{
SDNode *myCALLSEQ_BEGIN = FindCallStartFromCallEnd(Node);
- // If the CALLSEQ_START node hasn't been legalized first, legalize it. This
- // will cause this node to be legalized as well as handling libcalls right.
+ // If the CALLSEQ_START node hasn't been legalized first, legalize it.
+ // This will cause this node to be legalized as well as handling libcalls
+ // right.
if (getLastCALLSEQ().getNode() != Node) {
LegalizeOp(SDValue(myCALLSEQ_BEGIN, 0));
DenseMap<SDValue, SDValue>::iterator I = LegalizedNodes.find(Op);
return CallInfo.first;
}
-/// ExpandLibCall - Generate a libcall taking the given operands as arguments
+/// ExpandLibCall - Generate a libcall taking the given operands as arguments
/// and returning a result of type RetVT.
SDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, EVT RetVT,
const SDValue *Ops, unsigned NumOps,
bool isSigned, DebugLoc dl) {
TargetLowering::ArgListTy Args;
Args.reserve(NumOps);
-
+
TargetLowering::ArgListEntry Entry;
for (unsigned i = 0; i != NumOps; ++i) {
Entry.Node = Ops[i];
}
SDValue Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC),
TLI.getPointerTy());
-
+
const Type *RetTy = RetVT.getTypeForEVT(*DAG.getContext());
std::pair<SDValue,SDValue> CallInfo =
TLI.LowerCallTo(DAG.getEntryNode(), RetTy, isSigned, !isSigned, false,
false, 0, TLI.getLibcallCallingConv(LC), false,
/*isReturnValueUsed=*/true,
Callee, Args, DAG, dl);
-
+
// Legalize the call sequence, starting with the chain. This will advance
// the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that
// was added by LowerCallTo (guaranteeing proper serialization of calls).
else if (WideVT == MVT::i128)
LC = RTLIB::MUL_I128;
assert(LC != RTLIB::UNKNOWN_LIBCALL && "Cannot expand this operation!");
-
- // The high part is obtained by SRA'ing all but one of the bits of low
+
+ // The high part is obtained by SRA'ing all but one of the bits of low
// part.
unsigned LoSize = VT.getSizeInBits();
SDValue HiLHS = DAG.getNode(ISD::SRA, dl, VT, RHS,
TopHalf = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, VT, Ret,
DAG.getIntPtrConstant(1));
}
-
+
if (isSigned) {
Tmp1 = DAG.getConstant(VT.getSizeInBits() - 1,
TLI.getShiftAmountTy(BottomHalf.getValueType()));
///
SelectionDAGLegalize(*this, OptLevel).LegalizeDAG();
}
-