lib/Target/WebAssembly/WebAssemblyDebugValueManager.cpp

   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
  18 using namespace llvm;
  19
  20 WebAssemblyDebugValueManager::WebAssemblyDebugValueManager(
  21     MachineInstr *Instr) {
  22   Instr->collectDebugValues(DbgValues);
  23 }
  24
  25 void WebAssemblyDebugValueManager::move(MachineInstr *Insert) {
  26   MachineBasicBlock *MBB = Insert->getParent();
  27   for (MachineInstr *DBI : reverse(DbgValues))
  28     MBB->splice(Insert, DBI->getParent(), DBI);
  29 }
  30
  31 void WebAssemblyDebugValueManager::updateReg(unsigned Reg) {
  32   for (auto *DBI : DbgValues)
  33     DBI->getOperand(0).setReg(Reg);
  34 }
  35
  36 void 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 }