1 //===- GlobalSplit.h - global variable splitter -----------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This pass uses inrange annotations on GEP indices to split globals where 10 // beneficial. Clang currently attaches these annotations to references to 11 // virtual table globals under the Itanium ABI for the benefit of the 12 // whole-program virtual call optimization and control flow integrity passes. 13 // 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H 17 #define LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H 18 19 #include "llvm/IR/PassManager.h" 20 21 namespace llvm { 22 23 class Module; 24 25 /// Pass to perform split of global variables. 26 class GlobalSplitPass : public PassInfoMixin<GlobalSplitPass> { 27 public: 28 PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM); 29 }; 30 31 } // end namespace llvm 32 33 #endif // LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H 34