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