void dump() {
dbgs() << "X86ISelAddressMode " << this << '\n';
dbgs() << "Base_Reg ";
- if (Base_Reg.getNode() != 0)
+ if (Base_Reg.getNode())
Base_Reg.getNode()->dump();
else
dbgs() << "nul";
dbgs() << " Base.FrameIndex " << Base_FrameIndex << '\n'
<< " Scale" << Scale << '\n'
<< "IndexReg ";
- if (IndexReg.getNode() != 0)
+ if (IndexReg.getNode())
IndexReg.getNode()->dump();
else
dbgs() << "nul";
return "X86 DAG->DAG Instruction Selection";
}
+ bool runOnMachineFunction(MachineFunction &MF) override {
+ // Reset the subtarget each time through.
+ Subtarget = &TM.getSubtarget<X86Subtarget>();
+ SelectionDAGISel::runOnMachineFunction(MF);
+ return true;
+ }
+
void EmitFunctionEntryCode() override;
bool IsProfitableToFold(SDValue N, SDNode *U, SDNode *Root) const override;
private:
SDNode *Select(SDNode *N) override;
SDNode *SelectGather(SDNode *N, unsigned Opc);
- SDNode *SelectAtomic64(SDNode *Node, unsigned Opc);
SDNode *SelectAtomicLoadArith(SDNode *Node, MVT NVT);
bool FoldOffsetIntoAddress(uint64_t Offset, X86ISelAddressMode &AM);
/// getInstrInfo - Return a reference to the TargetInstrInfo, casted
/// to the target-specific type.
const X86InstrInfo *getInstrInfo() const {
- return getTargetMachine().getInstrInfo();
+ return getTargetMachine().getSubtargetImpl()->getInstrInfo();
}
};
}
else
Ops.push_back(Chain.getOperand(i));
SDValue NewChain =
- CurDAG->getNode(ISD::TokenFactor, SDLoc(Load),
- MVT::Other, &Ops[0], Ops.size());
+ CurDAG->getNode(ISD::TokenFactor, SDLoc(Load), MVT::Other, Ops);
Ops.clear();
Ops.push_back(NewChain);
}
for (unsigned i = 1, e = OrigChain.getNumOperands(); i != e; ++i)
Ops.push_back(OrigChain.getOperand(i));
- CurDAG->UpdateNodeOperands(OrigChain.getNode(), &Ops[0], Ops.size());
+ CurDAG->UpdateNodeOperands(OrigChain.getNode(), Ops);
CurDAG->UpdateNodeOperands(Load.getNode(), Call.getOperand(0),
Load.getOperand(1), Load.getOperand(2));
Ops.push_back(SDValue(Load.getNode(), 1));
for (unsigned i = 1, e = NumOps; i != e; ++i)
Ops.push_back(Call.getOperand(i));
- CurDAG->UpdateNodeOperands(Call.getNode(), &Ops[0], NumOps);
+ CurDAG->UpdateNodeOperands(Call.getNode(), Ops);
}
/// isCalleeLoad - Return true if call address is a load and it can be
false, false, 0);
SDValue Result = CurDAG->getExtLoad(ISD::EXTLOAD, dl, DstVT, Store, MemTmp,
MachinePointerInfo(),
- MemVT, false, false, 0);
+ MemVT, false, false, false, 0);
// We're about to replace all uses of the FP_ROUND/FP_EXTEND with the
// extload we created. This will cause general havok on the dag because
/// the main function.
void X86DAGToDAGISel::EmitSpecialCodeForMain(MachineBasicBlock *BB,
MachineFrameInfo *MFI) {
- const TargetInstrInfo *TII = TM.getInstrInfo();
+ const TargetInstrInfo *TII = TM.getSubtargetImpl()->getInstrInfo();
if (Subtarget->isTargetCygMing()) {
unsigned CallOp =
Subtarget->is64Bit() ? X86::CALL64pcrel32 : X86::CALLpcrel32;
APInt MaskedHighBits =
APInt::getHighBitsSet(X.getSimpleValueType().getSizeInBits(), MaskLZ);
APInt KnownZero, KnownOne;
- DAG.ComputeMaskedBits(X, KnownZero, KnownOne);
+ DAG.computeKnownBits(X, KnownZero, KnownOne);
if (MaskedHighBits != KnownZero) return true;
// We've identified a pattern that can be transformed into a single shift
RegisterSDNode *RN = dyn_cast<RegisterSDNode>(Base);
if (RN && RN->getReg() == 0)
Base = CurDAG->getRegister(0, MVT::i64);
- else if (Base.getValueType() == MVT::i32 && !dyn_cast<FrameIndexSDNode>(N)) {
+ else if (Base.getValueType() == MVT::i32 && !dyn_cast<FrameIndexSDNode>(Base)) {
// Base could already be %rip, particularly in the x32 ABI.
