| //===-- ARMInstrThumb2.td - Thumb2 support for ARM ---------*- tablegen -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file describes the Thumb2 instruction set. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // IT block predicate field |
| def it_pred_asmoperand : AsmOperandClass { |
| let Name = "ITCondCode"; |
| let ParserMethod = "parseITCondCode"; |
| } |
| def it_pred : Operand<i32> { |
| let PrintMethod = "printMandatoryPredicateOperand"; |
| let ParserMatchClass = it_pred_asmoperand; |
| } |
| |
| // IT block condition mask |
| def it_mask_asmoperand : AsmOperandClass { let Name = "ITMask"; } |
| def it_mask : Operand<i32> { |
| let PrintMethod = "printThumbITMask"; |
| let ParserMatchClass = it_mask_asmoperand; |
| } |
| |
| // t2_shift_imm: An integer that encodes a shift amount and the type of shift |
| // (asr or lsl). The 6-bit immediate encodes as: |
| // {5} 0 ==> lsl |
| // 1 asr |
| // {4-0} imm5 shift amount. |
| // asr #32 not allowed |
| def t2_shift_imm : Operand<i32> { |
| let PrintMethod = "printShiftImmOperand"; |
| let ParserMatchClass = ShifterImmAsmOperand; |
| let DecoderMethod = "DecodeT2ShifterImmOperand"; |
| } |
| |
| // Shifted operands. No register controlled shifts for Thumb2. |
| // Note: We do not support rrx shifted operands yet. |
| def t2_so_reg : Operand<i32>, // reg imm |
| ComplexPattern<i32, 2, "SelectT2ShifterOperandReg", |
| [shl,srl,sra,rotr]> { |
| let EncoderMethod = "getT2SORegOpValue"; |
| let PrintMethod = "printT2SOOperand"; |
| let DecoderMethod = "DecodeSORegImmOperand"; |
| let ParserMatchClass = ShiftedImmAsmOperand; |
| let MIOperandInfo = (ops rGPR, i32imm); |
| } |
| |
| // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value |
| def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{ |
| return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32); |
| }]>; |
| |
| // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value |
| def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{ |
| return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32); |
| }]>; |
| |
| // so_imm_notSext_XFORM - Return a so_imm value packed into the format |
| // described for so_imm_notSext def below, with sign extension from 16 |
| // bits. |
| def t2_so_imm_notSext16_XFORM : SDNodeXForm<imm, [{ |
| APInt apIntN = N->getAPIntValue(); |
| unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue(); |
| return CurDAG->getTargetConstant(~N16bitSignExt, MVT::i32); |
| }]>; |
| |
| // t2_so_imm - Match a 32-bit immediate operand, which is an |
| // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit |
| // immediate splatted into multiple bytes of the word. |
| def t2_so_imm_asmoperand : ImmAsmOperand { let Name = "T2SOImm"; } |
| def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{ |
| return ARM_AM::getT2SOImmVal(Imm) != -1; |
| }]> { |
| let ParserMatchClass = t2_so_imm_asmoperand; |
| let EncoderMethod = "getT2SOImmOpValue"; |
| let DecoderMethod = "DecodeT2SOImm"; |
| } |
| |
| // t2_so_imm_not - Match an immediate that is a complement |
| // of a t2_so_imm. |
| // Note: this pattern doesn't require an encoder method and such, as it's |
| // only used on aliases (Pat<> and InstAlias<>). The actual encoding |
| // is handled by the destination instructions, which use t2_so_imm. |
| def t2_so_imm_not_asmoperand : AsmOperandClass { let Name = "T2SOImmNot"; } |
| def t2_so_imm_not : Operand<i32>, PatLeaf<(imm), [{ |
| return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1; |
| }], t2_so_imm_not_XFORM> { |
| let ParserMatchClass = t2_so_imm_not_asmoperand; |
| } |
| |
| // t2_so_imm_notSext - match an immediate that is a complement of a t2_so_imm |
| // if the upper 16 bits are zero. |
| def t2_so_imm_notSext : Operand<i32>, PatLeaf<(imm), [{ |
| APInt apIntN = N->getAPIntValue(); |
| if (!apIntN.isIntN(16)) return false; |
| unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue(); |
| return ARM_AM::getT2SOImmVal(~N16bitSignExt) != -1; |
| }], t2_so_imm_notSext16_XFORM> { |
| let ParserMatchClass = t2_so_imm_not_asmoperand; |
| } |
| |
| // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm. |
| def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; } |
| def t2_so_imm_neg : Operand<i32>, PatLeaf<(imm), [{ |
| int64_t Value = -(int)N->getZExtValue(); |
| return Value && ARM_AM::getT2SOImmVal(Value) != -1; |
| }], t2_so_imm_neg_XFORM> { |
| let ParserMatchClass = t2_so_imm_neg_asmoperand; |
| } |
| |
| /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095]. |
| def imm0_4095_asmoperand: ImmAsmOperand { let Name = "Imm0_4095"; } |
| def imm0_4095 : Operand<i32>, ImmLeaf<i32, [{ |
| return Imm >= 0 && Imm < 4096; |
| }]> { |
| let ParserMatchClass = imm0_4095_asmoperand; |
| } |
| |
| def imm0_4095_neg_asmoperand: AsmOperandClass { let Name = "Imm0_4095Neg"; } |
| def imm0_4095_neg : Operand<i32>, PatLeaf<(i32 imm), [{ |
| return (uint32_t)(-N->getZExtValue()) < 4096; |
| }], imm_neg_XFORM> { |
| let ParserMatchClass = imm0_4095_neg_asmoperand; |
| } |
| |
| def imm1_255_neg : PatLeaf<(i32 imm), [{ |
| uint32_t Val = -N->getZExtValue(); |
| return (Val > 0 && Val < 255); |
| }], imm_neg_XFORM>; |
| |
| def imm0_255_not : PatLeaf<(i32 imm), [{ |
| return (uint32_t)(~N->getZExtValue()) < 255; |
| }], imm_comp_XFORM>; |
| |
| def lo5AllOne : PatLeaf<(i32 imm), [{ |
| // Returns true if all low 5-bits are 1. |
| return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL; |
| }]>; |
| |
| // Define Thumb2 specific addressing modes. |
| |
| // t2addrmode_imm12 := reg + imm12 |
| def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";} |
| def t2addrmode_imm12 : Operand<i32>, |
| ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> { |
| let PrintMethod = "printAddrModeImm12Operand"; |
| let EncoderMethod = "getAddrModeImm12OpValue"; |
| let DecoderMethod = "DecodeT2AddrModeImm12"; |
| let ParserMatchClass = t2addrmode_imm12_asmoperand; |
| let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm); |
| } |
| |
| // t2ldrlabel := imm12 |
| def t2ldrlabel : Operand<i32> { |
| let EncoderMethod = "getAddrModeImm12OpValue"; |
| let PrintMethod = "printThumbLdrLabelOperand"; |
| } |
| |
| def t2ldr_pcrel_imm12_asmoperand : AsmOperandClass {let Name = "MemPCRelImm12";} |
| def t2ldr_pcrel_imm12 : Operand<i32> { |
| let ParserMatchClass = t2ldr_pcrel_imm12_asmoperand; |
| // used for assembler pseudo instruction and maps to t2ldrlabel, so |
| // doesn't need encoder or print methods of its own. |
| } |
| |
| // ADR instruction labels. |
| def t2adrlabel : Operand<i32> { |
| let EncoderMethod = "getT2AdrLabelOpValue"; |
| let PrintMethod = "printAdrLabelOperand"; |
| } |
| |
| |
| // t2addrmode_posimm8 := reg + imm8 |
| def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";} |
| def t2addrmode_posimm8 : Operand<i32> { |
| let PrintMethod = "printT2AddrModeImm8Operand"; |
| let EncoderMethod = "getT2AddrModeImm8OpValue"; |
| let DecoderMethod = "DecodeT2AddrModeImm8"; |
| let ParserMatchClass = MemPosImm8OffsetAsmOperand; |
| let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm); |
| } |
| |
| // t2addrmode_negimm8 := reg - imm8 |
| def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";} |
| def t2addrmode_negimm8 : Operand<i32>, |
| ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> { |
| let PrintMethod = "printT2AddrModeImm8Operand"; |
| let EncoderMethod = "getT2AddrModeImm8OpValue"; |
| let DecoderMethod = "DecodeT2AddrModeImm8"; |
| let ParserMatchClass = MemNegImm8OffsetAsmOperand; |
| let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm); |
| } |
| |
| // t2addrmode_imm8 := reg +/- imm8 |
| def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; } |
| def t2addrmode_imm8 : Operand<i32>, |
| ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> { |
| let PrintMethod = "printT2AddrModeImm8Operand"; |
| let EncoderMethod = "getT2AddrModeImm8OpValue"; |
| let DecoderMethod = "DecodeT2AddrModeImm8"; |
| let ParserMatchClass = MemImm8OffsetAsmOperand; |
| let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm); |
| } |
| |
| def t2am_imm8_offset : Operand<i32>, |
| ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset", |
| [], [SDNPWantRoot]> { |
| let PrintMethod = "printT2AddrModeImm8OffsetOperand"; |
| let EncoderMethod = "getT2AddrModeImm8OffsetOpValue"; |
| let DecoderMethod = "DecodeT2Imm8"; |
| } |
| |
| // t2addrmode_imm8s4 := reg +/- (imm8 << 2) |
| def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";} |
| def t2addrmode_imm8s4 : Operand<i32> { |
| let PrintMethod = "printT2AddrModeImm8s4Operand"; |
| let EncoderMethod = "getT2AddrModeImm8s4OpValue"; |
| let DecoderMethod = "DecodeT2AddrModeImm8s4"; |
| let ParserMatchClass = MemImm8s4OffsetAsmOperand; |
| let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm); |
| } |
| |
| def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; } |
| def t2am_imm8s4_offset : Operand<i32> { |
| let PrintMethod = "printT2AddrModeImm8s4OffsetOperand"; |
| let EncoderMethod = "getT2Imm8s4OpValue"; |
| let DecoderMethod = "DecodeT2Imm8S4"; |
| } |
| |
| // t2addrmode_imm0_1020s4 := reg + (imm8 << 2) |
| def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass { |
| let Name = "MemImm0_1020s4Offset"; |
