///
namespace {
class HexagonDAGToDAGISel : public SelectionDAGISel {
- /// Subtarget - Keep a pointer to the Hexagon Subtarget around so that we can
- /// make the right decision when generating code for different targets.
- const HexagonSubtarget *Subtarget;
-
- // Keep a reference to HexagonTargetMachine.
- const HexagonTargetMachine& TM;
+ const HexagonTargetMachine& HTM;
+ const HexagonSubtarget &HST;
public:
- explicit HexagonDAGToDAGISel(HexagonTargetMachine &targetmachine,
+ explicit HexagonDAGToDAGISel(HexagonTargetMachine &tm,
CodeGenOpt::Level OptLevel)
- : SelectionDAGISel(targetmachine, OptLevel), TM(targetmachine) {
+ : SelectionDAGISel(tm, OptLevel), HTM(tm),
+ HST(tm.getSubtarget<HexagonSubtarget>()) {
initializeHexagonDAGToDAGISelPass(*PassRegistry::getPassRegistry());
}
- bool hasNumUsesBelowThresGA(SDNode *N) const;
SDNode *Select(SDNode *N) override;
- // Complex Pattern Selectors.
- inline bool foldGlobalAddress(SDValue &N, SDValue &R);
- inline bool foldGlobalAddressGP(SDValue &N, SDValue &R);
- bool foldGlobalAddressImpl(SDValue &N, SDValue &R, bool ShouldLookForGP);
- bool SelectADDRri(SDValue& N, SDValue &R1, SDValue &R2);
- bool SelectADDRriS11_0(SDValue& N, SDValue &R1, SDValue &R2);
- bool SelectADDRriS11_1(SDValue& N, SDValue &R1, SDValue &R2);
- bool SelectADDRriS11_2(SDValue& N, SDValue &R1, SDValue &R2);
- bool SelectMEMriS11_2(SDValue& Addr, SDValue &Base, SDValue &Offset);
- bool SelectADDRriS11_3(SDValue& N, SDValue &R1, SDValue &R2);
- bool SelectADDRrr(SDValue &Addr, SDValue &Base, SDValue &Offset);
- bool SelectADDRriU6_0(SDValue& N, SDValue &R1, SDValue &R2);
- bool SelectADDRriU6_1(SDValue& N, SDValue &R1, SDValue &R2);
- bool SelectADDRriU6_2(SDValue& N, SDValue &R1, SDValue &R2);
-
// Complex Pattern Selectors.
inline bool SelectAddrGA(SDValue &N, SDValue &R);
inline bool SelectAddrGP(SDValue &N, SDValue &R);
return "Hexagon DAG->DAG Pattern Instruction Selection";
}
- bool runOnMachineFunction(MachineFunction &MF) override {
- Subtarget = &MF.getSubtarget<HexagonSubtarget>();
- return SelectionDAGISel::runOnMachineFunction(MF);
- }
-
+ SDNode *SelectFrameIndex(SDNode *N);
/// SelectInlineAsmMemoryOperand - Implement addressing mode selection for
/// inline asm expressions.
bool SelectInlineAsmMemoryOperand(const SDValue &Op,
char ConstraintCode,
std::vector<SDValue> &OutOps) override;
- bool SelectAddr(SDNode *Op, SDValue Addr, SDValue &Base, SDValue &Offset);
-
SDNode *SelectLoad(SDNode *N);
SDNode *SelectBaseOffsetLoad(LoadSDNode *LD, SDLoc dl);
SDNode *SelectIndexedLoad(LoadSDNode *LD, SDLoc dl);
SDNode *SelectConstantFP(SDNode *N);
SDNode *SelectAdd(SDNode *N);
-// XformMskToBitPosU5Imm - Returns the bit position which
-// the single bit 32 bit mask represents.
-// Used in Clr and Set bit immediate memops.
-SDValue XformMskToBitPosU5Imm(uint32_t Imm) {
- int32_t bitPos;
- bitPos = Log2_32(Imm);
- assert(bitPos >= 0 && bitPos < 32 &&
- "Constant out of range for 32 BitPos Memops");
- return CurDAG->getTargetConstant(bitPos, MVT::i32);
-}
-
-// XformMskToBitPosU4Imm - Returns the bit position which the single bit 16 bit
-// mask represents. Used in Clr and Set bit immediate memops.
-SDValue XformMskToBitPosU4Imm(uint16_t Imm) {
- return XformMskToBitPosU5Imm(Imm);
-}
+ // XformMskToBitPosU5Imm - Returns the bit position which
+ // the single bit 32 bit mask represents.
+ // Used in Clr and Set bit immediate memops.
