X86MachineInstrPrinter.cpp

#include "X86.h"
#include "X86InstrInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/Target/TargetRegisterInfo.h"

using namespace llvm;

#define X86_MACHINEINSTR_PRINTER_PASS_NAME "Dummy X86 machineinstr printer pass"

namespace {

class X86MachineInstrPrinter : public MachineFunctionPass {
public:
    static char ID;

    X86MachineInstrPrinter() : MachineFunctionPass(ID) {
        initializeX86MachineInstrPrinterPass(*PassRegistry::getPassRegistry());
    }

    bool runOnMachineFunction(MachineFunction &MF) override;

    StringRef getPassName() const override { return X86_MACHINEINSTR_PRINTER_PASS_NAME; }
};

char X86MachineInstrPrinter::ID = 0;

bool X86MachineInstrPrinter::runOnMachineFunction(MachineFunction &MF) {

    for (auto &MBB : MF) {
        outs() << "Contents of MachineBasicBlock:\n";
        outs() << MBB << "\n";
        const BasicBlock *BB = MBB.getBasicBlock();
        outs() << "Contents of BasicBlock corresponding to MachineBasicBlock:\n";
        outs() << BB << "\n";
    }

    return false;
}

} // end of anonymous namespace

INITIALIZE_PASS(X86MachineInstrPrinter, "x86-machineinstr-printer",
    X86_MACHINEINSTR_PRINTER_PASS_NAME,
    true, // is CFG only?
    true  // is analysis?
)

namespace llvm {

FunctionPass *createX86MachineInstrPrinterPass() { return new X86MachineInstrPrinter(); }

}

createX86MachineInstrPrinterPass should be createX86MachineInstrPrinter at end, no?

also the header "llvm/Target/TargetRegisterInfo.h" seemed to move to "llvm/CodeGen/TargetRegisterInfo.h"

thanks @RadhikaG for the post! helped a lot.

also wish that I had seen @uzleo comments sooner!