#include "X86RegisterInfo.h"
#include "X86MachineFunctionInfo.h"
#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetOptions.h"
#include "llvm/CodeGen/FastISel.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/CallingConvLower.h"
/// 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/TAILCALL - These operations represent an abstract X86 call
+ /// CALL - These operations represent an abstract X86 call
/// instruction, which includes a bunch of information. In particular the
/// operands of these node are:
///
/// #1 - The first register result value (optional)
/// #2 - The second register result value (optional)
///
- /// The CALL vs TAILCALL distinction boils down to whether the callee is
- /// known not to modify the caller's stack frame, as is standard with
- /// LLVM.
CALL,
- TAILCALL,
-
- /// RDTSC_DAG - This operation implements the lowering for
+
+ /// RDTSC_DAG - This operation implements the lowering for
/// readcyclecounter
RDTSC_DAG,
/// X86 bit-test instructions.
BT,
- /// X86 SetCC. Operand 1 is condition code, and operand 2 is the flag
+ /// X86 SetCC. Operand 0 is condition code, and operand 1 is the flag
/// operand produced by a CMP instruction.
SETCC,
- /// X86 conditional moves. Operand 1 and operand 2 are the two values
- /// to select from (operand 1 is a R/W operand). Operand 3 is the
- /// condition code, and operand 4 is the flag operand produced by a CMP
- /// or TEST instruction. It also writes a flag result.
+ // Same as SETCC except it's materialized with a sbb and the value is all
+ // one's or all zero's.
+ SETCC_CARRY,
+
+ /// X86 conditional moves. Operand 0 and operand 1 are the two values
+ /// to select from. Operand 2 is the condition code, and operand 3 is the
+ /// flag operand produced by a CMP or TEST instruction. It also writes a
+ /// flag result.
CMOV,
- /// X86 conditional branches. Operand 1 is the chain operand, operand 2
- /// is the block to branch if condition is true, operand 3 is the
- /// condition code, and operand 4 is the flag operand produced by a CMP
+ /// X86 conditional branches. Operand 0 is the chain operand, operand 1
+ /// is the block to branch if condition is true, operand 2 is the
+ /// condition code, and operand 3 is the flag operand produced by a CMP
/// or TEST instruction.
BRCOND,
- /// Return with a flag operand. Operand 1 is the chain operand, operand
- /// 2 is the number of bytes of stack to pop.
+ /// Return with a flag operand. Operand 0 is the chain operand, operand
+ /// 1 is the number of bytes of stack to pop.
RET_FLAG,
/// REP_STOS - Repeat fill, corresponds to X86::REP_STOSx.
/// relative displacements.
WrapperRIP,
+ /// 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,
/// PINSRW - Insert the lower 16-bits of a 32-bit value to a vector,
/// corresponds to X86::PINSRW.
- PINSRW,
+ PINSRW, MMX_PINSRW,
+
+ /// PSHUFB - Shuffle 16 8-bit values within a vector.
+ PSHUFB,
/// FMAX, FMIN - Floating point max and min.
///
/// in order to obtain suitable precision.
FRSQRT, FRCP,
- // TLSADDR, THREAThread - Thread Local Storage.
- TLSADDR, THREAD_POINTER,
+ // TLSADDR - Thread Local Storage.
+ TLSADDR,
+
+ // TLSCALL - Thread Local Storage. When calling to an OS provided
+ // thunk at the address from an earlier relocation.
+ TLSCALL,
// 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,
+ // VZEXT_MOVL - Vector move low and zero extend.
+ VZEXT_MOVL,
+
+ // VSHL, VSRL - Vector logical left / right shift.
+ VSHL, VSRL,
- // ATOMADD64_DAG, ATOMSUB64_DAG, ATOMOR64_DAG, ATOMAND64_DAG,
- // ATOMXOR64_DAG, ATOMNAND64_DAG, ATOMSWAP64_DAG -
+ // 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,
+
+ // ADD, SUB, SMUL, UMUL, etc. - Arithmetic operations with FLAGS results.
+ ADD, SUB, SMUL, UMUL,
+ INC, DEC, OR, XOR, AND,
+
+ // MUL_IMM - X86 specific multiply by immediate.
+ MUL_IMM,
+
+ // PTEST - Vector bitwise comparisons
+ PTEST,
+
+ // TESTP - Vector packed fp sign bitwise comparisons
+ TESTP,
+
+ // Several flavors of instructions with vector shuffle behaviors.