+ SDValue XformMskToBitPosU5Imm(uint32_t Imm) {
+ int32_t bitPos;
+ bitPos = Log2_32(Imm);
+ assert(bitPos >= 0 && bitPos < 32 &&
+ "Constant out of range for 32 BitPos Memops");
+ return CurDAG->getTargetConstant(bitPos, MVT::i32);
+ }
-// XformMskToBitPosU3Imm - Returns the bit position which the single bit 8 bit
-// mask represents. Used in Clr and Set bit immediate memops.
-SDValue XformMskToBitPosU3Imm(uint8_t Imm) {
- return XformMskToBitPosU5Imm(Imm);
-}
+ // XformMskToBitPosU4Imm - Returns the bit position which the single-bit
+ // 16 bit mask represents. Used in Clr and Set bit immediate memops.
+ SDValue XformMskToBitPosU4Imm(uint16_t Imm) {
+ return XformMskToBitPosU5Imm(Imm);
+ }
-// Return true if there is exactly one bit set in V, i.e., if V is one of the
-// following integers: 2^0, 2^1, ..., 2^31.
-bool ImmIsSingleBit(uint32_t v) const {
- return isPowerOf2_32(v);
-}
+ // XformMskToBitPosU3Imm - Returns the bit position which the single-bit
+ // 8 bit mask represents. Used in Clr and Set bit immediate memops.
+ SDValue XformMskToBitPosU3Imm(uint8_t Imm) {
+ return XformMskToBitPosU5Imm(Imm);
+ }
-// XformM5ToU5Imm - Return a target constant with the specified value, of type
-// i32 where the negative literal is transformed into a positive literal for
-// use in -= memops.
-inline SDValue XformM5ToU5Imm(signed Imm) {
- assert( (Imm >= -31 && Imm <= -1) && "Constant out of range for Memops");
- return CurDAG->getTargetConstant( - Imm, MVT::i32);
-}
+ // Return true if there is exactly one bit set in V, i.e., if V is one of the
+ // following integers: 2^0, 2^1, ..., 2^31.
+ bool ImmIsSingleBit(uint32_t v) const {
+ return isPowerOf2_32(v);
+ }
+ // XformM5ToU5Imm - Return a target constant with the specified value, of
+ // type i32 where the negative literal is transformed into a positive literal
+ // for use in -= memops.
+ inline SDValue XformM5ToU5Imm(signed Imm) {
+ assert( (Imm >= -31 && Imm <= -1) && "Constant out of range for Memops");
+ return CurDAG->getTargetConstant( - Imm, MVT::i32);
+ }
-// XformU7ToU7M1Imm - Return a target constant decremented by 1, in range
-// [1..128], used in cmpb.gtu instructions.
-inline SDValue XformU7ToU7M1Imm(signed Imm) {
- assert((Imm >= 1 && Imm <= 128) && "Constant out of range for cmpb op");
- return CurDAG->getTargetConstant(Imm - 1, MVT::i8);
-}
+ // XformU7ToU7M1Imm - Return a target constant decremented by 1, in range
+ // [1..128], used in cmpb.gtu instructions.
+ inline SDValue XformU7ToU7M1Imm(signed Imm) {
+ assert((Imm >= 1 && Imm <= 128) && "Constant out of range for cmpb op");
+ return CurDAG->getTargetConstant(Imm - 1, MVT::i8);
+ }
-// XformS8ToS8M1Imm - Return a target constant decremented by 1.
-inline SDValue XformSToSM1Imm(signed Imm) {
- return CurDAG->getTargetConstant(Imm - 1, MVT::i32);
-}
+ // XformS8ToS8M1Imm - Return a target constant decremented by 1.
+ inline SDValue XformSToSM1Imm(signed Imm) {
+ return CurDAG->getTargetConstant(Imm - 1, MVT::i32);
+ }
-// XformU8ToU8M1Imm - Return a target constant decremented by 1.
-inline SDValue XformUToUM1Imm(unsigned Imm) {
- assert((Imm >= 1) && "Cannot decrement unsigned int less than 1");
- return CurDAG->getTargetConstant(Imm - 1, MVT::i32);
-}
+ // XformU8ToU8M1Imm - Return a target constant decremented by 1.
+ inline SDValue XformUToUM1Imm(unsigned Imm) {
+ assert((Imm >= 1) && "Cannot decrement unsigned int less than 1");
+ return CurDAG->getTargetConstant(Imm - 1, MVT::i32);
+ }
-// XformSToSM2Imm - Return a target constant decremented by 2.
-inline SDValue XformSToSM2Imm(unsigned Imm) {
- return CurDAG->getTargetConstant(Imm - 2, MVT::i32);
-}
+ // XformSToSM2Imm - Return a target constant decremented by 2.
+ inline SDValue XformSToSM2Imm(unsigned Imm) {
+ return CurDAG->getTargetConstant(Imm - 2, MVT::i32);
+ }
-// XformSToSM3Imm - Return a target constant decremented by 3.