| } |
| def t2addrmode_imm0_1020s4 : Operand<i32> { |
| let PrintMethod = "printT2AddrModeImm0_1020s4Operand"; |
| let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue"; |
| let DecoderMethod = "DecodeT2AddrModeImm0_1020s4"; |
| let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand; |
| let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm); |
| } |
| |
| // t2addrmode_so_reg := reg + (reg << imm2) |
| def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";} |
| def t2addrmode_so_reg : Operand<i32>, |
| ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> { |
| let PrintMethod = "printT2AddrModeSoRegOperand"; |
| let EncoderMethod = "getT2AddrModeSORegOpValue"; |
| let DecoderMethod = "DecodeT2AddrModeSOReg"; |
| let ParserMatchClass = t2addrmode_so_reg_asmoperand; |
| let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm); |
| } |
| |
| // Addresses for the TBB/TBH instructions. |
| def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; } |
| def addrmode_tbb : Operand<i32> { |
| let PrintMethod = "printAddrModeTBB"; |
| let ParserMatchClass = addrmode_tbb_asmoperand; |
| let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm); |
| } |
| def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; } |
| def addrmode_tbh : Operand<i32> { |
| let PrintMethod = "printAddrModeTBH"; |
| let ParserMatchClass = addrmode_tbh_asmoperand; |
| let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Multiclass helpers... |
| // |
| |
| |
| class T2OneRegImm<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<12> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{26} = imm{11}; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{7-0} = imm{7-0}; |
| } |
| |
| |
| class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2sI<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<12> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{26} = imm{11}; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{7-0} = imm{7-0}; |
| } |
| |
| class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rn; |
| bits<12> imm; |
| |
| let Inst{19-16} = Rn; |
| let Inst{26} = imm{11}; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{7-0} = imm{7-0}; |
| } |
| |
| |
| class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<12> ShiftedRm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{3-0} = ShiftedRm{3-0}; |
| let Inst{5-4} = ShiftedRm{6-5}; |
| let Inst{14-12} = ShiftedRm{11-9}; |
| let Inst{7-6} = ShiftedRm{8-7}; |
| } |
| |
| class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2sI<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<12> ShiftedRm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{3-0} = ShiftedRm{3-0}; |
| let Inst{5-4} = ShiftedRm{6-5}; |
| let Inst{14-12} = ShiftedRm{11-9}; |
| let Inst{7-6} = ShiftedRm{8-7}; |
| } |
| |
| class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rn; |
| bits<12> ShiftedRm; |
| |
| let Inst{19-16} = Rn; |
| let Inst{3-0} = ShiftedRm{3-0}; |
| let Inst{5-4} = ShiftedRm{6-5}; |
| let Inst{14-12} = ShiftedRm{11-9}; |
| let Inst{7-6} = ShiftedRm{8-7}; |
| } |
| |
| class T2TwoReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{3-0} = Rm; |
| } |
| |
| class T2sTwoReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2sI<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{3-0} = Rm; |
| } |
| |
| class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rn; |
| bits<4> Rm; |
| |
| let Inst{19-16} = Rn; |
| let Inst{3-0} = Rm; |
| } |
| |
| |
| class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<12> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = Rn; |
| let Inst{26} = imm{11}; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{7-0} = imm{7-0}; |
| } |
| |
| class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2sI<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<12> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = Rn; |
| let Inst{26} = imm{11}; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{7-0} = imm{7-0}; |
| } |
| |
| class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rm; |
| bits<5> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{3-0} = Rm; |
| let Inst{14-12} = imm{4-2}; |
| let Inst{7-6} = imm{1-0}; |
| } |
| |
| class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2sI<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rm; |
| bits<5> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{3-0} = Rm; |
| let Inst{14-12} = imm{4-2}; |
| let Inst{7-6} = imm{1-0}; |
| } |
| |
| class T2ThreeReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<4> Rm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = Rn; |
| let Inst{3-0} = Rm; |
| } |
| |
| class T2sThreeReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2sI<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<4> Rm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = Rn; |
| let Inst{3-0} = Rm; |
| } |
| |
| class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<12> ShiftedRm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = Rn; |
| let Inst{3-0} = ShiftedRm{3-0}; |
| let Inst{5-4} = ShiftedRm{6-5}; |
| let Inst{14-12} = ShiftedRm{11-9}; |
| let Inst{7-6} = ShiftedRm{8-7}; |
| } |
| |
| class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2sI<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<12> ShiftedRm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = Rn; |
| let Inst{3-0} = ShiftedRm{3-0}; |
| let Inst{5-4} = ShiftedRm{6-5}; |
| let Inst{14-12} = ShiftedRm{11-9}; |
| let Inst{7-6} = ShiftedRm{8-7}; |
| } |
| |
| class T2FourReg<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<4> Rm; |
| bits<4> Ra; |
| |
| let Inst{19-16} = Rn; |
| let Inst{15-12} = Ra; |
| let Inst{11-8} = Rd; |
| let Inst{3-0} = Rm; |
| } |
| |
| class T2MulLong<bits<3> opc22_20, bits<4> opc7_4, |
| dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> RdLo; |
| bits<4> RdHi; |
| bits<4> Rn; |
| bits<4> Rm; |
| |
| let Inst{31-23} = 0b111110111; |
| let Inst{22-20} = opc22_20; |
| let Inst{19-16} = Rn; |
| let Inst{15-12} = RdLo; |
| let Inst{11-8} = RdHi; |
| let Inst{7-4} = opc7_4; |
| let Inst{3-0} = Rm; |
| } |
| class T2MlaLong<bits<3> opc22_20, bits<4> opc7_4, |
| dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> RdLo; |
| bits<4> RdHi; |
| bits<4> Rn; |
| bits<4> Rm; |
| |
| let Inst{31-23} = 0b111110111; |
| let Inst{22-20} = opc22_20; |
| let Inst{19-16} = Rn; |
| let Inst{15-12} = RdLo; |
| let Inst{11-8} = RdHi; |
| let Inst{7-4} = opc7_4; |
| let Inst{3-0} = Rm; |
| } |
| |
| |
| /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a |
| /// binary operation that produces a value. These are predicable and can be |
| /// changed to modify CPSR. |
| multiclass T2I_bin_irs<bits<4> opcod, string opc, |
| InstrItinClass iii, InstrItinClass iir, InstrItinClass iis, |
| PatFrag opnode, bit Commutable = 0, |
| string wide = ""> { |
| // shifted imm |
| def ri : T2sTwoRegImm< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii, |
| opc, "\t$Rd, $Rn, $imm", |
| [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24-21} = opcod; |
| let Inst{15} = 0; |
| } |
| // register |
| def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir, |
| opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"), |
| [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> { |
| let isCommutable = Commutable; |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| let Inst{14-12} = 0b000; // imm3 |
| let Inst{7-6} = 0b00; // imm2 |
| let Inst{5-4} = 0b00; // type |
| } |
| // shifted register |
| def rs : T2sTwoRegShiftedReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis, |
| opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"), |
| [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| } |
| // Assembly aliases for optional destination operand when it's the same |
| // as the source operand. |
| def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"), |
| (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, |
| t2_so_imm:$imm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"), |
| (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, |
| rGPR:$Rm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"), |
| (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, |
| t2_so_reg:$shift, pred:$p, |
| cc_out:$s)>; |
| } |
| |
| /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need |
| // the ".w" suffix to indicate that they are wide. |
| multiclass T2I_bin_w_irs<bits<4> opcod, string opc, |
| InstrItinClass iii, InstrItinClass iir, InstrItinClass iis, |
| PatFrag opnode, bit Commutable = 0> : |
| T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w"> { |
| // Assembler aliases w/ the ".w" suffix. |
| def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"), |
| (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, |
| cc_out:$s)>; |
| // Assembler aliases w/o the ".w" suffix. |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"), |
| (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"), |
| (!cast<Instruction>(NAME#"rs") rGPR:$Rd, rGPR:$Rn, t2_so_reg:$shift, |
| pred:$p, cc_out:$s)>; |
| |
| // and with the optional destination operand, too. |
| def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"), |