+ PALIGN,
+ PSHUFD,
+ PSHUFHW,
+ PSHUFLW,
+ PSHUFHW_LD,
+ PSHUFLW_LD,
+ SHUFPD,
+ SHUFPS,
+ MOVDDUP,
+ MOVSHDUP,
+ MOVSLDUP,
+ MOVSHDUP_LD,
+ MOVSLDUP_LD,
+ MOVLHPS,
+ MOVLHPD,
+ MOVHLPS,
+ MOVHLPD,
+ MOVLPS,
+ MOVLPD,
+ MOVSD,
+ MOVSS,
+ UNPCKLPS,
+ UNPCKLPD,
+ UNPCKHPS,
+ UNPCKHPD,
+ PUNPCKLBW,
+ PUNPCKLWD,
+ PUNPCKLDQ,
+ PUNPCKLQDQ,
+ PUNPCKHBW,
+ PUNPCKHWD,
+ PUNPCKHDQ,
+ PUNPCKHQDQ,
+
+ // VASTART_SAVE_XMM_REGS - Save xmm argument registers to the stack,
+ // according to %al. An operator is needed so that this can be expanded
+ // with control flow.
+ VASTART_SAVE_XMM_REGS,
+
+ // 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 -
// Atomic 64-bit binary operations.
- ATOMADD64_DAG,
+ ATOMADD64_DAG = ISD::FIRST_TARGET_MEMORY_OPCODE,
ATOMSUB64_DAG,
ATOMOR64_DAG,
ATOMXOR64_DAG,
ATOMNAND64_DAG,
ATOMSWAP64_DAG,
+ // 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,
- // VZEXT_MOVL - Vector move low and zero extend.
- VZEXT_MOVL,
+ /// 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,
- // VZEXT_LOAD - Load, scalar_to_vector, and zero extend.
- VZEXT_LOAD,
+ /// 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,
- // VSHL, VSRL - Vector logical left / right shift.
- VSHL, VSRL,
-
- // CMPPD, CMPPS - Vector double/float comparison.
- CMPPD, CMPPS,
-
- // PCMP* - Vector integer comparisons.
- PCMPEQB, PCMPEQW, PCMPEQD, PCMPEQQ,
- PCMPGTB, PCMPGTW, PCMPGTD, PCMPGTQ,
+ /// 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,
- // ADD, SUB, SMUL, UMUL - Arithmetic operations with overflow/carry
- // intrinsics.
- ADD, SUB, SMUL, UMUL
+ /// 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
+ // thought as target memory ops!
};
}
namespace X86 {
/// isPSHUFDMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to PSHUFD.
- bool isPSHUFDMask(SDNode *N);
+ bool isPSHUFDMask(ShuffleVectorSDNode *N);
/// isPSHUFHWMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to PSHUFD.
- bool isPSHUFHWMask(SDNode *N);
+ bool isPSHUFHWMask(ShuffleVectorSDNode *N);
/// isPSHUFLWMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to PSHUFD.
- bool isPSHUFLWMask(SDNode *N);
+ bool isPSHUFLWMask(ShuffleVectorSDNode *N);
/// isSHUFPMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to SHUFP*.
- bool isSHUFPMask(SDNode *N);
+ bool isSHUFPMask(ShuffleVectorSDNode *N);
/// isMOVHLPSMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to MOVHLPS.
- bool isMOVHLPSMask(SDNode *N);
+ bool isMOVHLPSMask(ShuffleVectorSDNode *N);
/// isMOVHLPS_v_undef_Mask - Special case of isMOVHLPSMask for canonical form
/// of vector_shuffle v, v, <2, 3, 2, 3>, i.e. vector_shuffle v, undef,
/// <2, 3, 2, 3>
- bool isMOVHLPS_v_undef_Mask(SDNode *N);
+ bool isMOVHLPS_v_undef_Mask(ShuffleVectorSDNode *N);
/// isMOVLPMask - Return true if the specified VECTOR_SHUFFLE operand
- /// specifies a shuffle of elements that is suitable for input to MOVLP{S|D}.
- bool isMOVLPMask(SDNode *N);
+ /// specifies a shuffle of elements that is suitable for MOVLP{S|D}.
