llvm/llvm/lib/Target/AMDGPU/SILateBranchLowering.cpp

//===-- SILateBranchLowering.cpp - Final preparation of branches ----------===//
//
// 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 pass mainly lowers early terminate pseudo instructions.
//
//===----------------------------------------------------------------------===//

#include "AMDGPU.h"
#include "GCNSubtarget.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "SIMachineFunctionInfo.h"
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/InitializePasses.h"

usingnamespacellvm;

#define DEBUG_TYPE …

namespace {

class SILateBranchLowering : public MachineFunctionPass { … };

} // end anonymous namespace

char SILateBranchLowering::ID = …;

INITIALIZE_PASS_BEGIN(SILateBranchLowering, DEBUG_TYPE,
                      "SI insert s_cbranch_execz instructions", false, false)
INITIALIZE_PASS_DEPENDENCY(MachineDominatorTreeWrapperPass)
INITIALIZE_PASS_END(SILateBranchLowering, DEBUG_TYPE,
                    "SI insert s_cbranch_execz instructions", false, false)

char &llvm::SILateBranchLoweringPassID = …;

static void generateEndPgm(MachineBasicBlock &MBB,
                           MachineBasicBlock::iterator I, DebugLoc DL,
                           const SIInstrInfo *TII, MachineFunction &MF) { … }

static void splitBlock(MachineBasicBlock &MBB, MachineInstr &MI,
                       MachineDominatorTree *MDT) { … }

void SILateBranchLowering::expandChainCall(MachineInstr &MI) { … }

void SILateBranchLowering::earlyTerm(MachineInstr &MI,
                                     MachineBasicBlock *EarlyExitBlock) { … }

bool SILateBranchLowering::runOnMachineFunction(MachineFunction &MF) { … }