maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

SDAG: Use an Optional<> instead of a sigil value. NFC 

This just makes it a bit more clear that we don't intend to use a
deleted node for anything here.

llvm-svn: 270931
This commit is contained in:
Justin Bogner 2016-05-26 22:29:34 +00:00
parent 753279e054
commit c04a76c176
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@ -128,7 +128,7 @@ static SDValue getCopyFromParts(SelectionDAG &DAG, SDLoc DL,
const SDValue *Parts,
unsigned NumParts, MVT PartVT, EVT ValueVT,
const Value *V,
ISD::NodeType AssertOp = ISD::DELETED_NODE) {
Optional<ISD::NodeType> AssertOp = None) {
if (ValueVT.isVector())
return getCopyFromPartsVector(DAG, DL, Parts, NumParts,
PartVT, ValueVT, V);
@ -233,8 +233,8 @@ static SDValue getCopyFromParts(SelectionDAG &DAG, SDLoc DL,
// For a truncate, see if we have any information to
// indicate whether the truncated bits will always be
// zero or sign-extension.
if (AssertOp != ISD::DELETED_NODE)
Val = DAG.getNode(AssertOp, DL, PartEVT, Val,
if (AssertOp.hasValue())
Val = DAG.getNode(*AssertOp, DL, PartEVT, Val,
DAG.getValueType(ValueVT));
return DAG.getNode(ISD::TRUNCATE, DL, ValueVT, Val);
}
@ -7710,7 +7710,7 @@ TargetLowering::LowerCallTo(TargetLowering::CallLoweringInfo &CLI) const {
} else {
// Collect the legal value parts into potentially illegal values
// that correspond to the original function's return values.
ISD::NodeType AssertOp = ISD::DELETED_NODE;
Optional<ISD::NodeType> AssertOp;
if (CLI.RetSExt)
AssertOp = ISD::AssertSext;
else if (CLI.RetZExt)
@ -7933,7 +7933,7 @@ void SelectionDAGISel::LowerArguments(const Function &F) {
PointerType::getUnqual(F.getReturnType()), ValueVTs);
MVT VT = ValueVTs[0].getSimpleVT();
MVT RegVT = TLI->getRegisterType(*CurDAG->getContext(), VT);
ISD::NodeType AssertOp = ISD::DELETED_NODE;
Optional<ISD::NodeType> AssertOp = None;
SDValue ArgValue = getCopyFromParts(DAG, dl, &InVals[0], 1,
RegVT, VT, nullptr, AssertOp);
@ -7974,7 +7974,7 @@ void SelectionDAGISel::LowerArguments(const Function &F) {
unsigned NumParts = TLI->getNumRegisters(*CurDAG->getContext(), VT);
if (!I->use_empty()) {
ISD::NodeType AssertOp = ISD::DELETED_NODE;
Optional<ISD::NodeType> AssertOp;
if (F.getAttributes().hasAttribute(Idx, Attribute::SExt))
AssertOp = ISD::AssertSext;
else if (F.getAttributes().hasAttribute(Idx, Attribute::ZExt))