+ bool isMOVLPMask(ShuffleVectorSDNode *N);
/// isMOVHPMask - Return true if the specified VECTOR_SHUFFLE operand
- /// specifies a shuffle of elements that is suitable for input to MOVHP{S|D}
+ /// specifies a shuffle of elements that is suitable for MOVHP{S|D}.
/// as well as MOVLHPS.
- bool isMOVHPMask(SDNode *N);
+ bool isMOVLHPSMask(ShuffleVectorSDNode *N);
/// isUNPCKLMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to UNPCKL.
- bool isUNPCKLMask(SDNode *N, bool V2IsSplat = false);
+ bool isUNPCKLMask(ShuffleVectorSDNode *N, bool V2IsSplat = false);
/// isUNPCKHMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to UNPCKH.
- bool isUNPCKHMask(SDNode *N, bool V2IsSplat = false);
+ bool isUNPCKHMask(ShuffleVectorSDNode *N, bool V2IsSplat = false);
/// isUNPCKL_v_undef_Mask - Special case of isUNPCKLMask for canonical form
/// of vector_shuffle v, v, <0, 4, 1, 5>, i.e. vector_shuffle v, undef,
/// <0, 0, 1, 1>
- bool isUNPCKL_v_undef_Mask(SDNode *N);
+ bool isUNPCKL_v_undef_Mask(ShuffleVectorSDNode *N);
/// isUNPCKH_v_undef_Mask - Special case of isUNPCKHMask for canonical form
/// of vector_shuffle v, v, <2, 6, 3, 7>, i.e. vector_shuffle v, undef,
/// <2, 2, 3, 3>
- bool isUNPCKH_v_undef_Mask(SDNode *N);
+ bool isUNPCKH_v_undef_Mask(ShuffleVectorSDNode *N);
/// isMOVLMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to MOVSS,
/// MOVSD, and MOVD, i.e. setting the lowest element.
- bool isMOVLMask(SDNode *N);
+ bool isMOVLMask(ShuffleVectorSDNode *N);
/// isMOVSHDUPMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to MOVSHDUP.
- bool isMOVSHDUPMask(SDNode *N);
+ bool isMOVSHDUPMask(ShuffleVectorSDNode *N);
/// isMOVSLDUPMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to MOVSLDUP.
- bool isMOVSLDUPMask(SDNode *N);
-
- /// isSplatMask - Return true if the specified VECTOR_SHUFFLE operand
- /// specifies a splat of a single element.
- bool isSplatMask(SDNode *N);
-
- /// isSplatLoMask - Return true if the specified VECTOR_SHUFFLE operand
- /// specifies a splat of zero element.
- bool isSplatLoMask(SDNode *N);
+ bool isMOVSLDUPMask(ShuffleVectorSDNode *N);
/// isMOVDDUPMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to MOVDDUP.
- bool isMOVDDUPMask(SDNode *N);
+ bool isMOVDDUPMask(ShuffleVectorSDNode *N);
+
+ /// isPALIGNRMask - Return true if the specified VECTOR_SHUFFLE operand
+ /// specifies a shuffle of elements that is suitable for input to PALIGNR.
+ bool isPALIGNRMask(ShuffleVectorSDNode *N);
/// getShuffleSHUFImmediate - Return the appropriate immediate to shuffle
/// the specified isShuffleMask VECTOR_SHUFFLE mask with PSHUF* and SHUFP*
unsigned getShuffleSHUFImmediate(SDNode *N);
/// getShufflePSHUFHWImmediate - Return the appropriate immediate to shuffle
- /// the specified isShuffleMask VECTOR_SHUFFLE mask with PSHUFHW
- /// instructions.
+ /// the specified VECTOR_SHUFFLE mask with PSHUFHW instruction.
unsigned getShufflePSHUFHWImmediate(SDNode *N);
- /// getShufflePSHUFKWImmediate - Return the appropriate immediate to shuffle
- /// the specified isShuffleMask VECTOR_SHUFFLE mask with PSHUFLW
- /// instructions.
+ /// getShufflePSHUFLWImmediate - Return the appropriate immediate to shuffle
+ /// the specified VECTOR_SHUFFLE mask with PSHUFLW instruction.
unsigned getShufflePSHUFLWImmediate(SDNode *N);
+
+ /// getShufflePALIGNRImmediate - Return the appropriate immediate to shuffle
+ /// the specified VECTOR_SHUFFLE mask with the PALIGNR instruction.
