1 //===- GlobalSplit.h - global variable splitter -----------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This pass uses inrange annotations on GEP indices to split globals where
11 // beneficial. Clang currently attaches these annotations to references to
12 // virtual table globals under the Itanium ABI for the benefit of the
13 // whole-program virtual call optimization and control flow integrity passes.
14 //
15 //===----------------------------------------------------------------------===//
16 
17 #ifndef LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H
18 #define LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H
19 
20 #include "llvm/IR/PassManager.h"
21 
22 namespace llvm {
23 
24 class Module;
25 
26 /// Pass to perform split of global variables.
27 class GlobalSplitPass : public PassInfoMixin<GlobalSplitPass> {
28 public:
29   PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
30 };
31 
32 } // end namespace llvm
33 
34 #endif // LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H
35