1 //===- llvm/Transforms/IPO.h - Interprocedural Transformations --*- C++ -*-===//
3 // This header file defines prototypes for accessor functions that expose passes
4 // in the IPO transformations library.
6 //===----------------------------------------------------------------------===//
8 #ifndef LLVM_TRANSFORMS_IPO_H
9 #define LLVM_TRANSFORMS_IPO_H
14 //===----------------------------------------------------------------------===//
15 // createConstantMergePass - This function returns a new pass that merges
16 // duplicate global constants together into a single constant that is shared.
17 // This is useful because some passes (ie TraceValues) insert a lot of string
18 // constants into the program, regardless of whether or not they duplicate an
21 Pass *createConstantMergePass();
24 //===----------------------------------------------------------------------===//
25 // createRaiseAllocationsPass - Return a new pass that transforms malloc and
26 // free function calls into malloc and free instructions.
28 Pass *createRaiseAllocationsPass();
31 //===----------------------------------------------------------------------===//
32 // createDeadTypeEliminationPass - Return a new pass that eliminates symbol
33 // table entries for types that are never used.
35 Pass *createDeadTypeEliminationPass();
38 //===----------------------------------------------------------------------===//
39 // createGlobalDCEPass - This transform is designed to eliminate unreachable
40 // internal globals (functions or global variables)
42 Pass *createGlobalDCEPass();
45 //===----------------------------------------------------------------------===//
46 // createFunctionExtractionPass - This pass deletes as much of the module as
47 // possible, except for the function specified.
49 Pass *createFunctionExtractionPass(Function *F);
52 //===----------------------------------------------------------------------===//
53 // FunctionResolvingPass - Go over the functions that are in the module and
54 // look for functions that have the same name. More often than not, there will
57 // void "foo"(int, int)
58 // because of the way things are declared in C. If this is the case, patch
61 // This is an interprocedural pass.
63 Pass *createFunctionResolvingPass();
65 //===----------------------------------------------------------------------===//
66 // createFunctionInliningPass - Return a new pass object that uses a heuristic
67 // to inline direct function calls to small functions.
69 Pass *createFunctionInliningPass();
71 //===----------------------------------------------------------------------===//
72 // createPruneEHPass - Return a new pass object which transforms invoke
73 // instructions into calls, if the callee can _not_ unwind the stack.
75 Pass *createPruneEHPass();
77 //===----------------------------------------------------------------------===//
78 // createInternalizePass - This pass loops over all of the functions in the
79 // input module, looking for a main function. If a main function is found, all
80 // other functions are marked as internal.
82 Pass *createInternalizePass();
84 //===----------------------------------------------------------------------===//
85 // createDeadArgEliminationPass - This pass removes arguments from functions
86 // which are not used by the body of the function. If
87 // DeleteFromExternalFunctions is true, the pass will modify functions that have
88 // external linkage, which is not usually safe (this is used by bugpoint to
91 Pass *createDeadArgEliminationPass(bool DeleteFromExternalFunctions=false);
94 //===----------------------------------------------------------------------===//
95 // These passes are wrappers that can do a few simple structure mutation
98 Pass *createSwapElementsPass();
99 Pass *createSortElementsPass();