ARMInstrFormats.td [plain text]
//===- ARMInstrFormats.td - ARM Instruction Formats --*- tablegen -*---------=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//
// ARM Instruction Format Definitions.
//
// Format specifies the encoding used by the instruction. This is part of the
// ad-hoc solution used to emit machine instruction encodings by our machine
// code emitter.
class Format<bits<6> val> {
bits<6> Value = val;
}
def Pseudo : Format<0>;
def MulFrm : Format<1>;
def BrFrm : Format<2>;
def BrMiscFrm : Format<3>;
def DPFrm : Format<4>;
def DPSoRegFrm : Format<5>;
def LdFrm : Format<6>;
def StFrm : Format<7>;
def LdMiscFrm : Format<8>;
def StMiscFrm : Format<9>;
def LdStMulFrm : Format<10>;
def LdStExFrm : Format<11>;
def ArithMiscFrm : Format<12>;
def SatFrm : Format<13>;
def ExtFrm : Format<14>;
def VFPUnaryFrm : Format<15>;
def VFPBinaryFrm : Format<16>;
def VFPConv1Frm : Format<17>;
def VFPConv2Frm : Format<18>;
def VFPConv3Frm : Format<19>;
def VFPConv4Frm : Format<20>;
def VFPConv5Frm : Format<21>;
def VFPLdStFrm : Format<22>;
def VFPLdStMulFrm : Format<23>;
def VFPMiscFrm : Format<24>;
def ThumbFrm : Format<25>;
def MiscFrm : Format<26>;
def NGetLnFrm : Format<27>;
def NSetLnFrm : Format<28>;
def NDupFrm : Format<29>;
def NLdStFrm : Format<30>;
def N1RegModImmFrm: Format<31>;
def N2RegFrm : Format<32>;
def NVCVTFrm : Format<33>;
def NVDupLnFrm : Format<34>;
def N2RegVShLFrm : Format<35>;
def N2RegVShRFrm : Format<36>;
def N3RegFrm : Format<37>;
def N3RegVShFrm : Format<38>;
def NVExtFrm : Format<39>;
def NVMulSLFrm : Format<40>;
def NVTBLFrm : Format<41>;
// Misc flags.
// the instruction has a Rn register operand.
// UnaryDP - Indicates this is a unary data processing instruction, i.e.
// it doesn't have a Rn operand.
class UnaryDP { bit isUnaryDataProc = 1; }
// Xform16Bit - Indicates this Thumb2 instruction may be transformed into
// a 16-bit Thumb instruction if certain conditions are met.
class Xform16Bit { bit canXformTo16Bit = 1; }
//===----------------------------------------------------------------------===//
// ARM Instruction flags. These need to match ARMBaseInstrInfo.h.
//
// Addressing mode.
class AddrMode<bits<5> val> {
bits<5> Value = val;
}
def AddrModeNone : AddrMode<0>;
def AddrMode1 : AddrMode<1>;
def AddrMode2 : AddrMode<2>;
def AddrMode3 : AddrMode<3>;
def AddrMode4 : AddrMode<4>;
def AddrMode5 : AddrMode<5>;
def AddrMode6 : AddrMode<6>;
def AddrModeT1_1 : AddrMode<7>;
def AddrModeT1_2 : AddrMode<8>;
def AddrModeT1_4 : AddrMode<9>;
def AddrModeT1_s : AddrMode<10>;
def AddrModeT2_i12 : AddrMode<11>;
def AddrModeT2_i8 : AddrMode<12>;
def AddrModeT2_so : AddrMode<13>;
def AddrModeT2_pc : AddrMode<14>;
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;
}
def IndexModeNone : IndexMode<0>;
def IndexModePre : IndexMode<1>;
def IndexModePost : IndexMode<2>;
def IndexModeUpd : IndexMode<3>;
// Instruction execution domain.
class Domain<bits<2> val> {
bits<2> Value = val;
}
def GenericDomain : Domain<0>;
def VFPDomain : Domain<1>; // Instructions in VFP domain only
def NeonDomain : Domain<2>; // Instructions in Neon domain only
def VFPNeonDomain : Domain<3>; // Instructions in both VFP & Neon domains
//===----------------------------------------------------------------------===//
// ARM special operands.
//
def CondCodeOperand : AsmOperandClass {
let Name = "CondCode";
let SuperClasses = [];
}
// 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),
(ops (i32 14), (i32 zero_reg))> {
let PrintMethod = "printPredicateOperand";
let ParserMatchClass = CondCodeOperand;
}
// Conditional code result for instructions whose 's' bit is set, e.g. subs.
def cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 zero_reg))> {
string EncoderMethod = "getCCOutOpValue";
let PrintMethod = "printSBitModifierOperand";
}
// Same as cc_out except it defaults to setting CPSR.
def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
string EncoderMethod = "getCCOutOpValue";
let PrintMethod = "printSBitModifierOperand";
}
// ARM special operands for disassembly only.
