程序代写 #include “Instrument.h”

#include “Instrument.h”
#include “Utils.h”

using namespace llvm;

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namespace instrument {

const auto PASS_NAME = “DynamicAnalysisPass”;
const auto PASS_DESC = “Dynamic Analysis Pass”;
const auto COVERAGE_FUNCTION_NAME = “__coverage__”;
const auto BINOP_OPERANDS_FUNCTION_NAME = “__binop_op__”;

void instrumentCoverage(Module *M, Instruction &I, int Line, int Col);
void instrumentBinOpOperands(Module *M, BinaryOperator *BinOp, int Line,

bool Instrument::runOnFunction(Function &F) {
auto FunctionName = F.getName().str();
outs() << "Running " << PASS_DESC << " on function " << FunctionName << "\n"; outs() << "Instrument Instructions\n"; LLVMContext &Context = F.getContext(); Module *M = F.getParent(); Type *VoidType = Type::getVoidTy(Context); Type *Int32Type = Type::getInt32Ty(Context); Type *Int8Type = Type::getInt8Ty(Context); M->getOrInsertFunction(COVERAGE_FUNCTION_NAME, VoidType, Int32Type,
Int32Type);

M->getOrInsertFunction(BINOP_OPERANDS_FUNCTION_NAME, VoidType, Int8Type,
Int32Type, Int32Type, Int32Type, Int32Type);

for (inst_iterator Iter = inst_begin(F), E = inst_end(F); Iter != E; ++Iter) {
Instruction &Inst = (*Iter);
llvm::DebugLoc DebugLoc = Inst.getDebugLoc();
if (!DebugLoc) {
// Skip Instruction if it doesn’t have debug information.

int Line = DebugLoc.getLine();
int Col = DebugLoc.getCol();
instrumentCoverage(M, Inst, Line, Col);

* TODO: Add code to check if the instruction is a BinaryOperator and if so,
* instrument the instruction as specified in the Lab document.

return true;

void instrumentCoverage(Module *M, Instruction &I, int Line, int Col) {
auto &Context = M->getContext();
auto *Int32Type = Type::getInt32Ty(Context);

auto LineVal = ConstantInt::get(Int32Type, Line);
auto ColVal = ConstantInt::get(Int32Type, Col);

std::vector Args = {LineVal, ColVal};

auto *CoverageFunction = M->getFunction(COVERAGE_FUNCTION_NAME);
CallInst::Create(CoverageFunction, Args, “”, &I);

void instrumentBinOpOperands(Module *M, BinaryOperator *BinOp, int Line,
int Col) {
auto &Context = M->getContext();
auto *Int32Type = Type::getInt32Ty(Context);
auto *CharType = Type::getInt8Ty(Context);

* TODO: Add code to instrument the BinaryOperator to print
* its location, operation type and the runtime values of its
* operands.

char Instrument::ID = 1;
static RegisterPass X(PASS_NAME, PASS_NAME, false, false);

} // namespace instrument

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