| (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, |
| pred:$p, cc_out:$s)>; |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"), |
| (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"), |
| (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$shift, |
| pred:$p, cc_out:$s)>; |
| } |
| |
| /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are |
| /// reversed. The 'rr' form is only defined for the disassembler; for codegen |
| /// it is equivalent to the T2I_bin_irs counterpart. |
| multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> { |
| // shifted imm |
| def ri : T2sTwoRegImm< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi, |
| opc, ".w\t$Rd, $Rn, $imm", |
| [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24-21} = opcod; |
| let Inst{15} = 0; |
| } |
| // register |
| def rr : T2sThreeReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr, |
| opc, "\t$Rd, $Rn, $Rm", |
| [/* For disassembly only; pattern left blank */]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| let Inst{14-12} = 0b000; // imm3 |
| let Inst{7-6} = 0b00; // imm2 |
| let Inst{5-4} = 0b00; // type |
| } |
| // shifted register |
| def rs : T2sTwoRegShiftedReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), |
| IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm", |
| [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| } |
| } |
| |
| /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the |
| /// instruction modifies the CPSR register. |
| /// |
| /// These opcodes will be converted to the real non-S opcodes by |
| /// AdjustInstrPostInstrSelection after giving then an optional CPSR operand. |
| let hasPostISelHook = 1, Defs = [CPSR] in { |
| multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir, |
| InstrItinClass iis, PatFrag opnode, |
| bit Commutable = 0> { |
| // shifted imm |
| def ri : t2PseudoInst<(outs rGPR:$Rd), |
| (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p), |
| 4, iii, |
| [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn, |
| t2_so_imm:$imm))]>; |
| // register |
| def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p), |
| 4, iir, |
| [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn, |
| rGPR:$Rm))]> { |
| let isCommutable = Commutable; |
| } |
| // shifted register |
| def rs : t2PseudoInst<(outs rGPR:$Rd), |
| (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p), |
| 4, iis, |
| [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn, |
| t2_so_reg:$ShiftedRm))]>; |
| } |
| } |
| |
| /// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG |
| /// operands are reversed. |
| let hasPostISelHook = 1, Defs = [CPSR] in { |
| multiclass T2I_rbin_s_is<PatFrag opnode> { |
| // shifted imm |
| def ri : t2PseudoInst<(outs rGPR:$Rd), |
| (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p), |
| 4, IIC_iALUi, |
| [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm, |
| rGPR:$Rn))]>; |
| // shifted register |
| def rs : t2PseudoInst<(outs rGPR:$Rd), |
| (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p), |
| 4, IIC_iALUsi, |
| [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm, |
| rGPR:$Rn))]>; |
| } |
| } |
| |
| /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg}) |
| /// patterns for a binary operation that produces a value. |
| multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode, |
| bit Commutable = 0> { |
| // shifted imm |
| // The register-immediate version is re-materializable. This is useful |
| // in particular for taking the address of a local. |
| let isReMaterializable = 1 in { |
| def ri : T2sTwoRegImm< |
| (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi, |
| opc, ".w\t$Rd, $Rn, $imm", |
| [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24} = 1; |
| let Inst{23-21} = op23_21; |
| let Inst{15} = 0; |
| } |
| } |
| // 12-bit imm |
| def ri12 : T2I< |
| (outs GPRnopc:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi, |
| !strconcat(opc, "w"), "\t$Rd, $Rn, $imm", |
| [(set GPRnopc:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<12> imm; |
| let Inst{31-27} = 0b11110; |
| let Inst{26} = imm{11}; |
| let Inst{25-24} = 0b10; |
| let Inst{23-21} = op23_21; |
| let Inst{20} = 0; // The S bit. |
| let Inst{19-16} = Rn; |
| let Inst{15} = 0; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{11-8} = Rd; |
| let Inst{7-0} = imm{7-0}; |
| } |
| // register |
| def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm), |
| IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm", |
| [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> { |
| let isCommutable = Commutable; |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24} = 1; |
| let Inst{23-21} = op23_21; |
| let Inst{14-12} = 0b000; // imm3 |
| let Inst{7-6} = 0b00; // imm2 |
| let Inst{5-4} = 0b00; // type |
| } |
| // shifted register |
| def rs : T2sTwoRegShiftedReg< |
| (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), |
| IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm", |
| [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24} = 1; |
| let Inst{23-21} = op23_21; |
| } |
| } |
| |
| /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns |
| /// for a binary operation that produces a value and use the carry |
| /// bit. It's not predicable. |
| let Defs = [CPSR], Uses = [CPSR] in { |
| multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode, |
| bit Commutable = 0> { |
| // shifted imm |
| def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), |
| IIC_iALUi, opc, "\t$Rd, $Rn, $imm", |
| [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_imm:$imm, CPSR))]>, |
| Requires<[IsThumb2]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24-21} = opcod; |
| let Inst{15} = 0; |
| } |
| // register |
| def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr, |
| opc, ".w\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, rGPR:$Rm, CPSR))]>, |
| Requires<[IsThumb2]> { |
| let isCommutable = Commutable; |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| let Inst{14-12} = 0b000; // imm3 |
| let Inst{7-6} = 0b00; // imm2 |
| let Inst{5-4} = 0b00; // type |
| } |
| // shifted register |
| def rs : T2sTwoRegShiftedReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), |
| IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm", |
| [(set rGPR:$Rd, CPSR, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm, CPSR))]>, |
| Requires<[IsThumb2]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| } |
| } |
| } |
| |
| /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift / |
| // rotate operation that produces a value. |
| multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode> { |
| // 5-bit imm |
| def ri : T2sTwoRegShiftImm< |
| (outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi, |
| opc, ".w\t$Rd, $Rm, $imm", |
| [(set rGPR:$Rd, (opnode rGPR:$Rm, (i32 ty:$imm)))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-21} = 0b010010; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{5-4} = opcod; |
| } |
| // register |
| def rr : T2sThreeReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr, |
| opc, ".w\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0100; |
| let Inst{22-21} = opcod; |
| let Inst{15-12} = 0b1111; |
| let Inst{7-4} = 0b0000; |
| } |
| |
| // Optional destination register |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"), |
| (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"), |
| (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, |
| cc_out:$s)>; |
| |
| // Assembler aliases w/o the ".w" suffix. |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"), |
| (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, ty:$imm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"), |
| (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, |
| cc_out:$s)>; |
| |
| // and with the optional destination operand, too. |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"), |
| (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"), |
| (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, |
| cc_out:$s)>; |
| } |
| |
| /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test |
| /// patterns. Similar to T2I_bin_irs except the instruction does not produce |
| /// a explicit result, only implicitly set CPSR. |
| multiclass T2I_cmp_irs<bits<4> opcod, string opc, |
| InstrItinClass iii, InstrItinClass iir, InstrItinClass iis, |
| PatFrag opnode> { |
| let isCompare = 1, Defs = [CPSR] in { |
| // shifted imm |
| def ri : T2OneRegCmpImm< |
| (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), iii, |
| opc, ".w\t$Rn, $imm", |
| [(opnode GPRnopc:$Rn, t2_so_imm:$imm)]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24-21} = opcod; |
| let Inst{20} = 1; // The S bit. |
| let Inst{15} = 0; |
| let Inst{11-8} = 0b1111; // Rd |
| } |
| // register |
| def rr : T2TwoRegCmp< |
| (outs), (ins GPRnopc:$Rn, rGPR:$Rm), iir, |
| opc, ".w\t$Rn, $Rm", |
| [(opnode GPRnopc:$Rn, rGPR:$Rm)]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| let Inst{20} = 1; // The S bit. |
| let Inst{14-12} = 0b000; // imm3 |
| let Inst{11-8} = 0b1111; // Rd |
| let Inst{7-6} = 0b00; // imm2 |
| let Inst{5-4} = 0b00; // type |
| } |
| // shifted register |
| def rs : T2OneRegCmpShiftedReg< |