Base = SDValue(CurDAG->getMachineNode(
TargetOpcode::SUBREG_TO_REG, DL, MVT::i64,
getTargetLowering()->getPointerTy()).getNode();
}
-SDNode *X86DAGToDAGISel::SelectAtomic64(SDNode *Node, unsigned Opc) {
- SDValue Chain = Node->getOperand(0);
- SDValue In1 = Node->getOperand(1);
- SDValue In2L = Node->getOperand(2);
- SDValue In2H = Node->getOperand(3);
-
- SDValue Tmp0, Tmp1, Tmp2, Tmp3, Tmp4;
- if (!SelectAddr(Node, In1, Tmp0, Tmp1, Tmp2, Tmp3, Tmp4))
- return nullptr;
- MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
- MemOp[0] = cast<MemSDNode>(Node)->getMemOperand();
- const SDValue Ops[] = { Tmp0, Tmp1, Tmp2, Tmp3, Tmp4, In2L, In2H, Chain};
- SDNode *ResNode = CurDAG->getMachineNode(Opc, SDLoc(Node),
- MVT::i32, MVT::i32, MVT::Other, Ops);
- cast<MachineSDNode>(ResNode)->setMemRefs(MemOp, MemOp + 1);
- return ResNode;
-}
-
/// Atomic opcode table
///
enum AtomicOpc {
}
cast<MachineSDNode>(Ret)->setMemRefs(MemOp, MemOp + 1);
SDValue RetVals[] = { Undef, Ret };
- return CurDAG->getMergeValues(RetVals, 2, dl).getNode();
+ return CurDAG->getMergeValues(RetVals, dl).getNode();
}
/// HasNoSignedComparisonUses - Test whether the given X86ISD::CMP node has
// Make a new TokenFactor with all the other input chains except
// for the load.
InputChain = CurDAG->getNode(ISD::TokenFactor, SDLoc(Chain),
- MVT::Other, &ChainOps[0], ChainOps.size());
+ MVT::Other, ChainOps);
}
if (!ChainCheck)
return false;
return getGlobalBaseReg();
- case X86ISD::ATOMOR64_DAG:
- case X86ISD::ATOMXOR64_DAG:
- case X86ISD::ATOMADD64_DAG:
- case X86ISD::ATOMSUB64_DAG:
- case X86ISD::ATOMNAND64_DAG:
- case X86ISD::ATOMAND64_DAG:
- case X86ISD::ATOMMAX64_DAG:
- case X86ISD::ATOMMIN64_DAG:
- case X86ISD::ATOMUMAX64_DAG:
- case X86ISD::ATOMUMIN64_DAG:
- case X86ISD::ATOMSWAP64_DAG: {
- unsigned Opc;
- switch (Opcode) {
- default: llvm_unreachable("Impossible opcode");
- case X86ISD::ATOMOR64_DAG: Opc = X86::ATOMOR6432; break;
- case X86ISD::ATOMXOR64_DAG: Opc = X86::ATOMXOR6432; break;
- case X86ISD::ATOMADD64_DAG: Opc = X86::ATOMADD6432; break;
- case X86ISD::ATOMSUB64_DAG: Opc = X86::ATOMSUB6432; break;
- case X86ISD::ATOMNAND64_DAG: Opc = X86::ATOMNAND6432; break;
- case X86ISD::ATOMAND64_DAG: Opc = X86::ATOMAND6432; break;
- case X86ISD::ATOMMAX64_DAG: Opc = X86::ATOMMAX6432; break;
- case X86ISD::ATOMMIN64_DAG: Opc = X86::ATOMMIN6432; break;
- case X86ISD::ATOMUMAX64_DAG: Opc = X86::ATOMUMAX6432; break;
- case X86ISD::ATOMUMIN64_DAG: Opc = X86::ATOMUMIN6432; break;
- case X86ISD::ATOMSWAP64_DAG: Opc = X86::ATOMSWAP6432; break;
- }
- SDNode *RetVal = SelectAtomic64(Node, Opc);
- if (RetVal)
- return RetVal;
- break;
- }
-
case ISD::ATOMIC_LOAD_XOR:
case ISD::ATOMIC_LOAD_AND:
case ISD::ATOMIC_LOAD_OR:
SDValue N0 = Node->getOperand(0);
SDValue N1 = Node->getOperand(1);
- // Look for (X86cmp (and $op, $imm), 0) and see if we can convert it to
- // use a smaller encoding.
if (N0.getOpcode() == ISD::TRUNCATE && N0.hasOneUse() &&
- HasNoSignedComparisonUses(Node))
- // Look past the truncate if CMP is the only use of it.
+ HasNoSignedComparisonUses(Node)) {
+ // Look for (X86cmp (truncate $op, i1), 0) and try to convert to a
+ // smaller encoding
+ if (Opcode == X86ISD::CMP && N0.getValueType() == MVT::i1 &&
+ X86::isZeroNode(N1)) {
+ SDValue Reg = N0.getOperand(0);
+ SDValue Imm = CurDAG->getTargetConstant(1, MVT::i8);
+
+ // Emit testb
+ if (Reg.getScalarValueSizeInBits() > 8)
+ Reg = CurDAG->getTargetExtractSubreg(X86::sub_8bit, dl, MVT::i8, Reg);
+ // Emit a testb.
+ SDNode *NewNode = CurDAG->getMachineNode(X86::TEST8ri, dl, MVT::i32,
+ Reg, Imm);
+ ReplaceUses(SDValue(Node, 0), SDValue(NewNode, 0));
+ return nullptr;
+ }
+
N0 = N0.getOperand(0);
+ }
+ // Look for (X86cmp (and $op, $imm), 0) and see if we can convert it to
+ // use a smaller encoding.
+ // Look past the truncate if CMP is the only use of it.
if ((N0.getNode()->getOpcode() == ISD::AND ||
(N0.getResNo() == 0 && N0.getNode()->getOpcode() == X86ISD::AND)) &&
N0.getNode()->hasOneUse() &&
SDNode *ResNode = SelectCode(Node);
DEBUG(dbgs() << "=> ";
- if (ResNode == NULL || ResNode == Node)
+ if (ResNode == nullptr || ResNode == Node)
Node->dump(CurDAG);
else
ResNode->dump(CurDAG);
projects / oota-llvm.git / blobdiff