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riscv64.go
// Copyright 2020 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file encapsulates some of the odd characteristics of the RISCV64 // instruction set, to minimize its interaction with the core of the // assembler. package arch import ( "cmd/internal/obj" "cmd/internal/obj/riscv" ) // IsRISCV64AMO reports whether the op (as defined by a riscv.A* // constant) is one of the AMO instructions that requires special // handling. func IsRISCV64AMO(op obj.As) bool { switch op { case riscv.ASCW, riscv.ASCD, riscv.AAMOSWAPW, riscv.AAMOSWAPD, riscv.AAMOADDW, riscv.AAMOADDD, riscv.AAMOANDW, riscv.AAMOANDD, riscv.AAMOORW, riscv.AAMOORD, riscv.AAMOXORW, riscv.AAMOXORD, riscv.AAMOMINW, riscv.AAMOMIND, riscv.AAMOMINUW, riscv.AAMOMINUD, riscv.AAMOMAXW, riscv.AAMOMAXD, riscv.AAMOMAXUW, riscv.AAMOMAXUD: return true } return false }
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