+ unsigned getShufflePALIGNRImmediate(SDNode *N);
+
+ /// isZeroNode - Returns true if Elt is a constant zero or a floating point
+ /// constant +0.0.
+ bool isZeroNode(SDValue Elt);
+
+ /// isOffsetSuitableForCodeModel - Returns true of the given offset can be
+ /// fit into displacement field of the instruction.
+ bool isOffsetSuitableForCodeModel(int64_t Offset, CodeModel::Model M,
+ bool hasSymbolicDisplacement = true);
}
//===--------------------------------------------------------------------===//
// X86TargetLowering - X86 Implementation of the TargetLowering interface
class X86TargetLowering : public TargetLowering {
- int VarArgsFrameIndex; // FrameIndex for start of varargs area.
- int RegSaveFrameIndex; // X86-64 vararg func register save area.
- unsigned VarArgsGPOffset; // X86-64 vararg func int reg offset.
- unsigned VarArgsFPOffset; // X86-64 vararg func fp reg offset.
- int BytesToPopOnReturn; // Number of arg bytes ret should pop.
- int BytesCallerReserves; // Number of arg bytes caller makes.
-
public:
explicit X86TargetLowering(X86TargetMachine &TM);
+ 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.
- SDValue getPICJumpTableRelocBase(SDValue Table,
- SelectionDAG &DAG) const;
-
- // Return the number of bytes that a function should pop when it returns (in
- // addition to the space used by the return address).
- //
- unsigned getBytesToPopOnReturn() const { return BytesToPopOnReturn; }
-
- // Return the number of bytes that the caller reserves for arguments passed
- // to this function.
- unsigned getBytesCallerReserves() const { return BytesCallerReserves; }
-
+ virtual SDValue getPICJumpTableRelocBase(SDValue Table,
+ SelectionDAG &DAG) const;
+ 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; }
/// getOptimalMemOpType - Returns the target specific optimal type for load
/// and store operations as a result of memset, memcpy, and memmove
- /// lowering. It returns MVT::iAny if SelectionDAG should be responsible for
- /// determining it.
- virtual
- MVT getOptimalMemOpType(uint64_t Size, unsigned Align,
- bool isSrcConst, bool isSrcStr) const;
-
+ /// lowering. If DstAlign is zero that means it's safe to destination
+ /// alignment can satisfy any constraint. Similarly if SrcAlign is zero it
+ /// means there isn't a need to check it against alignment requirement,
+ /// probably because the source does not need to be loaded. If
+ /// 'NonScalarIntSafe' is true, that means it's safe to return a
+ /// non-scalar-integer type, e.g. empty string source, constant, or loaded
+ /// from memory. 'MemcpyStrSrc' indicates whether the memcpy source is
+ /// constant so it does not need to be loaded.
+ /// It returns EVT::Other if the type should be determined using generic
+ /// target-independent logic.
+ virtual EVT
+ getOptimalMemOpType(uint64_t Size, unsigned DstAlign, unsigned SrcAlign,
+ bool NonScalarIntSafe, bool MemcpyStrSrc,
+ MachineFunction &MF) const;
+
+ /// allowsUnalignedMemoryAccesses - Returns true if the target allows
+ /// unaligned memory accesses. of the specified type.
+ virtual bool allowsUnalignedMemoryAccesses(EVT VT) const {
+ return true;
+ }
+
/// LowerOperation - Provide custom lowering hooks for some operations.
///
- virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
+ virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
/// ReplaceNodeResults - Replace the results of node with an illegal result
/// type with new values built out of custom code.
///
virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
- SelectionDAG &DAG);
+ SelectionDAG &DAG) const;
+
-
virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
- virtual MachineBasicBlock *EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *MBB);
+ /// isTypeDesirableForOp - Return true if the target has native support for
+ /// the specified value type and it is 'desirable' to use the type for the
+ /// given node type. e.g. On x86 i16 is legal, but undesirable since i16
+ /// instruction encodings are longer and some i16 instructions are slow.
+ virtual bool isTypeDesirableForOp(unsigned Opc, EVT VT) const;
+
+ /// isTypeDesirable - Return true if the target has native support for the
+ /// specified value type and it is 'desirable' to use the type. e.g. On x86
+ /// i16 is legal, but undesirable since i16 instruction encodings are longer
+ /// and some i16 instructions are slow.