-inline SDValue XformSToSM3Imm(unsigned Imm) {
- return CurDAG->getTargetConstant(Imm - 3, MVT::i32);
-}
+ // XformSToSM3Imm - Return a target constant decremented by 3.
+ inline SDValue XformSToSM3Imm(unsigned Imm) {
+ return CurDAG->getTargetConstant(Imm - 3, MVT::i32);
+ }
-// Include the pieces autogenerated from the target description.
-#include "HexagonGenDAGISel.inc"
+ // Include the pieces autogenerated from the target description.
+ #include "HexagonGenDAGISel.inc"
private:
- bool isValueExtension(SDValue const &Val, unsigned FromBits, SDValue &Src);
-};
+ bool isValueExtension(const SDValue &Val, unsigned FromBits, SDValue &Src);
+}; // end HexagonDAGToDAGISel
} // end anonymous namespace
/// createHexagonISelDag - This pass converts a legalized DAG into a
/// Hexagon-specific DAG, ready for instruction scheduling.
///
-FunctionPass *llvm::createHexagonISelDag(HexagonTargetMachine &TM,
- CodeGenOpt::Level OptLevel) {
+namespace llvm {
+FunctionPass *createHexagonISelDag(HexagonTargetMachine &TM,
+ CodeGenOpt::Level OptLevel) {
return new HexagonDAGToDAGISel(TM, OptLevel);
}
+}
static void initializePassOnce(PassRegistry &Registry) {
const char *Name = "Hexagon DAG->DAG Pattern Instruction Selection";
}
-static bool IsS11_0_Offset(SDNode * S) {
- ConstantSDNode *N = cast<ConstantSDNode>(S);
-
- // immS16 predicate - True if the immediate fits in a 16-bit sign extended
- // field.
- int64_t v = (int64_t)N->getSExtValue();
- return isInt<11>(v);
-}
-
-
-static bool IsS11_1_Offset(SDNode * S) {
- ConstantSDNode *N = cast<ConstantSDNode>(S);
-
- // immS16 predicate - True if the immediate fits in a 16-bit sign extended
- // field.
- int64_t v = (int64_t)N->getSExtValue();
- return isShiftedInt<11,1>(v);
-}
-
-
-static bool IsS11_2_Offset(SDNode * S) {
- ConstantSDNode *N = cast<ConstantSDNode>(S);
-
- // immS16 predicate - True if the immediate fits in a 16-bit sign extended
- // field.
- int64_t v = (int64_t)N->getSExtValue();
- return isShiftedInt<11,2>(v);
-}
-
-
-static bool IsS11_3_Offset(SDNode * S) {
- ConstantSDNode *N = cast<ConstantSDNode>(S);
-
- // immS16 predicate - True if the immediate fits in a 16-bit sign extended
- // field.
- int64_t v = (int64_t)N->getSExtValue();
- return isShiftedInt<11,3>(v);
-}
-
-
-static bool IsU6_0_Offset(SDNode * S) {
- ConstantSDNode *N = cast<ConstantSDNode>(S);
-
- // u6 predicate - True if the immediate fits in a 6-bit unsigned extended
- // field.
- int64_t v = (int64_t)N->getSExtValue();
- return isUInt<6>(v);
-}
-
-
-static bool IsU6_1_Offset(SDNode * S) {
- ConstantSDNode *N = cast<ConstantSDNode>(S);
-
- // u6 predicate - True if the immediate fits in a 6-bit unsigned extended
- // field.
- int64_t v = (int64_t)N->getSExtValue();
- return isShiftedUInt<6,1>(v);
-}
-
-
-static bool IsU6_2_Offset(SDNode * S) {
- ConstantSDNode *N = cast<ConstantSDNode>(S);
-
- // u6 predicate - True if the immediate fits in a 6-bit unsigned extended
- // field.
- int64_t v = (int64_t)N->getSExtValue();
- return isShiftedUInt<6,2>(v);
-}
-
-
// Intrinsics that return a a predicate.
