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Automatic Reference Counting.

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Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103
This commit is contained in:
John McCall
2011-06-15 23:02:42 +00:00
parent ce45f88e45
commit 31168b077c
198 changed files with 13874 additions and 1099 deletions
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21
clang/lib/CodeGen/CodeGenModule.cpp
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@@ -64,7 +64,7 @@ CodeGenModule::CodeGenModule(ASTContext &C, const CodeGenOptions &CGO,
ABI(createCXXABI(*this)),
Types(C, M, TD, getTargetCodeGenInfo().getABIInfo(), ABI),
TBAA(0),
VTables(*this), Runtime(0), DebugInfo(0),
VTables(*this), Runtime(0), DebugInfo(0), ARCData(0), RRData(0),
CFConstantStringClassRef(0), ConstantStringClassRef(0),
VMContext(M.getContext()),
NSConcreteGlobalBlockDecl(0), NSConcreteStackBlockDecl(0),
@@ -88,6 +88,10 @@ CodeGenModule::CodeGenModule(ASTContext &C, const CodeGenOptions &CGO,
Block.GlobalUniqueCount = 0;
if (C.getLangOptions().ObjCAutoRefCount)
ARCData = new ARCEntrypoints();
RRData = new RREntrypoints();
// Initialize the type cache.
llvm::LLVMContext &LLVMContext = M.getContext();
VoidTy = llvm::Type::getVoidTy(LLVMContext);
@@ -108,6 +112,8 @@ CodeGenModule::~CodeGenModule() {
delete &ABI;
delete TBAA;
delete DebugInfo;
delete ARCData;
delete RRData;
}
void CodeGenModule::createObjCRuntime() {
@@ -830,7 +836,8 @@ void CodeGenModule::EmitGlobalDefinition(GlobalDecl GD) {
llvm::Constant *
CodeGenModule::GetOrCreateLLVMFunction(llvm::StringRef MangledName,
const llvm::Type *Ty,
GlobalDecl D, bool ForVTable) {
GlobalDecl D, bool ForVTable,
llvm::Attributes ExtraAttrs) {
// Lookup the entry, lazily creating it if necessary.
llvm::GlobalValue *Entry = GetGlobalValue(MangledName);
if (Entry) {
@@ -869,6 +876,8 @@ CodeGenModule::GetOrCreateLLVMFunction(llvm::StringRef MangledName,
assert(F->getName() == MangledName && "name was uniqued!");
if (D.getDecl())
SetFunctionAttributes(D, F, IsIncompleteFunction);
if (ExtraAttrs != llvm::Attribute::None)
F->addFnAttr(ExtraAttrs);
// This is the first use or definition of a mangled name. If there is a
// deferred decl with this name, remember that we need to emit it at the end
@@ -937,8 +946,10 @@ llvm::Constant *CodeGenModule::GetAddrOfFunction(GlobalDecl GD,
/// type and name.
llvm::Constant *
CodeGenModule::CreateRuntimeFunction(const llvm::FunctionType *FTy,
llvm::StringRef Name) {
return GetOrCreateLLVMFunction(Name, FTy, GlobalDecl(), /*ForVTable=*/false);
llvm::StringRef Name,
llvm::Attributes ExtraAttrs) {
return GetOrCreateLLVMFunction(Name, FTy, GlobalDecl(), /*ForVTable=*/false,
ExtraAttrs);
}
static bool DeclIsConstantGlobal(ASTContext &Context, const VarDecl *D,
@@ -1997,6 +2008,7 @@ void CodeGenModule::EmitObjCIvarInitializations(ObjCImplementationDecl *D) {
false, true, false, ObjCMethodDecl::Required);
D->addInstanceMethod(DTORMethod);
CodeGenFunction(*this).GenerateObjCCtorDtorMethod(D, DTORMethod, false);
D->setHasCXXStructors(true);
}
// If the implementation doesn't have any ivar initializers, we don't need
@@ -2015,6 +2027,7 @@ void CodeGenModule::EmitObjCIvarInitializations(ObjCImplementationDecl *D) {
ObjCMethodDecl::Required);
D->addInstanceMethod(CTORMethod);
CodeGenFunction(*this).GenerateObjCCtorDtorMethod(D, CTORMethod, true);
D->setHasCXXStructors(true);
}
/// EmitNamespace - Emit all declarations in a namespace.