+ virtual bool IsDesirableToPromoteOp(SDValue Op, EVT &PVT) const;
+
+ virtual MachineBasicBlock *
+ 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 getSetCCResultType(const SDValue &) const;
+ 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, GlobalValue* &GA, int64_t &Offset) const;
-
- SDValue getReturnAddressFrameIndex(SelectionDAG &DAG);
+ 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,
- MVT VT) const;
+ EVT VT) const;
- virtual const char *LowerXConstraint(MVT ConstraintVT) const;
+ virtual const char *LowerXConstraint(EVT ConstraintVT) const;
/// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
/// vector. If it is invalid, don't add anything to Ops. If hasMemory is
/// being processed is 'm'.
virtual void LowerAsmOperandForConstraint(SDValue Op,
char ConstraintLetter,
- bool hasMemory,
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,
- MVT VT) const;
-
+ 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;
/// type Ty1 to type Ty2. e.g. On x86 it's free to truncate a i32 value in
/// register EAX to i16 by referencing its sub-register AX.
virtual bool isTruncateFree(const Type *Ty1, const Type *Ty2) const;
- virtual bool isTruncateFree(MVT VT1, MVT VT2) const;
-
+ virtual bool isTruncateFree(EVT VT1, EVT VT2) const;
+
+ /// isZExtFree - Return true if any actual instruction that defines a
+ /// value of type Ty1 implicit zero-extends the value to Ty2 in the result
+ /// register. This does not necessarily include registers defined in
+ /// unknown ways, such as incoming arguments, or copies from unknown
+ /// virtual registers. Also, if isTruncateFree(Ty2, Ty1) is true, this
+ /// does not necessarily apply to truncate instructions. e.g. on x86-64,
+ /// all instructions that define 32-bit values implicit zero-extend the
+ /// result out to 64 bits.
+ virtual bool isZExtFree(const Type *Ty1, const Type *Ty2) const;
+ virtual bool isZExtFree(EVT VT1, EVT VT2) const;
+
+ /// isNarrowingProfitable - Return true if it's profitable to narrow
+ /// operations of type VT1 to VT2. e.g. on x86, it's profitable to narrow
+ /// from i32 to i8 but not from i32 to i16.
+ virtual bool isNarrowingProfitable(EVT VT1, EVT VT2) const;
+
+ /// isFPImmLegal - Returns true if the target can instruction select the
+ /// specified FP immediate natively. If false, the legalizer will
+ /// materialize the FP immediate as a load from a constant pool.
+ virtual bool isFPImmLegal(const APFloat &Imm, EVT VT) const;
+
/// isShuffleMaskLegal - Targets can use this to indicate that they only
/// support *some* VECTOR_SHUFFLE operations, those with specific masks.
/// By default, if a target supports the VECTOR_SHUFFLE node, all mask
/// values are assumed to be legal.
- virtual bool isShuffleMaskLegal(SDValue Mask, MVT VT) const;
+ virtual bool isShuffleMaskLegal(const SmallVectorImpl<int> &Mask,
+ EVT VT) const;
/// isVectorClearMaskLegal - Similar to isShuffleMaskLegal. This is
/// used by Targets can use this to indicate if there is a suitable
/// VECTOR_SHUFFLE that can be used to replace a VAND with a constant
/// pool entry.
- virtual bool isVectorClearMaskLegal(const std::vector<SDValue> &BVOps,
- MVT EVT, SelectionDAG &DAG) const;
+ virtual bool isVectorClearMaskLegal(const SmallVectorImpl<int> &Mask,
+ EVT VT) const;
/// ShouldShrinkFPConstant - If true, then instruction selection should
/// seek to shrink the FP constant of the specified type to a smaller type
/// in order to save space and / or reduce runtime.
- virtual bool ShouldShrinkFPConstant(MVT VT) const {
+ virtual bool ShouldShrinkFPConstant(EVT VT) const {
// Don't shrink FP constpool if SSE2 is available since cvtss2sd is more
// expensive than a straight movsd. On the other hand, it's important to
// shrink long double fp constant since fldt is very slow.
return !X86ScalarSSEf64 || VT == MVT::f80;
}
-
- /// IsEligibleForTailCallOptimization - Check whether the call is eligible
- /// for tail call optimization. Target which want to do tail call
- /// optimization should implement this function.
