mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
727772e7af
This patch adds handling for DBG_VALUE_LIST in the MIR-passes (after finalize-isel), excluding the debug liveness passes and DWARF emission. This most significantly affects MachineSink, which now needs to consider all used registers of a debug value when sinking, but for most passes this change is simply replacing getDebugOperand(0) with an iteration over all debug operands. Differential Revision: https://reviews.llvm.org/D92578
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
//===-- WebAssemblyDebugValueManager.cpp - WebAssembly DebugValue Manager -===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
///
|
|
/// \file
|
|
/// This file implements the manager for MachineInstr DebugValues.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "WebAssemblyDebugValueManager.h"
|
|
#include "WebAssembly.h"
|
|
#include "WebAssemblyMachineFunctionInfo.h"
|
|
#include "llvm/CodeGen/MachineInstr.h"
|
|
|
|
using namespace llvm;
|
|
|
|
WebAssemblyDebugValueManager::WebAssemblyDebugValueManager(
|
|
MachineInstr *Instr) {
|
|
// This code differs from MachineInstr::collectDebugValues in that it scans
|
|
// the whole BB, not just contiguous DBG_VALUEs.
|
|
if (!Instr->getOperand(0).isReg())
|
|
return;
|
|
CurrentReg = Instr->getOperand(0).getReg();
|
|
|
|
MachineBasicBlock::iterator DI = *Instr;
|
|
++DI;
|
|
for (MachineBasicBlock::iterator DE = Instr->getParent()->end(); DI != DE;
|
|
++DI) {
|
|
if (DI->isDebugValue() &&
|
|
DI->hasDebugOperandForReg(Instr->getOperand(0).getReg()))
|
|
DbgValues.push_back(&*DI);
|
|
}
|
|
}
|
|
|
|
void WebAssemblyDebugValueManager::move(MachineInstr *Insert) {
|
|
MachineBasicBlock *MBB = Insert->getParent();
|
|
for (MachineInstr *DBI : reverse(DbgValues))
|
|
MBB->splice(Insert, DBI->getParent(), DBI);
|
|
}
|
|
|
|
void WebAssemblyDebugValueManager::updateReg(unsigned Reg) {
|
|
for (auto *DBI : DbgValues)
|
|
for (auto &MO : DBI->getDebugOperandsForReg(CurrentReg))
|
|
MO.setReg(Reg);
|
|
CurrentReg = Reg;
|
|
}
|
|
|
|
void WebAssemblyDebugValueManager::clone(MachineInstr *Insert,
|
|
unsigned NewReg) {
|
|
MachineBasicBlock *MBB = Insert->getParent();
|
|
MachineFunction *MF = MBB->getParent();
|
|
for (MachineInstr *DBI : reverse(DbgValues)) {
|
|
MachineInstr *Clone = MF->CloneMachineInstr(DBI);
|
|
for (auto &MO : Clone->getDebugOperandsForReg(CurrentReg))
|
|
MO.setReg(NewReg);
|
|
MBB->insert(Insert, Clone);
|
|
}
|
|
}
|
|
|
|
void WebAssemblyDebugValueManager::replaceWithLocal(unsigned LocalId) {
|
|
for (auto *DBI : DbgValues) {
|
|
auto IndexType = DBI->isIndirectDebugValue()
|
|
? llvm::WebAssembly::TI_LOCAL_INDIRECT
|
|
: llvm::WebAssembly::TI_LOCAL;
|
|
for (auto &MO : DBI->getDebugOperandsForReg(CurrentReg))
|
|
MO.ChangeToTargetIndex(IndexType, LocalId);
|
|
}
|
|
}
|