diff options
Diffstat (limited to 'clang/lib/CodeGen/CGExprCXX.cpp')
-rw-r--r-- | clang/lib/CodeGen/CGExprCXX.cpp | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/clang/lib/CodeGen/CGExprCXX.cpp b/clang/lib/CodeGen/CGExprCXX.cpp index 2b0938ab84b..3a2882e24b6 100644 --- a/clang/lib/CodeGen/CGExprCXX.cpp +++ b/clang/lib/CodeGen/CGExprCXX.cpp @@ -867,6 +867,8 @@ llvm::Value *CodeGenFunction::EmitDynamicCast(llvm::Value *V, ToVoid = true; } else { LTy = LTy->getPointerTo(); + + // FIXME: What if exceptions are disabled? ThrowOnBad = true; } @@ -933,15 +935,21 @@ llvm::Value *CodeGenFunction::EmitDynamicCast(llvm::Value *V, if (ThrowOnBad) { BadCastBlock = createBasicBlock(); - Builder.CreateCondBr(Builder.CreateIsNotNull(V), ContBlock, BadCastBlock); EmitBlock(BadCastBlock); - /// Call __cxa_bad_cast + /// Invoke __cxa_bad_cast ResultType = llvm::Type::getVoidTy(VMContext); const llvm::FunctionType *FBadTy; FBadTy = llvm::FunctionType::get(ResultType, false); llvm::Value *F = CGM.CreateRuntimeFunction(FBadTy, "__cxa_bad_cast"); - Builder.CreateCall(F)->setDoesNotReturn(); + if (llvm::BasicBlock *InvokeDest = getInvokeDest()) { + llvm::BasicBlock *Cont = createBasicBlock("invoke.cont"); + Builder.CreateInvoke(F, Cont, InvokeDest)->setDoesNotReturn(); + EmitBlock(Cont); + } else { + // FIXME: Does this ever make sense? + Builder.CreateCall(F)->setDoesNotReturn(); + } Builder.CreateUnreachable(); } } |