//
def setend_op : Operand<i32> {
let PrintMethod = "printSetendOperand";
}
def cps_opt : Operand<i32> {
let PrintMethod = "printCPSOptionOperand";
}
def msr_mask : Operand<i32> {
let PrintMethod = "printMSRMaskOperand";
}
// A8.6.117, A8.6.118. Different instructions are generated for #0 and #-0.
// The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
def neg_zero : Operand<i32> {
let PrintMethod = "printNegZeroOperand";
}
//===----------------------------------------------------------------------===//
// ARM Instruction templates.
//
class InstTemplate<AddrMode am, SizeFlagVal sz, IndexMode im,
Format f, Domain d, string cstr, InstrItinClass itin>
: Instruction {
let Namespace = "ARM";
AddrMode AM = am;
SizeFlagVal SZ = sz;
IndexMode IM = im;
bits<2> IndexModeBits = IM.Value;
Format F = f;
bits<6> Form = F.Value;
Domain D = d;
bit isUnaryDataProc = 0;
bit canXformTo16Bit = 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.
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{19-18} = D.Value;
let Constraints = cstr;
let Itinerary = itin;
}
class Encoding {
field bits<32> Inst;
}
class InstARM<AddrMode am, SizeFlagVal sz, IndexMode im,
Format f, Domain d, string cstr, InstrItinClass itin>
: InstTemplate<am, sz, im, f, d, cstr, itin>, Encoding;
// 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,
Format f, Domain d, string cstr, InstrItinClass itin>
: InstTemplate<am, sz, im, f, d, cstr, itin>;
class PseudoInst<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
: InstARM<AddrModeNone, SizeSpecial, IndexModeNone, Pseudo, GenericDomain,
"", itin> {
let OutOperandList = oops;
let InOperandList = iops;
let AsmString = asm;
let Pattern = pattern;
}
// Almost all ARM instructions are predicable.
class I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
IndexMode im, Format f, InstrItinClass itin,
string opc, string asm, string cstr,
list<dag> pattern>
: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
bits<4> p;
let Inst{31-28} = p;
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsARM];
}
// A few are not predicable
class InoP<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
IndexMode im, Format f, InstrItinClass itin,
string opc, string asm, string cstr,
list<dag> pattern>
: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = iops;
let AsmString = !strconcat(opc, asm);
let Pattern = pattern;
let isPredicable = 0;
list<Predicate> Predicates = [IsARM];
}
// 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,
IndexMode im, Format f, InstrItinClass itin,
string opc, string asm, string cstr,
list<dag> pattern>
: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
bits<4> p; // Predicate operand
bits<1> s; // condition-code set flag ('1' if the insn should set the flags)
let Inst{31-28} = p;
let Inst{20} = s;
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
let AsmString = !strconcat(opc, "${s}${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsARM];
}
// Special cases
class XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
IndexMode im, Format f, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, im, f, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = iops;
let AsmString = asm;
let Pattern = pattern;
list<Predicate> Predicates = [IsARM];
}
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,
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,
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,
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,
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,
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,
asm, "", pattern> {
let Inst{27-24} = opcod;
}
class ABXIx2<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrModeNone, Size8Bytes, IndexModeNone, Pseudo, itin,
asm, "", pattern>;
// BR_JT instructions
class JTI<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrModeNone, SizeSpecial, IndexModeNone, BrMiscFrm, itin,
asm, "", pattern>;
// Atomic load/store instructions
class AIldrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
opc, asm, "", pattern> {
let Inst{27-23} = 0b00011;
let Inst{22-21} = opcod;
let Inst{20} = 1;
let Inst{11-0} = 0b111110011111;
}
class AIstrex<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, LdStExFrm, itin,
opc, asm, "", pattern> {
let Inst{27-23} = 0b00011;
let Inst{22-21} = opcod;
let Inst{20} = 0;
let Inst{11-4} = 0b11111001;
}
// 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,
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,
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,
asm, "", pattern> {
let Inst{24-21} = opcod;
let Inst{27-26} = 0b00;
}
class AI1x2<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode1, Size8Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern>;
// addrmode2 loads and stores
class AI2<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{27-26} = 0b01;
}
// loads
// LDR/LDRB/STR/STRB
class AIldst1<bits<3> op, bit opc22, bit isLd, 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,
"", pattern> {
let Inst{27-25} = op;
let Inst{24} = 1; // 24 == P
// 23 == U
let Inst{22} = opc22;
let Inst{21} = 0; // 21 == W
let Inst{20} = isLd;
}
// LDRH/LDRSB/LDRSH/LDRD
class AIldr2<bits<4> op, bit opc22, bit opc20, 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,
"", pattern> {
let Inst{27-25} = 0b000;
let Inst{24} = 1; // 24 == P
// 23 == U
let Inst{22} = opc22;
let Inst{21} = 0; // 21 == W
let Inst{20} = opc20;
let Inst{7-4} = op;
}
class AI2ldw<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
class AXI2ldw<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
asm, "", pattern> {
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
class AI2ldb<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 1; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
class AXI2ldb<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
asm, "", pattern> {
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 1; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
