber (reg:SI REG_RETS))] “TARGET_SUPPORTS_SYNC_CALLS” “call (%3);” [(set_attr “type” “call”)])
(define_expand “sync_old_<fetchop_name>si” [(parallel [(set (match_operand:SI 0 “register_operand” "") (match_operand:SI 1 “memory_operand” "")) (set (match_dup 1) (unspec:SI [(FETCHOP:SI (match_dup 1) (match_operand:SI 2 “register_operand” "")) (match_dup 3)] UNSPEC_ATOMIC)) (clobber (match_scratch:SI 4 "")) (clobber (reg:SI REG_RETS))])] “TARGET_SUPPORTS_SYNC_CALLS” { if (!REG_P (XEXP (operands[1], 0))) { operands[1] = shallow_copy_rtx (operands[1]); XEXP (operands[1], 0) = force_reg (Pmode, XEXP (operands[1], 0)); } operands[3] = force_reg (Pmode, GEN_INT (<fetchop_addr>)); })
(define_insn “sync_new_<fetchop_name>si_internal” [(set (match_operand:SI 0 “register_operand” “=q0”) (unspec:SI [(FETCHOP:SI (mem:SI (match_operand:SI 1 “register_operand” “qA”)) (match_operand:SI 2 “register_operand” “q0”)) (match_operand:SI 3 “register_no_elim_operand” “a”)] UNSPEC_ATOMIC)) (set (mem:SI (match_dup 1)) (unspec:SI [(FETCHOP:SI (mem:SI (match_dup 1)) (match_dup 2)) (match_dup 3)] UNSPEC_ATOMIC)) (clobber (match_scratch:SI 4 “=q1”)) (clobber (reg:SI REG_RETS))] “TARGET_SUPPORTS_SYNC_CALLS” “call (%3);” [(set_attr “type” “call”)])
(define_expand “sync_new_<fetchop_name>si” [(parallel [(set (match_operand:SI 0 “register_operand” "") (unspec:SI [(FETCHOP:SI (match_operand:SI 1 “memory_operand” "") (match_operand:SI 2 “register_operand” "")) (match_dup 3)] UNSPEC_ATOMIC)) (set (match_dup 1) (unspec:SI [(FETCHOP:SI (match_dup 1) (match_dup 2)) (match_dup 3)] UNSPEC_ATOMIC)) (clobber (match_scratch:SI 4 "")) (clobber (reg:SI REG_RETS))])] “TARGET_SUPPORTS_SYNC_CALLS” { if (!REG_P (XEXP (operands[1], 0))) { operands[1] = shallow_copy_rtx (operands[1]); XEXP (operands[1], 0) = force_reg (Pmode, XEXP (operands[1], 0)); } operands[3] = force_reg (Pmode, GEN_INT (<fetchop_addr>)); })
(define_insn “sync_compare_and_swapsi_internal” [(set (match_operand:SI 0 “register_operand” “=q0”) (mem:SI (match_operand:SI 1 “register_operand” “qA”))) (set (mem:SI (match_dup 1)) (unspec:SI [(mem:SI (match_dup 1)) (match_operand:SI 2 “register_operand” “q1”) (match_operand:SI 3 “register_operand” “q2”) (match_operand:SI 4 “register_no_elim_operand” “a”)] UNSPEC_ATOMIC)) (clobber (reg:SI REG_RETS))] “TARGET_SUPPORTS_SYNC_CALLS” “call (%4);” [(set_attr “type” “call”)])
(define_expand “sync_compare_and_swapsi” [(parallel [(set (match_operand:SI 0 “register_operand” "") (match_operand:SI 1 “memory_operand” "")) (set (match_dup 1) (unspec:SI [(match_dup 1) (match_operand:SI 2 “register_operand” "") (match_operand:SI 3 “register_operand” "") (match_dup 4)] UNSPEC_ATOMIC)) (clobber (reg:SI REG_RETS))])] “TARGET_SUPPORTS_SYNC_CALLS” { if (!REG_P (XEXP (operands[1], 0))) { operands[1] = shallow_copy_rtx (operands[1]); XEXP (operands[1], 0) = force_reg (Pmode, XEXP (operands[1], 0)); } operands[4] = force_reg (Pmode, GEN_INT (0x420)); })