Automatic Reference Counting.
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.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 09741df..7321ac4 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -131,6 +131,71 @@
/// The alignment of a pointer into the generic address space.
unsigned char PointerAlignInBytes;
};
+
+struct RREntrypoints {
+ RREntrypoints() { memset(this, 0, sizeof(*this)); }
+ /// void objc_autoreleasePoolPop(void*);
+ llvm::Constant *objc_autoreleasePoolPop;
+
+ /// void *objc_autoreleasePoolPush(void);
+ llvm::Constant *objc_autoreleasePoolPush;
+};
+
+struct ARCEntrypoints {
+ ARCEntrypoints() { memset(this, 0, sizeof(*this)); }
+
+ /// id objc_autorelease(id);
+ llvm::Constant *objc_autorelease;
+
+ /// id objc_autoreleaseReturnValue(id);
+ llvm::Constant *objc_autoreleaseReturnValue;
+
+ /// void objc_copyWeak(id *dest, id *src);
+ llvm::Constant *objc_copyWeak;
+
+ /// void objc_destroyWeak(id*);
+ llvm::Constant *objc_destroyWeak;
+
+ /// id objc_initWeak(id*, id);
+ llvm::Constant *objc_initWeak;
+
+ /// id objc_loadWeak(id*);
+ llvm::Constant *objc_loadWeak;
+
+ /// id objc_loadWeakRetained(id*);
+ llvm::Constant *objc_loadWeakRetained;
+
+ /// void objc_moveWeak(id *dest, id *src);
+ llvm::Constant *objc_moveWeak;
+
+ /// id objc_retain(id);
+ llvm::Constant *objc_retain;
+
+ /// id objc_retainAutorelease(id);
+ llvm::Constant *objc_retainAutorelease;
+
+ /// id objc_retainAutoreleaseReturnValue(id);
+ llvm::Constant *objc_retainAutoreleaseReturnValue;
+
+ /// id objc_retainAutoreleasedReturnValue(id);
+ llvm::Constant *objc_retainAutoreleasedReturnValue;
+
+ /// id objc_retainBlock(id);
+ llvm::Constant *objc_retainBlock;
+
+ /// void objc_release(id);
+ llvm::Constant *objc_release;
+
+ /// id objc_storeStrong(id*, id);
+ llvm::Constant *objc_storeStrong;
+
+ /// id objc_storeWeak(id*, id);
+ llvm::Constant *objc_storeWeak;
+
+ /// A void(void) inline asm to use to mark that the return value of
+ /// a call will be immediately retain.
+ llvm::InlineAsm *retainAutoreleasedReturnValueMarker;
+};
/// CodeGenModule - This class organizes the cross-function state that is used
/// while generating LLVM code.
@@ -157,6 +222,8 @@
CGObjCRuntime* Runtime;
CGDebugInfo* DebugInfo;
+ ARCEntrypoints *ARCData;
+ RREntrypoints *RRData;
// WeakRefReferences - A set of references that have only been seen via
// a weakref so far. This is used to remove the weak of the reference if we ever
@@ -275,6 +342,16 @@
/// getCXXABI() - Return a reference to the configured C++ ABI.
CGCXXABI &getCXXABI() { return ABI; }
+ ARCEntrypoints &getARCEntrypoints() const {
+ assert(getLangOptions().ObjCAutoRefCount && ARCData != 0);
+ return *ARCData;
+ }
+
+ RREntrypoints &getRREntrypoints() const {
+ assert(RRData != 0);
+ return *RRData;
+ }
+
llvm::Value *getStaticLocalDeclAddress(const VarDecl *VD) {
return StaticLocalDeclMap[VD];
}
@@ -474,7 +551,7 @@
/// created).
llvm::Constant *GetAddrOfConstantCString(const std::string &str,
const char *GlobalName=0);
-
+
/// GetAddrOfCXXConstructor - Return the address of the constructor of the
/// given type.
llvm::GlobalValue *GetAddrOfCXXConstructor(const CXXConstructorDecl *ctor,
@@ -514,7 +591,9 @@
/// CreateRuntimeFunction - Create a new runtime function with the specified
/// type and name.
llvm::Constant *CreateRuntimeFunction(const llvm::FunctionType *Ty,
- llvm::StringRef Name);
+ llvm::StringRef Name,
+ llvm::Attributes ExtraAttrs =
+ llvm::Attribute::None);
/// CreateRuntimeVariable - Create a new runtime global variable with the
/// specified type and name.
llvm::Constant *CreateRuntimeVariable(const llvm::Type *Ty,
@@ -642,7 +721,9 @@
llvm::Constant *GetOrCreateLLVMFunction(llvm::StringRef MangledName,
const llvm::Type *Ty,
GlobalDecl D,
- bool ForVTable);
+ bool ForVTable,
+ llvm::Attributes ExtraAttrs =
+ llvm::Attribute::None);
llvm::Constant *GetOrCreateLLVMGlobal(llvm::StringRef MangledName,
const llvm::PointerType *PTy,
const VarDecl *D,