WebAssemblyDebugValueManager.cpp revision 343210 
1//===-- WebAssemblyDebugValueManager.cpp - WebAssembly DebugValue Manager -===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9///
10/// \file
11/// This file implements the manager for MachineInstr DebugValues.
12///
13//===----------------------------------------------------------------------===//
14
15#include "WebAssemblyDebugValueManager.h"
16#include "WebAssemblyMachineFunctionInfo.h"
17#include "llvm/CodeGen/MachineInstr.h"
18
19using namespace llvm;
20
21WebAssemblyDebugValueManager::WebAssemblyDebugValueManager(
22    MachineInstr *Instr) {
23  Instr->collectDebugValues(DbgValues);
24}
25
26void WebAssemblyDebugValueManager::move(MachineInstr *Insert) {
27  MachineBasicBlock *MBB = Insert->getParent();
28  for (MachineInstr *DBI : reverse(DbgValues))
29    MBB->splice(Insert, DBI->getParent(), DBI);
30}
31
32void WebAssemblyDebugValueManager::updateReg(unsigned Reg) {
33  for (auto *DBI : DbgValues)
34    DBI->getOperand(0).setReg(Reg);
35}
36
37void WebAssemblyDebugValueManager::clone(MachineInstr *Insert,
38                                         unsigned NewReg) {
39  MachineBasicBlock *MBB = Insert->getParent();
40  MachineFunction *MF = MBB->getParent();
41  for (MachineInstr *DBI : reverse(DbgValues)) {
42    MachineInstr *Clone = MF->CloneMachineInstr(DBI);
43    Clone->getOperand(0).setReg(NewReg);
44    MBB->insert(Insert, Clone);
45  }
46}
47