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SiMBAPass.cpp
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SiMBAPass.cpp
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#include "SiMBAPass.h"
#include <chrono>
#include "llvm/IR/Function.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/IR/LegacyPassManager.h"
// #include "llvm/Transforms/IPO/PassManagerBuilder.h"
#include "LLVMParser.h"
using namespace std;
using namespace llvm;
using namespace std::chrono;
cl::opt<bool>
UseFastCheck("fastcheck", cl::Optional,
cl::desc("Verify MBA with random values (Default true)"),
cl::value_desc("fastcheck"), cl::init(true));
cl::opt<bool> Prove("prove", cl::Optional,
cl::desc("Verify MBA with SAT solving (Default true)"),
cl::value_desc("prove"), cl::init(true));
bool SiMBAPass::runOnModule(Module &M) {
outs() << "[+] Loading LLVM Module: '" << M.getName() << "'\n";
LSiMBA::LLVMParser Parser(&M, false, UseFastCheck, false, false, false,
Prove);
auto start = high_resolution_clock::now();
int MBACount = Parser.simplify();
auto stop = high_resolution_clock::now();
auto duration = duration_cast<milliseconds>(stop - start);
outs() << "[+] MBAs found and replaced: '" << MBACount
<< "' time: " << (int)duration.count() << "ms\n";
return MBACount > 0;
}
bool SiMBAPass::runOnModuleStatic(Module &M) {
outs() << "[+] Loading LLVM Module: '" << M.getName() << "'\n";
LSiMBA::LLVMParser Parser(&M, false, UseFastCheck, false, true, Prove);
auto start = high_resolution_clock::now();
int MBACount = Parser.simplify();
auto stop = high_resolution_clock::now();
auto duration = duration_cast<milliseconds>(stop - start);
outs() << "[+] MBAs found and replaced: '" << MBACount
<< "' time: " << (int)duration.count() << "ms\n";
return MBACount > 0;
}
char SiMBAPass::ID = 0;
static RegisterPass<SiMBAPass> X("simba", "SiMBA++ MBA simplification pass",
false /* Only looks at CFG */,
false /* Analysis Pass */);
// INITIALIZE_PASS(SiMBA, "simba", "SiMBA++ MBA simplification pass", false,
// false)
ModulePass *llvm::createSiMBAPass() { return new SiMBAPass(); }