WebAssemblyDebugValueManager.cpp revision 355940 
1//===-- WebAssemblyDebugValueManager.cpp - WebAssembly DebugValue Manager -===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8///
9/// \file
10/// This file implements the manager for MachineInstr DebugValues.
11///
12//===----------------------------------------------------------------------===//
13
14#include "WebAssemblyDebugValueManager.h"
15#include "WebAssemblyMachineFunctionInfo.h"
16#include "llvm/CodeGen/MachineInstr.h"
17
18using namespace llvm;
19
20WebAssemblyDebugValueManager::WebAssemblyDebugValueManager(
21    MachineInstr *Instr) {
22  Instr->collectDebugValues(DbgValues);
23}
24
25void WebAssemblyDebugValueManager::move(MachineInstr *Insert) {
26  MachineBasicBlock *MBB = Insert->getParent();
27  for (MachineInstr *DBI : reverse(DbgValues))
28    MBB->splice(Insert, DBI->getParent(), DBI);
29}
30
31void WebAssemblyDebugValueManager::updateReg(unsigned Reg) {
32  for (auto *DBI : DbgValues)
33    DBI->getOperand(0).setReg(Reg);
34}
35
36void WebAssemblyDebugValueManager::clone(MachineInstr *Insert,
37                                         unsigned NewReg) {
38  MachineBasicBlock *MBB = Insert->getParent();
39  MachineFunction *MF = MBB->getParent();
40  for (MachineInstr *DBI : reverse(DbgValues)) {
41    MachineInstr *Clone = MF->CloneMachineInstr(DBI);
42    Clone->getOperand(0).setReg(NewReg);
43    MBB->insert(Insert, Clone);
44  }
45}
46