- virtual bool IsEligibleForTailCallOptimization(CallSDNode *TheCall,
- SDValue Ret,
- SelectionDAG &DAG) const;
- virtual const X86Subtarget* getSubtarget() {
+ const X86Subtarget* getSubtarget() const {
return Subtarget;
}
/// isScalarFPTypeInSSEReg - Return true if the specified scalar FP type is
/// computed in an SSE register, not on the X87 floating point stack.
- bool isScalarFPTypeInSSEReg(MVT VT) const {
+ bool isScalarFPTypeInSSEReg(EVT VT) const {
return (VT == MVT::f64 && X86ScalarSSEf64) || // f64 is when SSE2
(VT == MVT::f32 && X86ScalarSSEf32); // f32 is when SSE1
}
- /// getWidenVectorType: given a vector type, returns the type to widen
- /// to (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
- /// If there is no vector type that we want to widen to, returns MVT::Other
- /// When and were to widen is target dependent based on the cost of
- /// scalarizing vs using the wider vector type.
- virtual MVT getWidenVectorType(MVT VT);
-
/// createFastISel - This method returns a target specific FastISel object,
/// or null if the target does not support "fast" ISel.
- virtual FastISel *
- createFastISel(MachineFunction &mf,
- MachineModuleInfo *mmi,
- DenseMap<const Value *, unsigned> &,
- DenseMap<const BasicBlock *, MachineBasicBlock *> &,
- DenseMap<const AllocaInst *, int> &
-#ifndef NDEBUG
- , SmallSet<Instruction*, 8> &
-#endif
- );
-
+ virtual FastISel *createFastISel(FunctionLoweringInfo &funcInfo) const;
+
+ /// getFunctionAlignment - Return the Log2 alignment of this function.
+ virtual unsigned getFunctionAlignment(const Function *F) const;
+
+ unsigned getRegPressureLimit(const TargetRegisterClass *RC,
+ MachineFunction &MF) const;
+
+ /// getStackCookieLocation - Return true if the target stores stack
+ /// protector cookies at a fixed offset in some non-standard address
+ /// space, and populates the address space and offset as
+ /// appropriate.
+ virtual bool getStackCookieLocation(unsigned &AddressSpace, unsigned &Offset) const;
+
+ protected:
+ std::pair<const TargetRegisterClass*, uint8_t>
+ findRepresentativeClass(EVT VT) const;
+
private:
/// Subtarget - Keep a pointer to the X86Subtarget around so that we can
/// make the right decision when generating code for different targets.
/// 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.
bool X86ScalarSSEf32;
bool X86ScalarSSEf64;
- SDNode *LowerCallResult(SDValue Chain, SDValue InFlag, CallSDNode *TheCall,
- unsigned CallingConv, SelectionDAG &DAG);
+ /// LegalFPImmediates - A list of legal fp immediates.
+ std::vector<APFloat> LegalFPImmediates;
- SDValue LowerMemArgument(SDValue Op, SelectionDAG &DAG,
- const CCValAssign &VA, MachineFrameInfo *MFI,
- unsigned CC, SDValue Root, unsigned i);
+ /// addLegalFPImmediate - Indicate that this x86 target can instruction
+ /// select the specified FP immediate natively.
+ void addLegalFPImmediate(const APFloat& Imm) {
+ LegalFPImmediates.push_back(Imm);
+ }
- SDValue LowerMemOpCallTo(CallSDNode *TheCall, SelectionDAG &DAG,
- const SDValue &StackPtr,
- const CCValAssign &VA, SDValue Chain,
- SDValue Arg, ISD::ArgFlagsTy Flags);
+ SDValue LowerCallResult(SDValue Chain, SDValue InFlag,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const;
+ SDValue LowerMemArgument(SDValue Chain,
+ CallingConv::ID CallConv,
+ const SmallVectorImpl<ISD::InputArg> &ArgInfo,
+ DebugLoc dl, SelectionDAG &DAG,
+ const CCValAssign &VA, MachineFrameInfo *MFI,
+ unsigned i) const;
+ SDValue LowerMemOpCallTo(SDValue Chain, SDValue StackPtr, SDValue Arg,
+ DebugLoc dl, SelectionDAG &DAG,
+ const CCValAssign &VA,
+ ISD::ArgFlagsTy Flags) const;
// Call lowering helpers.