// stores
class AI2stw<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{20} = 0; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
class AXI2stw<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
asm, "", pattern> {
let Inst{20} = 0; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
class AI2stb<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{20} = 0; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 1; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
class AXI2stb<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
asm, "", pattern> {
let Inst{20} = 0; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 1; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
// Pre-indexed loads
class AI2ldwpr<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
opc, asm, cstr, pattern> {
let Inst{20} = 1; // L bit
let Inst{21} = 1; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
class AI2ldbpr<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
opc, asm, cstr, pattern> {
let Inst{20} = 1; // L bit
let Inst{21} = 1; // W bit
let Inst{22} = 1; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
// Pre-indexed stores
class AI2stwpr<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
opc, asm, cstr, pattern> {
let Inst{20} = 0; // L bit
let Inst{21} = 1; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
class AI2stbpr<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
opc, asm, cstr, pattern> {
let Inst{20} = 0; // L bit
let Inst{21} = 1; // W bit
let Inst{22} = 1; // B bit
let Inst{24} = 1; // P bit
let Inst{27-26} = 0b01;
}
// Post-indexed loads
class AI2ldwpo<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
opc, asm, cstr,pattern> {
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 0; // P bit
let Inst{27-26} = 0b01;
}
class AI2ldbpo<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
opc, asm, cstr,pattern> {
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 1; // B bit
let Inst{24} = 0; // P bit
let Inst{27-26} = 0b01;
}
// Post-indexed stores
class AI2stwpo<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
opc, asm, cstr,pattern> {
let Inst{20} = 0; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 0; // P bit
let Inst{27-26} = 0b01;
}
class AI2stbpo<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
opc, asm, cstr,pattern> {
let Inst{20} = 0; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 1; // B bit
let Inst{24} = 0; // P bit
let Inst{27-26} = 0b01;
}
// addrmode3 instructions
class AI3<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern>;
class AXI3<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
asm, "", pattern>;
// loads
class AI3ldh<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{4} = 1;
let Inst{5} = 1; // H bit
let Inst{6} = 0; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 1; // P bit
let Inst{27-25} = 0b000;
}
class AXI3ldh<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
asm, "", pattern> {
let Inst{4} = 1;
let Inst{5} = 1; // H bit
let Inst{6} = 0; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 1; // P bit
}
class AI3ldsh<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{4} = 1;
let Inst{5} = 1; // H bit
let Inst{6} = 1; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 1; // P bit
let Inst{27-25} = 0b000;
}
class AXI3ldsh<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
asm, "", pattern> {
let Inst{4} = 1;
let Inst{5} = 1; // H bit
let Inst{6} = 1; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 1; // P bit
}
class AI3ldsb<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{4} = 1;
let Inst{5} = 0; // H bit
let Inst{6} = 1; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 1; // P bit
let Inst{27-25} = 0b000;
}
class AXI3ldsb<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
asm, "", pattern> {
let Inst{4} = 1;
let Inst{5} = 0; // H bit
let Inst{6} = 1; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 1; // P bit
}
class AI3ldd<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern> {
let Inst{4} = 1;
let Inst{5} = 0; // 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} = 1; // P bit
let Inst{27-25} = 0b000;
}
// stores
class AI3sth<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", 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} = 0; // W bit
let Inst{24} = 1; // P bit
let Inst{27-25} = 0b000;
}
class AXI3sth<dag oops, dag iops, Format f, InstrItinClass itin,
string asm, list<dag> pattern>
: XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
asm, "", 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} = 0; // W bit
let Inst{24} = 1; // P bit
}
class AI3std<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", 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} = 1; // P bit
let Inst{27-25} = 0b000;
}
// Pre-indexed loads
class AI3ldhpr<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} = 1; // L bit
let Inst{21} = 1; // W bit
let Inst{24} = 1; // P bit
let Inst{27-25} = 0b000;
}
class AI3ldshpr<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} = 1; // L bit
let Inst{21} = 1; // W bit
let Inst{24} = 1; // P bit
let Inst{27-25} = 0b000;
}
class AI3ldsbpr<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} = 0; // H bit
let Inst{6} = 1; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 1; // W bit
let Inst{24} = 1; // P bit
let Inst{27-25} = 0b000;
}
class AI3lddpr<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} = 0; // 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;
}
// 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 loads
class AI3ldhpo<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} = 0; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 0; // P bit
let Inst{27-25} = 0b000;
}
class AI3ldshpo<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} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 0; // P bit
let Inst{27-25} = 0b000;
}
class AI3ldsbpo<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} = 0; // H bit
