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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 2013-01-28 06:39:31 +00:00
parent d269a3e281
commit 5ed40afe17
3 changed files with 152 additions and 126 deletions
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1
llvm/lib/Transforms/ObjCARC/CMakeLists.txt
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@ -4,6 +4,7 @@ add_llvm_library(LLVMObjCARCOpts
ObjCARCExpand.cpp ObjCARCExpand.cpp
ObjCARCAPElim.cpp ObjCARCAPElim.cpp
ObjCARCAliasAnalysis.cpp ObjCARCAliasAnalysis.cpp
ObjCARCUtil.cpp
) )
add_dependencies(LLVMObjCARCOpts intrinsics_gen) add_dependencies(LLVMObjCARCOpts intrinsics_gen)

128
llvm/lib/Transforms/ObjCARC/ObjCARC.h
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@ -91,60 +91,7 @@ enum InstructionClass {
IC_None ///< anything else IC_None ///< anything else
}; };
static raw_ostream &operator<<(raw_ostream &OS, const InstructionClass Class) raw_ostream &operator<<(raw_ostream &OS, const InstructionClass Class);
LLVM_ATTRIBUTE_USED;
static raw_ostream &operator<<(raw_ostream &OS, const InstructionClass Class) {
switch (Class) {
case IC_Retain:
return OS << "IC_Retain";
case IC_RetainRV:
return OS << "IC_RetainRV";
case IC_RetainBlock:
return OS << "IC_RetainBlock";
case IC_Release:
return OS << "IC_Release";
case IC_Autorelease:
return OS << "IC_Autorelease";
case IC_AutoreleaseRV:
return OS << "IC_AutoreleaseRV";
case IC_AutoreleasepoolPush:
return OS << "IC_AutoreleasepoolPush";
case IC_AutoreleasepoolPop:
return OS << "IC_AutoreleasepoolPop";
case IC_NoopCast:
return OS << "IC_NoopCast";
case IC_FusedRetainAutorelease:
return OS << "IC_FusedRetainAutorelease";
case IC_FusedRetainAutoreleaseRV:
return OS << "IC_FusedRetainAutoreleaseRV";
case IC_LoadWeakRetained:
return OS << "IC_LoadWeakRetained";
case IC_StoreWeak:
return OS << "IC_StoreWeak";
case IC_InitWeak:
return OS << "IC_InitWeak";
case IC_LoadWeak:
return OS << "IC_LoadWeak";
case IC_MoveWeak:
return OS << "IC_MoveWeak";
case IC_CopyWeak:
return OS << "IC_CopyWeak";
case IC_DestroyWeak:
return OS << "IC_DestroyWeak";
case IC_StoreStrong:
return OS << "IC_StoreStrong";
case IC_CallOrUser:
return OS << "IC_CallOrUser";
case IC_Call:
return OS << "IC_Call";
case IC_User:
return OS << "IC_User";
case IC_None:
return OS << "IC_None";
}
llvm_unreachable("Unknown instruction class!");
}
/// \brief Test if the given class is objc_retain or equivalent. /// \brief Test if the given class is objc_retain or equivalent.
static inline bool IsRetain(InstructionClass Class) { static inline bool IsRetain(InstructionClass Class) {
@ -218,78 +165,7 @@ static inline bool IsNoThrow(InstructionClass Class) {
/// \brief Determine if F is one of the special known Functions. If it isn't, /// \brief Determine if F is one of the special known Functions. If it isn't,
/// return IC_CallOrUser. /// return IC_CallOrUser.
static InstructionClass GetFunctionClass(const Function *F) InstructionClass GetFunctionClass(const Function *F);
LLVM_ATTRIBUTE_USED;
static InstructionClass GetFunctionClass(const Function *F) {
Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
// No arguments.
if (AI == AE)
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_autoreleasePoolPush", IC_AutoreleasepoolPush)
.Default(IC_CallOrUser);
// One argument.
const Argument *A0 = AI++;
if (AI == AE)
// Argument is a pointer.
if (PointerType *PTy = dyn_cast<PointerType>(A0->getType())) {
Type *ETy = PTy->getElementType();
// Argument is i8*.