| (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), iis, |
| opc, ".w\t$Rn, $ShiftedRm", |
| [(opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| let Inst{20} = 1; // The S bit. |
| let Inst{11-8} = 0b1111; // Rd |
| } |
| } |
| |
| // Assembler aliases w/o the ".w" suffix. |
| // No alias here for 'rr' version as not all instantiations of this |
| // multiclass want one (CMP in particular, does not). |
| def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"), |
| (!cast<Instruction>(NAME#"ri") GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>; |
| def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"), |
| (!cast<Instruction>(NAME#"rs") GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>; |
| } |
| |
| /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns. |
| multiclass T2I_ld<bit signed, bits<2> opcod, string opc, |
| InstrItinClass iii, InstrItinClass iis, RegisterClass target, |
| PatFrag opnode> { |
| def i12 : T2Ii12<(outs target:$Rt), (ins t2addrmode_imm12:$addr), iii, |
| opc, ".w\t$Rt, $addr", |
| [(set target:$Rt, (opnode t2addrmode_imm12:$addr))]> { |
| bits<4> Rt; |
| bits<17> addr; |
| let Inst{31-25} = 0b1111100; |
| let Inst{24} = signed; |
| let Inst{23} = 1; |
| let Inst{22-21} = opcod; |
| let Inst{20} = 1; // load |
| let Inst{19-16} = addr{16-13}; // Rn |
| let Inst{15-12} = Rt; |
| let Inst{11-0} = addr{11-0}; // imm |
| } |
| def i8 : T2Ii8 <(outs target:$Rt), (ins t2addrmode_negimm8:$addr), iii, |
| opc, "\t$Rt, $addr", |
| [(set target:$Rt, (opnode t2addrmode_negimm8:$addr))]> { |
| bits<4> Rt; |
| bits<13> addr; |
| let Inst{31-27} = 0b11111; |
| let Inst{26-25} = 0b00; |
| let Inst{24} = signed; |
| let Inst{23} = 0; |
| let Inst{22-21} = opcod; |
| let Inst{20} = 1; // load |
| let Inst{19-16} = addr{12-9}; // Rn |
| let Inst{15-12} = Rt; |
| let Inst{11} = 1; |
| // Offset: index==TRUE, wback==FALSE |
| let Inst{10} = 1; // The P bit. |
| let Inst{9} = addr{8}; // U |
| let Inst{8} = 0; // The W bit. |
| let Inst{7-0} = addr{7-0}; // imm |
| } |
| def s : T2Iso <(outs target:$Rt), (ins t2addrmode_so_reg:$addr), iis, |
| opc, ".w\t$Rt, $addr", |
| [(set target:$Rt, (opnode t2addrmode_so_reg:$addr))]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-25} = 0b00; |
| let Inst{24} = signed; |
| let Inst{23} = 0; |
| let Inst{22-21} = opcod; |
| let Inst{20} = 1; // load |
| let Inst{11-6} = 0b000000; |
| |
| bits<4> Rt; |
| let Inst{15-12} = Rt; |
| |
| bits<10> addr; |
| let Inst{19-16} = addr{9-6}; // Rn |
| let Inst{3-0} = addr{5-2}; // Rm |
| let Inst{5-4} = addr{1-0}; // imm |
| |
| let DecoderMethod = "DecodeT2LoadShift"; |
| } |
| |
| // pci variant is very similar to i12, but supports negative offsets |
| // from the PC. |
| def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii, |
| opc, ".w\t$Rt, $addr", |
| [(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> { |
| let isReMaterializable = 1; |
| let Inst{31-27} = 0b11111; |
| let Inst{26-25} = 0b00; |
| let Inst{24} = signed; |
| let Inst{23} = ?; // add = (U == '1') |
| let Inst{22-21} = opcod; |
| let Inst{20} = 1; // load |
| let Inst{19-16} = 0b1111; // Rn |
| bits<4> Rt; |
| bits<12> addr; |
| let Inst{15-12} = Rt{3-0}; |
| let Inst{11-0} = addr{11-0}; |
| } |
| } |
| |
| /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns. |
| multiclass T2I_st<bits<2> opcod, string opc, |
| InstrItinClass iii, InstrItinClass iis, RegisterClass target, |
| PatFrag opnode> { |
| def i12 : T2Ii12<(outs), (ins target:$Rt, t2addrmode_imm12:$addr), iii, |
| opc, ".w\t$Rt, $addr", |
| [(opnode target:$Rt, t2addrmode_imm12:$addr)]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0001; |
| let Inst{22-21} = opcod; |
| let Inst{20} = 0; // !load |
| |
| bits<4> Rt; |
| let Inst{15-12} = Rt; |
| |
| bits<17> addr; |
| let addr{12} = 1; // add = TRUE |
| let Inst{19-16} = addr{16-13}; // Rn |
| let Inst{23} = addr{12}; // U |
| let Inst{11-0} = addr{11-0}; // imm |
| } |
| def i8 : T2Ii8 <(outs), (ins target:$Rt, t2addrmode_negimm8:$addr), iii, |
| opc, "\t$Rt, $addr", |
| [(opnode target:$Rt, t2addrmode_negimm8:$addr)]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0000; |
| let Inst{22-21} = opcod; |
| let Inst{20} = 0; // !load |
| let Inst{11} = 1; |
| // Offset: index==TRUE, wback==FALSE |
| let Inst{10} = 1; // The P bit. |
| let Inst{8} = 0; // The W bit. |
| |
| bits<4> Rt; |
| let Inst{15-12} = Rt; |
| |
| bits<13> addr; |
| let Inst{19-16} = addr{12-9}; // Rn |
| let Inst{9} = addr{8}; // U |
| let Inst{7-0} = addr{7-0}; // imm |
| } |
| def s : T2Iso <(outs), (ins target:$Rt, t2addrmode_so_reg:$addr), iis, |
| opc, ".w\t$Rt, $addr", |
| [(opnode target:$Rt, t2addrmode_so_reg:$addr)]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0000; |
| let Inst{22-21} = opcod; |
| let Inst{20} = 0; // !load |
| let Inst{11-6} = 0b000000; |
| |
| bits<4> Rt; |
| let Inst{15-12} = Rt; |
| |
| bits<10> addr; |
| let Inst{19-16} = addr{9-6}; // Rn |
| let Inst{3-0} = addr{5-2}; // Rm |
| let Inst{5-4} = addr{1-0}; // imm |
| } |
| } |
| |
| /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a |
| /// register and one whose operand is a register rotated by 8/16/24. |
| class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode> |
| : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr, |
| opc, ".w\t$Rd, $Rm$rot", |
| [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>, |
| Requires<[IsThumb2]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0100; |
| let Inst{22-20} = opcod; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{15-12} = 0b1111; |
| let Inst{7} = 1; |
| |
| bits<2> rot; |
| let Inst{5-4} = rot{1-0}; // rotate |
| } |
| |
| // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier. |
| class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode> |
| : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), |
| IIC_iEXTr, opc, "\t$Rd, $Rm$rot", |
| [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>, |
| Requires<[HasT2ExtractPack, IsThumb2]> { |
| bits<2> rot; |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0100; |
| let Inst{22-20} = opcod; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{15-12} = 0b1111; |
| let Inst{7} = 1; |
| let Inst{5-4} = rot; |
| } |
| |
| // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern |
| // supported yet. |
| class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc> |
| : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr, |
| opc, "\t$Rd, $Rm$rot", []>, |
| Requires<[IsThumb2, HasT2ExtractPack]> { |
| bits<2> rot; |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0100; |
| let Inst{22-20} = opcod; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{15-12} = 0b1111; |
| let Inst{7} = 1; |
| let Inst{5-4} = rot; |
| } |
| |
| /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a |
| /// register and one whose operand is a register rotated by 8/16/24. |
| class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode> |
| : T2ThreeReg<(outs rGPR:$Rd), |
| (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot), |
| IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", |
| [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>, |
| Requires<[HasT2ExtractPack, IsThumb2]> { |
| bits<2> rot; |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0100; |
| let Inst{22-20} = opcod; |
| let Inst{15-12} = 0b1111; |
| let Inst{7} = 1; |
| let Inst{5-4} = rot; |
| } |
| |
| class T2I_exta_rrot_np<bits<3> opcod, string opc> |
| : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot), |
| IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> { |
| bits<2> rot; |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0100; |
| let Inst{22-20} = opcod; |
| let Inst{15-12} = 0b1111; |
| let Inst{7} = 1; |
| let Inst{5-4} = rot; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Instructions |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // Miscellaneous Instructions. |
| // |
| |
| class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin, |
| string asm, list<dag> pattern> |
| : T2XI<oops, iops, itin, asm, pattern> { |
| bits<4> Rd; |
| bits<12> label; |
| |
| let Inst{11-8} = Rd; |
| let Inst{26} = label{11}; |
| let Inst{14-12} = label{10-8}; |
| let Inst{7-0} = label{7-0}; |
| } |
| |
| // LEApcrel - Load a pc-relative address into a register without offending the |
| // assembler. |
| def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd), |
| (ins t2adrlabel:$addr, pred:$p), |
| IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25-24} = 0b10; |
| // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE) |
| let Inst{22} = 0; |
| let Inst{20} = 0; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{15} = 0; |
| |
| bits<4> Rd; |
| bits<13> addr; |
| let Inst{11-8} = Rd; |
| let Inst{23} = addr{12}; |
| let Inst{21} = addr{12}; |
| let Inst{26} = addr{11}; |
| let Inst{14-12} = addr{10-8}; |
| let Inst{7-0} = addr{7-0}; |
| |
| let DecoderMethod = "DecodeT2Adr"; |
| } |
| |
| let neverHasSideEffects = 1, isReMaterializable = 1 in |
| def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p), |
| 4, IIC_iALUi, []>; |
| let hasSideEffects = 1 in |
| def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd), |
| (ins i32imm:$label, nohash_imm:$id, pred:$p), |
