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lib/FunctionInternalizerPass.cpp
57 строк
2 KB
Diego Novillo
Re-implement clspv-opt as a standalone driver (#346)
11 апр 2019, 17:56
Не верифицирован
11 апр 2019, 17:56
a4c44fa
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// Copyright 2017 The Clspv Authors. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include "llvm/IR/Module.h" #include "llvm/Pass.h" #include "Passes.h" using namespace llvm; #define DEBUG_TYPE "FunctionInternalizer" namespace { struct FunctionInternalizerPass : public ModulePass { static char ID; FunctionInternalizerPass() : ModulePass(ID) {} bool runOnModule(Module &M) override; }; } // namespace char FunctionInternalizerPass::ID = 0; INITIALIZE_PASS(FunctionInternalizerPass, "FunctionInternalizer", "Function Internalizer Pass", false, false) namespace clspv { ModulePass *createFunctionInternalizerPass() { return new FunctionInternalizerPass(); } } // namespace clspv bool FunctionInternalizerPass::runOnModule(Module &M) { SmallVector<Function *, 8> ToRemoves; for (auto &F : M) { if ((CallingConv::SPIR_KERNEL != F.getCallingConv()) && F.user_empty()) { ToRemoves.push_back(&F); } } for (auto *F : ToRemoves) { F->eraseFromParent(); } return !ToRemoves.empty(); }