static unsigned doesIntrinsicReturnPredicate(unsigned ID)
{
}
}
-
SDNode *HexagonDAGToDAGISel::SelectIndexedLoadSignExtend64(LoadSDNode *LD,
unsigned Opcode,
- SDLoc dl)
-{
+ SDLoc dl) {
SDValue Chain = LD->getChain();
EVT LoadedVT = LD->getMemoryVT();
SDValue Base = LD->getBasePtr();
SDValue Offset = LD->getOffset();
SDNode *OffsetNode = Offset.getNode();
int32_t Val = cast<ConstantSDNode>(OffsetNode)->getSExtValue();
- SDValue N1 = LD->getOperand(1);
- SDValue CPTmpN1_0;
- SDValue CPTmpN1_1;
-
- if (SelectADDRriS11_2(N1, CPTmpN1_0, CPTmpN1_1) &&
- N1.getNode()->getValueType(0) == MVT::i32) {
- const HexagonInstrInfo *TII = Subtarget->getInstrInfo();
- if (TII->isValidAutoIncImm(LoadedVT, Val)) {
- SDValue TargetConst = CurDAG->getTargetConstant(Val, MVT::i32);
- SDNode *Result_1 = CurDAG->getMachineNode(Opcode, dl, MVT::i32, MVT::i32,
- MVT::Other, Base, TargetConst,
- Chain);
- SDNode *Result_2 = CurDAG->getMachineNode(Hexagon::A2_sxtw, dl, MVT::i64,
- SDValue(Result_1, 0));
- MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
- MemOp[0] = LD->getMemOperand();
- cast<MachineSDNode>(Result_1)->setMemRefs(MemOp, MemOp + 1);
- const SDValue Froms[] = { SDValue(LD, 0),
- SDValue(LD, 1),
- SDValue(LD, 2)
- };
- const SDValue Tos[] = { SDValue(Result_2, 0),
- SDValue(Result_1, 1),
- SDValue(Result_1, 2)
- };
- ReplaceUses(Froms, Tos, 3);
- return Result_2;
- }
- SDValue TargetConst0 = CurDAG->getTargetConstant(0, MVT::i32);
- SDValue TargetConstVal = CurDAG->getTargetConstant(Val, MVT::i32);
- SDNode *Result_1 = CurDAG->getMachineNode(Opcode, dl, MVT::i32,
- MVT::Other, Base, TargetConst0,
+
+ const HexagonInstrInfo &TII = *HST.getInstrInfo();
+ if (TII.isValidAutoIncImm(LoadedVT, Val)) {
+ SDValue TargetConst = CurDAG->getTargetConstant(Val, MVT::i32);
+ SDNode *Result_1 = CurDAG->getMachineNode(Opcode, dl, MVT::i32, MVT::i32,
+ MVT::Other, Base, TargetConst,
Chain);
- SDNode *Result_2 = CurDAG->getMachineNode(Hexagon::A2_sxtw, dl,
- MVT::i64, SDValue(Result_1, 0));
- SDNode* Result_3 = CurDAG->getMachineNode(Hexagon::A2_addi, dl,
- MVT::i32, Base, TargetConstVal,
- SDValue(Result_1, 1));
+ SDNode *Result_2 = CurDAG->getMachineNode(Hexagon::A2_sxtw, dl, MVT::i64,
+ SDValue(Result_1, 0));
MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
MemOp[0] = LD->getMemOperand();
cast<MachineSDNode>(Result_1)->setMemRefs(MemOp, MemOp + 1);
const SDValue Froms[] = { SDValue(LD, 0),
SDValue(LD, 1),
- SDValue(LD, 2)
- };
+ SDValue(LD, 2) };
const SDValue Tos[] = { SDValue(Result_2, 0),
- SDValue(Result_3, 0),
- SDValue(Result_1, 1)
- };
+ SDValue(Result_1, 1),
+ SDValue(Result_1, 2) };
ReplaceUses(Froms, Tos, 3);
return Result_2;
}
- return SelectCode(LD);
+
+ SDValue TargetConst0 = CurDAG->getTargetConstant(0, MVT::i32);
+ SDValue TargetConstVal = CurDAG->getTargetConstant(Val, MVT::i32);
+ SDNode *Result_1 = CurDAG->getMachineNode(Opcode, dl, MVT::i32, MVT::Other,
+ Base, TargetConst0, Chain);
+ SDNode *Result_2 = CurDAG->getMachineNode(Hexagon::A2_sxtw, dl, MVT::i64,
+ SDValue(Result_1, 0));
+ SDNode* Result_3 = CurDAG->getMachineNode(Hexagon::A2_addi, dl, MVT::i32,
+ Base, TargetConstVal,
+ SDValue(Result_1, 1));
+ MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
+ MemOp[0] = LD->getMemOperand();
+ cast<MachineSDNode>(Result_1)->setMemRefs(MemOp, MemOp + 1);
+ const SDValue Froms[] = { SDValue(LD, 0),
+ SDValue(LD, 1),
+ SDValue(LD, 2) };
+ const SDValue Tos[] = { SDValue(Result_2, 0),
+ SDValue(Result_3, 0),
+ SDValue(Result_1, 1) };
+ ReplaceUses(Froms, Tos, 3);
