-//===- ARMInstrFormats.td - ARM Instruction Formats ----------*- tablegen -*-=//
+//===-- ARMInstrFormats.td - ARM Instruction Formats -------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
def BrMiscFrm : Format<3>;
def DPFrm : Format<4>;
-def DPSoRegFrm : Format<5>;
+def DPSoRegRegFrm : Format<5>;
def LdFrm : Format<6>;
def StFrm : Format<7>;
def NVExtFrm : Format<39>;
def NVMulSLFrm : Format<40>;
def NVTBLFrm : Format<41>;
+def DPSoRegImmFrm : Format<42>;
// Misc flags.
def AddrModeT2_i8s4 : AddrMode<15>;
def AddrMode_i12 : AddrMode<16>;
-// Instruction size.
-class SizeFlagVal<bits<3> val> {
- bits<3> Value = val;
-}
-def SizeInvalid : SizeFlagVal<0>; // Unset.
-def SizeSpecial : SizeFlagVal<1>; // Pseudo or special.
-def Size8Bytes : SizeFlagVal<2>;
-def Size4Bytes : SizeFlagVal<3>;
-def Size2Bytes : SizeFlagVal<4>;
-
// Load / store index mode.
class IndexMode<bits<2> val> {
bits<2> Value = val;
// ARM special operands.
//
-def CondCodeOperand : AsmOperandClass {
- let Name = "CondCode";
- let SuperClasses = [];
-}
-
-def CCOutOperand : AsmOperandClass {
- let Name = "CCOut";
- let SuperClasses = [];
-}
-
-def MemBarrierOptOperand : AsmOperandClass {
- let Name = "MemBarrierOpt";
- let SuperClasses = [];
- let ParserMethod = "tryParseMemBarrierOptOperand";
-}
-
-def ProcIFlagsOperand : AsmOperandClass {
- let Name = "ProcIFlags";
- let SuperClasses = [];
- let ParserMethod = "tryParseProcIFlagsOperand";
-}
-
-def MSRMaskOperand : AsmOperandClass {
- let Name = "MSRMask";
- let SuperClasses = [];
- let ParserMethod = "tryParseMSRMaskOperand";
-}
-
// ARM imod and iflag operands, used only by the CPS instruction.
def imod_op : Operand<i32> {
let PrintMethod = "printCPSIMod";
}
+def ProcIFlagsOperand : AsmOperandClass {
+ let Name = "ProcIFlags";
+ let ParserMethod = "parseProcIFlagsOperand";
+}
def iflags_op : Operand<i32> {
let PrintMethod = "printCPSIFlag";
let ParserMatchClass = ProcIFlagsOperand;
// ARM Predicate operand. Default to 14 = always (AL). Second part is CC
// register whose default is 0 (no register).
-def pred : PredicateOperand<OtherVT, (ops i32imm, CCR),
+def CondCodeOperand : AsmOperandClass { let Name = "CondCode"; }
+def pred : PredicateOperand<OtherVT, (ops i32imm, i32imm),
(ops (i32 14), (i32 zero_reg))> {
let PrintMethod = "printPredicateOperand";
let ParserMatchClass = CondCodeOperand;
+ let DecoderMethod = "DecodePredicateOperand";
+}
+
+// Selectable predicate operand for CMOV instructions. We can't use a normal
+// predicate because the default values interfere with instruction selection. In
+// all other respects it is identical though: pseudo-instruction expansion
+// relies on the MachineOperands being compatible.
+def cmovpred : Operand<i32>, PredicateOp,
+ ComplexPattern<i32, 2, "SelectCMOVPred"> {
+ let MIOperandInfo = (ops i32imm, i32imm);
+ let PrintMethod = "printPredicateOperand";
}
// Conditional code result for instructions whose 's' bit is set, e.g. subs.
+def CCOutOperand : AsmOperandClass { let Name = "CCOut"; }
def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
let EncoderMethod = "getCCOutOpValue";
let PrintMethod = "printSBitModifierOperand";
let ParserMatchClass = CCOutOperand;
+ let DecoderMethod = "DecodeCCOutOperand";
}
// Same as cc_out except it defaults to setting CPSR.
let EncoderMethod = "getCCOutOpValue";
let PrintMethod = "printSBitModifierOperand";
let ParserMatchClass = CCOutOperand;
+ let DecoderMethod = "DecodeCCOutOperand";
}
// ARM special operands for disassembly only.
//
+def SetEndAsmOperand : ImmAsmOperand {
+ let Name = "SetEndImm";
+ let ParserMethod = "parseSetEndImm";
+}
def setend_op : Operand<i32> {
let PrintMethod = "printSetendOperand";
+ let ParserMatchClass = SetEndAsmOperand;
}
+def MSRMaskOperand : AsmOperandClass {
+ let Name = "MSRMask";
+ let ParserMethod = "parseMSRMaskOperand";
+}
def msr_mask : Operand<i32> {
let PrintMethod = "printMSRMaskOperand";
+ let DecoderMethod = "DecodeMSRMask";
let ParserMatchClass = MSRMaskOperand;
}
// 16 imm6<5:4> = '01', 16 - <imm> is encoded in imm6<3:0>
// 32 imm6<5> = '1', 32 - <imm> is encoded in imm6<4:0>
// 64 64 - <imm> is encoded in imm6<5:0>
-def shr_imm8 : Operand<i32> {
+def shr_imm8_asm_operand : ImmAsmOperand { let Name = "ShrImm8"; }
+def shr_imm8 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm <= 8; }]> {
let EncoderMethod = "getShiftRight8Imm";
+ let DecoderMethod = "DecodeShiftRight8Imm";
+ let ParserMatchClass = shr_imm8_asm_operand;
}
-def shr_imm16 : Operand<i32> {
+def shr_imm16_asm_operand : ImmAsmOperand { let Name = "ShrImm16"; }
+def shr_imm16 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm <= 16; }]> {
let EncoderMethod = "getShiftRight16Imm";
+ let DecoderMethod = "DecodeShiftRight16Imm";
+ let ParserMatchClass = shr_imm16_asm_operand;
}
-def shr_imm32 : Operand<i32> {
+def shr_imm32_asm_operand : ImmAsmOperand { let Name = "ShrImm32"; }
+def shr_imm32 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm <= 32; }]> {
let EncoderMethod = "getShiftRight32Imm";
+ let DecoderMethod = "DecodeShiftRight32Imm";
+ let ParserMatchClass = shr_imm32_asm_operand;
}
-def shr_imm64 : Operand<i32> {
+def shr_imm64_asm_operand : ImmAsmOperand { let Name = "ShrImm64"; }
+def shr_imm64 : Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm <= 64; }]> {
let EncoderMethod = "getShiftRight64Imm";
+ let DecoderMethod = "DecodeShiftRight64Imm";
+ let ParserMatchClass = shr_imm64_asm_operand;
}
+//===----------------------------------------------------------------------===//
+// ARM Assembler alias templates.
+//
+class ARMInstAlias<string Asm, dag Result, bit Emit = 0b1>
+ : InstAlias<Asm, Result, Emit>, Requires<[IsARM]>;
+class tInstAlias<string Asm, dag Result, bit Emit = 0b1>
+ : InstAlias<Asm, Result, Emit>, Requires<[IsThumb]>;
+class t2InstAlias<string Asm, dag Result, bit Emit = 0b1>
+ : InstAlias<Asm, Result, Emit>, Requires<[IsThumb2]>;
+class VFP2InstAlias<string Asm, dag Result, bit Emit = 0b1>
+ : InstAlias<Asm, Result, Emit>, Requires<[HasVFP2]>;
+class VFP2DPInstAlias<string Asm, dag Result, bit Emit = 0b1>
+ : InstAlias<Asm, Result, Emit>, Requires<[HasVFP2,HasDPVFP]>;
+class VFP3InstAlias<string Asm, dag Result, bit Emit = 0b1>
+ : InstAlias<Asm, Result, Emit>, Requires<[HasVFP3]>;
+class NEONInstAlias<string Asm, dag Result, bit Emit = 0b1>
+ : InstAlias<Asm, Result, Emit>, Requires<[HasNEON]>;
+
+
+class VFP2MnemonicAlias<string src, string dst> : MnemonicAlias<src, dst>,
+ Requires<[HasVFP2]>;
+class NEONMnemonicAlias<string src, string dst> : MnemonicAlias<src, dst>,
+ Requires<[HasNEON]>;
+
//===----------------------------------------------------------------------===//
// ARM Instruction templates.
