aboutsummaryrefslogtreecommitdiffstats
path: root/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
-rw-r--r--lib/CodeGen/SelectionDAG/SelectionDAG.cpp74
1 files changed, 40 insertions, 34 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 35707e8..5e30c25 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1917,7 +1917,8 @@ void SelectionDAG::ComputeMaskedBits(SDValue Op, APInt &KnownZero,
}
case ISD::LOAD: {
LoadSDNode *LD = cast<LoadSDNode>(Op);
- if (ISD::isZEXTLoad(Op.getNode())) {
+ // If this is a ZEXTLoad and we are looking at the loaded value.
+ if (ISD::isZEXTLoad(Op.getNode()) && Op.getResNo() == 0) {
EVT VT = LD->getMemoryVT();
unsigned MemBits = VT.getScalarType().getSizeInBits();
KnownZero |= APInt::getHighBitsSet(BitWidth, BitWidth - MemBits);
@@ -2287,17 +2288,20 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, unsigned Depth) const{
break;
}
- // Handle LOADX separately here. EXTLOAD case will fallthrough.
- if (LoadSDNode *LD = dyn_cast<LoadSDNode>(Op)) {
- unsigned ExtType = LD->getExtensionType();
- switch (ExtType) {
- default: break;
- case ISD::SEXTLOAD: // '17' bits known
- Tmp = LD->getMemoryVT().getScalarType().getSizeInBits();
- return VTBits-Tmp+1;
- case ISD::ZEXTLOAD: // '16' bits known
- Tmp = LD->getMemoryVT().getScalarType().getSizeInBits();
- return VTBits-Tmp;
+ // If we are looking at the loaded value of the SDNode.
+ if (Op.getResNo() == 0) {
+ // Handle LOADX separately here. EXTLOAD case will fallthrough.
+ if (LoadSDNode *LD = dyn_cast<LoadSDNode>(Op)) {
+ unsigned ExtType = LD->getExtensionType();
+ switch (ExtType) {
+ default: break;
+ case ISD::SEXTLOAD: // '17' bits known
+ Tmp = LD->getMemoryVT().getScalarType().getSizeInBits();
+ return VTBits-Tmp+1;
+ case ISD::ZEXTLOAD: // '16' bits known
+ Tmp = LD->getMemoryVT().getScalarType().getSizeInBits();
+ return VTBits-Tmp;
+ }
}
}
@@ -2781,7 +2785,7 @@ SDValue SelectionDAG::FoldConstantArithmetic(unsigned Opcode, EVT VT,
}
// Handle the scalar case first.
- if (Outputs.size() == 1)
+ if (Scalar1 && Scalar2)
return Outputs.back();
// Otherwise build a big vector out of the scalar elements we generated.
@@ -5248,14 +5252,14 @@ SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT) {
SDVTList VTs = getVTList(VT);
- return getMachineNode(Opcode, dl, VTs, 0, 0);
+ return getMachineNode(Opcode, dl, VTs, ArrayRef<SDValue>());
}
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT, SDValue Op1) {
SDVTList VTs = getVTList(VT);
SDValue Ops[] = { Op1 };
- return getMachineNode(Opcode, dl, VTs, Ops, array_lengthof(Ops));
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
@@ -5263,7 +5267,7 @@ SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT,
SDValue Op1, SDValue Op2) {
SDVTList VTs = getVTList(VT);
SDValue Ops[] = { Op1, Op2 };
- return getMachineNode(Opcode, dl, VTs, Ops, array_lengthof(Ops));
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
@@ -5271,20 +5275,20 @@ SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT,
SDValue Op1, SDValue Op2, SDValue Op3) {
SDVTList VTs = getVTList(VT);
SDValue Ops[] = { Op1, Op2, Op3 };
- return getMachineNode(Opcode, dl, VTs, Ops, array_lengthof(Ops));
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT,
- const SDValue *Ops, unsigned NumOps) {
