golang gsubr 代码
文件路径：/src/cmd/compile/internal/riscv64/gsubr.go
// Copyright 2016 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.
package riscv64
import (
"cmd/compile/internal/objw"
"cmd/internal/obj"
"cmd/internal/obj/riscv"
)
func ginsnop(pp *objw.Progs) *obj.Prog {
// Hardware nop is ADD $0, ZERO
p := pp.Prog(riscv.AADD)
p.From.Type = obj.TYPE_CONST
p.Reg = riscv.REG_ZERO
p.To = obj.Addr{Type: obj.TYPE_REG, Reg: riscv.REG_ZERO}
return p
}