//
-class InstTemplate<AddrMode am, SizeFlagVal sz, IndexMode im,
+
+class InstTemplate<AddrMode am, int sz, IndexMode im,
Format f, Domain d, string cstr, InstrItinClass itin>
: Instruction {
let Namespace = "ARM";
AddrMode AM = am;
- SizeFlagVal SZ = sz;
+ int Size = sz;
IndexMode IM = im;
bits<2> IndexModeBits = IM.Value;
Format F = f;
Domain D = d;
bit isUnaryDataProc = 0;
bit canXformTo16Bit = 0;
+ // The instruction is a 16-bit flag setting Thumb instruction. Used
+ // by the parser to determine whether to require the 'S' suffix on the
+ // mnemonic (when not in an IT block) or preclude it (when in an IT block).
+ bit thumbArithFlagSetting = 0;
// If this is a pseudo instruction, mark it isCodeGenOnly.
let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
- // The layout of TSFlags should be kept in sync with ARMBaseInstrInfo.h.
+ // The layout of TSFlags should be kept in sync with ARMBaseInfo.h.
let TSFlags{4-0} = AM.Value;
- let TSFlags{7-5} = SZ.Value;
- let TSFlags{9-8} = IndexModeBits;
- let TSFlags{15-10} = Form;
- let TSFlags{16} = isUnaryDataProc;
- let TSFlags{17} = canXformTo16Bit;
- let TSFlags{20-18} = D.Value;
+ let TSFlags{6-5} = IndexModeBits;
+ let TSFlags{12-7} = Form;
+ let TSFlags{13} = isUnaryDataProc;
+ let TSFlags{14} = canXformTo16Bit;
+ let TSFlags{17-15} = D.Value;
+ let TSFlags{18} = thumbArithFlagSetting;
let Constraints = cstr;
let Itinerary = itin;
class Encoding {
field bits<32> Inst;
+ // Mask of bits that cause an encoding to be UNPREDICTABLE.
+ // If a bit is set, then if the corresponding bit in the
+ // target encoding differs from its value in the "Inst" field,
+ // the instruction is UNPREDICTABLE (SoftFail in abstract parlance).
+ field bits<32> Unpredictable = 0;
+ // SoftFail is the generic name for this field, but we alias it so
+ // as to make it more obvious what it means in ARM-land.
+ field bits<32> SoftFail = Unpredictable;
}
-class InstARM<AddrMode am, SizeFlagVal sz, IndexMode im,
+class InstARM<AddrMode am, int sz, IndexMode im,
Format f, Domain d, string cstr, InstrItinClass itin>
- : InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding;
+ : InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding {
+ let DecoderNamespace = "ARM";
+}
// This Encoding-less class is used by Thumb1 to specify the encoding bits later
// on by adding flavors to specific instructions.
-class InstThumb<AddrMode am, SizeFlagVal sz, IndexMode im,
+class InstThumb<AddrMode am, int sz, IndexMode im,
Format f, Domain d, string cstr, InstrItinClass itin>
- : InstTemplate<am, sz, im, f, d, cstr, itin>;
+ : InstTemplate<am, sz, im, f, d, cstr, itin> {
+ let DecoderNamespace = "Thumb";
+}
+// Pseudo-instructions for alternate assembly syntax (never used by codegen).
+// These are aliases that require C++ handling to convert to the target
+// instruction, while InstAliases can be handled directly by tblgen.
+class AsmPseudoInst<string asm, dag iops, dag oops = (outs)>
+ : InstTemplate<AddrModeNone, 0, IndexModeNone, Pseudo, GenericDomain,
+ "", NoItinerary> {
+ let OutOperandList = oops;
+ let InOperandList = iops;
+ let Pattern = [];
+ let isCodeGenOnly = 0; // So we get asm matcher for it.
+ let AsmString = asm;
+ let isPseudo = 1;
+}
+
+class ARMAsmPseudo<string asm, dag iops, dag oops = (outs)>
+ : AsmPseudoInst<asm, iops, oops>, Requires<[IsARM]>;
+class tAsmPseudo<string asm, dag iops, dag oops = (outs)>
+ : AsmPseudoInst<asm, iops, oops>, Requires<[IsThumb]>;
+class t2AsmPseudo<string asm, dag iops, dag oops = (outs)>
+ : AsmPseudoInst<asm, iops, oops>, Requires<[IsThumb2]>;
+class VFP2AsmPseudo<string asm, dag iops, dag oops = (outs)>
+ : AsmPseudoInst<asm, iops, oops>, Requires<[HasVFP2]>;
+class NEONAsmPseudo<string asm, dag iops, dag oops = (outs)>
+ : AsmPseudoInst<asm, iops, oops>, Requires<[HasNEON]>;
+
+// Pseudo instructions for the code generator.
class PseudoInst<dag oops, dag iops, InstrItinClass itin, list<dag> pattern>
- // FIXME: This really should derive from InstTemplate instead, as pseudos
- // don't need encoding information. TableGen doesn't like that
- // currently. Need to figure out why and fix it.
- : InstARM<AddrModeNone, SizeSpecial, IndexModeNone, Pseudo, GenericDomain,
- "", itin> {
+ : InstTemplate<AddrModeNone, 0, IndexModeNone, Pseudo,
+ GenericDomain, "", itin> {
let OutOperandList = oops;
let InOperandList = iops;
let Pattern = pattern;
let isCodeGenOnly = 1;
+ let isPseudo = 1;
}
// PseudoInst that's ARM-mode only.
-class ARMPseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
+class ARMPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
list<dag> pattern>
: PseudoInst<oops, iops, itin, pattern> {
- let SZ = sz;
+ let Size = sz;
list<Predicate> Predicates = [IsARM];
}
// PseudoInst that's Thumb-mode only.
-class tPseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
+class tPseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
list<dag> pattern>
: PseudoInst<oops, iops, itin, pattern> {
- let SZ = sz;
+ let Size = sz;
list<Predicate> Predicates = [IsThumb];
}
// PseudoInst that's Thumb2-mode only.
-class t2PseudoInst<dag oops, dag iops, SizeFlagVal sz, InstrItinClass itin,
+class t2PseudoInst<dag oops, dag iops, int sz, InstrItinClass itin,
list<dag> pattern>
: PseudoInst<oops, iops, itin, pattern> {
- let SZ = sz;
+ let Size = sz;
list<Predicate> Predicates = [IsThumb2];
}
+
+class ARMPseudoExpand<dag oops, dag iops, int sz,
+ InstrItinClass itin, list<dag> pattern,
+ dag Result>
+ : ARMPseudoInst<oops, iops, sz, itin, pattern>,
+ PseudoInstExpansion<Result>;
+
+class tPseudoExpand<dag oops, dag iops, int sz,
+ InstrItinClass itin, list<dag> pattern,
+ dag Result>
+ : tPseudoInst<oops, iops, sz, itin, pattern>,
+ PseudoInstExpansion<Result>;
+
+class t2PseudoExpand<dag oops, dag iops, int sz,
+ InstrItinClass itin, list<dag> pattern,
+ dag Result>
+ : t2PseudoInst<oops, iops, sz, itin, pattern>,
+ PseudoInstExpansion<Result>;
+
// Almost all ARM instructions are predicable.
-class I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class I<dag oops, dag iops, AddrMode am, int sz,
IndexMode im, Format f, InstrItinClass itin,
string opc, string asm, string cstr,
list<dag> pattern>
}
// A few are not predicable
-class InoP<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class InoP<dag oops, dag iops, AddrMode am, int sz,
IndexMode im, Format f, InstrItinClass itin,
string opc, string asm, string cstr,
list<dag> pattern>
// Same as I except it can optionally modify CPSR. Note it's modeled as an input
// operand since by default it's a zero register. It will become an implicit def
// once it's "flipped".