let Inst{6} = 1; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{24} = 0; // P bit
let Inst{27-25} = 0b000;
}
class AI3lddpo<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} = 0; // 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;
}
// 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> {
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} = 0; // W 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;
}
// addrmode4 instructions
class AXI4ld<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> {
let Inst{20} = 1; // L bit
let Inst{22} = 0; // S bit
let Inst{27-25} = 0b100;
}
class AXI4st<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> {
let Inst{20} = 0; // L bit
let Inst{22} = 0; // S bit
let Inst{27-25} = 0b100;
}
// 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,
opc, asm, "", pattern> {
let Inst{7-4} = 0b1001;
let Inst{20} = 0; // S bit
let Inst{27-21} = opcod;
}
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,
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,
opc, asm, "", pattern> {
bits<4> Rd;
bits<4> Rn;
bits<4> Rm;
let Inst{7-4} = opc7_4;
let Inst{20} = 1;
let Inst{27-21} = opcod;
let Inst{19-16} = Rd;
let Inst{11-8} = Rm;
let Inst{3-0} = Rn;
}
// MSW multiple w/ Ra operand
class AMul2Ia<bits<7> opcod, bits<4> opc7_4, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: AMul2I<opcod, opc7_4, oops, iops, itin, opc, asm, pattern> {
bits<4> Ra;
let Inst{15-12} = Ra;
}
// 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,
opc, asm, "", pattern> {
bits<4> Rn;
bits<4> Rm;
let Inst{4} = 0;
let Inst{7} = 1;
let Inst{20} = 0;
let Inst{27-21} = opcod;
let Inst{6-5} = bit6_5;
let Inst{11-8} = Rm;
let Inst{3-0} = Rn;
}
class AMulxyI<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
bits<4> Rd;
let Inst{19-16} = Rd;
}
// AMulxyI with Ra operand
class AMulxyIa<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: AMulxyI<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
bits<4> Ra;
let Inst{15-12} = Ra;
}
// SMLAL*
class AMulxyI64<bits<7> opcod, bits<2> bit6_5, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: AMulxyIbase<opcod, bit6_5, oops, iops, itin, opc, asm, pattern> {
bits<4> RdLo;
bits<4> RdHi;
let Inst{19-16} = RdHi;
let Inst{15-12} = RdLo;
}
// 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,
opc, asm, "", pattern> {
// All AExtI instructions have Rd and Rm register operands.
bits<4> Rd;
bits<4> Rm;
let Inst{15-12} = Rd;
let Inst{3-0} = Rm;
let Inst{7-4} = 0b0111;
let Inst{9-8} = 0b00;
let Inst{27-20} = opcod;
}
// 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,
opc, asm, "", pattern> {
bits<4> Rd;
bits<4> Rm;
let Inst{27-20} = opcod;
let Inst{19-16} = 0b1111;
let Inst{15-12} = Rd;
let Inst{11-8} = 0b1111;
let Inst{7-4} = opc7_4;
let Inst{3-0} = Rm;
}
// PKH instructions
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,
opc, asm, "", pattern> {
bits<4> Rd;
bits<4> Rn;
bits<4> Rm;
bits<8> 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{6} = tb;
let Inst{5-4} = 0b01;
let Inst{3-0} = Rm;
}
//===----------------------------------------------------------------------===//
// ARMPat - Same as Pat<>, but requires that the compiler be in ARM mode.
class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsARM];
}
class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsARM, HasV5TE];
}
class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsARM, HasV6];
}
//===----------------------------------------------------------------------===//
//
// Thumb Instruction Format Definitions.
//
// TI - Thumb instruction.
class ThumbI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
InstrItinClass itin, string asm, string cstr, list<dag> pattern>
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = iops;
let AsmString = asm;
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb];
}
class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
: ThumbI<oops, iops, AddrModeNone, Size2Bytes, 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 = $dst",
pattern>;
// tBL, tBX 32-bit instructions
class TIx2<bits<5> opcod1, bits<2> opcod2, bit opcod3,
dag oops, dag iops, InstrItinClass itin, string asm,
list<dag> pattern>
: ThumbI<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>,
Encoding {
let Inst{31-27} = opcod1;
let Inst{15-14} = opcod2;
let Inst{12} = opcod3;
}
// BR_JT instructions
class TJTI<dag oops, dag iops, InstrItinClass itin, string asm,
list<dag> pattern>
: ThumbI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
// Thumb1 only
class Thumb1I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
InstrItinClass itin, string asm, string cstr, list<dag> pattern>
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = iops;
let AsmString = asm;
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb1Only];
}
class T1I<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
: Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
class T1Ix2<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
: Thumb1I<oops, iops, AddrModeNone, Size4Bytes, itin, asm, "", pattern>;
class T1JTI<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
: Thumb1I<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
// Two-address instructions
class T1It<dag oops, dag iops, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: Thumb1I<oops, iops, AddrModeNone, Size2Bytes, itin,
asm, cstr, pattern>;
// Thumb1 instruction that can either be predicated or set CPSR.
class Thumb1sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = !con(oops, (outs s_cc_out:$s));
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${s}${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb1Only];
}
class T1sI<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
// Two-address instructions
class T1sIt<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb1sI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
"$lhs = $dst", pattern>;
// Thumb1 instruction that can be predicated.
