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