| 4, IIC_iALUi, |
| []>; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Load / store Instructions. |
| // |
| |
| // Load |
| let canFoldAsLoad = 1, isReMaterializable = 1 in |
| defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si, GPR, |
| UnOpFrag<(load node:$Src)>>; |
| |
| // Loads with zero extension |
| defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si, |
| rGPR, UnOpFrag<(zextloadi16 node:$Src)>>; |
| defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si, |
| rGPR, UnOpFrag<(zextloadi8 node:$Src)>>; |
| |
| // Loads with sign extension |
| defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si, |
| rGPR, UnOpFrag<(sextloadi16 node:$Src)>>; |
| defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si, |
| rGPR, UnOpFrag<(sextloadi8 node:$Src)>>; |
| |
| let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in { |
| // Load doubleword |
| def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2), |
| (ins t2addrmode_imm8s4:$addr), |
| IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>; |
| } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 |
| |
| // zextload i1 -> zextload i8 |
| def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr), |
| (t2LDRBi12 t2addrmode_imm12:$addr)>; |
| def : T2Pat<(zextloadi1 t2addrmode_negimm8:$addr), |
| (t2LDRBi8 t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr), |
| (t2LDRBs t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)), |
| (t2LDRBpci tconstpool:$addr)>; |
| |
| // extload -> zextload |
| // FIXME: Reduce the number of patterns by legalizing extload to zextload |
| // earlier? |
| def : T2Pat<(extloadi1 t2addrmode_imm12:$addr), |
| (t2LDRBi12 t2addrmode_imm12:$addr)>; |
| def : T2Pat<(extloadi1 t2addrmode_negimm8:$addr), |
| (t2LDRBi8 t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr), |
| (t2LDRBs t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)), |
| (t2LDRBpci tconstpool:$addr)>; |
| |
| def : T2Pat<(extloadi8 t2addrmode_imm12:$addr), |
| (t2LDRBi12 t2addrmode_imm12:$addr)>; |
| def : T2Pat<(extloadi8 t2addrmode_negimm8:$addr), |
| (t2LDRBi8 t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr), |
| (t2LDRBs t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)), |
| (t2LDRBpci tconstpool:$addr)>; |
| |
| def : T2Pat<(extloadi16 t2addrmode_imm12:$addr), |
| (t2LDRHi12 t2addrmode_imm12:$addr)>; |
| def : T2Pat<(extloadi16 t2addrmode_negimm8:$addr), |
| (t2LDRHi8 t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr), |
| (t2LDRHs t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)), |
| (t2LDRHpci tconstpool:$addr)>; |
| |
| // FIXME: The destination register of the loads and stores can't be PC, but |
| // can be SP. We need another regclass (similar to rGPR) to represent |
| // that. Not a pressing issue since these are selected manually, |
| // not via pattern. |
| |
| // Indexed loads |
| |
| let mayLoad = 1, neverHasSideEffects = 1 in { |
| def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins t2addrmode_imm8:$addr), |
| AddrModeT2_i8, IndexModePre, IIC_iLoad_iu, |
| "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb", |
| []> { |
| let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8"; |
| } |
| |
| def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset), |
| AddrModeT2_i8, IndexModePost, IIC_iLoad_iu, |
| "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>; |
| |
| def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins t2addrmode_imm8:$addr), |
| AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu, |
| "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb", |
| []> { |
| let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8"; |
| } |
| def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset), |
| AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu, |
| "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>; |
| |
| def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins t2addrmode_imm8:$addr), |
| AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu, |
| "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb", |
| []> { |
| let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8"; |
| } |
| def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset), |
| AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu, |
| "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>; |
| |
| def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins t2addrmode_imm8:$addr), |
| AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu, |
| "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb", |
| []> { |
| let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8"; |
| } |
| def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset), |
| AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu, |
| "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>; |
| |
| def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins t2addrmode_imm8:$addr), |
| AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu, |
| "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb", |
| []> { |
| let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8"; |
| } |
| def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb), |
| (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset), |
| AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu, |
| "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>; |
| } // mayLoad = 1, neverHasSideEffects = 1 |
| |
| // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110). |
| // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4 |
| class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii> |
| : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc, |
| "\t$Rt, $addr", []> { |
| bits<4> Rt; |
| bits<13> addr; |
| let Inst{31-27} = 0b11111; |
| let Inst{26-25} = 0b00; |
| let Inst{24} = signed; |
| let Inst{23} = 0; |
| let Inst{22-21} = type; |
| let Inst{20} = 1; // load |
| let Inst{19-16} = addr{12-9}; |
| let Inst{15-12} = Rt; |
| let Inst{11} = 1; |
| let Inst{10-8} = 0b110; // PUW. |
| let Inst{7-0} = addr{7-0}; |
| } |
| |
| def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>; |
| def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>; |
| def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>; |
| def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>; |
| def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>; |
| |
| // Store |
| defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si, GPR, |
| BinOpFrag<(store node:$LHS, node:$RHS)>>; |
| defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si, |
| rGPR, BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>; |
| defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si, |
| rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>; |
| |
| // Store doubleword |
| let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in |
| def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs), |
| (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr), |
| IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>; |
| |
| // Indexed stores |
| |
| let mayStore = 1, neverHasSideEffects = 1 in { |
| def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb), |
| (ins GPRnopc:$Rt, t2addrmode_imm8:$addr), |
| AddrModeT2_i8, IndexModePre, IIC_iStore_iu, |
| "str", "\t$Rt, $addr!", |
| "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> { |
| let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8"; |
| } |
| def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb), |
| (ins rGPR:$Rt, t2addrmode_imm8:$addr), |
| AddrModeT2_i8, IndexModePre, IIC_iStore_iu, |
| "strh", "\t$Rt, $addr!", |
| "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> { |
| let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8"; |
| } |
| |
| def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb), |
| (ins rGPR:$Rt, t2addrmode_imm8:$addr), |
| AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu, |
| "strb", "\t$Rt, $addr!", |
| "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> { |
| let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8"; |
| } |
| } // mayStore = 1, neverHasSideEffects = 1 |
| |
| def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb), |
| (ins GPRnopc:$Rt, addr_offset_none:$Rn, |
| t2am_imm8_offset:$offset), |
| AddrModeT2_i8, IndexModePost, IIC_iStore_iu, |
| "str", "\t$Rt, $Rn$offset", |
| "$Rn = $Rn_wb,@earlyclobber $Rn_wb", |
| [(set GPRnopc:$Rn_wb, |
| (post_store GPRnopc:$Rt, addr_offset_none:$Rn, |
| t2am_imm8_offset:$offset))]>; |
| |
| def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb), |
| (ins rGPR:$Rt, addr_offset_none:$Rn, |
| t2am_imm8_offset:$offset), |
| AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu, |
| "strh", "\t$Rt, $Rn$offset", |
| "$Rn = $Rn_wb,@earlyclobber $Rn_wb", |
| [(set GPRnopc:$Rn_wb, |
| (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn, |
| t2am_imm8_offset:$offset))]>; |
| |
| def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb), |
| (ins rGPR:$Rt, addr_offset_none:$Rn, |
| t2am_imm8_offset:$offset), |
| AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu, |
| "strb", "\t$Rt, $Rn$offset", |
| "$Rn = $Rn_wb,@earlyclobber $Rn_wb", |
| [(set GPRnopc:$Rn_wb, |