-class sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class sI<dag oops, dag iops, AddrMode am, int sz,
IndexMode im, Format f, InstrItinClass itin,
string opc, string asm, string cstr,
list<dag> pattern>
}
// Special cases
-class XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class XI<dag oops, dag iops, AddrMode am, int sz,
IndexMode im, Format f, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
class AI<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
opc, asm, "", pattern>;
class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
+ : sI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
opc, asm, "", pattern>;
class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
- : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
+ : XI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
+ asm, "", pattern>;
+class AXIM<dag oops, dag iops, AddrMode am, Format f, InstrItinClass itin,
+ string asm, list<dag> pattern>
+ : XI<oops, iops, am, 4, IndexModeNone, f, itin,
asm, "", pattern>;
class AInoP<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : InoP<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
+ : InoP<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
opc, asm, "", pattern>;
// Ctrl flow instructions
class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
opc, asm, "", pattern> {
let Inst{27-24} = opcod;
}
class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
- : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
+ : XI<oops, iops, AddrModeNone, 4, IndexModeNone, BrFrm, itin,
asm, "", pattern> {
let Inst{27-24} = opcod;
}
// BR_JT instructions
class JTI<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
- : XI<oops, iops, AddrModeNone, SizeSpecial, IndexModeNone, BrMiscFrm, itin,
+ : XI<oops, iops, AddrModeNone, 0, IndexModeNone, BrMiscFrm, itin,
asm, "", pattern>;
-// Atomic load/store instructions
-class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
+class AIldr_ex_or_acq<bits<2> opcod, bits<2> opcod2, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
opc, asm, "", pattern> {
bits<4> Rt;
- bits<4> Rn;
+ bits<4> addr;
let Inst{27-23} = 0b00011;
let Inst{22-21} = opcod;
let Inst{20} = 1;
- let Inst{19-16} = Rn;
+ let Inst{19-16} = addr;
let Inst{15-12} = Rt;
- let Inst{11-0} = 0b111110011111;
+ let Inst{11-10} = 0b11;
+ let Inst{9-8} = opcod2;
+ let Inst{7-0} = 0b10011111;
}
-class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
+class AIstr_ex_or_rel<bits<2> opcod, bits<2> opcod2, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, LdStExFrm, itin,
opc, asm, "", pattern> {
- bits<4> Rd;
bits<4> Rt;
bits<4> addr;
let Inst{27-23} = 0b00011;
let Inst{22-21} = opcod;
let Inst{20} = 0;
let Inst{19-16} = addr;
- let Inst{15-12} = Rd;
- let Inst{11-4} = 0b11111001;
+ let Inst{11-10} = 0b11;
+ let Inst{9-8} = opcod2;
+ let Inst{7-4} = 0b1001;
let Inst{3-0} = Rt;
}
+// Atomic load/store instructions
+class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : AIldr_ex_or_acq<opcod, 0b11, oops, iops, itin, opc, asm, pattern>;
+
+class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : AIstr_ex_or_rel<opcod, 0b11, oops, iops, itin, opc, asm, pattern> {
+ bits<4> Rd;
+ let Inst{15-12} = Rd;
+}
+
+// Exclusive load/store instructions
+
+class AIldaex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : AIldr_ex_or_acq<opcod, 0b10, oops, iops, itin, opc, asm, pattern>,
+ Requires<[IsARM, HasV8]>;
+
+class AIstlex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : AIstr_ex_or_rel<opcod, 0b10, oops, iops, itin, opc, asm, pattern>,
+ Requires<[IsARM, HasV8]> {
+ bits<4> Rd;
+ let Inst{15-12} = Rd;
+}
+
class AIswp<bit b, dag oops, dag iops, string opc, list<dag> pattern>
- : AI<oops, iops, MiscFrm, NoItinerary, opc, "\t$Rt, $Rt2, [$Rn]", pattern> {
+ : AI<oops, iops, MiscFrm, NoItinerary, opc, "\t$Rt, $Rt2, $addr", pattern> {
bits<4> Rt;
bits<4> Rt2;
- bits<4> Rn;
+ bits<4> addr;
let Inst{27-23} = 0b00010;
let Inst{22} = b;
let Inst{21-20} = 0b00;
- let Inst{19-16} = Rn;
+ let Inst{19-16} = addr;
let Inst{15-12} = Rt;
let Inst{11-4} = 0b00001001;
let Inst{3-0} = Rt2;
+
+ let Unpredictable{11-8} = 0b1111;
+ let DecoderMethod = "DecodeSwap";
+}
+// Acquire/Release load/store instructions
+class AIldracq<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : AIldr_ex_or_acq<opcod, 0b00, oops, iops, itin, opc, asm, pattern>,
+ Requires<[IsARM, HasV8]>;
+
+class AIstrrel<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : AIstr_ex_or_rel<opcod, 0b00, oops, iops, itin, opc, asm, pattern>,
+ Requires<[IsARM, HasV8]> {
+ let Inst{15-12} = 0b1111;
}
// addrmode1 instructions
class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
+ : I<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{24-21} = opcod;
let Inst{27-26} = 0b00;
}
class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : sI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
+ : sI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{24-21} = opcod;
let Inst{27-26} = 0b00;
}
class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
- : XI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
+ : XI<oops, iops, AddrMode1, 4, IndexModeNone, f, itin,
asm, "", pattern> {
let Inst{24-21} = opcod;
let Inst{27-26} = 0b00;
class AI2ldst<bits<3> op, bit isLd, bit isByte, dag oops, dag iops, AddrMode am,
Format f, InstrItinClass itin, string opc, string asm,
list<dag> pattern>
- : I<oops, iops, am, Size4Bytes, IndexModeNone, f, itin, opc, asm,
+ : I<oops, iops, am, 4, IndexModeNone, f, itin, opc, asm,
"", pattern> {
let Inst{27-25} = op;
let Inst{24} = 1; // 24 == P
class AI2ldstidx<bit isLd, bit isByte, bit isPre, dag oops, dag iops,
IndexMode im, Format f, InstrItinClass itin, string opc,
string asm, string cstr, list<dag> pattern>
- : I<oops, iops, AddrMode2, Size4Bytes, im, f, itin,
+ : I<oops, iops, AddrMode2, 4, im, f, itin,
opc, asm, cstr, pattern> {
bits<4> Rt;
let Inst{27-26} = 0b01;
let Inst{20} = isLd; // L bit
let Inst{15-12} = Rt;
}
-class AI2stridx<bit isByte, bit isPre, dag oops, dag iops,
+class AI2stridx_reg<bit isByte, bit isPre, dag oops, dag iops,
+ IndexMode im, Format f, InstrItinClass itin, string opc,
+ string asm, string cstr, list<dag> pattern>
+ : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
+ pattern> {
+ // AM2 store w/ two operands: (GPR, am2offset)
+ // {12} isAdd
+ // {11-0} imm12/Rm
+ bits<14> offset;
+ bits<4> Rn;
+ let Inst{25} = 1;
+ let Inst{23} = offset{12};
+ let Inst{19-16} = Rn;
+ let Inst{11-5} = offset{11-5};
+ let Inst{4} = 0;
+ let Inst{3-0} = offset{3-0};
+}
+
+class AI2stridx_imm<bit isByte, bit isPre, dag oops, dag iops,
IndexMode im, Format f, InstrItinClass itin, string opc,
string asm, string cstr, list<dag> pattern>
: AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
pattern> {
// AM2 store w/ two operands: (GPR, am2offset)
- // {13} 1 == Rm, 0 == imm12
// {12} isAdd
// {11-0} imm12/Rm
bits<14> offset;
bits<4> Rn;
- let Inst{25} = offset{13};
+ let Inst{25} = 0;
let Inst{23} = offset{12};
let Inst{19-16} = Rn;
let Inst{11-0} = offset{11-0};
}
+
+
// FIXME: Merge with the above class when addrmode2 gets used for STR, STRB
// but for now use this class for STRT and STRBT.
class AI2stridxT<bit isByte, bit isPre, dag oops, dag iops,
// addrmode3 instructions
class AI3ld<bits<4> op, bit op20, dag oops, dag iops, Format f,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+ : I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
opc, asm, "", pattern> {
bits<14> addr;
bits<4> Rt;
let Inst{11-8} = addr{7-4}; // imm7_4/zero
let Inst{7-4} = op;
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
+
+ let DecoderMethod = "DecodeAddrMode3Instruction";
}
-class AI3ldstidx<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
+class AI3ldstidx<bits<4> op, bit op20, bit isPre, dag oops, dag iops,
IndexMode im, Format f, InstrItinClass itin, string opc,
string asm, string cstr, list<dag> pattern>
- : I<oops, iops, AddrMode3, Size4Bytes, im, f, itin,
+ : I<oops, iops, AddrMode3, 4, im, f, itin,
opc, asm, cstr, pattern> {
bits<4> Rt;
let Inst{27-25} = 0b000;
// FIXME: Merge with the above class when addrmode2 gets used for LDR, LDRB
// but for now use this class for LDRSBT, LDRHT, LDSHT.