+ return Result_2;
}
SDNode *HexagonDAGToDAGISel::SelectIndexedLoadZeroExtend64(LoadSDNode *LD,
unsigned Opcode,
- SDLoc dl)
-{
+ SDLoc dl) {
SDValue Chain = LD->getChain();
EVT LoadedVT = LD->getMemoryVT();
SDValue Base = LD->getBasePtr();
SDValue Offset = LD->getOffset();
SDNode *OffsetNode = Offset.getNode();
int32_t Val = cast<ConstantSDNode>(OffsetNode)->getSExtValue();
- SDValue N1 = LD->getOperand(1);
- SDValue CPTmpN1_0;
- SDValue CPTmpN1_1;
-
- if (SelectADDRriS11_2(N1, CPTmpN1_0, CPTmpN1_1) &&
- N1.getNode()->getValueType(0) == MVT::i32) {
- const HexagonInstrInfo *TII = Subtarget->getInstrInfo();
- if (TII->isValidAutoIncImm(LoadedVT, Val)) {
- SDValue TargetConstVal = CurDAG->getTargetConstant(Val, MVT::i32);
- SDValue TargetConst0 = CurDAG->getTargetConstant(0, MVT::i32);
- SDNode *Result_1 = CurDAG->getMachineNode(Opcode, dl, MVT::i32,
- MVT::i32, MVT::Other, Base,
- TargetConstVal, Chain);
- SDNode *Result_2 = CurDAG->getMachineNode(Hexagon::A2_tfrsi, dl, MVT::i32,
- TargetConst0);
- SDNode *Result_3 = CurDAG->getMachineNode(Hexagon::A2_combinew, dl,
- MVT::i64, MVT::Other,
- SDValue(Result_2,0),
- SDValue(Result_1,0));
- MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
- MemOp[0] = LD->getMemOperand();
- cast<MachineSDNode>(Result_1)->setMemRefs(MemOp, MemOp + 1);
- const SDValue Froms[] = { SDValue(LD, 0),
- SDValue(LD, 1),
- SDValue(LD, 2)
- };
- const SDValue Tos[] = { SDValue(Result_3, 0),
- SDValue(Result_1, 1),
- SDValue(Result_1, 2)
- };
- ReplaceUses(Froms, Tos, 3);
- return Result_3;
- }
- // Generate an indirect load.
- SDValue TargetConst0 = CurDAG->getTargetConstant(0, MVT::i32);
+ const HexagonInstrInfo &TII = *HST.getInstrInfo();
+ if (TII.isValidAutoIncImm(LoadedVT, Val)) {
SDValue TargetConstVal = CurDAG->getTargetConstant(Val, MVT::i32);
+ SDValue TargetConst0 = CurDAG->getTargetConstant(0, MVT::i32);
SDNode *Result_1 = CurDAG->getMachineNode(Opcode, dl, MVT::i32,
- MVT::Other,
- Base, TargetConst0, Chain);
- SDNode *Result_2 = CurDAG->getMachineNode(Hexagon::A2_tfrsi, dl, MVT::i32,
- TargetConst0);
- SDNode *Result_3 = CurDAG->getMachineNode(Hexagon::A2_combinew, dl,
+ MVT::i32, MVT::Other, Base,
+ TargetConstVal, Chain);
+ SDNode *Result_2 = CurDAG->getMachineNode(Hexagon::A4_combineir, dl,
MVT::i64, MVT::Other,
- SDValue(Result_2,0),
+ TargetConst0,
SDValue(Result_1,0));
- // Add offset to base.
- SDNode* Result_4 = CurDAG->getMachineNode(Hexagon::A2_addi, dl, MVT::i32,
- Base, TargetConstVal,
- SDValue(Result_1, 1));
MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
MemOp[0] = LD->getMemOperand();
cast<MachineSDNode>(Result_1)->setMemRefs(MemOp, MemOp + 1);
const SDValue Froms[] = { SDValue(LD, 0),
SDValue(LD, 1),
- SDValue(LD, 2)
- };
- const SDValue Tos[] = { SDValue(Result_3, 0), // Load value.
- SDValue(Result_4, 0), // New address.
- SDValue(Result_1, 1)
- };
+ SDValue(LD, 2) };
+ const SDValue Tos[] = { SDValue(Result_2, 0),
+ SDValue(Result_1, 1),
+ SDValue(Result_1, 2) };
ReplaceUses(Froms, Tos, 3);
- return Result_3;
+ return Result_2;
}
- return SelectCode(LD);
+ // Generate an indirect load.
+ SDValue TargetConst0 = CurDAG->getTargetConstant(0, MVT::i32);
+ SDValue TargetConstVal = CurDAG->getTargetConstant(Val, MVT::i32);
+ SDNode *Result_1 = CurDAG->getMachineNode(Opcode, dl, MVT::i32,
+ MVT::Other, Base, TargetConst0,
+ Chain);
+ SDNode *Result_2 = CurDAG->getMachineNode(Hexagon::A4_combineir, dl,
+ MVT::i64, MVT::Other,
+ TargetConst0,
+ SDValue(Result_1,0));
+ // Add offset to base.
