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Modernize and comment; no functionality change.

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llvm-svn: 139470
This commit is contained in:
John McCall
2011-09-10 09:30:49 +00:00
parent 7f16c42b9e
commit 6acaef9fe8
1 changed files with 27 additions and 31 deletions
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58
clang/lib/CodeGen/CGObjC.cpp
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@@ -546,39 +546,35 @@ void CodeGenFunction::GenerateObjCGetter(ObjCImplementationDecl *IMP,
}
void CodeGenFunction::GenerateObjCAtomicSetterBody(ObjCMethodDecl *OMD,
ObjCIvarDecl *Ivar) {
ObjCIvarDecl *ivar) {
// objc_copyStruct (&structIvar, &Arg,
// sizeof (struct something), true, false);
llvm::Value *GetCopyStructFn =
CGM.getObjCRuntime().GetSetStructFunction();
CodeGenTypes &Types = CGM.getTypes();
CallArgList Args;
LValue LV = EmitLValueForIvar(TypeOfSelfObject(), LoadObjCSelf(), Ivar, 0);
RValue RV =
RValue::get(Builder.CreateBitCast(LV.getAddress(),
Types.ConvertType(getContext().VoidPtrTy)));
Args.add(RV, getContext().VoidPtrTy);
llvm::Value *Arg = LocalDeclMap[*OMD->param_begin()];
llvm::Value *ArgAsPtrTy =
Builder.CreateBitCast(Arg,
Types.ConvertType(getContext().VoidPtrTy));
RV = RValue::get(ArgAsPtrTy);
Args.add(RV, getContext().VoidPtrTy);
// sizeof (Type of Ivar)
CharUnits Size = getContext().getTypeSizeInChars(Ivar->getType());
llvm::Value *SizeVal =
llvm::ConstantInt::get(Types.ConvertType(getContext().LongTy),
Size.getQuantity());
Args.add(RValue::get(SizeVal), getContext().LongTy);
llvm::Value *True =
llvm::ConstantInt::get(Types.ConvertType(getContext().BoolTy), 1);
Args.add(RValue::get(True), getContext().BoolTy);
llvm::Value *False =
llvm::ConstantInt::get(Types.ConvertType(getContext().BoolTy), 0);
Args.add(RValue::get(False), getContext().BoolTy);
EmitCall(Types.getFunctionInfo(getContext().VoidTy, Args,
FunctionType::ExtInfo()),
GetCopyStructFn, ReturnValueSlot(), Args);
CallArgList args;
// The first argument is the address of the ivar.
llvm::Value *ivarAddr =
EmitLValueForIvar(TypeOfSelfObject(), LoadObjCSelf(), ivar, 0).getAddress();
ivarAddr = Builder.CreateBitCast(ivarAddr, Int8PtrTy);
args.add(RValue::get(ivarAddr), getContext().VoidPtrTy);
// The second argument is the address of the parameter variable.
llvm::Value *argAddr = LocalDeclMap[*OMD->param_begin()];
argAddr = Builder.CreateBitCast(argAddr, Int8PtrTy);
args.add(RValue::get(argAddr), getContext().VoidPtrTy);
// The third argument is the sizeof the type.
llvm::Value *size =
CGM.getSize(getContext().getTypeSizeInChars(ivar->getType()));
args.add(RValue::get(size), getContext().getSizeType());
// The fourth and fifth arguments are just flags.
args.add(RValue::get(Builder.getTrue()), getContext().BoolTy);
args.add(RValue::get(Builder.getFalse()), getContext().BoolTy);
llvm::Value *copyStructFn = CGM.getObjCRuntime().GetSetStructFunction();
EmitCall(getTypes().getFunctionInfo(getContext().VoidTy, args,
FunctionType::ExtInfo()),
copyStructFn, ReturnValueSlot(), args);
}
static bool hasTrivialAssignment(const ObjCPropertyImplDecl *PID) {