1 //===-- AlwaysInliner.h - Pass to inline "always_inline" functions --------===// 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 /// \file 10 /// Provides passes to inlining "always_inline" functions. 11 /// 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_TRANSFORMS_IPO_ALWAYSINLINER_H 15 #define LLVM_TRANSFORMS_IPO_ALWAYSINLINER_H 16 17 #include "llvm/IR/PassManager.h" 18 19 namespace llvm { 20 21 class Module; 22 class Pass; 23 24 /// Inlines functions marked as "always_inline". 25 /// 26 /// Note that this does not inline call sites marked as always_inline and does 27 /// not delete the functions even when all users are inlined. The normal 28 /// inliner should be used to handle call site inlining, this pass's goal is to 29 /// be the simplest possible pass to remove always_inline function definitions' 30 /// uses by inlining them. The \c GlobalDCE pass can be used to remove these 31 /// functions once all users are gone. 32 class AlwaysInlinerPass : public PassInfoMixin<AlwaysInlinerPass> { 33 bool InsertLifetime; 34 35 public: 36 AlwaysInlinerPass(bool InsertLifetime = true) 37 : InsertLifetime(InsertLifetime) {} 38 39 PreservedAnalyses run(Module &M, ModuleAnalysisManager &); 40 static bool isRequired() { return true; } 41 }; 42 43 /// Create a legacy pass manager instance of a pass to inline and remove 44 /// functions marked as "always_inline". 45 Pass *createAlwaysInlinerLegacyPass(bool InsertLifetime = true); 46 47 } 48 49 #endif // LLVM_TRANSFORMS_IPO_ALWAYSINLINER_H 50