| (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn, |
| t2am_imm8_offset:$offset))]>; |
| |
| // Pseudo-instructions for pattern matching the pre-indexed stores. We can't |
| // put the patterns on the instruction definitions directly as ISel wants |
| // the address base and offset to be separate operands, not a single |
| // complex operand like we represent the instructions themselves. The |
| // pseudos map between the two. |
| let usesCustomInserter = 1, |
| Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in { |
| def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb), |
| (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p), |
| 4, IIC_iStore_ru, |
| [(set GPRnopc:$Rn_wb, |
| (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>; |
| def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb), |
| (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p), |
| 4, IIC_iStore_ru, |
| [(set GPRnopc:$Rn_wb, |
| (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>; |
| def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb), |
| (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p), |
| 4, IIC_iStore_ru, |
| [(set GPRnopc:$Rn_wb, |
| (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>; |
| } |
| |
| // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly |
| // only. |
| // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4 |
| class T2IstT<bits<2> type, string opc, InstrItinClass ii> |
| : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc, |
| "\t$Rt, $addr", []> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-25} = 0b00; |
| let Inst{24} = 0; // not signed |
| let Inst{23} = 0; |
| let Inst{22-21} = type; |
| let Inst{20} = 0; // store |
| let Inst{11} = 1; |
| let Inst{10-8} = 0b110; // PUW |
| |
| bits<4> Rt; |
| bits<13> addr; |
| let Inst{15-12} = Rt; |
| let Inst{19-16} = addr{12-9}; |
| let Inst{7-0} = addr{7-0}; |
| } |
| |
| def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>; |
| def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>; |
| def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>; |
| |
| // ldrd / strd pre / post variants |
| // For disassembly only. |
| |
| def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb), |
| (ins t2addrmode_imm8s4:$addr), IIC_iLoad_d_ru, |
| "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> { |
| let AsmMatchConverter = "cvtT2LdrdPre"; |
| let DecoderMethod = "DecodeT2LDRDPreInstruction"; |
| } |
| |
| def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb), |
| (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm), |
| IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm", |
| "$addr.base = $wb", []>; |
| |
| def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb), |
| (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr), |
| IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!", |
| "$addr.base = $wb", []> { |
| let AsmMatchConverter = "cvtT2StrdPre"; |
| let DecoderMethod = "DecodeT2STRDPreInstruction"; |
| } |
| |
| def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb), |
| (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr, |
| t2am_imm8s4_offset:$imm), |
| IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm", |
| "$addr.base = $wb", []>; |
| |
| // T2Ipl (Preload Data/Instruction) signals the memory system of possible future |
| // data/instruction access. |
| // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0), |
| // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1). |
| multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> { |
| |
| def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc, |
| "\t$addr", |
| [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> { |
| let Inst{31-25} = 0b1111100; |
| let Inst{24} = instr; |
| let Inst{22} = 0; |
| let Inst{21} = write; |
| let Inst{20} = 1; |
| let Inst{15-12} = 0b1111; |
| |
| bits<17> addr; |
| let addr{12} = 1; // add = TRUE |
| let Inst{19-16} = addr{16-13}; // Rn |
| let Inst{23} = addr{12}; // U |
| let Inst{11-0} = addr{11-0}; // imm12 |
| } |
| |
| def i8 : T2Ii8<(outs), (ins t2addrmode_negimm8:$addr), IIC_Preload, opc, |
| "\t$addr", |
| [(ARMPreload t2addrmode_negimm8:$addr, (i32 write), (i32 instr))]> { |
| let Inst{31-25} = 0b1111100; |
| let Inst{24} = instr; |
| let Inst{23} = 0; // U = 0 |
| let Inst{22} = 0; |
| let Inst{21} = write; |
| let Inst{20} = 1; |
| let Inst{15-12} = 0b1111; |
| let Inst{11-8} = 0b1100; |
| |
| bits<13> addr; |
| let Inst{19-16} = addr{12-9}; // Rn |
| let Inst{7-0} = addr{7-0}; // imm8 |
| } |
| |
| def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc, |
| "\t$addr", |
| [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> { |
| let Inst{31-25} = 0b1111100; |
| let Inst{24} = instr; |
| let Inst{23} = 0; // add = TRUE for T1 |
| let Inst{22} = 0; |
| let Inst{21} = write; |
| let Inst{20} = 1; |
| let Inst{15-12} = 0b1111; |
| let Inst{11-6} = 0000000; |
| |
| bits<10> addr; |
| let Inst{19-16} = addr{9-6}; // Rn |
| let Inst{3-0} = addr{5-2}; // Rm |
| let Inst{5-4} = addr{1-0}; // imm2 |
| |
| let DecoderMethod = "DecodeT2LoadShift"; |
| } |
| // FIXME: We should have a separate 'pci' variant here. As-is we represent |
| // it via the i12 variant, which it's related to, but that means we can |
| // represent negative immediates, which aren't legal for anything except |
| // the 'pci' case (Rn == 15). |
| } |
| |
| defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>; |
| defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>; |
| defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Load / store multiple Instructions. |
| // |
| |
| multiclass thumb2_ld_mult<string asm, InstrItinClass itin, |
| InstrItinClass itin_upd, bit L_bit> { |
| def IA : |
| T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops), |
| itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> { |
| bits<4> Rn; |
| bits<16> regs; |
| |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b00; |
| let Inst{24-23} = 0b01; // Increment After |
| let Inst{22} = 0; |
| let Inst{21} = 0; // No writeback |
| let Inst{20} = L_bit; |
| let Inst{19-16} = Rn; |
| let Inst{15-0} = regs; |
| } |
| def IA_UPD : |
| T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops), |
| itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> { |
| bits<4> Rn; |
| bits<16> regs; |
| |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b00; |
| let Inst{24-23} = 0b01; // Increment After |
| let Inst{22} = 0; |
| let Inst{21} = 1; // Writeback |
| let Inst{20} = L_bit; |
| let Inst{19-16} = Rn; |
| let Inst{15-0} = regs; |
| } |
| def DB : |
| T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops), |
| itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> { |
| bits<4> Rn; |
| bits<16> regs; |
| |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b00; |
| let Inst{24-23} = 0b10; // Decrement Before |
| let Inst{22} = 0; |
| let Inst{21} = 0; // No writeback |
| let Inst{20} = L_bit; |
| let Inst{19-16} = Rn; |
| let Inst{15-0} = regs; |
| } |
| def DB_UPD : |
| T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops), |
| itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> { |
| bits<4> Rn; |
| bits<16> regs; |
| |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b00; |
| let Inst{24-23} = 0b10; // Decrement Before |
| let Inst{22} = 0; |
| let Inst{21} = 1; // Writeback |
| let Inst{20} = L_bit; |
| let Inst{19-16} = Rn; |
| let Inst{15-0} = regs; |
| } |
| } |
| |
| let neverHasSideEffects = 1 in { |
| |
| let mayLoad = 1, hasExtraDefRegAllocReq = 1 in |
| defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>; |
| |
| multiclass thumb2_st_mult<string asm, InstrItinClass itin, |
| InstrItinClass itin_upd, bit L_bit> { |
| def IA : |
| T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops), |
| itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> { |
| bits<4> Rn; |
| bits<16> regs; |
| |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b00; |
| let Inst{24-23} = 0b01; // Increment After |
| let Inst{22} = 0; |
| let Inst{21} = 0; // No writeback |
| let Inst{20} = L_bit; |
| let Inst{19-16} = Rn; |
| let Inst{15} = 0; |
| let Inst{14} = regs{14}; |
| let Inst{13} = 0; |
| let Inst{12-0} = regs{12-0}; |
| } |
| def IA_UPD : |
| T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops), |
| itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> { |
| bits<4> Rn; |
| bits<16> regs; |
| |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b00; |
| let Inst{24-23} = 0b01; // Increment After |
| let Inst{22} = 0; |
| let Inst{21} = 1; // Writeback |
| let Inst{20} = L_bit; |
| let Inst{19-16} = Rn; |
| let Inst{15} = 0; |
| let Inst{14} = regs{14}; |
| let Inst{13} = 0; |
| let Inst{12-0} = regs{12-0}; |
| } |
| def DB : |
| T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops), |
| itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> { |
| bits<4> Rn; |
| bits<16> regs; |
| |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b00; |
| let Inst{24-23} = 0b10; // Decrement Before |
| let Inst{22} = 0; |
| let Inst{21} = 0; // No writeback |
| let Inst{20} = L_bit; |
| let Inst{19-16} = Rn; |
| let Inst{15} = 0; |
| let Inst{14} = regs{14}; |
| let Inst{13} = 0; |
| let Inst{12-0} = regs{12-0}; |
| } |
| def DB_UPD : |
