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- //===- 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";
- }
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