#include "Alpha.h"
#include "AlphaTargetMachine.h"
-#include "AlphaISelLowering.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
/// that the bits 1-7 of LHS are already zero. If LHS is non-null, we are
/// in checking mode. If LHS is null, we assume that the mask has already
/// been validated before.
- uint64_t get_zapImm(SDValue LHS, uint64_t Constant) {
+ uint64_t get_zapImm(SDValue LHS, uint64_t Constant) const {
uint64_t BitsToCheck = 0;
unsigned Result = 0;
for (unsigned i = 0; i != 8; ++i) {
static uint64_t getNearPower2(uint64_t x) {
if (!x) return 0;
unsigned at = CountLeadingZeros_64(x);
- uint64_t complow = 1 << (63 - at);
- uint64_t comphigh = 1 << (64 - at);
+ uint64_t complow = 1ULL << (63 - at);
+ uint64_t comphigh = 1ULL << (64 - at);
//cerr << x << ":" << complow << ":" << comphigh << "\n";
if (abs64(complow - x) <= abs64(comphigh - x))
return complow;
return (x - y) == r;
}
- static bool isFPZ(SDValue N) {
- ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(N);
- return (CN && (CN->getValueAPF().isZero()));
- }
- static bool isFPZn(SDValue N) {
- ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(N);
- return (CN && CN->getValueAPF().isNegZero());
- }
- static bool isFPZp(SDValue N) {
- ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(N);
- return (CN && CN->getValueAPF().isPosZero());
- }
-
public:
explicit AlphaDAGToDAGISel(AlphaTargetMachine &TM)
: SelectionDAGISel(TM)
// Select - Convert the specified operand from a target-independent to a
// target-specific node if it hasn't already been changed.
- SDNode *Select(SDValue Op);
-
- /// InstructionSelect - This callback is invoked by
- /// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
- virtual void InstructionSelect();
+ SDNode *Select(SDNode *N);
virtual const char *getPassName() const {
return "Alpha DAG->DAG Pattern Instruction Selection";
SDNode *getGlobalBaseReg();
SDNode *getGlobalRetAddr();
- void SelectCALL(SDValue Op);
+ void SelectCALL(SDNode *Op);
};
}
/// GOT address into a register.
///
SDNode *AlphaDAGToDAGISel::getGlobalBaseReg() {
- MachineFunction *MF = BB->getParent();
unsigned GlobalBaseReg = getInstrInfo()->getGlobalBaseReg(MF);
return CurDAG->getRegister(GlobalBaseReg, TLI.getPointerTy()).getNode();
}
/// getGlobalRetAddr - Grab the return address.
///
SDNode *AlphaDAGToDAGISel::getGlobalRetAddr() {
- MachineFunction *MF = BB->getParent();
unsigned GlobalRetAddr = getInstrInfo()->getGlobalRetAddr(MF);
return CurDAG->getRegister(GlobalRetAddr, TLI.getPointerTy()).getNode();
}
-/// InstructionSelect - This callback is invoked by
-/// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
-void AlphaDAGToDAGISel::InstructionSelect() {
- DEBUG(BB->dump());
-
- // Select target instructions for the DAG.
- SelectRoot(*CurDAG);
- CurDAG->RemoveDeadNodes();
-}
-
// Select - Convert the specified operand from a target-independent to a
// target-specific node if it hasn't already been changed.
-SDNode *AlphaDAGToDAGISel::Select(SDValue Op) {
- SDNode *N = Op.getNode();
- if (N->isMachineOpcode()) {
+SDNode *AlphaDAGToDAGISel::Select(SDNode *N) {
+ if (N->isMachineOpcode())
return NULL; // Already selected.
