forked from OSchip/llvm-project
Created ObjCARCUtil.cpp for functions which in my humble opinion are too large to static inline and place in a header file such as ObjCARC.h.
llvm-svn: 173666
This commit is contained in:
Michael Gottesman
parent
d269a3e281
commit
5ed40afe17
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@ -4,6 +4,7 @@ add_llvm_library(LLVMObjCARCOpts
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ObjCARCExpand.cpp
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ObjCARCAPElim.cpp
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ObjCARCAliasAnalysis.cpp
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ObjCARCUtil.cpp
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)
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add_dependencies(LLVMObjCARCOpts intrinsics_gen)
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@ -91,60 +91,7 @@ enum InstructionClass {
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IC_None ///< anything else
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};
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static raw_ostream &operator<<(raw_ostream &OS, const InstructionClass Class)
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LLVM_ATTRIBUTE_USED;
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static raw_ostream &operator<<(raw_ostream &OS, const InstructionClass Class) {
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switch (Class) {
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case IC_Retain:
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return OS << "IC_Retain";
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case IC_RetainRV:
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return OS << "IC_RetainRV";
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case IC_RetainBlock:
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return OS << "IC_RetainBlock";
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case IC_Release:
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return OS << "IC_Release";
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case IC_Autorelease:
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return OS << "IC_Autorelease";
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case IC_AutoreleaseRV:
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return OS << "IC_AutoreleaseRV";
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case IC_AutoreleasepoolPush:
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return OS << "IC_AutoreleasepoolPush";
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case IC_AutoreleasepoolPop:
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return OS << "IC_AutoreleasepoolPop";
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case IC_NoopCast:
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return OS << "IC_NoopCast";
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case IC_FusedRetainAutorelease:
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return OS << "IC_FusedRetainAutorelease";
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case IC_FusedRetainAutoreleaseRV:
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return OS << "IC_FusedRetainAutoreleaseRV";
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case IC_LoadWeakRetained:
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return OS << "IC_LoadWeakRetained";
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case IC_StoreWeak:
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return OS << "IC_StoreWeak";
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case IC_InitWeak:
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return OS << "IC_InitWeak";
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case IC_LoadWeak:
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return OS << "IC_LoadWeak";
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case IC_MoveWeak:
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return OS << "IC_MoveWeak";
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case IC_CopyWeak:
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return OS << "IC_CopyWeak";
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case IC_DestroyWeak:
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return OS << "IC_DestroyWeak";
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case IC_StoreStrong:
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return OS << "IC_StoreStrong";
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case IC_CallOrUser:
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return OS << "IC_CallOrUser";
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case IC_Call:
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return OS << "IC_Call";
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case IC_User:
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return OS << "IC_User";
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case IC_None:
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return OS << "IC_None";
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}
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llvm_unreachable("Unknown instruction class!");
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}
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raw_ostream &operator<<(raw_ostream &OS, const InstructionClass Class);
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/// \brief Test if the given class is objc_retain or equivalent.
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static inline bool IsRetain(InstructionClass Class) {
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@ -218,78 +165,7 @@ static inline bool IsNoThrow(InstructionClass Class) {
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/// \brief Determine if F is one of the special known Functions. If it isn't,
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/// return IC_CallOrUser.
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static InstructionClass GetFunctionClass(const Function *F)
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LLVM_ATTRIBUTE_USED;
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static InstructionClass GetFunctionClass(const Function *F) {
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Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
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// No arguments.
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if (AI == AE)
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_autoreleasePoolPush", IC_AutoreleasepoolPush)
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.Default(IC_CallOrUser);
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// One argument.
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const Argument *A0 = AI++;
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if (AI == AE)
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// Argument is a pointer.
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if (PointerType *PTy = dyn_cast<PointerType>(A0->getType())) {
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Type *ETy = PTy->getElementType();
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// Argument is i8*.
