1 //===- llvm/Transforms/IPO.h - Interprocedural Transformations --*- 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 header file defines prototypes for accessor functions that expose passes 10 // in the IPO transformations library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_TRANSFORMS_IPO_H 15 #define LLVM_TRANSFORMS_IPO_H 16 17 namespace llvm { 18 19 class ModulePass; 20 class Pass; 21 class raw_ostream; 22 23 //===----------------------------------------------------------------------===// 24 /// createDeadArgEliminationPass - This pass removes arguments from functions 25 /// which are not used by the body of the function. 26 /// 27 ModulePass *createDeadArgEliminationPass(); 28 29 /// DeadArgHacking pass - Same as DAE, but delete arguments of external 30 /// functions as well. This is definitely not safe, and should only be used by 31 /// bugpoint. 32 ModulePass *createDeadArgHackingPass(); 33 34 //===----------------------------------------------------------------------===// 35 // 36 /// createLoopExtractorPass - This pass extracts all natural loops from the 37 /// program into a function if it can. 38 /// 39 Pass *createLoopExtractorPass(); 40 41 /// createSingleLoopExtractorPass - This pass extracts one natural loop from the 42 /// program into a function if it can. This is used by bugpoint. 43 /// 44 Pass *createSingleLoopExtractorPass(); 45 46 //===----------------------------------------------------------------------===// 47 /// createBarrierNoopPass - This pass is purely a module pass barrier in a pass 48 /// manager. 49 ModulePass *createBarrierNoopPass(); 50 51 /// What to do with the summary when running passes that operate on it. 52 enum class PassSummaryAction { 53 None, ///< Do nothing. 54 Import, ///< Import information from summary. 55 Export, ///< Export information to summary. 56 }; 57 58 } // End llvm namespace 59 60 #endif 61