lib/CodeGen/CGObjCRuntime.cpp

53 LValue CGObjCRuntime::EmitValueForIvarAtOffset(CodeGen::CodeGenFunction &CGF,
62       CGF.CGM.getContext().getObjCObjectPointerType(InterfaceTy);
65   llvm::Type *LTy = CGF.CGM.getTypes().ConvertTypeForMem(IvarTy);
66   llvm::Value *V = CGF.Builder.CreateBitCast(BaseValue, CGF.Int8PtrTy);
67   V = CGF.Builder.CreateInBoundsGEP(CGF.Int8Ty, V, Offset, "add.ptr");
70     V = CGF.Builder.CreateBitCast(V, llvm::PointerType::getUnqual(LTy));
71     LValue LV = CGF.MakeNaturalAlignAddrLValue(V, IvarTy);
90       CGF.CGM.getContext().lookupFieldBitOffset(OID, nullptr, Ivar);
91   uint64_t BitOffset = FieldBitOffset % CGF.CGM.getContext().getCharWidth();
92   uint64_t AlignmentBits = CGF.CGM.getTarget().getCharAlign();
93   uint64_t BitFieldSize = Ivar->getBitWidthValue(CGF.getContext());
94   CharUnits StorageSize = CGF.CGM.getContext().toCharUnitsFromBits(
96   CharUnits Alignment = CGF.CGM.getContext().toCharUnitsFromBits(AlignmentBits);
104   CGBitFieldInfo *Info = new (CGF.CGM.getContext()) CGBitFieldInfo(
105     CGBitFieldInfo::MakeInfo(CGF.CGM.getTypes(), Ivar, BitOffset, BitFieldSize,
106                              CGF.CGM.getContext().toBits(StorageSize),
110   Addr = CGF.Builder.CreateElementBitCast(Addr,
111                                    llvm::Type::getIntNTy(CGF.getLLVMContext(),
134     void Emit(CodeGenFunction &CGF, Flags flags) override {
136         CGF.EmitRuntimeCallOrInvoke(Fn);
138         CGF.EmitNounwindRuntimeCall(Fn);
143 void CGObjCRuntime::EmitTryCatchStmt(CodeGenFunction &CGF,
151     Cont = CGF.getJumpDestInCurrentScope("eh.cont");
153   bool useFunclets = EHPersonality::get(CGF).usesFuncletPads();
158       FinallyInfo.enter(CGF, Finally->getFinallyBody(),
174       Handler.Block = CGF.createBasicBlock("catch");
189     EHCatchScope *Catch = CGF.EHStack.pushCatch(Handlers.size());
197         if (!CGF.CurSEHParent)
198             CGF.CurSEHParent = cast<NamedDecl>(CGF.CurFuncDecl);
201         HelperCGF.startOutlinedSEHHelper(CGF, /*isFilter*/false, FinallyBlock);
212         CGF.pushSEHCleanup(NormalAndEHCleanup, FinallyFunc);
217   CGF.EmitStmt(S.getTryBody());
221     CGF.popCatchScope();
224   CGBuilderTy::InsertPoint SavedIP = CGF.Builder.saveAndClearIP();
230     CGF.EmitBlock(Handler.Block);
232     SaveAndRestore<llvm::Instruction *> RestoreCurrentFuncletPad(CGF.CurrentFuncletPad);
235         CGF.CurrentFuncletPad = CPI;
236         CPI->setOperand(2, CGF.getExceptionSlot().getPointer());
238     llvm::Value *RawExn = CGF.getExceptionFromSlot();
243       Exn = CGF.EmitNounwindRuntimeCall(beginCatchFn, RawExn, "exn.adjusted");
245     CodeGenFunction::LexicalScope cleanups(CGF, Handler.Body->getSourceRange());
251       CGF.EHStack.pushCleanup<CallObjCEndCatch>(NormalAndEHCleanup,
258       llvm::Type *CatchType = CGF.ConvertType(CatchParam->getType());
259       llvm::Value *CastExn = CGF.Builder.CreateBitCast(Exn, CatchType);
261       CGF.EmitAutoVarDecl(*CatchParam);
262       EmitInitOfCatchParam(CGF, CastExn, CatchParam);
265         CGF.EHStack.pushCleanup<CatchRetScope>(NormalCleanup, CPI);
267     CGF.ObjCEHValueStack.push_back(Exn);
268     CGF.EmitStmt(Handler.Body);
269     CGF.ObjCEHValueStack.pop_back();
274     CGF.EmitBranchThroughCleanup(Cont);
278   CGF.Builder.restoreIP(SavedIP);
282     FinallyInfo.exit(CGF);
285     CGF.EmitBlock(Cont.getBlock());
288 void CGObjCRuntime::EmitInitOfCatchParam(CodeGenFunction &CGF,
292   Address paramAddr = CGF.GetAddrOfLocalVar(paramDecl);
296     exn = CGF.EmitARCRetainNonBlock(exn);
302     CGF.Builder.CreateStore(exn, paramAddr);
306     CGF.EmitARCInitWeak(paramAddr, exn);
319     void Emit(CodeGenFunction &CGF, Flags flags) override {
320       CGF.EmitNounwindRuntimeCall(SyncExitFn, SyncArg);
325 void CGObjCRuntime::EmitAtSynchronizedStmt(CodeGenFunction &CGF,
329   CodeGenFunction::RunCleanupsScope cleanups(CGF);
335   if (CGF.getLangOpts().ObjCAutoRefCount) {
336     lock = CGF.EmitARCRetainScalarExpr(lockExpr);
337     lock = CGF.EmitObjCConsumeObject(lockExpr->getType(), lock);
339     lock = CGF.EmitScalarExpr(lockExpr);
341   lock = CGF.Builder.CreateBitCast(lock, CGF.VoidPtrTy);
344   CGF.Builder.CreateCall(syncEnterFn, lock)->setDoesNotThrow();
347   CGF.EHStack.pushCleanup<CallSyncExit>(NormalAndEHCleanup, syncExitFn, lock);
350   CGF.EmitStmt(S.getSynchBody());