44 lines
1.8 KiB
Markdown
44 lines
1.8 KiB
Markdown
;; Machine description for Xilinx MicroBlaze synchronization instructions.
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;; Copyright (C) 2011-2021 Free Software Foundation, Inc.
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;;
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;; This file is part of GCC.
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;;
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;; GCC is free software; you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published
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;; by the Free Software Foundation; either version 3, or (at your
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;; option) any later version.
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;;
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;; GCC is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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;; License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with GCC; see the file COPYING3. If not see
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;; <http://www.gnu.org/licenses/>.
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(define_insn "atomic_compare_and_swapsi"
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[(match_operand:SI 0 "register_operand" "=&d") ;; bool output
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(match_operand:SI 1 "register_operand" "=&d") ;; val output
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(match_operand:SI 2 "nonimmediate_operand" "+Q") ;; memory
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(match_operand:SI 3 "register_operand" "d") ;; expected value
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(match_operand:SI 4 "register_operand" "d") ;; desired value
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(match_operand:SI 5 "const_int_operand" "") ;; is_weak
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(match_operand:SI 6 "const_int_operand" "") ;; mod_s
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(match_operand:SI 7 "const_int_operand" "") ;; mod_f
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(clobber (match_scratch:SI 8 "=&d"))]
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""
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{
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output_asm_insn ("addc \tr0,r0,r0", operands);
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output_asm_insn ("lwx \t%1,%y2,r0", operands);
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output_asm_insn ("addic\t%8,r0,0", operands);
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output_asm_insn ("bnei \t%8,.-8", operands);
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output_asm_insn ("cmp \t%0,%1,%3", operands);
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output_asm_insn ("bnei \t%0,.+16", operands);
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output_asm_insn ("swx \t%4,%y2,r0", operands);
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output_asm_insn ("addic\t%8,r0,0", operands);
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output_asm_insn ("bnei \t%8,.-28", operands);
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return "";
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}
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)
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