/// corresponds to X86::PSRLDQ.
FSRL,
- /// FILD, FILD_FLAG - This instruction implements SINT_TO_FP with the
- /// integer source in memory and FP reg result. This corresponds to the
- /// X86::FILD*m instructions. It has three inputs (token chain, address,
- /// and source type) and two outputs (FP value and token chain). FILD_FLAG
- /// also produces a flag).
- FILD,
- FILD_FLAG,
-
- /// FP_TO_INT*_IN_MEM - This instruction implements FP_TO_SINT with the
- /// integer destination in memory and a FP reg source. This corresponds
- /// to the X86::FIST*m instructions and the rounding mode change stuff. It
- /// has two inputs (token chain and address) and two outputs (int value
- /// and token chain).
- FP_TO_INT16_IN_MEM,
- FP_TO_INT32_IN_MEM,
- FP_TO_INT64_IN_MEM,
-
- /// FLD - This instruction implements an extending load to FP stack slots.
- /// This corresponds to the X86::FLD32m / X86::FLD64m. It takes a chain
- /// operand, ptr to load from, and a ValueType node indicating the type
- /// to load to.
- FLD,
-
- /// FST - This instruction implements a truncating store to FP stack
- /// slots. This corresponds to the X86::FST32m / X86::FST64m. It takes a
- /// chain operand, value to store, address, and a ValueType to store it
- /// as.
- FST,
-
/// CALL - These operations represent an abstract X86 call
/// instruction, which includes a bunch of information. In particular the
/// operands of these node are:
///
CALL,
- /// RDTSC_DAG - This operation implements the lowering for
+ /// RDTSC_DAG - This operation implements the lowering for
/// readcyclecounter
RDTSC_DAG,
/// relative displacements.
WrapperRIP,
- /// MOVQ2DQ - Copies a 64-bit value from a vector to another vector.
- /// Can be used to move a vector value from a MMX register to a XMM
- /// register.
+ /// MOVQ2DQ - Copies a 64-bit value from an MMX vector to the low word
+ /// of an XMM vector, with the high word zero filled.
MOVQ2DQ,
+ /// MOVDQ2Q - Copies a 64-bit value from the low word of an XMM vector
+ /// to an MMX vector. If you think this is too close to the previous
+ /// mnemonic, so do I; blame Intel.
+ MOVDQ2Q,
+
/// PEXTRB - Extract an 8-bit value from a vector and zero extend it to
/// i32, corresponds to X86::PEXTRB.
PEXTRB,
// TLSADDR - Thread Local Storage.
TLSADDR,
-
+
// TLSCALL - Thread Local Storage. When calling to an OS provided
// thunk at the address from an earlier relocation.
TLSCALL,
- // SegmentBaseAddress - The address segment:0
- SegmentBaseAddress,
-
// EH_RETURN - Exception Handling helpers.
EH_RETURN,
-
+
/// TC_RETURN - Tail call return.
/// operand #0 chain
/// operand #1 callee (register or absolute)
/// operand #3 optional in flag
TC_RETURN,
- // LCMPXCHG_DAG, LCMPXCHG8_DAG - Compare and swap.
- LCMPXCHG_DAG,
- LCMPXCHG8_DAG,
-
- // FNSTCW16m - Store FP control world into i16 memory.
- FNSTCW16m,
-
// VZEXT_MOVL - Vector move low and zero extend.
VZEXT_MOVL,
- // VZEXT_LOAD - Load, scalar_to_vector, and zero extend.
- VZEXT_LOAD,
-
// VSHL, VSRL - Vector logical left / right shift.
VSHL, VSRL,
// CMPPD, CMPPS - Vector double/float comparison.
// CMPPD, CMPPS - Vector double/float comparison.
CMPPD, CMPPS,
-
+
// PCMP* - Vector integer comparisons.
PCMPEQB, PCMPEQW, PCMPEQD, PCMPEQQ,
PCMPGTB, PCMPGTW, PCMPGTD, PCMPGTQ,
// MUL_IMM - X86 specific multiply by immediate.
MUL_IMM,
-
+
// PTEST - Vector bitwise comparisons
PTEST,
MOVLHPD,
MOVHLPS,
MOVHLPD,
+ MOVLPS,
+ MOVLPD,
MOVSD,
MOVSS,
UNPCKLPS,
// with control flow.
VASTART_SAVE_XMM_REGS,
- // MINGW_ALLOCA - MingW's __alloca call to do stack probing.
- MINGW_ALLOCA,
+ // WIN_ALLOCA - Windows's _chkstk call to do stack probing.
+ WIN_ALLOCA,
+
+ // Memory barrier
+ MEMBARRIER,
+ MFENCE,
+ SFENCE,
+ LFENCE,
- // ATOMADD64_DAG, ATOMSUB64_DAG, ATOMOR64_DAG, ATOMAND64_DAG,
- // ATOMXOR64_DAG, ATOMNAND64_DAG, ATOMSWAP64_DAG -
+ // ATOMADD64_DAG, ATOMSUB64_DAG, ATOMOR64_DAG, ATOMAND64_DAG,
+ // ATOMXOR64_DAG, ATOMNAND64_DAG, ATOMSWAP64_DAG -
// Atomic 64-bit binary operations.
