-//===- ARMInstrFormats.td - ARM Instruction Formats ----------*- tablegen -*-=//
+//===-- ARMInstrFormats.td - ARM Instruction Formats -------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
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 ParserMatchClass = MSRMaskOperand;
}
+def BankedRegOperand : AsmOperandClass {
+ let Name = "BankedReg";
+ let ParserMethod = "parseBankedRegOperand";
+}
+def banked_reg : Operand<i32> {
+ let PrintMethod = "printBankedRegOperand";
+ let DecoderMethod = "DecodeBankedReg";
+ let ParserMatchClass = BankedRegOperand;
+}
+
// Shift Right Immediate - A shift right immediate is encoded differently from
// other shift immediates. The imm6 field is encoded like so:
//
// 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;
}
//===----------------------------------------------------------------------===//
: 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 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, int sz, IndexMode im,
// 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>
+class AsmPseudoInst<string asm, dag iops, dag oops = (outs)>
: InstTemplate<AddrModeNone, 0, IndexModeNone, Pseudo, GenericDomain,
"", NoItinerary> {
- let OutOperandList = (outs);
+ let OutOperandList = oops;
let InOperandList = iops;
let Pattern = [];
let isCodeGenOnly = 0; // So we get asm matcher for it.
let isPseudo = 1;
}
-class ARMAsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
- Requires<[IsARM]>;
-class tAsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
- Requires<[IsThumb]>;
-class t2AsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
- Requires<[IsThumb2]>;
-class VFP2AsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
- Requires<[HasVFP2]>;
-class NEONAsmPseudo<string asm, dag iops> : AsmPseudoInst<asm, iops>,
- Requires<[HasNEON]>;
+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>
string asm, list<dag> pattern>
: 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, 4, IndexModeNone, f, 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, 4, IndexModeNone, LdStExFrm, itin,
opc, asm, "", pattern> {
let Inst{20} = 1;
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, 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, $addr", pattern> {
bits<4> 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,
let Inst{7-4} = 0b0111;
let Inst{9-8} = 0b00;
let Inst{27-20} = opcod;
+
+ let Unpredictable{9-8} = 0b11;
}
// Misc Arithmetic instructions.
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";
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];
}
-
+class VFPPat<dag pattern, dag result> : Pat<pattern, result> {
+ list<Predicate> Predicates = [HasVFP2];
+}
+class VFPNoNEONPat<dag pattern, dag result> : Pat<pattern, result> {
+ list<Predicate> Predicates = [HasVFP2, DontUseNEONForFP];
+}
//===----------------------------------------------------------------------===//
// Thumb Instruction Format Definitions.
//
: Thumb2XI<oops, iops, AddrModeNone, 0, itin, asm, "", pattern>;
// Move to/from coprocessor instructions
-class T2Cop<bits<4> opc, dag oops, dag iops, string asm, list<dag> pattern>
- : T2XI <oops, iops, NoItinerary, asm, pattern>, Requires<[IsThumb2]> {
+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;
}
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;
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;
}
// 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, 4, im,
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, 4, im,
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
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,
dag oops, dag iops, InstrItinClass itin,
string opc, string dt, string asm, string cstr, list<dag> pattern>
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, list<dag> pattern>
+ : NeonInp<oops, iops, AddrModeNone, IndexModeNone, N2RegFrm, itin,
+ OpcodeStr, Dt, "$Vd, $Vm", "", pattern> {
+ bits<5> Vd;
+ bits<5> Vm;
+
+ // Encode instruction operands
+ let Inst{22} = Vd{4};
+ let Inst{15-12} = Vd{3-0};
+ let Inst{5} = Vm{4};
+ let Inst{3-0} = Vm{3-0};
+
+ // Encode constant bits
+ let Inst{27-23} = 0b00111;
+ let Inst{21-20} = 0b11;
+ let Inst{19-18} = op19_18;
+ let Inst{17-16} = op17_16;
+ let Inst{11} = 0;
+ let Inst{10-8} = op10_8;
+ let Inst{7} = op7;
+ let Inst{6} = op6;
+ let Inst{4} = 0;
+
+ let DecoderNamespace = "NEON";
+}
+
// Same as N2V except it doesn't have a datatype suffix.