+ ArrayRef<SDValue> Ops) {
SDVTList VTs = getVTList(VT);
- return getMachineNode(Opcode, dl, VTs, Ops, NumOps);
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1, EVT VT2) {
SDVTList VTs = getVTList(VT1, VT2);
- return getMachineNode(Opcode, dl, VTs, 0, 0);
+ return getMachineNode(Opcode, dl, VTs, ArrayRef<SDValue>());
}
MachineSDNode *
@@ -5292,7 +5296,7 @@ SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl,
EVT VT1, EVT VT2, SDValue Op1) {
SDVTList VTs = getVTList(VT1, VT2);
SDValue Ops[] = { Op1 };
- return getMachineNode(Opcode, dl, VTs, Ops, array_lengthof(Ops));
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
@@ -5300,7 +5304,7 @@ SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl,
EVT VT1, EVT VT2, SDValue Op1, SDValue Op2) {
SDVTList VTs = getVTList(VT1, VT2);
SDValue Ops[] = { Op1, Op2 };
- return getMachineNode(Opcode, dl, VTs, Ops, array_lengthof(Ops));
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
@@ -5309,15 +5313,15 @@ SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl,
SDValue Op2, SDValue Op3) {
SDVTList VTs = getVTList(VT1, VT2);
SDValue Ops[] = { Op1, Op2, Op3 };
- return getMachineNode(Opcode, dl, VTs, Ops, array_lengthof(Ops));
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl,
EVT VT1, EVT VT2,
- const SDValue *Ops, unsigned NumOps) {
+ ArrayRef<SDValue> Ops) {
SDVTList VTs = getVTList(VT1, VT2);
- return getMachineNode(Opcode, dl, VTs, Ops, NumOps);
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
@@ -5326,7 +5330,7 @@ SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl,
SDValue Op1, SDValue Op2) {
SDVTList VTs = getVTList(VT1, VT2, VT3);
SDValue Ops[] = { Op1, Op2 };
- return getMachineNode(Opcode, dl, VTs, Ops, array_lengthof(Ops));
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
@@ -5335,39 +5339,41 @@ SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl,
SDValue Op1, SDValue Op2, SDValue Op3) {
SDVTList VTs = getVTList(VT1, VT2, VT3);
SDValue Ops[] = { Op1, Op2, Op3 };
- return getMachineNode(Opcode, dl, VTs, Ops, array_lengthof(Ops));
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl,
EVT VT1, EVT VT2, EVT VT3,
- const SDValue *Ops, unsigned NumOps) {
+ ArrayRef<SDValue> Ops) {
SDVTList VTs = getVTList(VT1, VT2, VT3);
- return getMachineNode(Opcode, dl, VTs, Ops, NumOps);
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl, EVT VT1,
EVT VT2, EVT VT3, EVT VT4,
- const SDValue *Ops, unsigned NumOps) {
+ ArrayRef<SDValue> Ops) {
SDVTList VTs = getVTList(VT1, VT2, VT3, VT4);
- return getMachineNode(Opcode, dl, VTs, Ops, NumOps);
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc dl,
ArrayRef<EVT> ResultTys,
- const SDValue *Ops, unsigned NumOps) {
+ ArrayRef<SDValue> Ops) {
SDVTList VTs = getVTList(&ResultTys[0], ResultTys.size());
- return getMachineNode(Opcode, dl, VTs, Ops, NumOps);
+ return getMachineNode(Opcode, dl, VTs, Ops);
}
MachineSDNode *
SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc DL, SDVTList VTs,
- const SDValue *Ops, unsigned NumOps) {
+ ArrayRef<SDValue> OpsArray) {
bool DoCSE = VTs.VTs[VTs.NumVTs-1] != MVT::Glue;
MachineSDNode *N;
void *IP = 0;
+ const SDValue *Ops = OpsArray.data();
+ unsigned NumOps = OpsArray.size();
if (DoCSE) {
FoldingSetNodeID ID;
generated by cgit v1.1 at 2025-11-11 06:25:58 +0000