include/llvm/Transforms/IPO/GlobalSplit.h

   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