-class AI3ldstidxT<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
+class AI3ldstidxT<bits<4> op, bit isLoad, dag oops, dag iops,
IndexMode im, Format f, InstrItinClass itin, string opc,
string asm, string cstr, list<dag> pattern>
- : I<oops, iops, AddrMode3, Size4Bytes, im, f, itin,
- opc, asm, cstr, pattern> {
+ : I<oops, iops, AddrMode3, 4, im, f, itin, opc, asm, cstr, pattern> {
// {13} 1 == imm8, 0 == Rm
// {12-9} Rn
// {8} isAdd
// {7-4} imm7_4/zero
// {3-0} imm3_0/Rm
- bits<14> addr;
- bits<4> Rt;
- let Inst{27-25} = 0b000;
- let Inst{24} = isPre; // P bit
- let Inst{23} = addr{8}; // U bit
- let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
- let Inst{20} = op20; // L bit
- let Inst{19-16} = addr{12-9}; // Rn
- let Inst{15-12} = Rt; // Rt
- let Inst{11-8} = addr{7-4}; // imm7_4/zero
- let Inst{7-4} = op;
- let Inst{3-0} = addr{3-0}; // imm3_0/Rm
- let AsmMatchConverter = "CvtLdWriteBackRegAddrMode3";
-}
-
-class AI3stridx<bits<4> op, bit isByte, bit isPre, dag oops, dag iops,
- IndexMode im, Format f, InstrItinClass itin, string opc,
- string asm, string cstr, list<dag> pattern>
- : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
- pattern> {
- // AM3 store w/ two operands: (GPR, am3offset)
- bits<14> offset;
+ bits<4> addr;
bits<4> Rt;
- bits<4> Rn;
let Inst{27-25} = 0b000;
- let Inst{23} = offset{8};
- let Inst{22} = offset{9};
- let Inst{19-16} = Rn;
+ let Inst{24} = 0; // P bit
+ let Inst{21} = 1;
+ let Inst{20} = isLoad; // L bit
+ let Inst{19-16} = addr; // Rn
let Inst{15-12} = Rt; // Rt
- let Inst{11-8} = offset{7-4}; // imm7_4/zero
let Inst{7-4} = op;
- let Inst{3-0} = offset{3-0}; // imm3_0/Rm
}
// stores
class AI3str<bits<4> op, dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+ : I<oops, iops, AddrMode3, 4, IndexModeNone, f, itin,
opc, asm, "", pattern> {
bits<14> addr;
bits<4> Rt;
let Inst{11-8} = addr{7-4}; // imm7_4/zero
let Inst{7-4} = op;
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
-}
-
-// Pre-indexed stores
-class AI3sthpr<dag oops, dag iops, Format f, InstrItinClass itin,
- string opc, string asm, string cstr, list<dag> pattern>
- : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
- opc, asm, cstr, pattern> {
- let Inst{4} = 1;
- let Inst{5} = 1; // H bit
- let Inst{6} = 0; // S bit
- let Inst{7} = 1;
- let Inst{20} = 0; // L bit
- let Inst{21} = 1; // W bit
- let Inst{24} = 1; // P bit
- let Inst{27-25} = 0b000;
-}
-class AI3stdpr<dag oops, dag iops, Format f, InstrItinClass itin,
- string opc, string asm, string cstr, list<dag> pattern>
- : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
- opc, asm, cstr, pattern> {
- let Inst{4} = 1;
- let Inst{5} = 1; // H bit
- let Inst{6} = 1; // S bit
- let Inst{7} = 1;
- let Inst{20} = 0; // L bit
- let Inst{21} = 1; // W bit
- let Inst{24} = 1; // P bit
- let Inst{27-25} = 0b000;
-}
-
-// Post-indexed stores
-class AI3sthpo<dag oops, dag iops, Format f, InstrItinClass itin,
- string opc, string asm, string cstr, list<dag> pattern>
- : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
- opc, asm, cstr,pattern> {
- // {13} 1 == imm8, 0 == Rm
- // {12-9} Rn
- // {8} isAdd
- // {7-4} imm7_4/zero
- // {3-0} imm3_0/Rm
- bits<14> addr;
- bits<4> Rt;
- let Inst{3-0} = addr{3-0}; // imm3_0/Rm
- let Inst{4} = 1;
- let Inst{5} = 1; // H bit
- let Inst{6} = 0; // S bit
- let Inst{7} = 1;
- let Inst{11-8} = addr{7-4}; // imm7_4/zero
- let Inst{15-12} = Rt; // Rt
- let Inst{19-16} = addr{12-9}; // Rn
- let Inst{20} = 0; // L bit
- let Inst{21} = 0; // W bit
- let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
- let Inst{23} = addr{8}; // U bit
- let Inst{24} = 0; // P bit
- let Inst{27-25} = 0b000;
-}
-class AI3stdpo<dag oops, dag iops, Format f, InstrItinClass itin,
- string opc, string asm, string cstr, list<dag> pattern>
- : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
- opc, asm, cstr, pattern> {
- let Inst{4} = 1;
- let Inst{5} = 1; // H bit
- let Inst{6} = 1; // S bit
- let Inst{7} = 1;
- let Inst{20} = 0; // L bit
- let Inst{21} = 0; // W bit
- let Inst{24} = 0; // P bit
- let Inst{27-25} = 0b000;
+ let DecoderMethod = "DecodeAddrMode3Instruction";
}
// addrmode4 instructions
class AXI4<dag oops, dag iops, IndexMode im, Format f, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
- : XI<oops, iops, AddrMode4, Size4Bytes, im, f, itin, asm, cstr, pattern> {
+ : XI<oops, iops, AddrMode4, 4, im, f, itin, asm, cstr, pattern> {
bits<4> p;
bits<16> regs;
bits<4> Rn;
// Unsigned multiply, multiply-accumulate instructions.
class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
opc, asm, "", pattern> {
let Inst{7-4} = 0b1001;
let Inst{20} = 0; // S bit
}
class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
+ : sI<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
opc, asm, "", pattern> {
let Inst{7-4} = 0b1001;
let Inst{27-21} = opcod;
// Most significant word multiply
class AMul2I<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
opc, asm, "", pattern> {
bits<4> Rd;
bits<4> Rn;
// SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
class AMulxyIbase<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, MulFrm, itin,
opc, asm, "", pattern> {
bits<4> Rn;
bits<4> Rm;
// Extend instructions.
class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ExtFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, ExtFrm, itin,
opc, asm, "", pattern> {
// All AExtI instructions have Rd and Rm register operands.
bits<4> Rd;
let Inst{7-4} = 0b0111;
let Inst{9-8} = 0b00;
let Inst{27-20} = opcod;
+
+ let Unpredictable{9-8} = 0b11;
}
// Misc Arithmetic instructions.
class AMiscA1I<bits<8> opcod, bits<4> opc7_4, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
opc, asm, "", pattern> {
bits<4> Rd;
bits<4> Rm;
let Inst{3-0} = Rm;
}
+// Division instructions.