class Thumb1pI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstThumb<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb1Only];
}
class T1pI<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm, "", pattern>;
// Two-address instructions
class T1pIt<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb1pI<oops, iops, AddrModeNone, Size2Bytes, itin, opc, asm,
"$lhs = $dst", pattern>;
class T1pI1<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb1pI<oops, iops, AddrModeT1_1, Size2Bytes, itin, opc, asm, "", pattern>;
class T1pI2<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb1pI<oops, iops, AddrModeT1_2, Size2Bytes, itin, opc, asm, "", pattern>;
class T1pI4<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb1pI<oops, iops, AddrModeT1_4, Size2Bytes, itin, opc, asm, "", 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>;
class Encoding16 : Encoding {
let Inst{31-16} = 0x0000;
}
// A6.2 16-bit Thumb instruction encoding
class T1Encoding<bits<6> opcode> : Encoding16 {
let Inst{15-10} = opcode;
}
// A6.2.1 Shift (immediate), add, subtract, move, and compare encoding.
class T1General<bits<5> opcode> : Encoding16 {
let Inst{15-14} = 0b00;
let Inst{13-9} = opcode;
}
// A6.2.2 Data-processing encoding.
class T1DataProcessing<bits<4> opcode> : Encoding16 {
let Inst{15-10} = 0b010000;
let Inst{9-6} = opcode;
}
// A6.2.3 Special data instructions and branch and exchange encoding.
class T1Special<bits<4> opcode> : Encoding16 {
let Inst{15-10} = 0b010001;
let Inst{9-6} = opcode;
}
// A6.2.4 Load/store single data item encoding.
class T1LoadStore<bits<4> opA, bits<3> opB> : Encoding16 {
let Inst{15-12} = opA;
let Inst{11-9} = opB;
}
class T1LdSt<bits<3> opB> : T1LoadStore<0b0101, opB>;
class T1LdSt4Imm<bits<3> opB> : T1LoadStore<0b0110, opB>; // Immediate, 4 bytes
class T1LdSt1Imm<bits<3> opB> : T1LoadStore<0b0111, opB>; // Immediate, 1 byte
class T1LdSt2Imm<bits<3> opB> : T1LoadStore<0b1000, opB>; // Immediate, 2 bytes
class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
// A6.2.5 Miscellaneous 16-bit instructions encoding.
class T1Misc<bits<7> opcode> : Encoding16 {
let Inst{15-12} = 0b1011;
let Inst{11-5} = opcode;
}
// Thumb2I - Thumb2 instruction. Almost all Thumb2 instructions are predicable.
class Thumb2I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb2];
}
// Same as Thumb2I except it can optionally modify CPSR. Note it's modeled as an
// input operand since by default it's a zero register. It will become an
// implicit def once it's "flipped".
//
// FIXME: This uses unified syntax so {s} comes before {p}. We should make it
// more consistent.
class Thumb2sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p, cc_out:$s));
let AsmString = !strconcat(opc, "${s}${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb2];
}
// Special cases
class Thumb2XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = iops;
let AsmString = asm;
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb2];
}
class ThumbXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, IndexModeNone, ThumbFrm, GenericDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = iops;
let AsmString = asm;
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb1Only];
}
class T2I<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb2I<oops, iops, AddrModeNone, Size4Bytes, 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>;
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>;
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>;
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>;
class T2Ii8s4<bit P, bit W, bit load, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb2I<oops, iops, AddrModeT2_i8s4, Size4Bytes, itin, opc, asm, "",
pattern> {
let Inst{31-27} = 0b11101;
let Inst{26-25} = 0b00;
let Inst{24} = P;
let Inst{23} = ?; // The U bit.
let Inst{22} = 1;
let Inst{21} = W;
let Inst{20} = load;
}
class T2sI<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb2sI<oops, iops, AddrModeNone, Size4Bytes, 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>;
class T2JTI<dag oops, dag iops, InstrItinClass itin,
string asm, list<dag> pattern>
: Thumb2XI<oops, iops, AddrModeNone, SizeSpecial, itin, asm, "", pattern>;
class T2Ix2<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: Thumb2I<oops, iops, AddrModeNone, Size8Bytes, itin, opc, asm, "", pattern>;
// 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>;
// T2Iidxldst - Thumb2 indexed load / store instructions.
class T2Iidxldst<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> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [IsThumb2];
let Inst{31-27} = 0b11111;
let Inst{26-25} = 0b00;
let Inst{24} = signed;
let Inst{23} = 0;
let Inst{22-21} = opcod;
let Inst{20} = load;
let Inst{11} = 1;
// (P, W) = (1, 1) Pre-indexed or (0, 1) Post-indexed
let Inst{10} = pre; // The P bit.
let Inst{8} = 1; // The W bit.
}
// Helper class for disassembly only
// A6.3.16 & A6.3.17
// T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
class T2I_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: T2I<oops, iops, itin, opc, asm, pattern> {
let Inst{31-27} = 0b11111;
let Inst{26-24} = 0b011;
let Inst{23} = long;
let Inst{22-20} = op22_20;
let Inst{7-4} = op7_4;
}
// Tv5Pat - Same as Pat<>, but requires V5T Thumb mode.
class Tv5Pat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsThumb1Only, HasV5T];
}
// T1Pat - Same as Pat<>, but requires that the compiler be in Thumb1 mode.
class T1Pat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsThumb1Only];
}
// T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsThumb2];
}
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// ARM VFP Instruction templates.
