/// Subtarget - Keep a pointer to the MipsSubtarget around so that we can
/// make the right decision when generating code for different targets.
const MipsSubtarget &Subtarget;
-
+
public:
explicit MipsDAGToDAGISel(MipsTargetMachine &tm) :
SelectionDAGISel(tm),
TM(tm), Subtarget(tm.getSubtarget<MipsSubtarget>()) {}
-
+
// Pass Name
virtual const char *getPassName() const {
return "MIPS DAG->DAG Pattern Instruction Selection";
- }
-
+ }
-private:
+
+private:
// Include the pieces autogenerated from the target description.
#include "MipsGenDAGISel.inc"
Offset = CurDAG->getTargetConstant(0, MVT::i32);
return true;
}
-
+
// on PIC code Load GA
if (TM.getRelocationModel() == Reloc::PIC_) {
- if ((Addr.getOpcode() == ISD::TargetGlobalAddress) ||
- (Addr.getOpcode() == ISD::TargetConstantPool) ||
+ if ((Addr.getOpcode() == ISD::TargetGlobalAddress) ||
+ (Addr.getOpcode() == ISD::TargetConstantPool) ||
(Addr.getOpcode() == ISD::TargetJumpTable)){
Base = CurDAG->getRegister(Mips::GP, MVT::i32);
Offset = Addr;
if ((Addr.getOpcode() == ISD::TargetExternalSymbol ||
Addr.getOpcode() == ISD::TargetGlobalAddress))
return false;
- }
-
+ }
+
// Operand is a result from an ADD.
if (Addr.getOpcode() == ISD::ADD) {
if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1))) {
// Generate:
// lui $2, %hi($CPI1_0)
// lwc1 $f0, %lo($CPI1_0)($2)
- if ((Addr.getOperand(0).getOpcode() == MipsISD::Hi ||
+ if ((Addr.getOperand(0).getOpcode() == MipsISD::Hi ||
Addr.getOperand(0).getOpcode() == ISD::LOAD) &&
Addr.getOperand(1).getOpcode() == MipsISD::Lo) {
- SDValue LoVal = Addr.getOperand(1);
+ SDValue LoVal = Addr.getOperand(1);
if (dyn_cast<ConstantPoolSDNode>(LoVal.getOperand(0))) {
Base = Addr.getOperand(0);
Offset = LoVal.getOperand(0);
}
SDNode *MipsDAGToDAGISel::SelectLoadFp64(SDNode *N) {
- MVT::SimpleValueType NVT =
+ MVT::SimpleValueType NVT =
N->getValueType(0).getSimpleVT().SimpleTy;
if (!Subtarget.isMips1() || NVT != MVT::f64)
MemRefs0[0] = cast<MemSDNode>(N)->getMemOperand();
DebugLoc dl = N->getDebugLoc();
- // The second load should start after for 4 bytes.
+ // The second load should start after for 4 bytes.
if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Offset0))
Offset1 = CurDAG->getTargetConstant(C->getSExtValue()+4, MVT::i32);
else if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Offset0))
- Offset1 = CurDAG->getTargetConstantPool(CP->getConstVal(),
- MVT::i32,
- CP->getAlignment(),
- CP->getOffset()+4,
+ Offset1 = CurDAG->getTargetConstantPool(CP->getConstVal(),
+ MVT::i32,
+ CP->getAlignment(),
+ CP->getOffset()+4,
CP->getTargetFlags());
else
return NULL;
// Generate:
// lwc $f0, X($3)
// lwc $f1, X+4($3)
- SDNode *LD0 = CurDAG->getMachineNode(Mips::LWC1, dl, MVT::f32,
+ SDNode *LD0 = CurDAG->getMachineNode(Mips::LWC1, dl, MVT::f32,
MVT::Other, Offset0, Base, Chain);
SDValue Undef = SDValue(CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF,
dl, NVT), 0);
- SDValue I0 = CurDAG->getTargetInsertSubreg(Mips::sub_fpeven, dl,
+ SDValue I0 = CurDAG->getTargetInsertSubreg(Mips::sub_fpeven, dl,