- bool IsCalleePop(bool isVarArg, unsigned CallingConv);
- bool CallRequiresGOTPtrInReg(bool Is64Bit, bool IsTailCall);
- bool CallRequiresFnAddressInReg(bool Is64Bit, bool IsTailCall);
+
+ /// IsEligibleForTailCallOptimization - Check whether the call is eligible
+ /// for tail call optimization. Targets which want to do tail call
+ /// optimization should implement this function.
+ bool IsEligibleForTailCallOptimization(SDValue Callee,
+ CallingConv::ID CalleeCC,
+ bool isVarArg,
+ bool isCalleeStructRet,
+ bool isCallerStructRet,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<SDValue> &OutVals,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ SelectionDAG& DAG) const;
+ bool IsCalleePop(bool isVarArg, CallingConv::ID CallConv) const;
SDValue EmitTailCallLoadRetAddr(SelectionDAG &DAG, SDValue &OutRetAddr,
SDValue Chain, bool IsTailCall, bool Is64Bit,
- int FPDiff);
-
- CCAssignFn *CCAssignFnForNode(unsigned CallingConv) const;
- NameDecorationStyle NameDecorationForFORMAL_ARGUMENTS(SDValue Op);
- unsigned GetAlignedArgumentStackSize(unsigned StackSize, SelectionDAG &DAG);
-
- std::pair<SDValue,SDValue> FP_TO_SINTHelper(SDValue Op,
- SelectionDAG &DAG);
-
- SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG);
- SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG);
- SDValue LowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG);
- SDValue LowerEXTRACT_VECTOR_ELT_SSE4(SDValue Op, SelectionDAG &DAG);
- SDValue LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG);
- SDValue LowerINSERT_VECTOR_ELT_SSE4(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG);
- SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG);
- SDValue LowerGlobalAddress(const GlobalValue *GV, int64_t Offset,
- SelectionDAG &DAG) const;
- SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
- SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG);
- SDValue LowerExternalSymbol(SDValue Op, SelectionDAG &DAG);
- SDValue LowerShift(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG);
- SDValue LowerUINT_TO_FP(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFABS(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFNEG(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG);
- SDValue LowerVSETCC(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG);
- SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG);
- SDValue LowerMEMSET(SDValue Op, SelectionDAG &DAG);
- SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG);
- SDValue LowerCALL(SDValue Op, SelectionDAG &DAG);
- SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
- SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
- SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG);
- SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG);
- SDValue LowerVACOPY(SDValue Op, SelectionDAG &DAG);
- SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG);
- SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFRAME_TO_ARGS_OFFSET(SDValue Op, SelectionDAG &DAG);
- SDValue LowerEH_RETURN(SDValue Op, SelectionDAG &DAG);
- SDValue LowerTRAMPOLINE(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFLT_ROUNDS_(SDValue Op, SelectionDAG &DAG);
- SDValue LowerCTLZ(SDValue Op, SelectionDAG &DAG);
- SDValue LowerCTTZ(SDValue Op, SelectionDAG &DAG);
- SDValue LowerMUL_V2I64(SDValue Op, SelectionDAG &DAG);
- SDValue LowerXALUO(SDValue Op, SelectionDAG &DAG);
-
- SDValue LowerCMP_SWAP(SDValue Op, SelectionDAG &DAG);
- SDValue LowerLOAD_SUB(SDValue Op, SelectionDAG &DAG);
- SDValue LowerREADCYCLECOUNTER(SDValue Op, SelectionDAG &DAG);
+ int FPDiff, DebugLoc dl) const;
+
+ unsigned GetAlignedArgumentStackSize(unsigned StackSize,
+ SelectionDAG &DAG) const;
+
+ std::pair<SDValue,SDValue> FP_TO_INTHelper(SDValue Op, SelectionDAG &DAG,
+ bool isSigned) const;
+
+ SDValue LowerAsSplatVectorLoad(SDValue SrcOp, EVT VT, DebugLoc dl,
+ SelectionDAG &DAG) const;
+ SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerCONCAT_VECTORS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerEXTRACT_VECTOR_ELT_SSE4(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerINSERT_VECTOR_ELT_SSE4(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerGlobalAddress(const GlobalValue *GV, DebugLoc dl,
+ int64_t Offset, SelectionDAG &DAG) const;
+ SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerExternalSymbol(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerShift(SDValue Op, SelectionDAG &DAG) const;
+ SDValue BuildFILD(SDValue Op, EVT SrcVT, SDValue Chain, SDValue StackSlot,
+ 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;