| T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops), |
| itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> { |
| bits<4> Rn; |
| bits<16> regs; |
| |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b00; |
| let Inst{24-23} = 0b10; // Decrement Before |
| let Inst{22} = 0; |
| let Inst{21} = 1; // Writeback |
| let Inst{20} = L_bit; |
| let Inst{19-16} = Rn; |
| let Inst{15} = 0; |
| let Inst{14} = regs{14}; |
| let Inst{13} = 0; |
| let Inst{12-0} = regs{12-0}; |
| } |
| } |
| |
| |
| let mayStore = 1, hasExtraSrcRegAllocReq = 1 in |
| defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>; |
| |
| } // neverHasSideEffects |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Move Instructions. |
| // |
| |
| let neverHasSideEffects = 1 in |
| def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr, |
| "mov", ".w\t$Rd, $Rm", []> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = 0b0010; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{14-12} = 0b000; |
| let Inst{7-4} = 0b0000; |
| } |
| def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm, |
| pred:$p, zero_reg)>; |
| def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm, |
| pred:$p, CPSR)>; |
| def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm, |
| pred:$p, CPSR)>; |
| |
| // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16. |
| let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1, |
| AddedComplexity = 1 in |
| def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi, |
| "mov", ".w\t$Rd, $imm", |
| [(set rGPR:$Rd, t2_so_imm:$imm)]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24-21} = 0b0010; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{15} = 0; |
| } |
| |
| // cc_out is handled as part of the explicit mnemonic in the parser for 'mov'. |
| // Use aliases to get that to play nice here. |
| def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm, |
| pred:$p, CPSR)>; |
| def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm, |
| pred:$p, CPSR)>; |
| |
| def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm, |
| pred:$p, zero_reg)>; |
| def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm, |
| pred:$p, zero_reg)>; |
| |
| let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in |
| def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi, |
| "movw", "\t$Rd, $imm", |
| [(set rGPR:$Rd, imm0_65535:$imm)]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 1; |
| let Inst{24-21} = 0b0010; |
| let Inst{20} = 0; // The S bit. |
| let Inst{15} = 0; |
| |
| bits<4> Rd; |
| bits<16> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = imm{15-12}; |
| let Inst{26} = imm{11}; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{7-0} = imm{7-0}; |
| let DecoderMethod = "DecodeT2MOVTWInstruction"; |
| } |
| |
| def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd), |
| (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>; |
| |
| let Constraints = "$src = $Rd" in { |
| def t2MOVTi16 : T2I<(outs rGPR:$Rd), |
| (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi, |
| "movt", "\t$Rd, $imm", |
| [(set rGPR:$Rd, |
| (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 1; |
| let Inst{24-21} = 0b0110; |
| let Inst{20} = 0; // The S bit. |
| let Inst{15} = 0; |
| |
| bits<4> Rd; |
| bits<16> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = imm{15-12}; |
| let Inst{26} = imm{11}; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{7-0} = imm{7-0}; |
| let DecoderMethod = "DecodeT2MOVTWInstruction"; |
| } |
| |
| def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd), |
| (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>; |
| } // Constraints |
| |
| def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>; |
| |
| //===----------------------------------------------------------------------===// |
| // Extend Instructions. |
| // |
| |
| // Sign extenders |
| |
| def t2SXTB : T2I_ext_rrot<0b100, "sxtb", |
| UnOpFrag<(sext_inreg node:$Src, i8)>>; |
| def t2SXTH : T2I_ext_rrot<0b000, "sxth", |
| UnOpFrag<(sext_inreg node:$Src, i16)>>; |
| def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">; |
| |
| def t2SXTAB : T2I_exta_rrot<0b100, "sxtab", |
| BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>; |
| def t2SXTAH : T2I_exta_rrot<0b000, "sxtah", |
| BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>; |
| def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">; |
| |
| // Zero extenders |
| |
| let AddedComplexity = 16 in { |
| def t2UXTB : T2I_ext_rrot<0b101, "uxtb", |
| UnOpFrag<(and node:$Src, 0x000000FF)>>; |
| def t2UXTH : T2I_ext_rrot<0b001, "uxth", |
| UnOpFrag<(and node:$Src, 0x0000FFFF)>>; |
| def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16", |
| UnOpFrag<(and node:$Src, 0x00FF00FF)>>; |
| |
| // FIXME: This pattern incorrectly assumes the shl operator is a rotate. |
| // The transformation should probably be done as a combiner action |
| // instead so we can include a check for masking back in the upper |
| // eight bits of the source into the lower eight bits of the result. |
| //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF), |
| // (t2UXTB16 rGPR:$Src, 3)>, |
| // Requires<[HasT2ExtractPack, IsThumb2]>; |
| def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF), |
| (t2UXTB16 rGPR:$Src, 1)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| |
| def t2UXTAB : T2I_exta_rrot<0b101, "uxtab", |
| BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>; |
| def t2UXTAH : T2I_exta_rrot<0b001, "uxtah", |
| BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>; |
| def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Arithmetic Instructions. |
| // |
| |
| defm t2ADD : T2I_bin_ii12rs<0b000, "add", |
| BinOpFrag<(add node:$LHS, node:$RHS)>, 1>; |
| defm t2SUB : T2I_bin_ii12rs<0b101, "sub", |
| BinOpFrag<(sub node:$LHS, node:$RHS)>>; |
| |
| // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants. |
| // |
| // Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the |
| // selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by |
| // AdjustInstrPostInstrSelection where we determine whether or not to |
| // set the "s" bit based on CPSR liveness. |
| // |
| // FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen |
| // support for an optional CPSR definition that corresponds to the DAG |
| // node's second value. We can then eliminate the implicit def of CPSR. |
| defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi, |
| BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>; |
| defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi, |
| BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>; |
| |
| let hasPostISelHook = 1 in { |
| defm t2ADC : T2I_adde_sube_irs<0b1010, "adc", |
| BinOpWithFlagFrag<(ARMadde node:$LHS, node:$RHS, node:$FLAG)>, 1>; |
| defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc", |
| BinOpWithFlagFrag<(ARMsube node:$LHS, node:$RHS, node:$FLAG)>>; |
| } |
| |
| // RSB |
| defm t2RSB : T2I_rbin_irs <0b1110, "rsb", |
| BinOpFrag<(sub node:$LHS, node:$RHS)>>; |
| |
| // FIXME: Eliminate them if we can write def : Pat patterns which defines |
| // CPSR and the implicit def of CPSR is not needed. |
| defm t2RSBS : T2I_rbin_s_is <BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>; |
| |
| // (sub X, imm) gets canonicalized to (add X, -imm). Match this form. |
| // The assume-no-carry-in form uses the negation of the input since add/sub |
| // assume opposite meanings of the carry flag (i.e., carry == !borrow). |
| // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory |
| // details. |
| // The AddedComplexity preferences the first variant over the others since |
| // it can be shrunk to a 16-bit wide encoding, while the others cannot. |
| let AddedComplexity = 1 in |
| def : T2Pat<(add GPR:$src, imm1_255_neg:$imm), |
| (t2SUBri GPR:$src, imm1_255_neg:$imm)>; |
| def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm), |
| (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>; |
| def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm), |
| (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>; |
| def : T2Pat<(add GPR:$src, imm0_65535_neg:$imm), |
| (t2SUBrr GPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>; |
| |
| let AddedComplexity = 1 in |
| def : T2Pat<(ARMaddc rGPR:$src, imm1_255_neg:$imm), |
| (t2SUBSri rGPR:$src, imm1_255_neg:$imm)>; |
| def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm), |
| (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>; |
| def : T2Pat<(ARMaddc rGPR:$src, imm0_65535_neg:$imm), |
| (t2SUBSrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>; |
| // The with-carry-in form matches bitwise not instead of the negation. |
| // Effectively, the inverse interpretation of the carry flag already accounts |
| // for part of the negation. |
| let AddedComplexity = 1 in |
| def : T2Pat<(ARMadde rGPR:$src, imm0_255_not:$imm, CPSR), |
| (t2SBCri rGPR:$src, imm0_255_not:$imm)>; |
| def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR), |
| (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>; |
| def : T2Pat<(ARMadde rGPR:$src, imm0_65535_neg:$imm, CPSR), |
| (t2SBCrr rGPR:$src, (t2MOVi16 (imm_not_XFORM imm:$imm)))>; |
| |