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if (ETy->isIntegerTy(8))
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_retain", IC_Retain)
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.Case("objc_retainAutoreleasedReturnValue", IC_RetainRV)
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.Case("objc_retainBlock", IC_RetainBlock)
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.Case("objc_release", IC_Release)
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.Case("objc_autorelease", IC_Autorelease)
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.Case("objc_autoreleaseReturnValue", IC_AutoreleaseRV)
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.Case("objc_autoreleasePoolPop", IC_AutoreleasepoolPop)
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.Case("objc_retainedObject", IC_NoopCast)
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.Case("objc_unretainedObject", IC_NoopCast)
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.Case("objc_unretainedPointer", IC_NoopCast)
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.Case("objc_retain_autorelease", IC_FusedRetainAutorelease)
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.Case("objc_retainAutorelease", IC_FusedRetainAutorelease)
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.Case("objc_retainAutoreleaseReturnValue",IC_FusedRetainAutoreleaseRV)
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.Default(IC_CallOrUser);
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// Argument is i8**
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if (PointerType *Pte = dyn_cast<PointerType>(ETy))
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if (Pte->getElementType()->isIntegerTy(8))
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_loadWeakRetained", IC_LoadWeakRetained)
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.Case("objc_loadWeak", IC_LoadWeak)
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.Case("objc_destroyWeak", IC_DestroyWeak)
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.Default(IC_CallOrUser);
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}
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// Two arguments, first is i8**.
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const Argument *A1 = AI++;
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if (AI == AE)
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if (PointerType *PTy = dyn_cast<PointerType>(A0->getType()))
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if (PointerType *Pte = dyn_cast<PointerType>(PTy->getElementType()))
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if (Pte->getElementType()->isIntegerTy(8))
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if (PointerType *PTy1 = dyn_cast<PointerType>(A1->getType())) {
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Type *ETy1 = PTy1->getElementType();
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// Second argument is i8*
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if (ETy1->isIntegerTy(8))
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_storeWeak", IC_StoreWeak)
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.Case("objc_initWeak", IC_InitWeak)
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.Case("objc_storeStrong", IC_StoreStrong)
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.Default(IC_CallOrUser);
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// Second argument is i8**.
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if (PointerType *Pte1 = dyn_cast<PointerType>(ETy1))
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if (Pte1->getElementType()->isIntegerTy(8))
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_moveWeak", IC_MoveWeak)
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.Case("objc_copyWeak", IC_CopyWeak)
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.Default(IC_CallOrUser);
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}
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// Anything else.
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return IC_CallOrUser;
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}
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InstructionClass GetFunctionClass(const Function *F);
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/// \brief Determine which objc runtime call instruction class V belongs to.
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///
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@ -0,0 +1,149 @@
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//===- ObjCARCUtil.h - ObjC ARC Optimization ----------*- mode: 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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/// \file
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/// This file defines several utility functions used by various ARC
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/// optimizations which are IMHO too big to be in a header file.
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///
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/// WARNING: This file knows about certain library functions. It recognizes them
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/// by name, and hardwires knowledge of their semantics.
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///
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/// WARNING: This file knows about how certain Objective-C library functions are
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/// used. Naive LLVM IR transformations which would otherwise be
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/// behavior-preserving may break these assumptions.
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///
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//===----------------------------------------------------------------------===//
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#include "ObjCARC.h"
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using namespace llvm;
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using namespace llvm::objcarc;
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raw_ostream &llvm::objcarc::operator<<(raw_ostream &OS,
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const InstructionClass Class) {
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switch (Class) {
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case IC_Retain:
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return OS << "IC_Retain";
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case IC_RetainRV:
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return OS << "IC_RetainRV";
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case IC_RetainBlock:
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return OS << "IC_RetainBlock";
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case IC_Release:
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return OS << "IC_Release";
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case IC_Autorelease:
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return OS << "IC_Autorelease";
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case IC_AutoreleaseRV:
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return OS << "IC_AutoreleaseRV";
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case IC_AutoreleasepoolPush:
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return OS << "IC_AutoreleasepoolPush";
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case IC_AutoreleasepoolPop:
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return OS << "IC_AutoreleasepoolPop";
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case IC_NoopCast:
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return OS << "IC_NoopCast";
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case IC_FusedRetainAutorelease:
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return OS << "IC_FusedRetainAutorelease";
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case IC_FusedRetainAutoreleaseRV:
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return OS << "IC_FusedRetainAutoreleaseRV";
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case IC_LoadWeakRetained:
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return OS << "IC_LoadWeakRetained";
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case IC_StoreWeak:
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return OS << "IC_StoreWeak";
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case IC_InitWeak:
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return OS << "IC_InitWeak";
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case IC_LoadWeak:
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return OS << "IC_LoadWeak";
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case IC_MoveWeak:
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return OS << "IC_MoveWeak";
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case IC_CopyWeak:
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return OS << "IC_CopyWeak";
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case IC_DestroyWeak:
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return OS << "IC_DestroyWeak";
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case IC_StoreStrong:
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return OS << "IC_StoreStrong";
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case IC_CallOrUser:
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return OS << "IC_CallOrUser";
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case IC_Call:
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return OS << "IC_Call";
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case IC_User:
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return OS << "IC_User";
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case IC_None:
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return OS << "IC_None";
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}
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llvm_unreachable("Unknown instruction class!");
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}
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InstructionClass llvm::objcarc::GetFunctionClass(const Function *F) {
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Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
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// No arguments.