- }
DebugLoc dl = N->getDebugLoc();
switch (N->getOpcode()) {
default: break;
case AlphaISD::CALL:
- SelectCALL(Op);
+ SelectCALL(N);
return NULL;
case ISD::FrameIndex: {
case AlphaISD::DivCall: {
SDValue Chain = CurDAG->getEntryNode();
- SDValue N0 = Op.getOperand(0);
- SDValue N1 = Op.getOperand(1);
- SDValue N2 = Op.getOperand(2);
+ SDValue N0 = N->getOperand(0);
+ SDValue N1 = N->getOperand(1);
+ SDValue N2 = N->getOperand(2);
Chain = CurDAG->getCopyToReg(Chain, dl, Alpha::R24, N1,
SDValue(0,0));
Chain = CurDAG->getCopyToReg(Chain, dl, Alpha::R25, N2,
Chain = CurDAG->getCopyToReg(Chain, dl, Alpha::R27, N0,
Chain.getValue(1));
SDNode *CNode =
- CurDAG->getTargetNode(Alpha::JSRs, dl, MVT::Other, MVT::Flag,
- Chain, Chain.getValue(1));
+ CurDAG->getMachineNode(Alpha::JSRs, dl, MVT::Other, MVT::Glue,
+ Chain, Chain.getValue(1));
Chain = CurDAG->getCopyFromReg(Chain, dl, Alpha::R27, MVT::i64,
SDValue(CNode, 1));
return CurDAG->SelectNodeTo(N, Alpha::BISr, MVT::i64, Chain, Chain);
case ISD::READCYCLECOUNTER: {
SDValue Chain = N->getOperand(0);
- return CurDAG->getTargetNode(Alpha::RPCC, dl, MVT::i64, MVT::Other,
- Chain);
+ return CurDAG->getMachineNode(Alpha::RPCC, dl, MVT::i64, MVT::Other,
+ Chain);
}
case ISD::Constant: {
if (uval == 0) {
SDValue Result = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
Alpha::R31, MVT::i64);
- ReplaceUses(Op, Result);
+ ReplaceUses(SDValue(N, 0), Result);
return NULL;
}
ConstantInt *C = ConstantInt::get(
Type::getInt64Ty(*CurDAG->getContext()), uval);
SDValue CPI = CurDAG->getTargetConstantPool(C, MVT::i64);
- SDNode *Tmp = CurDAG->getTargetNode(Alpha::LDAHr, dl, MVT::i64, CPI,
- SDValue(getGlobalBaseReg(), 0));
+ SDNode *Tmp = CurDAG->getMachineNode(Alpha::LDAHr, dl, MVT::i64, CPI,
+ SDValue(getGlobalBaseReg(), 0));
return CurDAG->SelectNodeTo(N, Alpha::LDQr, MVT::i64, MVT::Other,
CPI, SDValue(Tmp, 0), CurDAG->getEntryNode());
}
T, CurDAG->getRegister(Alpha::F31, T),
CurDAG->getRegister(Alpha::F31, T));
} else {
- llvm_report_error("Unhandled FP constant type");
+ report_fatal_error("Unhandled FP constant type");
}
break;
}
};
SDValue tmp1 = N->getOperand(rev?1:0);
SDValue tmp2 = N->getOperand(rev?0:1);
- SDNode *cmp = CurDAG->getTargetNode(Opc, dl, MVT::f64, tmp1, tmp2);
+ SDNode *cmp = CurDAG->getMachineNode(Opc, dl, MVT::f64, tmp1, tmp2);
if (inv)
- cmp = CurDAG->getTargetNode(Alpha::CMPTEQ, dl,
- MVT::f64, SDValue(cmp, 0),
- CurDAG->getRegister(Alpha::F31, MVT::f64));
+ cmp = CurDAG->getMachineNode(Alpha::CMPTEQ, dl,
+ MVT::f64, SDValue(cmp, 0),
+ CurDAG->getRegister(Alpha::F31, MVT::f64));
switch(CC) {
case ISD::SETUEQ: case ISD::SETULT: case ISD::SETULE:
case ISD::SETUNE: case ISD::SETUGT: case ISD::SETUGE:
{
- SDNode* cmp2 = CurDAG->getTargetNode(Alpha::CMPTUN, dl, MVT::f64,
- tmp1, tmp2);
- cmp = CurDAG->getTargetNode(Alpha::ADDT, dl, MVT::f64,
- SDValue(cmp2, 0), SDValue(cmp, 0));
+ SDNode* cmp2 = CurDAG->getMachineNode(Alpha::CMPTUN, dl, MVT::f64,
+ tmp1, tmp2);
+ cmp = CurDAG->getMachineNode(Alpha::ADDT, dl, MVT::f64,
+ SDValue(cmp2, 0), SDValue(cmp, 0));
break;
}
default: break;
}
- SDNode* LD = CurDAG->getTargetNode(Alpha::FTOIT, dl,
- MVT::i64, SDValue(cmp, 0));
- return CurDAG->getTargetNode(Alpha::CMPULT, dl, MVT::i64,
- CurDAG->getRegister(Alpha::R31, MVT::i64),
- SDValue(LD,0));
+ SDNode* LD = CurDAG->getMachineNode(Alpha::FTOIT, dl,
+ MVT::i64, SDValue(cmp, 0));
+ return CurDAG->getMachineNode(Alpha::CMPULT, dl, MVT::i64,
+ CurDAG->getRegister(Alpha::R31, MVT::i64),
+ SDValue(LD,0));
}
break;
if (get_zapImm(mask)) {
SDValue Z =
- SDValue(CurDAG->getTargetNode(Alpha::ZAPNOTi, dl, MVT::i64,
- N->getOperand(0).getOperand(0),
- getI64Imm(get_zapImm(mask))), 0);
- return CurDAG->getTargetNode(Alpha::SRLr, dl, MVT::i64, Z,
- getI64Imm(sval));
+ SDValue(CurDAG->getMachineNode(Alpha::ZAPNOTi, dl, MVT::i64,
+ N->getOperand(0).getOperand(0),
+ getI64Imm(get_zapImm(mask))), 0);
+ return CurDAG->getMachineNode(Alpha::SRLr, dl, MVT::i64, Z,
+ getI64Imm(sval));
}
}
break;
}
- return SelectCode(Op);
+ return SelectCode(N);
}
-void AlphaDAGToDAGISel::SelectCALL(SDValue Op) {
+void AlphaDAGToDAGISel::SelectCALL(SDNode *N) {
//TODO: add flag stuff to prevent nondeturministic breakage!
- SDNode *N = Op.getNode();
SDValue Chain = N->getOperand(0);
SDValue Addr = N->getOperand(1);
SDValue InFlag = N->getOperand(N->getNumOperands() - 1);
SDValue GOT = SDValue(getGlobalBaseReg(), 0);
Chain = CurDAG->getCopyToReg(Chain, dl, Alpha::R29, GOT, InFlag);
InFlag = Chain.getValue(1);
- Chain = SDValue(CurDAG->getTargetNode(Alpha::BSR, dl, MVT::Other,
- MVT::Flag, Addr.getOperand(0),
- Chain, InFlag), 0);
+ Chain = SDValue(CurDAG->getMachineNode(Alpha::BSR, dl, MVT::Other,
+ MVT::Glue, Addr.getOperand(0),
+ Chain, InFlag), 0);
} else {
Chain = CurDAG->getCopyToReg(Chain, dl, Alpha::R27, Addr, InFlag);
InFlag = Chain.getValue(1);
- Chain = SDValue(CurDAG->getTargetNode(Alpha::JSR, dl, MVT::Other,
- MVT::Flag, Chain, InFlag), 0);
+ Chain = SDValue(CurDAG->getMachineNode(Alpha::JSR, dl, MVT::Other,
+ MVT::Glue, Chain, InFlag), 0);
}
InFlag = Chain.getValue(1);
- ReplaceUses(Op.getValue(0), Chain);
- ReplaceUses(Op.getValue(1), InFlag);
+ ReplaceUses(SDValue(N, 0), Chain);
+ ReplaceUses(SDValue(N, 1), InFlag);
}
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