ATOMADD64_DAG = ISD::FIRST_TARGET_MEMORY_OPCODE,
ATOMSUB64_DAG,
ATOMAND64_DAG,
ATOMNAND64_DAG,
ATOMSWAP64_DAG,
-
- // Memory barrier
- MEMBARRIER,
- MFENCE,
- SFENCE,
- LFENCE
+
+ // LCMPXCHG_DAG, LCMPXCHG8_DAG - Compare and swap.
+ LCMPXCHG_DAG,
+ LCMPXCHG8_DAG,
+
+ // VZEXT_LOAD - Load, scalar_to_vector, and zero extend.
+ VZEXT_LOAD,
+
+ // FNSTCW16m - Store FP control world into i16 memory.
+ FNSTCW16m,
+
+ /// FP_TO_INT*_IN_MEM - This instruction implements FP_TO_SINT with the
+ /// integer destination in memory and a FP reg source. This corresponds
+ /// to the X86::FIST*m instructions and the rounding mode change stuff. It
+ /// has two inputs (token chain and address) and two outputs (int value
+ /// and token chain).
+ FP_TO_INT16_IN_MEM,
+ FP_TO_INT32_IN_MEM,
+ FP_TO_INT64_IN_MEM,
+
+ /// FILD, FILD_FLAG - This instruction implements SINT_TO_FP with the
+ /// integer source in memory and FP reg result. This corresponds to the
+ /// X86::FILD*m instructions. It has three inputs (token chain, address,
+ /// and source type) and two outputs (FP value and token chain). FILD_FLAG
+ /// also produces a flag).
+ FILD,
+ FILD_FLAG,
+
+ /// FLD - This instruction implements an extending load to FP stack slots.
+ /// This corresponds to the X86::FLD32m / X86::FLD64m. It takes a chain
+ /// operand, ptr to load from, and a ValueType node indicating the type
+ /// to load to.
+ FLD,
+
+ /// FST - This instruction implements a truncating store to FP stack
+ /// slots. This corresponds to the X86::FST32m / X86::FST64m. It takes a
+ /// chain operand, value to store, address, and a ValueType to store it
+ /// as.
+ FST,
+
+ /// VAARG_64 - This instruction grabs the address of the next argument
+ /// from a va_list. (reads and modifies the va_list in memory)
+ VAARG_64
// WARNING: Do not add anything in the end unless you want the node to
// have memop! In fact, starting from ATOMADD64_DAG all opcodes will be
public:
explicit X86TargetLowering(X86TargetMachine &TM);
- /// getPICBaseSymbol - Return the X86-32 PIC base.
- MCSymbol *getPICBaseSymbol(const MachineFunction *MF, MCContext &Ctx) const;
-
virtual unsigned getJumpTableEncoding() const;
virtual const MCExpr *
LowerCustomJumpTableEntry(const MachineJumpTableInfo *MJTI,
const MachineBasicBlock *MBB, unsigned uid,
MCContext &Ctx) const;
-
+
/// getPICJumpTableRelocaBase - Returns relocation base for the given PIC
/// jumptable.
virtual SDValue getPICJumpTableRelocBase(SDValue Table,
virtual const MCExpr *
getPICJumpTableRelocBaseExpr(const MachineFunction *MF,
unsigned JTI, MCContext &Ctx) const;
-
+
/// getStackPtrReg - Return the stack pointer register we are using: either
/// ESP or RSP.
unsigned getStackPtrReg() const { return X86StackPtr; }
virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
SelectionDAG &DAG) const;
-
+
virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
/// isTypeDesirableForOp - Return true if the target has native support for
EmitInstrWithCustomInserter(MachineInstr *MI,
MachineBasicBlock *MBB) const;
-
+
/// getTargetNodeName - This method returns the name of a target specific
/// DAG node.
virtual const char *getTargetNodeName(unsigned Opcode) const;
/// getSetCCResultType - Return the ISD::SETCC ValueType
virtual MVT::SimpleValueType getSetCCResultType(EVT VT) const;
- /// computeMaskedBitsForTargetNode - Determine which of the bits specified
- /// in Mask are known to be either zero or one and return them in the
+ /// computeMaskedBitsForTargetNode - Determine which of the bits specified
+ /// in Mask are known to be either zero or one and return them in the
/// KnownZero/KnownOne bitsets.
virtual void computeMaskedBitsForTargetNode(const SDValue Op,
const APInt &Mask,
- APInt &KnownZero,
+ APInt &KnownZero,
APInt &KnownOne,
const SelectionDAG &DAG,
unsigned Depth = 0) const;
+ // ComputeNumSignBitsForTargetNode - Determine the number of bits in the
+ // operation that are sign bits.