MVT::f64, Undef, SDValue(LD0, 0));
SDNode *LD1 = CurDAG->getMachineNode(Mips::LWC1, dl, MVT::f32,
MVT::Other, Offset1, Base, SDValue(LD0, 1));
- SDValue I1 = CurDAG->getTargetInsertSubreg(Mips::sub_fpodd, dl,
+ SDValue I1 = CurDAG->getTargetInsertSubreg(Mips::sub_fpodd, dl,
MVT::f64, I0, SDValue(LD1, 0));
ReplaceUses(SDValue(N, 0), I1);
SDNode *MipsDAGToDAGISel::SelectStoreFp64(SDNode *N) {
- if (!Subtarget.isMips1() ||
+ if (!Subtarget.isMips1() ||
N->getOperand(1).getValueType() != MVT::f64)
return NULL;
DebugLoc dl = N->getDebugLoc();
// Get the even and odd part from the f64 register
- SDValue FPOdd = CurDAG->getTargetExtractSubreg(Mips::sub_fpodd,
+ SDValue FPOdd = CurDAG->getTargetExtractSubreg(Mips::sub_fpodd,
dl, MVT::f32, N1);
SDValue FPEven = CurDAG->getTargetExtractSubreg(Mips::sub_fpeven,
dl, MVT::f32, N1);
- // The second store should start after for 4 bytes.
+ // The second store should start after for 4 bytes.
if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Offset0))
Offset1 = CurDAG->getTargetConstant(C->getSExtValue()+4, MVT::i32);
else
}
///
- // Instruction Selection not handled by the auto-generated
+ // Instruction Selection not handled by the auto-generated
// tablegen selection should be handled here.
- ///
+ ///
switch(Opcode) {
default: break;
- case ISD::SUBE:
+ case ISD::SUBE:
case ISD::ADDE: {
SDValue InFlag = Node->getOperand(2), CmpLHS;
unsigned Opc = InFlag.getOpcode(); (void)Opc;
- assert(((Opc == ISD::ADDC || Opc == ISD::ADDE) ||
- (Opc == ISD::SUBC || Opc == ISD::SUBE)) &&
+ assert(((Opc == ISD::ADDC || Opc == ISD::ADDE) ||
+ (Opc == ISD::SUBC || Opc == ISD::SUBE)) &&
"(ADD|SUB)E flag operand must come from (ADD|SUB)C/E insn");
unsigned MOp;
if (Opcode == ISD::ADDE) {
CmpLHS = InFlag.getValue(0);
MOp = Mips::ADDu;
- } else {
+ } else {
CmpLHS = InFlag.getOperand(0);
MOp = Mips::SUBu;
}
EVT VT = LHS.getValueType();
SDNode *Carry = CurDAG->getMachineNode(Mips::SLTu, dl, VT, Ops, 2);
- SDNode *AddCarry = CurDAG->getMachineNode(Mips::ADDu, dl, VT,
+ SDNode *AddCarry = CurDAG->getMachineNode(Mips::ADDu, dl, VT,
SDValue(Carry,0), RHS);
return CurDAG->SelectNodeTo(Node, MOp, VT, MVT::Glue,
SDNode *MulDiv = CurDAG->getMachineNode(Op, dl, MVT::Glue, Op1, Op2);
SDValue InFlag = SDValue(MulDiv, 0);
- SDNode *Lo = CurDAG->getMachineNode(Mips::MFLO, dl, MVT::i32,
+ SDNode *Lo = CurDAG->getMachineNode(Mips::MFLO, dl, MVT::i32,
MVT::Glue, InFlag);
InFlag = SDValue(Lo,1);
SDNode *Hi = CurDAG->getMachineNode(Mips::MFHI, dl, MVT::i32, InFlag);
- if (!SDValue(Node, 0).use_empty())
+ if (!SDValue(Node, 0).use_empty())
ReplaceUses(SDValue(Node, 0), SDValue(Lo,0));
- if (!SDValue(Node, 1).use_empty())
+ if (!SDValue(Node, 1).use_empty())
ReplaceUses(SDValue(Node, 1), SDValue(Hi,0));
return NULL;
}
/// Special Muls
- case ISD::MUL:
+ case ISD::MUL:
if (Subtarget.isMips32())
break;
case ISD::MULHS:
SDValue MulOp2 = Node->getOperand(1);
unsigned MulOp = (Opcode == ISD::MULHU ? Mips::MULTu : Mips::MULT);
- SDNode *MulNode = CurDAG->getMachineNode(MulOp, dl,
