| // Copyright 2016 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| |
| #include "llvm/IR/Module.h" |
| |
| using namespace llvm; |
| |
| namespace { |
| |
| class TestLLVMPass : public ModulePass { |
| |
| public: |
| |
| static char ID; |
| TestLLVMPass() : ModulePass(ID) { } |
| |
| bool runOnModule(Module &M) override; |
| |
| const char *getPassName() const override { |
| return "Some LLVM pass"; |
| } |
| |
| }; |
| |
| } |
| |
| bool TestLLVMPass::runOnModule(Module &M) { |
| // A couple examples of operations that previously caused segmentation faults |
| // https://github.com/rust-lang/rust/issues/31067 |
| |
| for (auto F = M.begin(); F != M.end(); ++F) { |
| /* code */ |
| } |
| |
| LLVMContext &C = M.getContext(); |
| IntegerType *Int8Ty = IntegerType::getInt8Ty(C); |
| PointerType::get(Int8Ty, 0); |
| return true; |
| } |
| |
| char TestLLVMPass::ID = 0; |
| |
| static RegisterPass<TestLLVMPass> RegisterAFLPass( |
| "some-llvm-module-pass", "Some LLVM pass"); |