//
//===----------------------------------------------------------------------===//
-#include "SparcISelLowering.h"
#include "SparcTargetMachine.h"
-#include "llvm/Intrinsics.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
+#include "llvm/IR/Intrinsics.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
class SparcDAGToDAGISel : public SelectionDAGISel {
/// Subtarget - Keep a pointer to the Sparc Subtarget around so that we can
/// make the right decision when generating code for different targets.
- const SparcSubtarget &Subtarget;
+ const SparcSubtarget *Subtarget;
public:
- explicit SparcDAGToDAGISel(SparcTargetMachine &TM)
- : SelectionDAGISel(*TM.getTargetLowering()),
- Subtarget(TM.getSubtarget<SparcSubtarget>()) {
+ explicit SparcDAGToDAGISel(SparcTargetMachine &tm) : SelectionDAGISel(tm) {}
+
+ bool runOnMachineFunction(MachineFunction &MF) override {
+ Subtarget = &MF.getSubtarget<SparcSubtarget>();
+ return SelectionDAGISel::runOnMachineFunction(MF);
}
- SDNode *Select(SDValue Op);
+ SDNode *Select(SDNode *N) override;
// Complex Pattern Selectors.
- bool SelectADDRrr(SDValue Op, SDValue N, SDValue &R1, SDValue &R2);
- bool SelectADDRri(SDValue Op, SDValue N, SDValue &Base,
- SDValue &Offset);
+ bool SelectADDRrr(SDValue N, SDValue &R1, SDValue &R2);
+ bool SelectADDRri(SDValue N, SDValue &Base, SDValue &Offset);
/// SelectInlineAsmMemoryOperand - Implement addressing mode selection for
/// inline asm expressions.
- virtual bool SelectInlineAsmMemoryOperand(const SDValue &Op,
- char ConstraintCode,
- std::vector<SDValue> &OutOps);
-
- /// InstructionSelect - This callback is invoked by
- /// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
- virtual void InstructionSelect();
+ bool SelectInlineAsmMemoryOperand(const SDValue &Op,
+ unsigned ConstraintID,
+ std::vector<SDValue> &OutOps) override;
- virtual const char *getPassName() const {
+ const char *getPassName() const override {
return "SPARC DAG->DAG Pattern Instruction Selection";
}
// Include the pieces autogenerated from the target description.
#include "SparcGenDAGISel.inc"
+
+private:
+ SDNode* getGlobalBaseReg();
};
} // end anonymous namespace
-/// InstructionSelect - This callback is invoked by
-/// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
-void SparcDAGToDAGISel::InstructionSelect() {
- DEBUG(BB->dump());
-
- // Select target instructions for the DAG.
- SelectRoot();
- CurDAG->RemoveDeadNodes();
+SDNode* SparcDAGToDAGISel::getGlobalBaseReg() {
+ unsigned GlobalBaseReg = Subtarget->getInstrInfo()->getGlobalBaseReg(MF);
+ return CurDAG->getRegister(GlobalBaseReg, TLI->getPointerTy()).getNode();
}
-bool SparcDAGToDAGISel::SelectADDRri(SDValue Op, SDValue Addr,
+bool SparcDAGToDAGISel::SelectADDRri(SDValue Addr,
SDValue &Base, SDValue &Offset) {
if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
+ Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), TLI->getPointerTy());
+ Offset = CurDAG->getTargetConstant(0, SDLoc(Addr), MVT::i32);
return true;
}
if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
+ Addr.getOpcode() == ISD::TargetGlobalAddress ||
+ Addr.getOpcode() == ISD::TargetGlobalTLSAddress)
return false; // direct calls.
if (Addr.getOpcode() == ISD::ADD) {
if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1))) {
- if (Predicate_simm13(CN)) {
+ if (isInt<13>(CN->getSExtValue())) {
if (FrameIndexSDNode *FIN =
dyn_cast<FrameIndexSDNode>(Addr.getOperand(0))) {
// Constant offset from frame ref.
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
+ Base =
+ CurDAG->getTargetFrameIndex(FIN->getIndex(), TLI->getPointerTy());
} else {
Base = Addr.getOperand(0);
}
- Offset = CurDAG->getTargetConstant(CN->getZExtValue(), MVT::i32);
+ Offset = CurDAG->getTargetConstant(CN->getZExtValue(), SDLoc(Addr),
+ MVT::i32);
return true;
}
}
}
}
Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
+ Offset = CurDAG->getTargetConstant(0, SDLoc(Addr), MVT::i32);
return true;
}
-bool SparcDAGToDAGISel::SelectADDRrr(SDValue Op, SDValue Addr,
- SDValue &R1, SDValue &R2) {
+bool SparcDAGToDAGISel::SelectADDRrr(SDValue Addr, SDValue &R1, SDValue &R2) {
if (Addr.getOpcode() == ISD::FrameIndex) return false;
if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
+ Addr.getOpcode() == ISD::TargetGlobalAddress ||
+ Addr.getOpcode() == ISD::TargetGlobalTLSAddress)
return false; // direct calls.
if (Addr.getOpcode() == ISD::ADD) {
- if (isa<ConstantSDNode>(Addr.getOperand(1)) &&
- Predicate_simm13(Addr.getOperand(1).getNode()))
- return false; // Let the reg+imm pattern catch this!