+ SDNode* Result_3 = CurDAG->getMachineNode(Hexagon::A2_addi, dl, MVT::i32,
+ Base, TargetConstVal,
+ SDValue(Result_1, 1));
+ MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
+ MemOp[0] = LD->getMemOperand();
+ cast<MachineSDNode>(Result_1)->setMemRefs(MemOp, MemOp + 1);
+ const SDValue Froms[] = { SDValue(LD, 0),
+ SDValue(LD, 1),
+ SDValue(LD, 2) };
+ const SDValue Tos[] = { SDValue(Result_2, 0), // Load value.
+ SDValue(Result_3, 0), // New address.
+ SDValue(Result_1, 1) };
+ ReplaceUses(Froms, Tos, 3);
+ return Result_2;
}
EVT LoadedVT = LD->getMemoryVT();
unsigned Opcode = 0;
- // Check for zero ext loads.
- bool zextval = (LD->getExtensionType() == ISD::ZEXTLOAD);
+ // Check for zero extended loads. Treat any-extend loads as zero extended
+ // loads.
+ ISD::LoadExtType ExtType = LD->getExtensionType();
+ bool IsZeroExt = (ExtType == ISD::ZEXTLOAD || ExtType == ISD::EXTLOAD);
// Figure out the opcode.
- const HexagonInstrInfo *TII = Subtarget->getInstrInfo();
+ const HexagonInstrInfo &TII = *HST.getInstrInfo();
if (LoadedVT == MVT::i64) {
- if (TII->isValidAutoIncImm(LoadedVT, Val))
+ if (TII.isValidAutoIncImm(LoadedVT, Val))
Opcode = Hexagon::L2_loadrd_pi;
else
Opcode = Hexagon::L2_loadrd_io;
} else if (LoadedVT == MVT::i32) {
- if (TII->isValidAutoIncImm(LoadedVT, Val))
+ if (TII.isValidAutoIncImm(LoadedVT, Val))
Opcode = Hexagon::L2_loadri_pi;
else
Opcode = Hexagon::L2_loadri_io;
} else if (LoadedVT == MVT::i16) {
- if (TII->isValidAutoIncImm(LoadedVT, Val))
- Opcode = zextval ? Hexagon::L2_loadruh_pi : Hexagon::L2_loadrh_pi;
+ if (TII.isValidAutoIncImm(LoadedVT, Val))
+ Opcode = IsZeroExt ? Hexagon::L2_loadruh_pi : Hexagon::L2_loadrh_pi;
else
- Opcode = zextval ? Hexagon::L2_loadruh_io : Hexagon::L2_loadrh_io;
+ Opcode = IsZeroExt ? Hexagon::L2_loadruh_io : Hexagon::L2_loadrh_io;
} else if (LoadedVT == MVT::i8) {
- if (TII->isValidAutoIncImm(LoadedVT, Val))
- Opcode = zextval ? Hexagon::L2_loadrub_pi : Hexagon::L2_loadrb_pi;
+ if (TII.isValidAutoIncImm(LoadedVT, Val))
+ Opcode = IsZeroExt ? Hexagon::L2_loadrub_pi : Hexagon::L2_loadrb_pi;
else
- Opcode = zextval ? Hexagon::L2_loadrub_io : Hexagon::L2_loadrb_io;
+ Opcode = IsZeroExt ? Hexagon::L2_loadrub_io : Hexagon::L2_loadrb_io;
} else
llvm_unreachable("unknown memory type");
- // For zero ext i64 loads, we need to add combine instructions.
- if (LD->getValueType(0) == MVT::i64 &&
- LD->getExtensionType() == ISD::ZEXTLOAD) {
+ // For zero extended i64 loads, we need to add combine instructions.
+ if (LD->getValueType(0) == MVT::i64 && IsZeroExt)
return SelectIndexedLoadZeroExtend64(LD, Opcode, dl);
- }
- if (LD->getValueType(0) == MVT::i64 &&
- LD->getExtensionType() == ISD::SEXTLOAD) {
- // Handle sign ext i64 loads.
+ // Handle sign extended i64 loads.
+ if (LD->getValueType(0) == MVT::i64 && ExtType == ISD::SEXTLOAD)
return SelectIndexedLoadSignExtend64(LD, Opcode, dl);
- }
- if (TII->isValidAutoIncImm(LoadedVT, Val)) {
+
+ if (TII.isValidAutoIncImm(LoadedVT, Val)) {
SDValue TargetConstVal = CurDAG->getTargetConstant(Val, MVT::i32);
SDNode* Result = CurDAG->getMachineNode(Opcode, dl,
LD->getValueType(0),
// Get the constant value.
int32_t Val = cast<ConstantSDNode>(OffsetNode)->getSExtValue();
EVT StoredVT = ST->getMemoryVT();
+ EVT ValueVT = Value.getValueType();
// Offset value must be within representable range
// and must have correct alignment properties.
