llvm/llvm/lib/Target/Hexagon/HexagonVectorPrint.cpp

//===- HexagonVectorPrint.cpp - Generate vector printing instructions -----===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This pass adds the capability to generate pseudo vector/predicate register
// printing instructions. These pseudo instructions should be used with the
// simulator, NEVER on hardware.
//
//===----------------------------------------------------------------------===//

#include "HexagonInstrInfo.h"
#include "HexagonSubtarget.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <string>
#include <vector>

usingnamespacellvm;

#define DEBUG_TYPE …

static cl::opt<bool>
    TraceHexVectorStoresOnly("trace-hex-vector-stores-only", cl::Hidden,
                             cl::desc("Enables tracing of vector stores"));

namespace llvm {

FunctionPass *createHexagonVectorPrint();
void initializeHexagonVectorPrintPass(PassRegistry&);

} // end namespace llvm

namespace {

class HexagonVectorPrint : public MachineFunctionPass { … };

} // end anonymous namespace

char HexagonVectorPrint::ID = …;

static bool isVecReg(unsigned Reg) { … }

static std::string getStringReg(unsigned R) { … }

static void addAsmInstr(MachineBasicBlock *MBB, unsigned Reg,
                        MachineBasicBlock::instr_iterator I,
                        const DebugLoc &DL, const HexagonInstrInfo *QII,
                        MachineFunction &Fn) { … }

static bool getInstrVecReg(const MachineInstr &MI, unsigned &Reg) { … }

bool HexagonVectorPrint::runOnMachineFunction(MachineFunction &Fn) { … }

//===----------------------------------------------------------------------===//
//                         Public Constructor Functions
//===----------------------------------------------------------------------===//
INITIALIZE_PASS(…)

FunctionPass *llvm::createHexagonVectorPrint() { … }