+class ADivA1I<bits<3> opcod, dag oops, dag iops,
+ InstrItinClass itin, string opc, string asm, list<dag> pattern>
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
+ opc, asm, "", pattern> {
+ bits<4> Rd;
+ bits<4> Rn;
+ bits<4> Rm;
+ let Inst{27-23} = 0b01110;
+ let Inst{22-20} = opcod;
+ let Inst{19-16} = Rd;
+ let Inst{15-12} = 0b1111;
+ let Inst{11-8} = Rm;
+ let Inst{7-4} = 0b0001;
+ let Inst{3-0} = Rn;
+}
+
// PKH instructions
+def PKHLSLAsmOperand : ImmAsmOperand {
+ let Name = "PKHLSLImm";
+ let ParserMethod = "parsePKHLSLImm";
+}
+def pkh_lsl_amt: Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm < 32; }]>{
+ let PrintMethod = "printPKHLSLShiftImm";
+ let ParserMatchClass = PKHLSLAsmOperand;
+}
+def PKHASRAsmOperand : AsmOperandClass {
+ let Name = "PKHASRImm";
+ let ParserMethod = "parsePKHASRImm";
+}
+def pkh_asr_amt: Operand<i32>, ImmLeaf<i32, [{ return Imm > 0 && Imm <= 32; }]>{
+ let PrintMethod = "printPKHASRShiftImm";
+ let ParserMatchClass = PKHASRAsmOperand;
+}
+
class APKHI<bits<8> opcod, bit tb, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, itin,
+ : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
opc, asm, "", pattern> {
bits<4> Rd;
bits<4> Rn;
bits<4> Rm;
- bits<8> sh;
+ bits<5> sh;
let Inst{27-20} = opcod;
let Inst{19-16} = Rn;
let Inst{15-12} = Rd;
- let Inst{11-7} = sh{7-3};
+ let Inst{11-7} = sh;
let Inst{6} = tb;
let Inst{5-4} = 0b01;
let Inst{3-0} = Rm;
class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsARM, HasV5TE];
}
+// ARMV5MOPat - Same as ARMV5TEPat with UseMulOps.
+class ARMV5MOPat<dag pattern, dag result> : Pat<pattern, result> {
+ list<Predicate> Predicates = [IsARM, HasV5TE, UseMulOps];
+}
class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsARM, HasV6];
}
// Thumb Instruction Format Definitions.
//
-class ThumbI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class ThumbI<dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin, string asm, string cstr, list<dag> pattern>
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
// TI - Thumb instruction.
class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
- : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
+ : ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
// Two-address instructions
class TIt<dag oops, dag iops, InstrItinClass itin, string asm,
list<dag> pattern>
- : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "$lhs = $dst",
+ : ThumbI<oops, iops, AddrModeNone, 2, itin, asm, "$lhs = $dst",
pattern>;
// tBL, tBX 32-bit instructions
class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
dag oops, dag iops, InstrItinClass itin, string asm,
list<dag> pattern>
- : ThumbI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>,
+ : ThumbI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>,
Encoding {
let Inst{31-27} = opcod1;
let Inst{15-14} = opcod2;
let Inst{12} = opcod3;
}
-// Move to/from coprocessor instructions
-class T1Cop<dag oops, dag iops, string asm, list<dag> pattern>
- : ThumbI<oops, iops, AddrModeNone, Size4Bytes, NoItinerary, asm, "", pattern>,
- Encoding, Requires<[IsThumb, HasV6]> {
- let Inst{31-28} = 0b1110;
-}
-
// BR_JT instructions
class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
list<dag> pattern>
- : ThumbI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
+ : ThumbI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
// Thumb1 only
-class Thumb1I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class Thumb1I<dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin, string asm, string cstr, list<dag> pattern>
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
class T1I<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
- : Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
+ : Thumb1I<oops, iops, AddrModeNone, 2, itin, asm, "", pattern>;
class T1Ix2<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
- : Thumb1I<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
+ : Thumb1I<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
// Two-address instructions
class T1It<dag oops, dag iops, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
- : Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin,
+ : Thumb1I<oops, iops, AddrModeNone, 2, itin,
asm, cstr, pattern>;
// Thumb1 instruction that can either be predicated or set CPSR.
-class Thumb1sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class Thumb1sI<dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${s}${p}", asm);
let Pattern = pattern;
+ let thumbArithFlagSetting = 1;
list<Predicate> Predicates = [IsThumb, IsThumb1Only];
+ let DecoderNamespace = "ThumbSBit";
}
class T1sI<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
+ : Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
// Two-address instructions
class T1sIt<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
+ : Thumb1sI<oops, iops, AddrModeNone, 2, itin, opc, asm,
"$Rn = $Rdn", pattern>;
// Thumb1 instruction that can be predicated.
-class Thumb1pI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class Thumb1pI<dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
class T1pI<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
+ : Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm, "", pattern>;
// Two-address instructions
class T1pIt<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
+ : Thumb1pI<oops, iops, AddrModeNone, 2, itin, opc, asm,
"$Rn = $Rdn", pattern>;
class T1pIs<dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
- : Thumb1pI<oops, iops, AddrModeT1_s, Size2Bytes, itin, opc, asm, "", pattern>;
+ : Thumb1pI<oops, iops, AddrModeT1_s, 2, itin, opc, asm, "", pattern>;
class Encoding16 : Encoding {
let Inst{31-16} = 0x0000;
}
class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
+class T1BranchCond<bits<4> opcode> : Encoding16 {
+ let Inst{15-12} = opcode;
+}
+
// Helper classes to encode Thumb1 loads and stores. For immediates, the
// following bits are used for "opA" (see A6.2.4):
//
class T1pILdStEncode<bits<3> opcode, dag oops, dag iops, AddrMode am,
InstrItinClass itin, string opc, string asm,
list<dag> pattern>
- : Thumb1pI<oops, iops, am, Size2Bytes, itin, opc, asm, "", pattern>,
+ : Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
T1LoadStore<0b0101, opcode> {
bits<3> Rt;
bits<8> addr;
class T1pILdStEncodeImm<bits<4> opA, bit opB, dag oops, dag iops, AddrMode am,
InstrItinClass itin, string opc, string asm,
list<dag> pattern>
- : Thumb1pI<oops, iops, am, Size2Bytes, itin, opc, asm, "", pattern>,
+ : Thumb1pI<oops, iops, am, 2, itin, opc, asm, "", pattern>,
T1LoadStore<opA, {opB,?,?}> {
bits<3> Rt;
bits<8> addr;
}
// Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
-class Thumb2I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class Thumb2I<dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let AsmString = !strconcat(opc, "${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb2];
+ let DecoderNamespace = "Thumb2";
}
// Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as an
//
// FIXME: This uses unified syntax so {s} comes before {p}. We should make it
// more consistent.
