1 //===- ModuleInliner.h - Module level Inliner pass --------------*- 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 #ifndef LLVM_TRANSFORMS_IPO_MODULEINLINER_H
10 #define LLVM_TRANSFORMS_IPO_MODULEINLINER_H
11 
12 #include "llvm/Analysis/InlineAdvisor.h"
13 #include "llvm/Analysis/InlineCost.h"
14 #include "llvm/IR/PassManager.h"
15 
16 namespace llvm {
17 
18 /// The module inliner pass for the new pass manager.
19 ///
20 /// This pass wires together the inlining utilities and the inline cost
21 /// analysis into a module pass. Different from SCC inliner, it considers every
22 /// call in every function in the whole module and tries to inline if
23 /// profitable. With this module level inliner, it is possible to evaluate more
24 /// heuristics in the module level such like PriorityInlineOrder. It can be
25 /// tuned with a number of parameters to control what cost model is used and
26 /// what tradeoffs are made when making the decision.
27 class ModuleInlinerPass : public PassInfoMixin<ModuleInlinerPass> {
28 public:
29   ModuleInlinerPass(InlineParams Params = getInlineParams(),
30                     InliningAdvisorMode Mode = InliningAdvisorMode::Default,
31                     ThinOrFullLTOPhase LTOPhase = ThinOrFullLTOPhase::None)
32       : Params(Params), Mode(Mode), LTOPhase(LTOPhase){};
33   ModuleInlinerPass(ModuleInlinerPass &&Arg) = default;
34 
35   PreservedAnalyses run(Module &, ModuleAnalysisManager &);
36 
37 private:
38   InlineAdvisor &getAdvisor(const ModuleAnalysisManager &MAM,
39                             FunctionAnalysisManager &FAM, Module &M);
40   std::unique_ptr<InlineAdvisor> OwnedAdvisor;
41   const InlineParams Params;
42   const InliningAdvisorMode Mode;
43   const ThinOrFullLTOPhase LTOPhase;
44 };
45 } // end namespace llvm
46 
47 #endif // LLVM_TRANSFORMS_IPO_MODULEINLINER_H
48