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03394e4dc6
llvm-svn: 169881
200 lines
7.8 KiB
C++
200 lines
7.8 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 is distributed under the University of Illinois Open Source
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// 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 "llvm/ADT/ArrayRef.h"
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namespace llvm {
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class ModulePass;
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class Pass;
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class Function;
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class BasicBlock;
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class GlobalValue;
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//===----------------------------------------------------------------------===//
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//
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// These functions removes symbols from functions and modules. If OnlyDebugInfo
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// is true, only debugging information is removed from the module.
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//
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ModulePass *createStripSymbolsPass(bool OnlyDebugInfo = false);
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//===----------------------------------------------------------------------===//
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//
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// These functions strips symbols from functions and modules.
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// Only debugging information is not stripped.
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//
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ModulePass *createStripNonDebugSymbolsPass();
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//===----------------------------------------------------------------------===//
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//
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// These pass removes llvm.dbg.declare intrinsics.
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ModulePass *createStripDebugDeclarePass();
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//===----------------------------------------------------------------------===//
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//
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// These pass removes unused symbols' debug info.
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ModulePass *createStripDeadDebugInfoPass();
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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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ModulePass *createConstantMergePass();
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//===----------------------------------------------------------------------===//
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/// createGlobalOptimizerPass - This function returns a new pass that optimizes
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/// non-address taken internal globals.
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///
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ModulePass *createGlobalOptimizerPass();
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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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ModulePass *createGlobalDCEPass();
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//===----------------------------------------------------------------------===//
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/// createGVExtractionPass - If deleteFn is true, this pass deletes
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/// the specified global values. Otherwise, it deletes as much of the module as
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/// possible, except for the global values specified.
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///
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ModulePass *createGVExtractionPass(std::vector<GlobalValue*>& GVs, bool
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deleteFn = false);
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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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/// The -inline-threshold command line option takes precedence over the
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/// threshold given here.
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Pass *createFunctionInliningPass();
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Pass *createFunctionInliningPass(int Threshold);
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//===----------------------------------------------------------------------===//
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/// createAlwaysInlinerPass - Return a new pass object that inlines only
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/// functions that are marked as "always_inline".
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Pass *createAlwaysInlinerPass();
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Pass *createAlwaysInlinerPass(bool InsertLifetime);
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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, internalizing all globals (functions and variables) not in the
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/// given exportList.
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///
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/// Note that commandline options that are used with the above function are not
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/// used now!
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ModulePass *createInternalizePass(ArrayRef<const char *> exportList);
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/// createInternalizePass - Same as above, but with an empty exportList.
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ModulePass *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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ModulePass *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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ModulePass *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 if the number of elements passed is smaller or
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/// equal to maxElements (maxElements == 0 means always promote).
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///
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Pass *createArgumentPromotionPass(unsigned maxElements = 3);
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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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ModulePass *createIPConstantPropagationPass();
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//===----------------------------------------------------------------------===//
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/// createIPSCCPPass - This pass propagates constants from call sites into the
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/// bodies of functions, and keeps track of whether basic blocks are executable
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/// in the process.
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///
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ModulePass *createIPSCCPPass();
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//===----------------------------------------------------------------------===//
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//
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/// createLoopExtractorPass - This pass extracts all natural loops from the
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/// program into a function if it can.
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///
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Pass *createLoopExtractorPass();
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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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ModulePass *createBlockExtractorPass();
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/// createStripDeadPrototypesPass - This pass removes any function declarations
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/// (prototypes) that are not used.
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ModulePass *createStripDeadPrototypesPass();
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//===----------------------------------------------------------------------===//
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/// createFunctionAttrsPass - This pass discovers functions that do not access
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/// memory, or only read memory, and gives them the readnone/readonly attribute.
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/// It also discovers function arguments that are not captured by the function
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/// and marks them with the nocapture attribute.
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///
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Pass *createFunctionAttrsPass();
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//===----------------------------------------------------------------------===//
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/// createMergeFunctionsPass - This pass discovers identical functions and
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/// collapses them.
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///
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ModulePass *createMergeFunctionsPass();
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//===----------------------------------------------------------------------===//
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/// createPartialInliningPass - This pass inlines parts of functions.
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///
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ModulePass *createPartialInliningPass();
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//===----------------------------------------------------------------------===//
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// createMetaRenamerPass - Rename everything with metasyntatic names.
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//
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ModulePass *createMetaRenamerPass();
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//===----------------------------------------------------------------------===//
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/// createBarrierNoopPass - This pass is purely a module pass barrier in a pass
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/// manager.
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ModulePass *createBarrierNoopPass();
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} // End llvm namespace
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#endif
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