class N2VX<bits<2> op24_23, bits<2> op21_20, bits<2> op19_18, bits<2> op17_16,
bits<5> op11_7, bit op6, bit op4,
string opc, string dt, string asm, string cstr, list<dag> pattern>
: N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
-
// Instruction operands.
bits<5> Vd;
bits<5> Vn;
let Inst{5} = Vm{4};
}
+class N3Vnp<bits<5> op27_23, bits<2> op21_20, bits<4> op11_8, bit op6,
+ bit op4, dag oops, dag iops,Format f, InstrItinClass itin,
+ string OpcodeStr, string Dt, list<dag> pattern>
+ : NeonInp<oops, iops, AddrModeNone, IndexModeNone, f, itin, OpcodeStr,
+ Dt, "$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,
// VFP/NEON Instruction aliases for type suffices.
class VFPDataTypeInstAlias<string opc, string dt, string asm, dag Result> :
- InstAlias<!strconcat(opc, dt, asm), Result>;
-multiclass VFPDT8InstAlias<string opc, string asm, dag Result> {
- def _8 : VFPDataTypeInstAlias<opc, ".8", asm, Result>;
- def I8 : VFPDataTypeInstAlias<opc, ".i8", asm, Result>;
- def S8 : VFPDataTypeInstAlias<opc, ".s8", asm, Result>;
- def U8 : VFPDataTypeInstAlias<opc, ".u8", asm, Result>;
- def F8 : VFPDataTypeInstAlias<opc, ".p8", asm, Result>;
-}
-multiclass VFPDT16InstAlias<string opc, string asm, dag Result> {
- def _16 : VFPDataTypeInstAlias<opc, ".16", asm, Result>;
- def I16 : VFPDataTypeInstAlias<opc, ".i16", asm, Result>;
- def S16 : VFPDataTypeInstAlias<opc, ".s16", asm, Result>;
- def U16 : VFPDataTypeInstAlias<opc, ".u16", asm, Result>;
- def F16 : VFPDataTypeInstAlias<opc, ".p16", asm, Result>;
-}
-multiclass VFPDT32InstAlias<string opc, string asm, dag Result> {
- def _32 : VFPDataTypeInstAlias<opc, ".32", asm, Result>;
- def I32 : VFPDataTypeInstAlias<opc, ".i32", asm, Result>;
- def S32 : VFPDataTypeInstAlias<opc, ".s32", asm, Result>;
- def U32 : VFPDataTypeInstAlias<opc, ".u32", asm, Result>;
- def F32 : VFPDataTypeInstAlias<opc, ".f32", asm, Result>;
- def F : VFPDataTypeInstAlias<opc, ".f", asm, Result>;
-}
-multiclass VFPDT64InstAlias<string opc, string asm, dag Result> {
- def _64 : VFPDataTypeInstAlias<opc, ".64", asm, Result>;
- def I64 : VFPDataTypeInstAlias<opc, ".i64", asm, Result>;
- def S64 : VFPDataTypeInstAlias<opc, ".s64", asm, Result>;
- def U64 : VFPDataTypeInstAlias<opc, ".u64", asm, Result>;
- def F64 : VFPDataTypeInstAlias<opc, ".f64", asm, Result>;
- def D : VFPDataTypeInstAlias<opc, ".d", asm, Result>;
-}
+ InstAlias<!strconcat(opc, dt, "\t", asm), Result>, Requires<[HasVFP2]>;
+
multiclass VFPDTAnyInstAlias<string opc, string asm, dag Result> {
- defm : VFPDT8InstAlias<opc, asm, Result>;
- defm : VFPDT16InstAlias<opc, asm, Result>;
- defm : VFPDT32InstAlias<opc, asm, Result>;
- defm : VFPDT64InstAlias<opc, asm, 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