- const HexagonInstrInfo *TII = Subtarget->getInstrInfo();
- if (TII->isValidAutoIncImm(StoredVT, Val)) {
- SDValue Ops[] = {Base, CurDAG->getTargetConstant(Val, MVT::i32), Value,
- Chain};
+ const HexagonInstrInfo &TII = *HST.getInstrInfo();
+ if (TII.isValidAutoIncImm(StoredVT, Val)) {
unsigned Opcode = 0;
// Figure out the post inc version of opcode.
else if (StoredVT == MVT::i8) Opcode = Hexagon::S2_storerb_pi;
else llvm_unreachable("unknown memory type");
+ if (ST->isTruncatingStore() && ValueVT.getSizeInBits() == 64) {
+ assert(StoredVT.getSizeInBits() < 64 && "Not a truncating store");
+ Value = CurDAG->getTargetExtractSubreg(Hexagon::subreg_loreg,
+ dl, MVT::i32, Value);
+ }
+ SDValue Ops[] = {Base, CurDAG->getTargetConstant(Val, MVT::i32), Value,
+ Chain};
// Build post increment store.
SDNode* Result = CurDAG->getMachineNode(Opcode, dl, MVT::i32,
MVT::Other, Ops);
}
// Note: Order of operands matches the def of instruction:
- // def STrid : STInst<(outs), (ins MEMri:$addr, DoubleRegs:$src1), ...
+ // def S2_storerd_io
+ // : STInst<(outs), (ins IntRegs:$base, imm:$offset, DoubleRegs:$src1), ...
// and it differs for POST_ST* for instance.
SDValue Ops[] = { Base, CurDAG->getTargetConstant(0, MVT::i32), Value,
Chain};
return Result_2;
}
-
SDNode *HexagonDAGToDAGISel::SelectStore(SDNode *N) {
SDLoc dl(N);
StoreSDNode *ST = cast<StoreSDNode>(N);
return SelectCode(N);
}
-
//
// Map predicate true (encoded as -1 in LLVM) to a XOR.
//
return Result;
}
+SDNode *HexagonDAGToDAGISel::SelectFrameIndex(SDNode *N) {
+ int FX = cast<FrameIndexSDNode>(N)->getIndex();
+ SDValue FI = CurDAG->getTargetFrameIndex(FX, MVT::i32);
+ SDValue Zero = CurDAG->getTargetConstant(0, MVT::i32);
+ SDLoc DL(N);
+
+ SDNode *R = CurDAG->getMachineNode(Hexagon::TFR_FI, DL, MVT::i32, FI, Zero);
+
+ if (N->getHasDebugValue())
+ CurDAG->TransferDbgValues(SDValue(N, 0), SDValue(R, 0));
+ return R;
+}
+
SDNode *HexagonDAGToDAGISel::Select(SDNode *N) {
if (N->isMachineOpcode()) {
return nullptr; // Already selected.
}
-
switch (N->getOpcode()) {
case ISD::Constant:
return SelectConstant(N);
case ISD::ConstantFP:
return SelectConstantFP(N);
+ case ISD::FrameIndex:
+ return SelectFrameIndex(N);
+
case ISD::ADD:
return SelectAdd(N);
}
-//
-// Hexagon_TODO: Five functions for ADDRri?! Surely there must be a better way
-// to define these instructions.
-//
-bool HexagonDAGToDAGISel::SelectADDRri(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return true;
- }
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return true;
-}
-
-
-bool HexagonDAGToDAGISel::SelectADDRriS11_0(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsS11_0_Offset(Offset.getNode()));
- }
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsS11_0_Offset(Offset.getNode()));
-}
-
-
-bool HexagonDAGToDAGISel::SelectADDRriS11_1(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsS11_1_Offset(Offset.getNode()));
- }
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsS11_1_Offset(Offset.getNode()));
-}
-
-
-bool HexagonDAGToDAGISel::SelectADDRriS11_2(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsS11_2_Offset(Offset.getNode()));
- }
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsS11_2_Offset(Offset.getNode()));
-}
-
-
-bool HexagonDAGToDAGISel::SelectADDRriU6_0(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsU6_0_Offset(Offset.getNode()));
- }
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsU6_0_Offset(Offset.getNode()));
-}
-
-
-bool HexagonDAGToDAGISel::SelectADDRriU6_1(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsU6_1_Offset(Offset.getNode()));
- }
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsU6_1_Offset(Offset.getNode()));
-}
-
-
-bool HexagonDAGToDAGISel::SelectADDRriU6_2(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsU6_2_Offset(Offset.getNode()));
- }
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsU6_2_Offset(Offset.getNode()));
-}
-
-
-bool HexagonDAGToDAGISel::SelectMEMriS11_2(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
-
- if (Addr.getOpcode() != ISD::ADD) {
- return(SelectADDRriS11_2(Addr, Base, Offset));
- }
-
- return SelectADDRriS11_2(Addr, Base, Offset);
-}
-
-
-bool HexagonDAGToDAGISel::SelectADDRriS11_3(SDValue& Addr, SDValue &Base,
- SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsS11_3_Offset(Offset.getNode()));
- }
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return (IsS11_3_Offset(Offset.getNode()));
-}
-
-bool HexagonDAGToDAGISel::SelectADDRrr(SDValue &Addr, SDValue &R1,
- SDValue &R2) {
- if (Addr.getOpcode() == ISD::FrameIndex) return false;
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (Addr.getOpcode() == ISD::ADD) {
- if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1)))
- if (isInt<13>(CN->getSExtValue()))
- return false; // Let the reg+imm pattern catch this!