+ SDNode *MulNode = CurDAG->getMachineNode(MulOp, dl,
MVT::Glue, MulOp1, MulOp2);
SDValue InFlag = SDValue(MulNode, 0);
/// Div/Rem operations
case ISD::SREM:
case ISD::UREM:
- case ISD::SDIV:
+ case ISD::SDIV:
case ISD::UDIV: {
SDValue Op1 = Node->getOperand(0);
SDValue Op2 = Node->getOperand(1);
case ISD::ConstantFP: {
ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(Node);
- if (Node->getValueType(0) == MVT::f64 && CN->isExactlyValue(+0.0)) {
- SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
+ if (Node->getValueType(0) == MVT::f64 && CN->isExactlyValue(+0.0)) {
+ SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
Mips::ZERO, MVT::i32);
SDValue Undef = SDValue(
CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF, dl, MVT::f64), 0);
SDNode *MTC = CurDAG->getMachineNode(Mips::MTC1, dl, MVT::f32, Zero);
- SDValue I0 = CurDAG->getTargetInsertSubreg(Mips::sub_fpeven, dl,
+ SDValue I0 = CurDAG->getTargetInsertSubreg(Mips::sub_fpeven, dl,
MVT::f64, Undef, SDValue(MTC, 0));
- SDValue I1 = CurDAG->getTargetInsertSubreg(Mips::sub_fpodd, dl,
+ SDValue I1 = CurDAG->getTargetInsertSubreg(Mips::sub_fpodd, dl,
MVT::f64, I0, SDValue(MTC, 0));
ReplaceUses(SDValue(Node, 0), I1);
return I1.getNode();
// Other cases are autogenerated.
break;
- /// Handle direct and indirect calls when using PIC. On PIC, when
- /// GOT is smaller than about 64k (small code) the GA target is
- /// loaded with only one instruction. Otherwise GA's target must
- /// be loaded with 3 instructions.
+ /// Handle direct and indirect calls when using PIC. On PIC, when
+ /// GOT is smaller than about 64k (small code) the GA target is
+ /// loaded with only one instruction. Otherwise GA's target must
+ /// be loaded with 3 instructions.
case MipsISD::JmpLink: {
if (TM.getRelocationModel() == Reloc::PIC_) {
unsigned LastOpNum = Node->getNumOperands()-1;
// Use load to get GOT target
SDValue Ops[] = { Callee, GPReg, Chain };
- SDValue Load = SDValue(CurDAG->getMachineNode(Mips::LW, dl, MVT::i32,
+ SDValue Load = SDValue(CurDAG->getMachineNode(Mips::LW, dl, MVT::i32,
MVT::Other, Ops, 3), 0);
Chain = Load.getValue(1);
// Call target must be on T9
Chain = CurDAG->getCopyToReg(Chain, dl, Mips::T9, Load, InFlag);
- } else
+ } else
/// Indirect call
Chain = CurDAG->getCopyToReg(Chain, dl, Mips::T9, Callee, InFlag);
Ops.push_back(Chain.getValue(1));
// Emit Jump and Link Register
- SDNode *ResNode = CurDAG->getMachineNode(Mips::JALR, dl, NodeTys,
+ SDNode *ResNode = CurDAG->getMachineNode(Mips::JALR, dl, NodeTys,
&Ops[0], Ops.size());
// Replace Chain and InFlag
ReplaceUses(SDValue(Node, 0), SDValue(ResNode, 0));
ReplaceUses(SDValue(Node, 1), SDValue(ResNode, 1));
return ResNode;
- }
+ }
}
}
return ResNode;
}
-/// createMipsISelDag - This pass converts a legalized DAG into a
+/// createMipsISelDag - This pass converts a legalized DAG into a
/// MIPS-specific DAG, ready for instruction scheduling.
FunctionPass *llvm::createMipsISelDag(MipsTargetMachine &TM) {
return new MipsDAGToDAGISel(TM);
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