if (ETy->isIntegerTy(8))
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_retain", IC_Retain)
.Case("objc_retainAutoreleasedReturnValue", IC_RetainRV)
.Case("objc_retainBlock", IC_RetainBlock)
.Case("objc_release", IC_Release)
.Case("objc_autorelease", IC_Autorelease)
.Case("objc_autoreleaseReturnValue", IC_AutoreleaseRV)
.Case("objc_autoreleasePoolPop", IC_AutoreleasepoolPop)
.Case("objc_retainedObject", IC_NoopCast)
.Case("objc_unretainedObject", IC_NoopCast)
.Case("objc_unretainedPointer", IC_NoopCast)
.Case("objc_retain_autorelease", IC_FusedRetainAutorelease)
.Case("objc_retainAutorelease", IC_FusedRetainAutorelease)
.Case("objc_retainAutoreleaseReturnValue",IC_FusedRetainAutoreleaseRV)
.Default(IC_CallOrUser);
// Argument is i8**
if (PointerType *Pte = dyn_cast<PointerType>(ETy))
if (Pte->getElementType()->isIntegerTy(8))
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_loadWeakRetained", IC_LoadWeakRetained)
.Case("objc_loadWeak", IC_LoadWeak)
.Case("objc_destroyWeak", IC_DestroyWeak)
.Default(IC_CallOrUser);
}
// Two arguments, first is i8**.
const Argument *A1 = AI++;
if (AI == AE)
if (PointerType *PTy = dyn_cast<PointerType>(A0->getType()))
if (PointerType *Pte = dyn_cast<PointerType>(PTy->getElementType()))
if (Pte->getElementType()->isIntegerTy(8))
if (PointerType *PTy1 = dyn_cast<PointerType>(A1->getType())) {
Type *ETy1 = PTy1->getElementType();
// Second argument is i8*
if (ETy1->isIntegerTy(8))
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_storeWeak", IC_StoreWeak)
.Case("objc_initWeak", IC_InitWeak)
.Case("objc_storeStrong", IC_StoreStrong)
.Default(IC_CallOrUser);
// Second argument is i8**.
if (PointerType *Pte1 = dyn_cast<PointerType>(ETy1))
if (Pte1->getElementType()->isIntegerTy(8))
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_moveWeak", IC_MoveWeak)
.Case("objc_copyWeak", IC_CopyWeak)
.Default(IC_CallOrUser);
}
// Anything else.
return IC_CallOrUser;
}
/// \brief Determine which objc runtime call instruction class V belongs to. /// \brief Determine which objc runtime call instruction class V belongs to.
/// ///

149
llvm/lib/Transforms/ObjCARC/ObjCARCUtil.cpp Normal file
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@ -0,0 +1,149 @@
//===- ObjCARCUtil.h - ObjC ARC Optimization ----------*- mode: c++ -*-----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// This file defines several utility functions used by various ARC
/// optimizations which are IMHO too big to be in a header file.
///
/// WARNING: This file knows about certain library functions. It recognizes them
/// by name, and hardwires knowledge of their semantics.
///
/// WARNING: This file knows about how certain Objective-C library functions are
/// used. Naive LLVM IR transformations which would otherwise be
/// behavior-preserving may break these assumptions.