//
// Almost all VFP instructions are predicable.
class VFPI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
IndexMode im, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
bits<4> p;
let Inst{31-28} = p;
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", asm);
let Pattern = pattern;
list<Predicate> Predicates = [HasVFP2];
}
// Special cases
class VFPXI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
IndexMode im, Format f, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: InstARM<am, sz, im, f, VFPDomain, cstr, itin> {
let OutOperandList = oops;
let InOperandList = iops;
let AsmString = asm;
let Pattern = pattern;
list<Predicate> Predicates = [HasVFP2];
}
class VFPAI<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: VFPI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
opc, asm, "", pattern>;
// ARM VFP addrmode5 loads and stores
class ADI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
VFPLdStFrm, itin, opc, asm, "", pattern> {
// TODO: Mark the instructions with the appropriate subtarget info.
let Inst{27-24} = opcod1;
let Inst{21-20} = opcod2;
let Inst{11-9} = 0b101;
let Inst{8} = 1; // Double precision
// 64-bit loads & stores operate on both NEON and VFP pipelines.
let D = VFPNeonDomain;
}
class ASI5<bits<4> opcod1, bits<2> opcod2, dag oops, dag iops,
InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: VFPI<oops, iops, AddrMode5, Size4Bytes, IndexModeNone,
VFPLdStFrm, itin, opc, asm, "", pattern> {
// TODO: Mark the instructions with the appropriate subtarget info.
let Inst{27-24} = opcod1;
let Inst{21-20} = opcod2;
let Inst{11-9} = 0b101;
let Inst{8} = 0; // Single precision
}
// VFP Load / store multiple pseudo instructions.
class PseudoVFPLdStM<dag oops, dag iops, InstrItinClass itin, string cstr,
list<dag> pattern>
: InstARM<AddrMode4, Size4Bytes, IndexModeNone, Pseudo, VFPNeonDomain,
cstr, itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let Pattern = pattern;
list<Predicate> Predicates = [HasVFP2];
}
// Load / store multiple
class AXDI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: VFPXI<oops, iops, AddrMode4, Size4Bytes, im,
VFPLdStMulFrm, itin, asm, cstr, pattern> {
// 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
// 64-bit loads & stores operate on both NEON and VFP pipelines.
let D = VFPNeonDomain;
}
class AXSI4<dag oops, dag iops, IndexMode im, InstrItinClass itin,
string asm, string cstr, list<dag> pattern>
: VFPXI<oops, iops, AddrMode4, Size4Bytes, im,
VFPLdStMulFrm, itin, asm, cstr, pattern> {
// 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
}
// Double precision, unary
class ADuI<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>
: VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
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
class ADbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
dag iops, InstrItinClass itin, string opc, string asm,
list<dag> pattern>
: VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
let Inst{27-23} = opcod1;
let Inst{21-20} = opcod2;
let Inst{11-9} = 0b101;
let Inst{8} = 1; // Double precision
let Inst{6} = op6;
let Inst{4} = op4;
}
// Double precision, binary, VML[AS] (for additional predicate)
class ADbI_vmlX<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops,
dag iops, InstrItinClass itin, string opc, string asm,
list<dag> pattern>
: VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
let Inst{27-23} = opcod1;
let Inst{21-20} = opcod2;
let Inst{11-9} = 0b101;
let Inst{8} = 1; // Double precision
let Inst{6} = op6;
let Inst{4} = op4;
list<Predicate> Predicates = [HasVFP2, UseVMLx];
}
// Single precision, unary
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>
: VFPAI<oops, iops, VFPUnaryFrm, itin, opc, asm, pattern> {
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,
bit opcod5, dag oops, dag iops, InstrItinClass itin, string opc,
string asm, list<dag> pattern>
: ASuI<opcod1, opcod2, opcod3, opcod4, opcod5, oops, iops, itin, opc, asm,
pattern> {
list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
}
// Single precision, binary
class ASbI<bits<5> opcod1, bits<2> opcod2, bit op6, bit op4, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: VFPAI<oops, iops, VFPBinaryFrm, itin, opc, asm, pattern> {
let Inst{27-23} = opcod1;
let Inst{21-20} = opcod2;
let Inst{11-9} = 0b101;
let Inst{8} = 0; // Single precision
let Inst{6} = op6;
let Inst{4} = op4;
}
// 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 iops, InstrItinClass itin, string opc, string asm,
list<dag> pattern>
: ASbI<opcod1, opcod2, op6, op4, oops, iops, itin, opc, asm, pattern> {
list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
}
// VFP conversion instructions
class AVConv1I<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
