LLVM 20.0.0git
SplitModule.h
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1//===- SplitModule.h - Split a module into partitions -----------*- 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 file defines the function llvm::SplitModule, which splits a module
10// into multiple linkable partitions. It can be used to implement parallel code
11// generation for link-time optimization.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_TRANSFORMS_UTILS_SPLITMODULE_H
16#define LLVM_TRANSFORMS_UTILS_SPLITMODULE_H
17
19#include <memory>
20
21namespace llvm {
22
23class Module;
24
25/// Splits the module M into N linkable partitions. The function ModuleCallback
26/// is called N times passing each individual partition as the MPart argument.
27/// PreserveLocals: Split without externalizing locals.
28/// RoundRobin: Use round-robin distribution of functions to modules instead
29/// of the default name-hash-based one.
30///
31/// FIXME: This function does not deal with the somewhat subtle symbol
32/// visibility issues around module splitting, including (but not limited to):
33///
34/// - Internal symbols should not collide with symbols defined outside the
35/// module.
36/// - Internal symbols defined in module-level inline asm should be visible to
37/// each partition.
38void SplitModule(
39 Module &M, unsigned N,
40 function_ref<void(std::unique_ptr<Module> MPart)> ModuleCallback,
41 bool PreserveLocals = false, bool RoundRobin = false);
42
43} // end namespace llvm
44
45#endif // LLVM_TRANSFORMS_UTILS_SPLITMODULE_H
Machine Check Debug Module
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
void SplitModule(Module &M, unsigned N, function_ref< void(std::unique_ptr< Module > MPart)> ModuleCallback, bool PreserveLocals=false, bool RoundRobin=false)
Splits the module M into N linkable partitions.
#define N