+ if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1)))
+ if (isInt<13>(CN->getSExtValue()))
+ return false; // Let the reg+imm pattern catch this!
if (Addr.getOperand(0).getOpcode() == SPISD::Lo ||
Addr.getOperand(1).getOpcode() == SPISD::Lo)
return false; // Let the reg+imm pattern catch this!
}
R1 = Addr;
- R2 = CurDAG->getRegister(SP::G0, MVT::i32);
+ R2 = CurDAG->getRegister(SP::G0, TLI->getPointerTy());
return true;
}
-SDNode *SparcDAGToDAGISel::Select(SDValue Op) {
- SDNode *N = Op.getNode();
- if (N->isMachineOpcode())
- return NULL; // Already selected.
+SDNode *SparcDAGToDAGISel::Select(SDNode *N) {
+ SDLoc dl(N);
+ if (N->isMachineOpcode()) {
+ N->setNodeId(-1);
+ return nullptr; // Already selected.
+ }
switch (N->getOpcode()) {
default: break;
+ case SPISD::GLOBAL_BASE_REG:
+ return getGlobalBaseReg();
+
case ISD::SDIV:
case ISD::UDIV: {
+ // sdivx / udivx handle 64-bit divides.
+ if (N->getValueType(0) == MVT::i64)
+ break;
// FIXME: should use a custom expander to expose the SRA to the dag.
SDValue DivLHS = N->getOperand(0);
SDValue DivRHS = N->getOperand(1);
- AddToISelQueue(DivLHS);
- AddToISelQueue(DivRHS);
// Set the Y register to the high-part.
SDValue TopPart;
if (N->getOpcode() == ISD::SDIV) {
- TopPart = SDValue(CurDAG->getTargetNode(SP::SRAri, MVT::i32, DivLHS,
- CurDAG->getTargetConstant(31, MVT::i32)), 0);
+ TopPart = SDValue(CurDAG->getMachineNode(SP::SRAri, dl, MVT::i32, DivLHS,
+ CurDAG->getTargetConstant(31, dl, MVT::i32)),
+ 0);
} else {
TopPart = CurDAG->getRegister(SP::G0, MVT::i32);
}
- TopPart = SDValue(CurDAG->getTargetNode(SP::WRYrr, MVT::Flag, TopPart,
- CurDAG->getRegister(SP::G0, MVT::i32)), 0);
+ TopPart = SDValue(CurDAG->getMachineNode(SP::WRASRrr, dl, MVT::i32,
+ TopPart,
+ CurDAG->getRegister(SP::G0, MVT::i32)), 0);
+ TopPart = CurDAG->getCopyToReg(TopPart, dl, SP::Y, TopPart, SDValue()).getValue(1);
// FIXME: Handle div by immediate.
unsigned Opcode = N->getOpcode() == ISD::SDIV ? SP::SDIVrr : SP::UDIVrr;
// FIXME: Handle mul by immediate.
SDValue MulLHS = N->getOperand(0);
SDValue MulRHS = N->getOperand(1);
- AddToISelQueue(MulLHS);
- AddToISelQueue(MulRHS);
unsigned Opcode = N->getOpcode() == ISD::MULHU ? SP::UMULrr : SP::SMULrr;
- SDNode *Mul = CurDAG->getTargetNode(Opcode, MVT::i32, MVT::Flag,
- MulLHS, MulRHS);
+ SDNode *Mul = CurDAG->getMachineNode(Opcode, dl, MVT::i32, MVT::Glue,
+ MulLHS, MulRHS);
// The high part is in the Y register.
- return CurDAG->SelectNodeTo(N, SP::RDY, MVT::i32, SDValue(Mul, 1));
- return NULL;
+ return CurDAG->SelectNodeTo(N, SP::RDASR, MVT::i32,
+ CurDAG->getRegister(SP::Y, MVT::i32),
+ SDValue(Mul, 1));
}
}
- return SelectCode(Op);
+ return SelectCode(N);
}
/// inline asm expressions.
bool
SparcDAGToDAGISel::SelectInlineAsmMemoryOperand(const SDValue &Op,
- char ConstraintCode,
+ unsigned ConstraintID,
std::vector<SDValue> &OutOps) {
SDValue Op0, Op1;
- switch (ConstraintCode) {
+ switch (ConstraintID) {
default: return true;
- case 'm': // memory
- if (!SelectADDRrr(Op, Op, Op0, Op1))
- SelectADDRri(Op, Op, Op0, Op1);
+ case InlineAsm::Constraint_i:
+ case InlineAsm::Constraint_m: // memory
+ if (!SelectADDRrr(Op, Op0, Op1))
+ SelectADDRri(Op, Op0, Op1);
break;
}
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