CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

1930       F->getAttributes().hasAttrSomewhere(Attribute::SwiftError)) {
1931     assert(SwiftError.getFunctionArg() && "Need a swift error argument");
1940         DAG.getRegister(SwiftError.getOrCreateVRegUseAt(
1941                             &I, FuncInfo.MBB, SwiftError.getFunctionArg()),
4181       SwiftError.getOrCreateVRegDefAt(&I, FuncInfo.MBB, I.getPointerOperand());
4219       SwiftError.getOrCreateVRegUseAt(&I, FuncInfo.MBB, SV), ValueVTs[0]);
7174         Caller->getAttributes().hasAttrSomewhere(Attribute::SwiftError))
7198           SwiftError.getOrCreateVRegUseAt(CS.getInstruction(), FuncInfo.MBB, V),
7252     Register VReg = SwiftError.getOrCreateVRegDefAt(
9715       if (Arg.hasAttribute(Attribute::SwiftError))
9860         Arg.hasAttribute(Attribute::SwiftError);
9932         SwiftError->setCurrentVReg(FuncInfo->MBB, SwiftError->getFunctionArg(),