dag oops, dag iops, InstrItinClass itin, string opc, string asm,
list<dag> pattern>
: VFPAI<oops, iops, VFPConv1Frm, itin, opc, asm, pattern> {
let Inst{27-23} = opcod1;
let Inst{21-20} = opcod2;
let Inst{19-16} = opcod3;
let Inst{11-8} = opcod4;
let Inst{6} = 1;
let Inst{4} = 0;
}
// VFP conversion between floating-point and fixed-point
class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5,
dag oops, dag iops, InstrItinClass itin, string opc, string asm,
list<dag> pattern>
: AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> {
// size (fixed-point number): sx == 0 ? 16 : 32
let Inst{7} = op5; // sx
}
// VFP conversion instructions, if no NEON
class AVConv1In<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3, bits<4> opcod4,
dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: AVConv1I<opcod1, opcod2, opcod3, opcod4, oops, iops, itin, opc, asm,
pattern> {
list<Predicate> Predicates = [HasVFP2,DontUseNEONForFP];
}
class AVConvXI<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops, Format f,
InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: VFPAI<oops, iops, f, itin, opc, asm, pattern> {
let Inst{27-20} = opcod1;
let Inst{11-8} = opcod2;
let Inst{4} = 1;
}
class AVConv2I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: AVConvXI<opcod1, opcod2, oops, iops, VFPConv2Frm, itin, opc, asm, pattern>;
class AVConv3I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: AVConvXI<opcod1, opcod2, oops, iops, VFPConv3Frm, itin, opc, asm, pattern>;
class AVConv4I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: AVConvXI<opcod1, opcod2, oops, iops, VFPConv4Frm, itin, opc, asm, pattern>;
class AVConv5I<bits<8> opcod1, bits<4> opcod2, dag oops, dag iops,
InstrItinClass itin, string opc, string asm, list<dag> pattern>
: AVConvXI<opcod1, opcod2, oops, iops, VFPConv5Frm, itin, opc, asm, pattern>;
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// ARM NEON Instruction templates.
//
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> {
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];
}
// 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> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let AsmString = !strconcat(opc, "${p}", "\t", asm);
let Pattern = pattern;
list<Predicate> Predicates = [HasNEON];
}
class NLdSt<bit op23, bits<2> op21_20, bits<4> op11_8, bits<4> op7_4,
dag oops, dag iops, InstrItinClass itin,
string opc, string dt, string asm, string cstr, list<dag> pattern>
: NeonI<oops, iops, AddrMode6, IndexModeNone, NLdStFrm, itin, opc, dt, asm,
cstr, pattern> {
let Inst{31-24} = 0b11110100;
let Inst{23} = op23;
let Inst{21-20} = op21_20;
let Inst{11-8} = op11_8;
let Inst{7-4} = op7_4;
}
class PseudoNLdSt<dag oops, dag iops, InstrItinClass itin, string cstr>
: InstARM<AddrMode6, Size4Bytes, IndexModeNone, Pseudo, NeonDomain, cstr,
itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
list<Predicate> Predicates = [HasNEON];
}
class PseudoNeonI<dag oops, dag iops, InstrItinClass itin, string cstr,
list<dag> pattern>
: InstARM<AddrModeNone, Size4Bytes, IndexModeNone, Pseudo, NeonDomain, cstr,
itin> {
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));
let Pattern = pattern;
list<Predicate> Predicates = [HasNEON];
}
class NDataI<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string dt, string asm, string cstr, list<dag> pattern>
: NeonI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, dt, asm, cstr,
pattern> {
let Inst{31-25} = 0b1111001;
}
class NDataXI<dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: NeonXI<oops, iops, AddrModeNone, IndexModeNone, f, itin, opc, asm,
cstr, pattern> {
let Inst{31-25} = 0b1111001;
}
// NEON "one register and a modified immediate" format.
class N1ModImm<bit op23, bits<3> op21_19, bits<4> op11_8, bit op7, bit op6,
bit op5, bit op4,
dag oops, dag iops, InstrItinClass itin,
string opc, string dt, string asm, string cstr,
list<dag> pattern>
: NDataI<oops, iops, N1RegModImmFrm, itin, opc, dt, asm, cstr, pattern> {
let Inst{23} = op23;
let Inst{21-19} = op21_19;
let Inst{11-8} = op11_8;
let Inst{7} = op7;
let Inst{6} = op6;
let Inst{5} = op5;
let Inst{4} = op4;
// Instruction operands.
bits<5> Vd;
bits<13> SIMM;
let Inst{15-12} = Vd{3-0};
let Inst{22} = Vd{4};
let Inst{24} = SIMM{7};
let Inst{18-16} = SIMM{6-4};
let Inst{3-0} = SIMM{3-0};
}
// NEON 2 vector register format.
class N2V<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
bits<5> op11_7, bit op6, bit op4,
dag oops, dag iops, InstrItinClass itin,
string opc, string dt, string asm, string cstr, list<dag> pattern>
: NDataI<oops, iops, N2RegFrm, itin, opc, dt, asm, cstr, pattern> {
let Inst{24-23} = op24_23;
let Inst{21-20} = op21_20;
let Inst{19-18} = op19_18;
let Inst{17-16} = op17_16;
let Inst{11-7} = op11_7;
let Inst{6} = op6;
let Inst{4} = op4;
// Instruction operands.
