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Diffstat (limited to 'llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp')
-rw-r--r--llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp65
1 files changed, 33 insertions, 32 deletions
diff --git a/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp b/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
index 5af35487d6c..7de86413de1 100644
--- a/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
@@ -236,7 +236,7 @@ void MipsSEDAGToDAGISel::processFunctionAfterISel(MachineFunction &MF) {
}
}
-SDNode *MipsSEDAGToDAGISel::selectAddESubE(unsigned MOp, SDValue InFlag,
+void MipsSEDAGToDAGISel::selectAddESubE(unsigned MOp, SDValue InFlag,
SDValue CmpLHS, SDLoc DL,
SDNode *Node) const {
unsigned Opc = InFlag.getOpcode(); (void)Opc;
@@ -275,8 +275,7 @@ SDNode *MipsSEDAGToDAGISel::selectAddESubE(unsigned MOp, SDValue InFlag,
if (!C || C->getZExtValue())
AddCarry = CurDAG->getMachineNode(ADDuOp, DL, VT, SDValue(Carry, 0), RHS);
- return CurDAG->SelectNodeTo(Node, MOp, VT, MVT::Glue, LHS,
- SDValue(AddCarry, 0));
+ CurDAG->SelectNodeTo(Node, MOp, VT, MVT::Glue, LHS, SDValue(AddCarry, 0));
}
/// Match frameindex
@@ -706,7 +705,7 @@ bool MipsSEDAGToDAGISel::selectVSplatUimmInvPow2(SDValue N,
return false;
}
-std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
+bool MipsSEDAGToDAGISel::trySelect(SDNode *Node) {
unsigned Opcode = Node->getOpcode();
SDLoc DL(Node);
@@ -714,16 +713,14 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
// Instruction Selection not handled by the auto-generated
// tablegen selection should be handled here.
///
- SDNode *Result;
-
switch(Opcode) {
default: break;
case ISD::SUBE: {
SDValue InFlag = Node->getOperand(2);
unsigned Opc = Subtarget->isGP64bit() ? Mips::DSUBu : Mips::SUBu;
- Result = selectAddESubE(Opc, InFlag, InFlag.getOperand(0), DL, Node);
- return std::make_pair(true, Result);
+ selectAddESubE(Opc, InFlag, InFlag.getOperand(0), DL, Node);
+ return true;
}
case ISD::ADDE: {
@@ -731,8 +728,8 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
break;
SDValue InFlag = Node->getOperand(2);
unsigned Opc = Subtarget->isGP64bit() ? Mips::DADDu : Mips::ADDu;
- Result = selectAddESubE(Opc, InFlag, InFlag.getValue(0), DL, Node);
- return std::make_pair(true, Result);
+ selectAddESubE(Opc, InFlag, InFlag.getValue(0), DL, Node);
+ return true;
}
case ISD::ConstantFP: {
@@ -741,20 +738,20 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
if (Subtarget->isGP64bit()) {
SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), DL,
Mips::ZERO_64, MVT::i64);
- Result = CurDAG->getMachineNode(Mips::DMTC1, DL, MVT::f64, Zero);
+ ReplaceNode(Node,
+ CurDAG->getMachineNode(Mips::DMTC1, DL, MVT::f64, Zero));
} else if (Subtarget->isFP64bit()) {
SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), DL,
Mips::ZERO, MVT::i32);
- Result = CurDAG->getMachineNode(Mips::BuildPairF64_64, DL, MVT::f64,
- Zero, Zero);
+ ReplaceNode(Node, CurDAG->getMachineNode(Mips::BuildPairF64_64, DL,
+ MVT::f64, Zero, Zero));
} else {
SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), DL,
Mips::ZERO, MVT::i32);
- Result = CurDAG->getMachineNode(Mips::BuildPairF64, DL, MVT::f64, Zero,
- Zero);
+ ReplaceNode(Node, CurDAG->getMachineNode(Mips::BuildPairF64, DL,
+ MVT::f64, Zero, Zero));
}
-
- return std::make_pair(true, Result);
+ return true;
}
break;
}
@@ -797,7 +794,8 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
SDValue(RegOpnd, 0), ImmOpnd);
}
- return std::make_pair(true, RegOpnd);
+ ReplaceNode(Node, RegOpnd);
+ return true;
}
case ISD::INTRINSIC_W_CHAIN: {
@@ -810,7 +808,8 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
SDValue RegIdx = Node->getOperand(2);
SDValue Reg = CurDAG->getCopyFromReg(ChainIn, DL,
getMSACtrlReg(RegIdx), MVT::i32);
- return std::make_pair(true, Reg.getNode());
+ ReplaceNode(Node, Reg.getNode());
+ return true;
}
}
break;
@@ -824,10 +823,10 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
case Intrinsic::mips_move_v:
// Like an assignment but will always produce a move.v even if
// unnecessary.
- return std::make_pair(true,
- CurDAG->getMachineNode(Mips::MOVE_V, DL,
- Node->getValueType(0),
- Node->getOperand(1)));
+ ReplaceNode(Node, CurDAG->getMachineNode(Mips::MOVE_V, DL,
+ Node->getValueType(0),
+ Node->getOperand(1)));
+ return true;
}
break;
}
@@ -843,7 +842,8 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
SDValue Value = Node->getOperand(3);
SDValue ChainOut = CurDAG->getCopyToReg(ChainIn, DL,
getMSACtrlReg(RegIdx), Value);
- return std::make_pair(true, ChainOut.getNode());
+ ReplaceNode(Node, ChainOut.getNode());
+ return true;
}
}
break;
@@ -868,8 +868,8 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
SDValue Chain = CurDAG->getCopyToReg(CurDAG->getEntryNode(), DL, DestReg,
SDValue(Rdhwr, 0));
SDValue ResNode = CurDAG->getCopyFromReg(Chain, DL, DestReg, PtrVT);
- ReplaceUses(SDValue(Node, 0), ResNode);
- return std::make_pair(true, ResNode.getNode());
+ ReplaceNode(Node, ResNode.getNode());
+ return true;
}
case ISD::BUILD_VECTOR: {
@@ -894,16 +894,16 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
EVT ViaVecTy;
if (!Subtarget->hasMSA() || !BVN->getValueType(0).is128BitVector())
- return std::make_pair(false, nullptr);
+ return false;
if (!BVN->isConstantSplat(SplatValue, SplatUndef, SplatBitSize,
HasAnyUndefs, 8,
!Subtarget->isLittle()))
- return std::make_pair(false, nullptr);
+ return false;
switch (SplatBitSize) {
default:
- return std::make_pair(false, nullptr);
+ return false;
case 8:
LdiOp = Mips::LDI_B;
ViaVecTy = MVT::v16i8;
@@ -923,7 +923,7 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
}
if (!SplatValue.isSignedIntN(10))
- return std::make_pair(false, nullptr);
+ return false;
SDValue Imm = CurDAG->getTargetConstant(SplatValue, DL,
ViaVecTy.getVectorElementType());
@@ -944,12 +944,13 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
MVT::i32));
}
- return std::make_pair(true, Res);
+ ReplaceNode(Node, Res);
+ return true;
}
}
- return std::make_pair(false, nullptr);
+ return false;
}
bool MipsSEDAGToDAGISel::
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