| //===- ReduceFunctions.cpp - Specialized Delta Pass -----------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements a function which calls the Generic Delta pass in order |
| // to reduce function bodies in the provided Module. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "ReduceFunctionBodies.h" |
| #include "Delta.h" |
| #include "llvm/IR/GlobalValue.h" |
| |
| using namespace llvm; |
| |
| /// Removes all the bodies of defined functions that aren't inside any of the |
| /// desired Chunks. |
| static void extractFunctionBodiesFromModule(Oracle &O, Module &Program) { |
| // Delete out-of-chunk function bodies |
| std::vector<Function *> FuncDefsToReduce; |
| for (auto &F : Program) |
| if (!F.isDeclaration() && !O.shouldKeep()) { |
| F.deleteBody(); |
| F.setComdat(nullptr); |
| } |
| } |
| |
| void llvm::reduceFunctionBodiesDeltaPass(TestRunner &Test) { |
| errs() << "*** Reducing Function Bodies...\n"; |
| runDeltaPass(Test, extractFunctionBodiesFromModule); |
| errs() << "----------------------------\n"; |
| } |