| //===- SplitModule.h - Split a module into partitions -----------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the function llvm::SplitModule, which splits a module |
| // into multiple linkable partitions. It can be used to implement parallel code |
| // generation for link-time optimization. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_TRANSFORMS_UTILS_SPLITMODULE_H |
| #define LLVM_TRANSFORMS_UTILS_SPLITMODULE_H |
| |
| #include "llvm/ADT/STLExtras.h" |
| #include <memory> |
| |
| namespace llvm { |
| |
| class Module; |
| |
| /// Splits the module M into N linkable partitions. The function ModuleCallback |
| /// is called N times passing each individual partition as the MPart argument. |
| /// |
| /// FIXME: This function does not deal with the somewhat subtle symbol |
| /// visibility issues around module splitting, including (but not limited to): |
| /// |
| /// - Internal symbols should not collide with symbols defined outside the |
| /// module. |
| /// - Internal symbols defined in module-level inline asm should be visible to |
| /// each partition. |
| void SplitModule( |
| std::unique_ptr<Module> M, unsigned N, |
| function_ref<void(std::unique_ptr<Module> MPart)> ModuleCallback, |
| bool PreserveLocals = false); |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_TRANSFORMS_UTILS_SPLITMODULE_H |
