;; Machine description for Xilinx MicroBlaze synchronization instructions. ;; Copyright (C) 2011-2021 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_insn “atomic_compare_and_swapsi” [(match_operand:SI 0 “register_operand” “=&d”) ;; bool output (match_operand:SI 1 “register_operand” “=&d”) ;; val output (match_operand:SI 2 “nonimmediate_operand” “+Q”) ;; memory (match_operand:SI 3 “register_operand” “d”) ;; expected value (match_operand:SI 4 “register_operand” “d”) ;; desired value (match_operand:SI 5 “const_int_operand” "") ;; is_weak (match_operand:SI 6 “const_int_operand” "") ;; mod_s (match_operand:SI 7 “const_int_operand” "") ;; mod_f (clobber (match_scratch:SI 8 “=&d”))] "" { output_asm_insn (“addc \tr0,r0,r0”, operands); output_asm_insn (“lwx \t%1,%y2,r0”, operands); output_asm_insn (“addic\t%8,r0,0”, operands); output_asm_insn (“bnei \t%8,.-8”, operands); output_asm_insn (“cmp \t%0,%1,%3”, operands); output_asm_insn (“bnei \t%0,.+16”, operands); output_asm_insn (“swx \t%4,%y2,r0”, operands); output_asm_insn (“addic\t%8,r0,0”, operands); output_asm_insn (“bnei \t%8,.-28”, operands); return ""; } )