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promise_result.cpp
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promise_result.cpp
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/**
* @file promise_result.cpp
* @brief find all PromiseResult uses
*
*/
#include "near_core.h"
#include <fstream>
#include <set>
#include <utility>
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/Pass.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Regex.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/IPO/PassManagerBuilder.h"
namespace {
struct PromiseResult : public llvm::FunctionPass {
static char ID;
private:
llvm::raw_fd_ostream *os = nullptr;
public:
PromiseResult() : FunctionPass(ID) {
std::error_code EC;
os = new llvm::raw_fd_ostream(std::string(getenv("TMP_DIR")) + std::string("/.promise-result.tmp"), EC, llvm::sys::fs::OpenFlags::OF_Append);
}
~PromiseResult() { os->close(); }
bool runOnFunction(llvm::Function &F) override {
using namespace llvm;
if (!Rustle::debug_check_all_func && Rustle::regexForLibFunc.match(F.getName()))
return false;
if (Rustle::debug_print_function)
Rustle::Logger().Debug("Checking function ", F.getName());
for (BasicBlock &BB : F)
for (Instruction &I : BB) {
if (!I.getDebugLoc().get() || Rustle::regexForLibLoc.match(I.getDebugLoc().get()->getFilename()))
continue;
// if (auto CI = dyn_cast<CastInst>(&I)) { // for offset > 0
// if (Regex(".+PromiseResult.+").match(Rustle::printToString(CI->getSrcTy()))) {
if (Rustle::isInstCallFunc(&I, Rustle::regexPromiseResult)) {
Rustle::Logger().Info("PromiseResult use at ", &I.getDebugLoc());
*os << F.getName() << "@" << I.getDebugLoc()->getFilename() << "@" << I.getDebugLoc().getLine() << "\n";
}
// }
// }
}
return false;
}
};
} // namespace
char PromiseResult::ID = 0;
static llvm::RegisterPass<PromiseResult> X("promise-result", "", false /* Only looks at CFG */, false /* Analysis Pass */);
static llvm::RegisterStandardPasses Y(llvm::PassManagerBuilder::EP_EarlyAsPossible, [](const llvm::PassManagerBuilder &builder, llvm::legacy::PassManagerBase &PM) { PM.add(new PromiseResult()); });