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if (AI == AE)
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_autoreleasePoolPush", IC_AutoreleasepoolPush)
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.Default(IC_CallOrUser);
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// One argument.
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const Argument *A0 = AI++;
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if (AI == AE)
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// Argument is a pointer.
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if (PointerType *PTy = dyn_cast<PointerType>(A0->getType())) {
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Type *ETy = PTy->getElementType();
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// Argument is i8*.
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if (ETy->isIntegerTy(8))
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_retain", IC_Retain)
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.Case("objc_retainAutoreleasedReturnValue", IC_RetainRV)
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.Case("objc_retainBlock", IC_RetainBlock)
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.Case("objc_release", IC_Release)
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.Case("objc_autorelease", IC_Autorelease)
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.Case("objc_autoreleaseReturnValue", IC_AutoreleaseRV)
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.Case("objc_autoreleasePoolPop", IC_AutoreleasepoolPop)
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.Case("objc_retainedObject", IC_NoopCast)
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.Case("objc_unretainedObject", IC_NoopCast)
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.Case("objc_unretainedPointer", IC_NoopCast)
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.Case("objc_retain_autorelease", IC_FusedRetainAutorelease)
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.Case("objc_retainAutorelease", IC_FusedRetainAutorelease)
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.Case("objc_retainAutoreleaseReturnValue",IC_FusedRetainAutoreleaseRV)
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.Default(IC_CallOrUser);
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// Argument is i8**
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if (PointerType *Pte = dyn_cast<PointerType>(ETy))
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if (Pte->getElementType()->isIntegerTy(8))
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_loadWeakRetained", IC_LoadWeakRetained)
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.Case("objc_loadWeak", IC_LoadWeak)
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.Case("objc_destroyWeak", IC_DestroyWeak)
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.Default(IC_CallOrUser);
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}
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// Two arguments, first is i8**.
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const Argument *A1 = AI++;
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if (AI == AE)
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if (PointerType *PTy = dyn_cast<PointerType>(A0->getType()))
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if (PointerType *Pte = dyn_cast<PointerType>(PTy->getElementType()))
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if (Pte->getElementType()->isIntegerTy(8))
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if (PointerType *PTy1 = dyn_cast<PointerType>(A1->getType())) {
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Type *ETy1 = PTy1->getElementType();
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// Second argument is i8*
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if (ETy1->isIntegerTy(8))
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_storeWeak", IC_StoreWeak)
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.Case("objc_initWeak", IC_InitWeak)
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.Case("objc_storeStrong", IC_StoreStrong)
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.Default(IC_CallOrUser);
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// Second argument is i8**.
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if (PointerType *Pte1 = dyn_cast<PointerType>(ETy1))
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if (Pte1->getElementType()->isIntegerTy(8))
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return StringSwitch<InstructionClass>(F->getName())
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.Case("objc_moveWeak", IC_MoveWeak)
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.Case("objc_copyWeak", IC_CopyWeak)
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.Default(IC_CallOrUser);
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}
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// Anything else.
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return IC_CallOrUser;
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}
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