///
//===----------------------------------------------------------------------===//
#include "ObjCARC.h"
using namespace llvm;
using namespace llvm::objcarc;
raw_ostream &llvm::objcarc::operator<<(raw_ostream &OS,
const InstructionClass Class) {
switch (Class) {
case IC_Retain:
return OS << "IC_Retain";
case IC_RetainRV:
return OS << "IC_RetainRV";
case IC_RetainBlock:
return OS << "IC_RetainBlock";
case IC_Release:
return OS << "IC_Release";
case IC_Autorelease:
return OS << "IC_Autorelease";
case IC_AutoreleaseRV:
return OS << "IC_AutoreleaseRV";
case IC_AutoreleasepoolPush:
return OS << "IC_AutoreleasepoolPush";
case IC_AutoreleasepoolPop:
return OS << "IC_AutoreleasepoolPop";
case IC_NoopCast:
return OS << "IC_NoopCast";
case IC_FusedRetainAutorelease:
return OS << "IC_FusedRetainAutorelease";
case IC_FusedRetainAutoreleaseRV:
return OS << "IC_FusedRetainAutoreleaseRV";
case IC_LoadWeakRetained:
return OS << "IC_LoadWeakRetained";
case IC_StoreWeak:
return OS << "IC_StoreWeak";
case IC_InitWeak:
return OS << "IC_InitWeak";
case IC_LoadWeak:
return OS << "IC_LoadWeak";
case IC_MoveWeak:
return OS << "IC_MoveWeak";
case IC_CopyWeak:
return OS << "IC_CopyWeak";
case IC_DestroyWeak:
return OS << "IC_DestroyWeak";
case IC_StoreStrong:
return OS << "IC_StoreStrong";
case IC_CallOrUser:
return OS << "IC_CallOrUser";
case IC_Call:
return OS << "IC_Call";
case IC_User:
return OS << "IC_User";
case IC_None:
return OS << "IC_None";
}
llvm_unreachable("Unknown instruction class!");
}
InstructionClass llvm::objcarc::GetFunctionClass(const Function *F) {
Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
// No arguments.
if (AI == AE)
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_autoreleasePoolPush", IC_AutoreleasepoolPush)
.Default(IC_CallOrUser);
// One argument.
const Argument *A0 = AI++;
if (AI == AE)
// Argument is a pointer.
if (PointerType *PTy = dyn_cast<PointerType>(A0->getType())) {
Type *ETy = PTy->getElementType();
// Argument is i8*.
if (ETy->isIntegerTy(8))
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_retain", IC_Retain)
.Case("objc_retainAutoreleasedReturnValue", IC_RetainRV)
.Case("objc_retainBlock", IC_RetainBlock)
.Case("objc_release", IC_Release)
.Case("objc_autorelease", IC_Autorelease)
.Case("objc_autoreleaseReturnValue", IC_AutoreleaseRV)
.Case("objc_autoreleasePoolPop", IC_AutoreleasepoolPop)
.Case("objc_retainedObject", IC_NoopCast)
.Case("objc_unretainedObject", IC_NoopCast)
.Case("objc_unretainedPointer", IC_NoopCast)
.Case("objc_retain_autorelease", IC_FusedRetainAutorelease)
.Case("objc_retainAutorelease", IC_FusedRetainAutorelease)
.Case("objc_retainAutoreleaseReturnValue",IC_FusedRetainAutoreleaseRV)
.Default(IC_CallOrUser);
// Argument is i8**
if (PointerType *Pte = dyn_cast<PointerType>(ETy))
if (Pte->getElementType()->isIntegerTy(8))
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_loadWeakRetained", IC_LoadWeakRetained)
.Case("objc_loadWeak", IC_LoadWeak)
.Case("objc_destroyWeak", IC_DestroyWeak)
.Default(IC_CallOrUser);
}
// Two arguments, first is i8**.
const Argument *A1 = AI++;
if (AI == AE)
if (PointerType *PTy = dyn_cast<PointerType>(A0->getType()))
if (PointerType *Pte = dyn_cast<PointerType>(PTy->getElementType()))
if (Pte->getElementType()->isIntegerTy(8))
if (PointerType *PTy1 = dyn_cast<PointerType>(A1->getType())) {
Type *ETy1 = PTy1->getElementType();
// Second argument is i8*
if (ETy1->isIntegerTy(8))
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_storeWeak", IC_StoreWeak)
.Case("objc_initWeak", IC_InitWeak)
.Case("objc_storeStrong", IC_StoreStrong)
.Default(IC_CallOrUser);
// Second argument is i8**.
if (PointerType *Pte1 = dyn_cast<PointerType>(ETy1))
if (Pte1->getElementType()->isIntegerTy(8))
return StringSwitch<InstructionClass>(F->getName())
.Case("objc_moveWeak", IC_MoveWeak)
.Case("objc_copyWeak", IC_CopyWeak)
.Default(IC_CallOrUser);
}
// Anything else.
return IC_CallOrUser;
}