| // 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/base" | |
| "cmd/compile/internal/objw" | |
| "cmd/compile/internal/types" | |
| "cmd/internal/obj" | |
| "cmd/internal/obj/riscv" | |
| ) | |
| func zeroRange(pp *objw.Progs, p *obj.Prog, off, cnt int64, _ *uint32) *obj.Prog { | |
| if cnt%int64(types.PtrSize) != 0 { | |
| panic("zeroed region not aligned") | |
| } | |
| // Adjust the frame to account for LR. | |
| off += base.Ctxt.Arch.FixedFrameSize | |
| for cnt != 0 { | |
| p = pp.Append(p, riscv.AMOV, obj.TYPE_REG, riscv.REG_ZERO, 0, obj.TYPE_MEM, riscv.REG_SP, off) | |
| cnt -= int64(types.PtrSize) | |
| off += int64(types.PtrSize) | |
| } | |
| return p | |
| } | |