+ SDValue LowerUINT_TO_FP_i32(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFP_TO_UINT(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFABS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFNEG(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerToBT(SDValue And, ISD::CondCode CC,
+ DebugLoc dl, SelectionDAG &DAG) const;
+ SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVSETCC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerMEMSET(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVACOPY(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFRAME_TO_ARGS_OFFSET(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerEH_RETURN(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerTRAMPOLINE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFLT_ROUNDS_(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerCTLZ(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerCTTZ(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerMUL_V2I64(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSHL(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerXALUO(SDValue Op, SelectionDAG &DAG) const;
+
+ SDValue LowerCMP_SWAP(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerLOAD_SUB(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerREADCYCLECOUNTER(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerMEMBARRIER(SDValue Op, SelectionDAG &DAG) const;
+
+ // Utility functions to help LowerVECTOR_SHUFFLE
+ SDValue LowerVECTOR_SHUFFLEv8i16(SDValue Op, SelectionDAG &DAG) const;
+
+ virtual SDValue
+ LowerFormalArguments(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const;
+ virtual SDValue
+ LowerCall(SDValue Chain, SDValue Callee,
+ CallingConv::ID CallConv, bool isVarArg, bool &isTailCall,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<SDValue> &OutVals,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const;
+
+ virtual SDValue
+ LowerReturn(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ 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,
+ LLVMContext &Context) const;
void ReplaceATOMIC_BINARY_64(SDNode *N, SmallVectorImpl<SDValue> &Results,
- SelectionDAG &DAG, unsigned NewOp);
-
- SDValue EmitTargetCodeForMemset(SelectionDAG &DAG,
- SDValue Chain,
- SDValue Dst, SDValue Src,
- SDValue Size, unsigned Align,
- const Value *DstSV, uint64_t DstSVOff);
- SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG,
- SDValue Chain,
- SDValue Dst, SDValue Src,
- SDValue Size, unsigned Align,
- bool AlwaysInline,
- const Value *DstSV, uint64_t DstSVOff,
- const Value *SrcSV, uint64_t SrcSVOff);
-
+ SelectionDAG &DAG, unsigned NewOp) const;
+
+ /// Utility function to emit string processing sse4.2 instructions
+ /// that return in xmm0.
+ /// This takes the instruction to expand, the associated machine basic
+ /// block, the number of args, and whether or not the second arg is
+ /// in memory or not.
+ 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.
+ /// It takes the bitwise instruction to expand, the associated machine basic
+ /// block, and the associated X86 opcodes for reg/reg and reg/imm.
MachineBasicBlock *EmitAtomicBitwiseWithCustomInserter(
MachineInstr *BInstr,
MachineBasicBlock *BB,
unsigned immOpc,
unsigned loadOpc,
unsigned cxchgOpc,
- unsigned copyOpc,
unsigned notOpc,
unsigned EAXreg,
TargetRegisterClass *RC,
- bool invSrc = false);
+ bool invSrc = false) const;
MachineBasicBlock *EmitAtomicBit6432WithCustomInserter(
MachineInstr *BInstr,
unsigned regOpcH,
unsigned immOpcL,
unsigned immOpcH,
- bool invSrc = false);
-
+ 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.
+ /// instruction to expand, the associated basic block, and the associated
+ /// cmov opcode for moving the min or max value.
MachineBasicBlock *EmitAtomicMinMaxWithCustomInserter(MachineInstr *BInstr,
MachineBasicBlock *BB,
- unsigned cmovOpc);
+ 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 *BB) const;
+
+ MachineBasicBlock *EmitLoweredSelect(MachineInstr *I,
+ MachineBasicBlock *BB) const;
+
+ 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;
+
+ /// Emit nodes that will be selected as "cmp Op0,Op1", or something
+ /// equivalent, for use with the given x86 condition code.
+ SDValue EmitCmp(SDValue Op0, SDValue Op1, unsigned X86CC,
+ SelectionDAG &DAG) const;
};
namespace X86 {
- FastISel *createFastISel(MachineFunction &mf,
- MachineModuleInfo *mmi,
- DenseMap<const Value *, unsigned> &,
- DenseMap<const BasicBlock *, MachineBasicBlock *> &,
- DenseMap<const AllocaInst *, int> &
-#ifndef NDEBUG
- , SmallSet<Instruction*, 8> &
-#endif
- );
+ FastISel *createFastISel(FunctionLoweringInfo &funcInfo);
}
}