-class Thumb2sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class Thumb2sI<dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let AsmString = !strconcat(opc, "${s}${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb2];
+ let DecoderNamespace = "Thumb2";
}
// Special cases
-class Thumb2XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class Thumb2XI<dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let AsmString = asm;
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb2];
+ let DecoderNamespace = "Thumb2";
}
-class ThumbXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class ThumbXI<dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let AsmString = asm;
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb, IsThumb1Only];
+ let DecoderNamespace = "Thumb";
}
class T2I<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb2I<oops, iops, AddrModeNone, Size4Bytes, itin, opc, asm, "", pattern>;
+ : Thumb2I<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
class T2Ii12<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb2I<oops, iops, AddrModeT2_i12, Size4Bytes, itin, opc, asm, "",pattern>;
+ : Thumb2I<oops, iops, AddrModeT2_i12, 4, itin, opc, asm, "",pattern>;
class T2Ii8<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb2I<oops, iops, AddrModeT2_i8, Size4Bytes, itin, opc, asm, "", pattern>;
+ : Thumb2I<oops, iops, AddrModeT2_i8, 4, itin, opc, asm, "", pattern>;
class T2Iso<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb2I<oops, iops, AddrModeT2_so, Size4Bytes, itin, opc, asm, "", pattern>;
+ : Thumb2I<oops, iops, AddrModeT2_so, 4, itin, opc, asm, "", pattern>;
class T2Ipc<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb2I<oops, iops, AddrModeT2_pc, Size4Bytes, itin, opc, asm, "", pattern>;
+ : Thumb2I<oops, iops, AddrModeT2_pc, 4, itin, opc, asm, "", pattern>;
class T2Ii8s4<bit P, bit W, bit isLoad, dag oops, dag iops, InstrItinClass itin,
- string opc, string asm, list<dag> pattern>
- : Thumb2I<oops, iops, AddrModeT2_i8s4, Size4Bytes, itin, opc, asm, "",
+ string opc, string asm, string cstr, list<dag> pattern>
+ : Thumb2I<oops, iops, AddrModeT2_i8s4, 4, itin, opc, asm, cstr,
pattern> {
bits<4> Rt;
bits<4> Rt2;
let Inst{11-8} = Rt2{3-0};
let Inst{7-0} = addr{7-0};
}
+class T2Ii8s4post<bit P, bit W, bit isLoad, dag oops, dag iops,
+ InstrItinClass itin, string opc, string asm, string cstr,
+ list<dag> pattern>
+ : Thumb2I<oops, iops, AddrModeT2_i8s4, 4, itin, opc, asm, cstr,
+ pattern> {
+ bits<4> Rt;
+ bits<4> Rt2;
+ bits<4> addr;
+ bits<9> imm;
+ let Inst{31-25} = 0b1110100;
+ let Inst{24} = P;
+ let Inst{23} = imm{8};
+ let Inst{22} = 1;
+ let Inst{21} = W;
+ let Inst{20} = isLoad;
+ let Inst{19-16} = addr;
+ let Inst{15-12} = Rt{3-0};
+ let Inst{11-8} = Rt2{3-0};
+ let Inst{7-0} = imm{7-0};
+}
class T2sI<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : Thumb2sI<oops, iops, AddrModeNone, Size4Bytes, itin, opc, asm, "", pattern>;
+ : Thumb2sI<oops, iops, AddrModeNone, 4, itin, opc, asm, "", pattern>;
class T2XI<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
- : Thumb2XI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
+ : Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, "", pattern>;
class T2JTI<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
- : Thumb2XI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
+ : Thumb2XI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
// Move to/from coprocessor instructions
-class T2Cop<dag oops, dag iops, string asm, list<dag> pattern>
- : T2XI<oops, iops, NoItinerary, asm, pattern>, Requires<[IsThumb2, HasV6]> {
- let Inst{31-28} = 0b1111;
+class T2Cop<bits<4> opc, dag oops, dag iops, string opcstr, string asm,
+ list<dag> pattern>
+ : T2I <oops, iops, NoItinerary, opcstr, asm, pattern>, Requires<[IsThumb2]> {
+ let Inst{31-28} = opc;
}
// Two-address instructions
class T2XIt<dag oops, dag iops, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
- : Thumb2XI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, cstr, pattern>;
+ : Thumb2XI<oops, iops, AddrModeNone, 4, itin, asm, cstr, pattern>;
-// T2Iidxldst - Thumb2 indexed load / store instructions.
-class T2Iidxldst<bit signed, bits<2> opcod, bit load, bit pre,
+// T2Ipreldst - Thumb2 pre-indexed load / store instructions.
+class T2Ipreldst<bit signed, bits<2> opcod, bit load, bit pre,
dag oops, dag iops,
AddrMode am, IndexMode im, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
- : InstARM<am, Size4Bytes, im, ThumbFrm, GenericDomain, cstr, itin> {
+ : InstARM<am, 4, im, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb2];
+ let DecoderNamespace = "Thumb2";
+
+ bits<4> Rt;
+ bits<13> addr;
let Inst{31-27} = 0b11111;
let Inst{26-25} = 0b00;
let Inst{24} = signed;
let Inst{23} = 0;
let Inst{22-21} = opcod;
let Inst{20} = load;
+ let Inst{19-16} = addr{12-9};
+ let Inst{15-12} = Rt{3-0};
let Inst{11} = 1;
// (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
let Inst{10} = pre; // The P bit.
+ let Inst{9} = addr{8}; // Sign bit
let Inst{8} = 1; // The W bit.
+ let Inst{7-0} = addr{7-0};
- bits<9> addr;
- let Inst{7-0} = addr{7-0};
- let Inst{9} = addr{8}; // Sign bit
+ let DecoderMethod = "DecodeT2LdStPre";
+}
+
+// T2Ipostldst - Thumb2 post-indexed load / store instructions.
+class T2Ipostldst<bit signed, bits<2> opcod, bit load, bit pre,
+ dag oops, dag iops,
+ AddrMode am, IndexMode im, InstrItinClass itin,
+ string opc, string asm, string cstr, list<dag> pattern>
+ : InstARM<am, 4, im, ThumbFrm, GenericDomain, cstr, itin> {
+ let OutOperandList = oops;
+ let InOperandList = !con(iops, (ins pred:$p));
+ let AsmString = !strconcat(opc, "${p}", asm);
+ let Pattern = pattern;
+ list<Predicate> Predicates = [IsThumb2];
+ let DecoderNamespace = "Thumb2";
bits<4> Rt;
bits<4> Rn;
+ bits<9> offset;
+ let Inst{31-27} = 0b11111;
+ let Inst{26-25} = 0b00;
+ let Inst{24} = signed;
+ let Inst{23} = 0;
+ let Inst{22-21} = opcod;
+ let Inst{20} = load;
+ let Inst{19-16} = Rn;
let Inst{15-12} = Rt{3-0};
- let Inst{19-16} = Rn{3-0};
+ let Inst{11} = 1;
+ // (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
+ let Inst{10} = pre; // The P bit.
+ let Inst{9} = offset{8}; // Sign bit
+ let Inst{8} = 1; // The W bit.
+ let Inst{7-0} = offset{7-0};
+
+ let DecoderMethod = "DecodeT2LdStPre";
}
// Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
//
// Almost all VFP instructions are predicable.
-class VFPI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class VFPI<dag oops, dag iops, AddrMode am, int sz,
IndexMode im, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
let AsmString = !strconcat(opc, "${p}", asm);
let Pattern = pattern;
let PostEncoderMethod = "VFPThumb2PostEncoder";
+ let DecoderNamespace = "VFP";
list<Predicate> Predicates = [HasVFP2];
}
// Special cases
-class VFPXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
+class VFPXI<dag oops, dag iops, AddrMode am, int sz,
IndexMode im, Format f, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
let AsmString = asm;
let Pattern = pattern;
let PostEncoderMethod = "VFPThumb2PostEncoder";
+ let DecoderNamespace = "VFP";
list<Predicate> Predicates = [HasVFP2];
}
class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : VFPI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
+ : VFPI<oops, iops, AddrModeNone, 4, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let PostEncoderMethod = "VFPThumb2PostEncoder";
}
class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
+ : VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
VFPLdStFrm, itin, opc, asm, "", pattern> {
// Instruction operands.
bits<5> Dd;
let Inst{15-12} = Dd{3-0};
let Inst{7-0} = addr{7-0}; // imm8
- // TODO: Mark the instructions with the appropriate subtarget info.
let Inst{27-24} = opcod1;
let Inst{21-20} = opcod2;
let Inst{11-9} = 0b101;
class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
InstrItinClass itin,
string opc, string asm, list<dag> pattern>
- : VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
+ : VFPI<oops, iops, AddrMode5, 4, IndexModeNone,
VFPLdStFrm, itin, opc, asm, "", pattern> {
// Instruction operands.
bits<5> Sd;
let Inst{15-12} = Sd{4-1};
let Inst{7-0} = addr{7-0}; // imm8
- // TODO: Mark the instructions with the appropriate subtarget info.
let Inst{27-24} = opcod1;
let Inst{21-20} = opcod2;
let Inst{11-9} = 0b101;
// VFP Load / store multiple pseudo instructions.
class PseudoVFPLdStM<dag oops, dag iops, InstrItinClass itin, string cstr,
list<dag> pattern>
- : InstARM<AddrMode4, Size4Bytes, IndexModeNone, Pseudo, VFPNeonDomain,
+ : InstARM<AddrMode4, 4, IndexModeNone, Pseudo, VFPNeonDomain,
cstr, itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
}
// Load / store multiple
+
+// Unknown precision
+class AXXI4<dag oops, dag iops, IndexMode im,
+ string asm, string cstr, list<dag> pattern>
+ : VFPXI<oops, iops, AddrMode4, 4, im,
+ VFPLdStFrm, NoItinerary, asm, cstr, pattern> {
+ // Instruction operands.
+ bits<4> Rn;
+ bits<13> regs;
+
+ // Encode instruction operands.