+ virtual unsigned ComputeNumSignBitsForTargetNode(SDValue Op,
+ unsigned Depth) const;
+
virtual bool
isGAPlusOffset(SDNode *N, const GlobalValue* &GA, int64_t &Offset) const;
-
+
SDValue getReturnAddressFrameIndex(SelectionDAG &DAG) const;
virtual bool ExpandInlineAsm(CallInst *CI) const;
-
+
ConstraintType getConstraintType(const std::string &Constraint) const;
-
- std::vector<unsigned>
+
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ virtual ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
+ std::vector<unsigned>
getRegClassForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;
char ConstraintLetter,
std::vector<SDValue> &Ops,
SelectionDAG &DAG) const;
-
+
/// getRegForInlineAsmConstraint - Given a physical register constraint
/// (e.g. {edx}), return the register number and the register class for the
/// register. This should only be used for C_Register constraints. On
/// error, this returns a register number of 0.
- std::pair<unsigned, const TargetRegisterClass*>
+ std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;
-
+
/// isLegalAddressingMode - Return true if the addressing mode represented
/// by AM is legal for this target, for a load/store of the specified type.
virtual bool isLegalAddressingMode(const AddrMode &AM, const Type *Ty)const;
// shrink long double fp constant since fldt is very slow.
return !X86ScalarSSEf64 || VT == MVT::f80;
}
-
+
const X86Subtarget* getSubtarget() const {
return Subtarget;
}
/// X86StackPtr - X86 physical register used as stack ptr.
unsigned X86StackPtr;
-
- /// X86ScalarSSEf32, X86ScalarSSEf64 - Select between SSE or x87
+
+ /// X86ScalarSSEf32, X86ScalarSSEf64 - Select between SSE or x87
/// floating point ops.
/// When SSE is available, use it for f32 operations.
/// When SSE2 is available, use it for f64 operations.
SDValue Chain, bool IsTailCall, bool Is64Bit,
int FPDiff, DebugLoc dl) const;
- CCAssignFn *CCAssignFnForNode(CallingConv::ID CallConv) const;
unsigned GetAlignedArgumentStackSize(unsigned StackSize,
SelectionDAG &DAG) const;
SDValue LowerShift(SDValue Op, SelectionDAG &DAG) const;
SDValue BuildFILD(SDValue Op, EVT SrcVT, SDValue Chain, SDValue StackSlot,
SelectionDAG &DAG) const;
- SDValue LowerBIT_CONVERT(SDValue op, SelectionDAG &DAG) const;
+ SDValue LowerBITCAST(SDValue op, SelectionDAG &DAG) const;
SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerUINT_TO_FP(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerUINT_TO_FP_i64(SDValue Op, SelectionDAG &DAG) const;
const SmallVectorImpl<SDValue> &OutVals,
DebugLoc dl, SelectionDAG &DAG) const;
+ virtual bool isUsedByReturnOnly(SDNode *N) const;
+
virtual bool
CanLowerReturn(CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
MachineBasicBlock *EmitPCMP(MachineInstr *BInstr, MachineBasicBlock *BB,
unsigned argNum, bool inMem) const;
+ /// Utility functions to emit monitor and mwait instructions. These
+ /// need to make sure that the arguments to the intrinsic are in the
+ /// correct registers.
+ MachineBasicBlock *EmitMonitor(MachineInstr *MI,
+ MachineBasicBlock *BB) const;
+ MachineBasicBlock *EmitMwait(MachineInstr *MI, MachineBasicBlock *BB) const;
+
/// Utility function to emit atomic bitwise operations (and, or, xor).
/// It takes the bitwise instruction to expand, the associated machine basic
/// block, and the associated X86 opcodes for reg/reg and reg/imm.
unsigned immOpcL,
unsigned immOpcH,
bool invSrc = false) const;
-
+
/// Utility function to emit atomic min and max. It takes the min/max
/// instruction to expand, the associated basic block, and the associated
/// cmov opcode for moving the min or max value.
MachineBasicBlock *BB,
unsigned cmovOpc) const;
+ // Utility function to emit the low-level va_arg code for X86-64.
+ MachineBasicBlock *EmitVAARG64WithCustomInserter(
+ MachineInstr *MI,
+ MachineBasicBlock *MBB) const;
+
/// Utility function to emit the xmm reg save portion of va_start.
MachineBasicBlock *EmitVAStartSaveXMMRegsWithCustomInserter(
MachineInstr *BInstr,
MachineBasicBlock *EmitLoweredSelect(MachineInstr *I,
MachineBasicBlock *BB) const;
- MachineBasicBlock *EmitLoweredMingwAlloca(MachineInstr *MI,
+ MachineBasicBlock *EmitLoweredWinAlloca(MachineInstr *MI,
MachineBasicBlock *BB) const;
-
+
MachineBasicBlock *EmitLoweredTLSCall(MachineInstr *MI,
MachineBasicBlock *BB) const;
+ MachineBasicBlock *emitLoweredTLSAddr(MachineInstr *MI,
+ MachineBasicBlock *BB) const;
+
/// Emit nodes that will be selected as "test Op0,Op0", or something
/// equivalent, for use with the given x86 condition code.
SDValue EmitTest(SDValue Op0, unsigned X86CC, SelectionDAG &DAG) const;
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