bits<5> Vd;
bits<5> Vm;
let Inst{15-12} = Vd{3-0};
let Inst{22} = Vd{4};
let Inst{3-0} = Vm{3-0};
let Inst{5} = Vm{4};
}
// 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,
dag oops, dag iops, InstrItinClass itin,
string opc, string asm, string cstr, list<dag> pattern>
: NDataXI<oops, iops, N2RegFrm, itin, opc, asm, cstr, pattern> {
let Inst{24-23} = op24_23;
let Inst{21-20} = op21_20;
let Inst{19-18} = op19_18;
let Inst{17-16} = op17_16;
let Inst{11-7} = op11_7;
let Inst{6} = op6;
let Inst{4} = op4;
// Instruction operands.
bits<5> Vd;
bits<5> Vm;
let Inst{15-12} = Vd{3-0};
let Inst{22} = Vd{4};
let Inst{3-0} = Vm{3-0};
let Inst{5} = Vm{4};
}
// NEON 2 vector register with immediate.
class N2VImm<bit op24, bit op23, bits<4> op11_8, bit op7, bit op6, bit op4,
dag oops, dag iops, Format f, InstrItinClass itin,
string opc, string dt, string asm, string cstr, list<dag> pattern>
: NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
let Inst{24} = op24;
let Inst{23} = op23;
let Inst{11-8} = op11_8;
let Inst{7} = op7;
let Inst{6} = op6;
let Inst{4} = op4;
// Instruction operands.
bits<5> Vd;
bits<5> Vm;
bits<6> SIMM;
let Inst{15-12} = Vd{3-0};
let Inst{22} = Vd{4};
let Inst{3-0} = Vm{3-0};
let Inst{5} = Vm{4};
let Inst{21-16} = SIMM{5-0};
}
// NEON 3 vector register format.
class N3V<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, list<dag> pattern>
: NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
let Inst{24} = op24;
let Inst{23} = op23;
let Inst{21-20} = op21_20;
let Inst{11-8} = op11_8;
let Inst{6} = op6;
let Inst{4} = op4;
// Instruction operands.
bits<5> Vd;
bits<5> Vn;
bits<5> Vm;
let Inst{15-12} = Vd{3-0};
let Inst{22} = Vd{4};
let Inst{19-16} = Vn{3-0};
let Inst{7} = Vn{4};
let Inst{3-0} = Vm{3-0};
let Inst{5} = Vm{4};
}
// Same as N3V except it doesn't have a data type suffix.
class N3VX<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 asm, string cstr, list<dag> pattern>
: NDataXI<oops, iops, f, itin, opc, asm, cstr, pattern> {
let Inst{24} = op24;
let Inst{23} = op23;
let Inst{21-20} = op21_20;
let Inst{11-8} = op11_8;
let Inst{6} = op6;
let Inst{4} = op4;
// Instruction operands.
bits<5> Vd;
bits<5> Vn;
bits<5> Vm;
let Inst{15-12} = Vd{3-0};
let Inst{22} = Vd{4};
let Inst{19-16} = Vn{3-0};
let Inst{7} = Vn{4};
let Inst{3-0} = Vm{3-0};
let Inst{5} = Vm{4};
}
// NEON VMOVs between scalar and core registers.
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,
"", itin> {
let Inst{27-20} = opcod1;
let Inst{11-8} = opcod2;
let Inst{6-5} = opcod3;
let Inst{4} = 1;
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];
bits<5> V;
bits<4> R;
bits<4> p;
bits<4> lane;
let Inst{31-28} = p{3-0};
let Inst{7} = V{4};
let Inst{19-16} = V{3-0};
let Inst{15-12} = R{3-0};
}
class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
dag oops, dag iops, InstrItinClass itin,
string opc, string dt, string asm, list<dag> pattern>
: NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NGetLnFrm, itin,
opc, dt, asm, pattern>;
class NVSetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
dag oops, dag iops, InstrItinClass itin,
string opc, string dt, string asm, list<dag> pattern>
: NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NSetLnFrm, itin,
opc, dt, asm, pattern>;
class NVDup<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
dag oops, dag iops, InstrItinClass itin,
string opc, string dt, string asm, list<dag> pattern>
: NVLaneOp<opcod1, opcod2, opcod3, oops, iops, NDupFrm, itin,
opc, dt, asm, pattern>;
// Vector Duplicate Lane (from scalar to all elements)
class NVDupLane<bits<4> op19_16, bit op6, dag oops, dag iops,
InstrItinClass itin, string opc, string dt, string asm,
list<dag> pattern>
: NDataI<oops, iops, NVDupLnFrm, itin, opc, dt, asm, "", pattern> {
let Inst{24-23} = 0b11;
let Inst{21-20} = 0b11;
let Inst{19-16} = op19_16;
let Inst{11-7} = 0b11000;
let Inst{6} = op6;
let Inst{4} = 0;
bits<5> Vd;
bits<5> Vm;
bits<4> lane;
let Inst{22} = Vd{4};
let Inst{15-12} = Vd{3-0};
let Inst{5} = Vm{4};
let Inst{3-0} = Vm{3-0};
}
// NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON
// for single-precision FP.
class NEONFPPat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [HasNEON,UseNEONForFP];
}