+ let Inst{19-16} = Rn;
+ let Inst{22} = 0;
+ let Inst{15-12} = regs{11-8};
+ let Inst{7-1} = regs{7-1};
+
+ let Inst{27-25} = 0b110;
+ let Inst{11-8} = 0b1011;
+ let Inst{0} = 1;
+}
+
+// Double precision
class AXDI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
- : VFPXI<oops, iops, AddrMode4, Size4Bytes, im,
+ : VFPXI<oops, iops, AddrMode4, 4, im,
VFPLdStMulFrm, itin, asm, cstr, pattern> {
// Instruction operands.
bits<4> Rn;
let Inst{19-16} = Rn;
let Inst{22} = regs{12};
let Inst{15-12} = regs{11-8};
- let Inst{7-0} = regs{7-0};
+ let Inst{7-1} = regs{7-1};
- // TODO: Mark the instructions with the appropriate subtarget info.
let Inst{27-25} = 0b110;
let Inst{11-9} = 0b101;
let Inst{8} = 1; // Double precision
+ let Inst{0} = 0;
}
+// Single Precision
class AXSI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
- : VFPXI<oops, iops, AddrMode4, Size4Bytes, im,
+ : VFPXI<oops, iops, AddrMode4, 4, im,
VFPLdStMulFrm, itin, asm, cstr, pattern> {
// Instruction operands.
bits<4> Rn;
let Inst{15-12} = regs{12-9};
let Inst{7-0} = regs{7-0};
- // TODO: Mark the instructions with the appropriate subtarget info.
let Inst{27-25} = 0b110;
let Inst{11-9} = 0b101;
let Inst{8} = 0; // Single precision
let Inst{8} = 1; // Double precision
let Inst{7-6} = opcod4;
let Inst{4} = opcod5;
+
+ let Predicates = [HasVFP2, HasDPVFP];
+}
+
+// Double precision, unary, not-predicated
+class ADuInp<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
+ bit opcod5, dag oops, dag iops, InstrItinClass itin,
+ string asm, list<dag> pattern>
+ : VFPXI<oops, iops, AddrModeNone, 4, IndexModeNone, VFPUnaryFrm, itin, asm, "", pattern> {
+ // Instruction operands.
+ bits<5> Dd;
+ bits<5> Dm;
+
+ let Inst{31-28} = 0b1111;
+
+ // Encode instruction operands.
+ let Inst{3-0} = Dm{3-0};
+ let Inst{5} = Dm{4};
+ let Inst{15-12} = Dd{3-0};
+ let Inst{22} = Dd{4};
+
+ let Inst{27-23} = opcod1;
+ let Inst{21-20} = opcod2;
+ let Inst{19-16} = opcod3;
+ let Inst{11-9} = 0b101;
+ let Inst{8} = 1; // Double precision
+ let Inst{7-6} = opcod4;
+ let Inst{4} = opcod5;
}
// Double precision, binary
let Inst{8} = 1; // Double precision
let Inst{6} = op6;
let Inst{4} = op4;
+
+ let Predicates = [HasVFP2, HasDPVFP];
}
-// Single precision, unary
+// FP, binary, not predicated
+class ADbInp<bits<5> opcod1, bits<2> opcod2, bit opcod3, dag oops, dag iops,
+ InstrItinClass itin, string asm, list<dag> pattern>
+ : VFPXI<oops, iops, AddrModeNone, 4, IndexModeNone, VFPBinaryFrm, itin,
+ asm, "", pattern>
+{
+ // Instruction operands.
+ bits<5> Dd;
+ bits<5> Dn;
+ bits<5> Dm;
+
+ let Inst{31-28} = 0b1111;
+
+ // Encode instruction operands.
+ let Inst{3-0} = Dm{3-0};
+ let Inst{5} = Dm{4};
+ let Inst{19-16} = Dn{3-0};
+ let Inst{7} = Dn{4};
+ let Inst{15-12} = Dd{3-0};
+ let Inst{22} = Dd{4};
+
+ let Inst{27-23} = opcod1;
+ let Inst{21-20} = opcod2;
+ let Inst{11-9} = 0b101;
+ let Inst{8} = 1; // double precision
+ let Inst{6} = opcod3;
+ let Inst{4} = 0;
+
+ let Predicates = [HasVFP2, HasDPVFP];
+}
+
+// Single precision, unary, predicated
class ASuI<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
string asm, list<dag> pattern>
let Inst{4} = opcod5;
}
+// Single precision, unary, non-predicated
+class ASuInp<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
+ bit opcod5, dag oops, dag iops, InstrItinClass itin,
+ string asm, list<dag> pattern>
+ : VFPXI<oops, iops, AddrModeNone, 4, IndexModeNone,
+ VFPUnaryFrm, itin, asm, "", pattern> {
+ // Instruction operands.
+ bits<5> Sd;
+ bits<5> Sm;
+
+ let Inst{31-28} = 0b1111;
+
+ // Encode instruction operands.
+ let Inst{3-0} = Sm{4-1};
+ let Inst{5} = Sm{0};
+ let Inst{15-12} = Sd{4-1};
+ let Inst{22} = Sd{0};
+
+ let Inst{27-23} = opcod1;
+ let Inst{21-20} = opcod2;
+ let Inst{19-16} = opcod3;
+ let Inst{11-9} = 0b101;
+ let Inst{8} = 0; // Single precision
+ let Inst{7-6} = opcod4;
+ let Inst{4} = opcod5;
+}
+
// Single precision unary, if no NEON. Same as ASuI except not available if
// NEON is enabled.
class ASuIn<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<2> opcod4,
let Inst{4} = op4;
}
+// Single precision, binary, not predicated
+class ASbInp<bits<5> opcod1, bits<2> opcod2, bit opcod3, dag oops, dag iops,
+ InstrItinClass itin, string asm, list<dag> pattern>
+ : VFPXI<oops, iops, AddrModeNone, 4, IndexModeNone,
+ VFPBinaryFrm, itin, asm, "", pattern>
+{
+ // Instruction operands.
+ bits<5> Sd;
+ bits<5> Sn;
+ bits<5> Sm;
+
+ let Inst{31-28} = 0b1111;
+
+ // Encode instruction operands.
+ let Inst{3-0} = Sm{4-1};
+ let Inst{5} = Sm{0};
+ let Inst{19-16} = Sn{4-1};
+ let Inst{7} = Sn{0};
+ let Inst{15-12} = Sd{4-1};
+ let Inst{22} = Sd{0};
+
+ let Inst{27-23} = opcod1;
+ let Inst{21-20} = opcod2;
+ let Inst{11-9} = 0b101;
+ let Inst{8} = 0; // Single precision
+ let Inst{6} = opcod3;
+ let Inst{4} = 0;
+}
+
// Single precision binary, if no NEON. Same as ASbI except not available if
// NEON is enabled.
class ASbIn<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
dag oops, dag iops, InstrItinClass itin, string opc, string asm,
list<dag> pattern>
: AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
+ bits<5> fbits;
// size (fixed-point number): sx == 0 ? 16 : 32
let Inst{7} = op5; // sx
+ let Inst{5} = fbits{0};
+ let Inst{3-0} = fbits{4-1};
}
// VFP conversion instructions, if no NEON
class NeonI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
InstrItinClass itin, string opc, string dt, string asm, string cstr,
list<dag> pattern>
- : InstARM<am, Size4Bytes, im, f, NeonDomain, cstr, itin> {
+ : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
let Pattern = pattern;
list<Predicate> Predicates = [HasNEON];
+ let DecoderNamespace = "NEON";
}
// Same as NeonI except it does not have a "data type" specifier.