- R1 = Addr.getOperand(0);
- R2 = Addr.getOperand(1);
- return true;
- }
-
- R1 = Addr;
-
- return true;
-}
-
-
-// Handle generic address case. It is accessed from inlined asm =m constraints,
-// which could have any kind of pointer.
-bool HexagonDAGToDAGISel::SelectAddr(SDNode *Op, SDValue Addr,
- SDValue &Base, SDValue &Offset) {
- if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress)
- return false; // Direct calls.
-
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return true;
- }
-
- if (Addr.getOpcode() == ISD::ADD) {
- Base = Addr.getOperand(0);
- Offset = Addr.getOperand(1);
- return true;
- }
-
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return true;
-}
-
-
bool HexagonDAGToDAGISel::
SelectInlineAsmMemoryOperand(const SDValue &Op, char ConstraintCode,
std::vector<SDValue> &OutOps) {
- SDValue Op0, Op1;
+ SDValue Inp = Op, Res;
switch (ConstraintCode) {
case 'o': // Offsetable.
case 'v': // Not offsetable.
- default: return true;
+ default:
+ return true;
case 'm': // Memory.
- if (!SelectAddr(Op.getNode(), Op, Op0, Op1))
- return true;
+ if (SelectAddrFI(Inp, Res))
+ OutOps.push_back(Res);
+ else
+ OutOps.push_back(Inp);
break;
}
- OutOps.push_back(Op0);
- OutOps.push_back(Op1);
- return false;
-}
-
-//===--------------------------------------------------------------------===//
-// Return true if the non-GP-relative global address can be folded.
-//===--------------------------------------------------------------------===//
-inline bool HexagonDAGToDAGISel::foldGlobalAddress(SDValue &N, SDValue &R) {
- return foldGlobalAddressImpl(N, R, false);
-}
-
-//===--------------------------------------------------------------------===//
-// Return true if the GP-relative global address can be folded.
-//===--------------------------------------------------------------------===//
-inline bool HexagonDAGToDAGISel::foldGlobalAddressGP(SDValue &N, SDValue &R) {
- return foldGlobalAddressImpl(N, R, true);
-}
-
-//===--------------------------------------------------------------------===//
-// Fold offset of the global address if number of uses are below threshold.
-//===--------------------------------------------------------------------===//
-bool HexagonDAGToDAGISel::foldGlobalAddressImpl(SDValue &N, SDValue &R,
- bool ShouldLookForGP) {
- if (N.getOpcode() == ISD::ADD) {
- SDValue N0 = N.getOperand(0);
- SDValue N1 = N.getOperand(1);
- if ((ShouldLookForGP && (N0.getOpcode() == HexagonISD::CONST32_GP)) ||
- (!ShouldLookForGP && (N0.getOpcode() == HexagonISD::CONST32))) {
- ConstantSDNode *Const = dyn_cast<ConstantSDNode>(N1);
- GlobalAddressSDNode *GA =
- dyn_cast<GlobalAddressSDNode>(N0.getOperand(0));
-
- if (Const && GA &&
- (GA->getOpcode() == ISD::TargetGlobalAddress)) {
- if ((N0.getOpcode() == HexagonISD::CONST32) &&
- !hasNumUsesBelowThresGA(GA))
- return false;
- R = CurDAG->getTargetGlobalAddress(GA->getGlobal(),
- SDLoc(Const),
- N.getValueType(),
- GA->getOffset() +
- (uint64_t)Const->getSExtValue());
- return true;
- }
- }
- }
+ OutOps.push_back(CurDAG->getTargetConstant(0, MVT::i32));
return false;
}
return false;
}
-bool HexagonDAGToDAGISel::isValueExtension(SDValue const &Val,
- unsigned FromBits, SDValue &Src) {
+bool HexagonDAGToDAGISel::isValueExtension(const SDValue &Val,
+ unsigned FromBits, SDValue &Src) {
unsigned Opc = Val.getOpcode();
switch (Opc) {
case ISD::SIGN_EXTEND:
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