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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15713 91177308-0d34-0410-b5e6-96231b3b80d8
150 lines
5.6 KiB
C++
150 lines
5.6 KiB
C++
//===- llvm/Transforms/IPO.h - Interprocedural Transformations --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This header file defines prototypes for accessor functions that expose passes
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// in the IPO transformations library.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_IPO_H
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#define LLVM_TRANSFORMS_IPO_H
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#include <vector>
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namespace llvm {
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class Pass;
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class Function;
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class BasicBlock;
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//===----------------------------------------------------------------------===//
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/// createLowerSetJmpPass - This function lowers the setjmp/longjmp intrinsics
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/// to invoke/unwind instructions. This should really be part of the C/C++
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/// front-end, but it's so much easier to write transformations in LLVM proper.
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///
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Pass* createLowerSetJmpPass();
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//===----------------------------------------------------------------------===//
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/// createConstantMergePass - This function returns a new pass that merges
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/// duplicate global constants together into a single constant that is shared.
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/// This is useful because some passes (ie TraceValues) insert a lot of string
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/// constants into the program, regardless of whether or not they duplicate an
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/// existing string.
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///
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Pass *createConstantMergePass();
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//===----------------------------------------------------------------------===//
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/// createGlobalConstifierPass - This function returns a new pass that marks
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/// internal globals "constant" if they are provably never written to.
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///
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Pass *createGlobalConstifierPass();
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//===----------------------------------------------------------------------===//
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/// createRaiseAllocationsPass - Return a new pass that transforms malloc and
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/// free function calls into malloc and free instructions.
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///
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Pass *createRaiseAllocationsPass();
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//===----------------------------------------------------------------------===//
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/// createDeadTypeEliminationPass - Return a new pass that eliminates symbol
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/// table entries for types that are never used.
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///
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Pass *createDeadTypeEliminationPass();
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//===----------------------------------------------------------------------===//
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/// createGlobalDCEPass - This transform is designed to eliminate unreachable
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/// internal globals (functions or global variables)
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///
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Pass *createGlobalDCEPass();
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//===----------------------------------------------------------------------===//
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/// createFunctionExtractionPass - If deleteFn is true, this pass deletes as
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/// the specified function. Otherwise, it deletes as much of the module as
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/// possible, except for the function specified.
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///
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Pass *createFunctionExtractionPass(Function *F, bool deleteFn = false);
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//===----------------------------------------------------------------------===//
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/// FunctionResolvingPass - Go over the functions that are in the module and
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/// look for functions that have the same name. More often than not, there will
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/// be things like:
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/// void "foo"(...)
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/// void "foo"(int, int)
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/// because of the way things are declared in C. If this is the case, patch
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/// things up.
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///
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/// This is an interprocedural pass.
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///
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Pass *createFunctionResolvingPass();
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//===----------------------------------------------------------------------===//
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/// createFunctionInliningPass - Return a new pass object that uses a heuristic
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/// to inline direct function calls to small functions.
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///
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Pass *createFunctionInliningPass();
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//===----------------------------------------------------------------------===//
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/// createPruneEHPass - Return a new pass object which transforms invoke
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/// instructions into calls, if the callee can _not_ unwind the stack.
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///
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Pass *createPruneEHPass();
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//===----------------------------------------------------------------------===//
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/// createInternalizePass - This pass loops over all of the functions in the
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/// input module, looking for a main function. If a main function is found, all
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/// other functions are marked as internal.
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///
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Pass *createInternalizePass();
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//===----------------------------------------------------------------------===//
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/// createDeadArgEliminationPass - This pass removes arguments from functions
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/// which are not used by the body of the function.
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///
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Pass *createDeadArgEliminationPass();
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/// DeadArgHacking pass - Same as DAE, but delete arguments of external
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/// functions as well. This is definitely not safe, and should only be used by
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/// bugpoint.
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Pass *createDeadArgHackingPass();
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//===----------------------------------------------------------------------===//
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/// createArgumentPromotionPass - This pass promotes "by reference" arguments to
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/// be passed by value.
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///
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Pass *createArgumentPromotionPass();
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//===----------------------------------------------------------------------===//
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/// createIPConstantPropagationPass - This pass propagates constants from call
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/// sites into the bodies of functions.
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///
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Pass *createIPConstantPropagationPass();
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//===----------------------------------------------------------------------===//
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//
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/// createSingleLoopExtractorPass - This pass extracts one natural loop from the
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/// program into a function if it can. This is used by bugpoint.
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///
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Pass *createSingleLoopExtractorPass();
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// createBlockExtractorPass - This pass extracts all blocks (except those
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// specified in the argument list) from the functions in the module.
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//
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Pass *llvm::createBlockExtractorPass(std::vector<BasicBlock*> &BTNE);
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} // End llvm namespace
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#endif
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