class NeonXI<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
InstrItinClass itin, string opc, string asm, string cstr,
list<dag> pattern>
- : InstARM<am, Size4Bytes, im, f, NeonDomain, cstr, itin> {
+ : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", "\t", asm);
let Pattern = pattern;
list<Predicate> Predicates = [HasNEON];
+ let DecoderNamespace = "NEON";
+}
+
+// Same as NeonI except it is not predicated
+class NeonInp<dag oops, dag iops, AddrMode am, IndexMode im, Format f,
+ InstrItinClass itin, string opc, string dt, string asm, string cstr,
+ list<dag> pattern>
+ : InstARM<am, 4, im, f, NeonDomain, cstr, itin> {
+ let OutOperandList = oops;
+ let InOperandList = iops;
+ let AsmString = !strconcat(opc, ".", dt, "\t", asm);
+ let Pattern = pattern;
+ list<Predicate> Predicates = [HasNEON];
+ let DecoderNamespace = "NEON";
+
+ let Inst{31-28} = 0b1111;
}
class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
let Inst{7-4} = op7_4;
let PostEncoderMethod = "NEONThumb2LoadStorePostEncoder";
+ let DecoderNamespace = "NEONLoadStore";
bits<5> Vd;
bits<6> Rn;
}
class PseudoNLdSt<dag oops, dag iops, InstrItinClass itin, string cstr>
- : InstARM<AddrMode6, Size4Bytes, IndexModeNone, Pseudo, NeonDomain, cstr,
+ : InstARM<AddrMode6, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
class PseudoNeonI<dag oops, dag iops, InstrItinClass itin, string cstr,
list<dag> pattern>
- : InstARM<AddrModeNone, Size4Bytes, IndexModeNone, Pseudo, NeonDomain, cstr,
+ : InstARM<AddrModeNone, 4, IndexModeNone, Pseudo, NeonDomain, cstr,
itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
pattern> {
let Inst{31-25} = 0b1111001;
let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
+ let DecoderNamespace = "NEONData";
}
class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
cstr, pattern> {
let Inst{31-25} = 0b1111001;
let PostEncoderMethod = "NEONThumb2DataIPostEncoder";
+ let DecoderNamespace = "NEONData";
}
// NEON "one register and a modified immediate" format.
let Inst{24} = SIMM{7};
let Inst{18-16} = SIMM{6-4};
let Inst{3-0} = SIMM{3-0};
+ let DecoderMethod = "DecodeNEONModImmInstruction";
}
// NEON 2 vector register format.
let Inst{5} = Vm{4};
}
+// Same as N2V but not predicated.
+class N2Vnp<bits<2> op19_18, bits<2> op17_16, bits<3> op10_8, bit op7, bit op6,
+ dag oops, dag iops, InstrItinClass itin, string OpcodeStr,
+ string Dt, ValueType ResTy, ValueType OpTy, list<dag> pattern>
+ : NeonInp<oops, iops, AddrModeNone, IndexModeNone, N2RegFrm, itin,
+ OpcodeStr, Dt, "$Vd, $Vm", "", pattern> {
+ bits<5> Vd;
+ bits<5> Vm;
+
+ // Encode instruction operands
+ let Inst{22} = Vd{4};
+ let Inst{15-12} = Vd{3-0};
+ let Inst{5} = Vm{4};
+ let Inst{3-0} = Vm{3-0};
+
+ // Encode constant bits
+ let Inst{27-23} = 0b00111;
+ let Inst{21-20} = 0b11;
+ let Inst{19-18} = op19_18;
+ let Inst{17-16} = op17_16;
+ let Inst{11} = 0;
+ let Inst{10-8} = op10_8;
+ let Inst{7} = op7;
+ let Inst{6} = op6;
+ let Inst{4} = 0;
+
+ let DecoderNamespace = "NEON";
+}
+
// Same as N2V except it doesn't have a datatype suffix.
class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
bits<5> op11_7, bit op6, bit op4,
string opc, string dt, string asm, string cstr, list<dag> pattern>
: N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
-
// Instruction operands.
bits<5> Vd;
bits<5> Vn;
let Inst{5} = Vm{4};
}
+class N3Vnp<bits<5> op27_23, bits<2> op21_20, bits<4> op11_8, bit op6,
+ bit op4, dag oops, dag iops,Format f, InstrItinClass itin,
+ string OpcodeStr, string Dt, ValueType ResTy, ValueType OpTy,
+ SDPatternOperator IntOp, bit Commutable, list<dag> pattern>
+ : NeonInp<oops, iops, AddrModeNone, IndexModeNone, f, itin, OpcodeStr,
+ Dt, "$Vd, $Vn, $Vm", "", pattern> {
+ bits<5> Vd;
+ bits<5> Vn;
+ bits<5> Vm;
+
+ // Encode instruction operands
+ let Inst{22} = Vd{4};
+ let Inst{15-12} = Vd{3-0};
+ let Inst{19-16} = Vn{3-0};
+ let Inst{7} = Vn{4};
+ let Inst{5} = Vm{4};
+ let Inst{3-0} = Vm{3-0};
+
+ // Encode constant bits
+ let Inst{27-23} = op27_23;
+ let Inst{21-20} = op21_20;
+ let Inst{11-8} = op11_8;
+ let Inst{6} = op6;
+ let Inst{4} = op4;
+}
+
class N3VLane32<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string dt, string asm, string cstr,
class NVLaneOp<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string dt, string asm, list<dag> pattern>
- : InstARM<AddrModeNone, Size4Bytes, IndexModeNone, f, NeonDomain,
+ : InstARM<AddrModeNone, 4, IndexModeNone, f, NeonDomain,
"", itin> {
let Inst{27-20} = opcod1;
let Inst{11-8} = opcod2;
list<Predicate> Predicates = [HasNEON];
let PostEncoderMethod = "NEONThumb2DupPostEncoder";
+ let DecoderNamespace = "NEONDup";
bits<5> V;
bits<4> R;
bits<5> Vd;
bits<5> Vm;
- bits<4> lane;
let Inst{22} = Vd{4};
let Inst{15-12} = Vd{3-0};
class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [HasNEON,UseNEONForFP];
}
+
+// VFP/NEON Instruction aliases for type suffices.
+class VFPDataTypeInstAlias<string opc, string dt, string asm, dag Result> :
+ InstAlias<!strconcat(opc, dt, "\t", asm), Result>, Requires<[HasVFP2]>;
+
+multiclass VFPDTAnyInstAlias<string opc, string asm, dag Result> {
+ def : VFPDataTypeInstAlias<opc, ".8", asm, Result>;
+ def : VFPDataTypeInstAlias<opc, ".16", asm, Result>;
+ def : VFPDataTypeInstAlias<opc, ".32", asm, Result>;
+ def : VFPDataTypeInstAlias<opc, ".64", asm, Result>;
+}
+
+multiclass NEONDTAnyInstAlias<string opc, string asm, dag Result> {
+ let Predicates = [HasNEON] in {
+ def : VFPDataTypeInstAlias<opc, ".8", asm, Result>;
+ def : VFPDataTypeInstAlias<opc, ".16", asm, Result>;
+ def : VFPDataTypeInstAlias<opc, ".32", asm, Result>;
+ def : VFPDataTypeInstAlias<opc, ".64", asm, Result>;
+}
+}
+
+// The same alias classes using AsmPseudo instead, for the more complex
+// stuff in NEON that InstAlias can't quite handle.
+// Note that we can't use anonymous defm references here like we can
+// above, as we care about the ultimate instruction enum names generated, unlike
+// for instalias defs.
+class NEONDataTypeAsmPseudoInst<string opc, string dt, string asm, dag iops> :
+ AsmPseudoInst<!strconcat(opc, dt, "\t", asm), iops>, Requires<[HasNEON]>;
+
+// Data type suffix token aliases. Implements Table A7-3 in the ARM ARM.
+def : TokenAlias<".s8", ".i8">;
+def : TokenAlias<".u8", ".i8">;
+def : TokenAlias<".s16", ".i16">;
+def : TokenAlias<".u16", ".i16">;
+def : TokenAlias<".s32", ".i32">;
+def : TokenAlias<".u32", ".i32">;
+def : TokenAlias<".s64", ".i64">;
+def : TokenAlias<".u64", ".i64">;
+
+def : TokenAlias<".i8", ".8">;
+def : TokenAlias<".i16", ".16">;
+def : TokenAlias<".i32", ".32">;
+def : TokenAlias<".i64", ".64">;
+
+def : TokenAlias<".p8", ".8">;
+def : TokenAlias<".p16", ".16">;
+
+def : TokenAlias<".f32", ".32">;
+def : TokenAlias<".f64", ".64">;
+def : TokenAlias<".f", ".f32">;
+def : TokenAlias<".d", ".f64">;
projects / oota-llvm.git / blobdiff