| // Select Bytes -- for disassembly only |
| |
| def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), |
| NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-24} = 0b010; |
| let Inst{23} = 0b1; |
| let Inst{22-20} = 0b010; |
| let Inst{15-12} = 0b1111; |
| let Inst{7} = 0b1; |
| let Inst{6-4} = 0b000; |
| } |
| |
| // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned) |
| // And Miscellaneous operations -- for disassembly only |
| class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc, |
| list<dag> pat = [/* For disassembly only; pattern left blank */], |
| dag iops = (ins rGPR:$Rn, rGPR:$Rm), |
| string asm = "\t$Rd, $Rn, $Rm"> |
| : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0101; |
| let Inst{22-20} = op22_20; |
| let Inst{15-12} = 0b1111; |
| let Inst{7-4} = op7_4; |
| |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<4> Rm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = Rn; |
| let Inst{3-0} = Rm; |
| } |
| |
| // Saturating add/subtract -- for disassembly only |
| |
| def t2QADD : T2I_pam<0b000, 0b1000, "qadd", |
| [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))], |
| (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">; |
| def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">; |
| def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">; |
| def t2QASX : T2I_pam<0b010, 0b0001, "qasx">; |
| def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [], |
| (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">; |
| def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [], |
| (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">; |
| def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">; |
| def t2QSUB : T2I_pam<0b000, 0b1010, "qsub", |
| [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))], |
| (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">; |
| def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">; |
| def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">; |
| def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">; |
| def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">; |
| def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">; |
| def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">; |
| def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">; |
| def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">; |
| |
| // Signed/Unsigned add/subtract -- for disassembly only |
| |
| def t2SASX : T2I_pam<0b010, 0b0000, "sasx">; |
| def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">; |
| def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">; |
| def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">; |
| def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">; |
| def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">; |
| def t2UASX : T2I_pam<0b010, 0b0100, "uasx">; |
| def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">; |
| def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">; |
| def t2USAX : T2I_pam<0b110, 0b0100, "usax">; |
| def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">; |
| def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">; |
| |
| // Signed/Unsigned halving add/subtract -- for disassembly only |
| |
| def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">; |
| def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">; |
| def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">; |
| def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">; |
| def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">; |
| def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">; |
| def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">; |
| def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">; |
| def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">; |
| def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">; |
| def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">; |
| def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">; |
| |
| // Helper class for disassembly only |
| // A6.3.16 & A6.3.17 |
| // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions. |
| class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops, |
| dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern> |
| : T2ThreeReg<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; |
| } |
| |
| class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops, |
| dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern> |
| : T2FourReg<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; |
| } |
| |
| // Unsigned Sum of Absolute Differences [and Accumulate]. |
| def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd), |
| (ins rGPR:$Rn, rGPR:$Rm), |
| NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{15-12} = 0b1111; |
| } |
| def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd), |
| (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary, |
| "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| |
| // Signed/Unsigned saturate. |
| class T2SatI<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<4> Rn; |
| bits<5> sat_imm; |
| bits<7> sh; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = Rn; |
| let Inst{4-0} = sat_imm; |
| let Inst{21} = sh{5}; |
| let Inst{14-12} = sh{4-2}; |
| let Inst{7-6} = sh{1-0}; |
| } |
| |
| def t2SSAT: T2SatI< |
| (outs rGPR:$Rd), |
| (ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh), |
| NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25-22} = 0b1100; |
| let Inst{20} = 0; |
| let Inst{15} = 0; |
| let Inst{5} = 0; |
| } |
| |
| def t2SSAT16: T2SatI< |
| (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary, |
| "ssat16", "\t$Rd, $sat_imm, $Rn", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25-22} = 0b1100; |
| let Inst{20} = 0; |
| let Inst{15} = 0; |
| let Inst{21} = 1; // sh = '1' |
| let Inst{14-12} = 0b000; // imm3 = '000' |
| let Inst{7-6} = 0b00; // imm2 = '00' |
| let Inst{5-4} = 0b00; |
| } |
| |
| def t2USAT: T2SatI< |
| (outs rGPR:$Rd), |
| (ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh), |
| NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25-22} = 0b1110; |
| let Inst{20} = 0; |
| let Inst{15} = 0; |
| } |
| |
| def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn), |
| NoItinerary, |
| "usat16", "\t$Rd, $sat_imm, $Rn", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-22} = 0b1111001110; |
| let Inst{20} = 0; |
| let Inst{15} = 0; |
| let Inst{21} = 1; // sh = '1' |
| let Inst{14-12} = 0b000; // imm3 = '000' |
| let Inst{7-6} = 0b00; // imm2 = '00' |
| let Inst{5-4} = 0b00; |
| } |
| |
| def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>; |
| def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>; |
| |
| //===----------------------------------------------------------------------===// |
| // Shift and rotate Instructions. |
| // |
| |
| defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31, |
| BinOpFrag<(shl node:$LHS, node:$RHS)>>; |
| defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr, |
| BinOpFrag<(srl node:$LHS, node:$RHS)>>; |
| defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr, |
| BinOpFrag<(sra node:$LHS, node:$RHS)>>; |
| defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31, |
| BinOpFrag<(rotr node:$LHS, node:$RHS)>>; |
| |
| // (rotr x, (and y, 0x...1f)) ==> (ROR x, y) |
| def : T2Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)), |
| (t2RORrr rGPR:$lhs, rGPR:$rhs)>; |
| |
| let Uses = [CPSR] in { |
| def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi, |
| "rrx", "\t$Rd, $Rm", |
| [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = 0b0010; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{14-12} = 0b000; |
| let Inst{7-4} = 0b0011; |
| } |
| } |
| |
| let isCodeGenOnly = 1, Defs = [CPSR] in { |
| def t2MOVsrl_flag : T2TwoRegShiftImm< |
| (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi, |
| "lsrs", ".w\t$Rd, $Rm, #1", |
| [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = 0b0010; |
| let Inst{20} = 1; // The S bit. |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{5-4} = 0b01; // Shift type. |
| // Shift amount = Inst{14-12:7-6} = 1. |
| let Inst{14-12} = 0b000; |
| let Inst{7-6} = 0b01; |
| } |
| def t2MOVsra_flag : T2TwoRegShiftImm< |
| (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi, |
| "asrs", ".w\t$Rd, $Rm, #1", |
| [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = 0b0010; |
| let Inst{20} = 1; // The S bit. |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{5-4} = 0b10; // Shift type. |
| // Shift amount = Inst{14-12:7-6} = 1. |
| let Inst{14-12} = 0b000; |
| let Inst{7-6} = 0b01; |
| } |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Bitwise Instructions. |
| // |
| |
| defm t2AND : T2I_bin_w_irs<0b0000, "and", |
| IIC_iBITi, IIC_iBITr, IIC_iBITsi, |
| BinOpFrag<(and node:$LHS, node:$RHS)>, 1>; |
| defm t2ORR : T2I_bin_w_irs<0b0010, "orr", |
| IIC_iBITi, IIC_iBITr, IIC_iBITsi, |
| BinOpFrag<(or node:$LHS, node:$RHS)>, 1>; |
| defm t2EOR : T2I_bin_w_irs<0b0100, "eor", |
| IIC_iBITi, IIC_iBITr, IIC_iBITsi, |
| BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>; |
| |
| defm t2BIC : T2I_bin_w_irs<0b0001, "bic", |
| IIC_iBITi, IIC_iBITr, IIC_iBITsi, |
| BinOpFrag<(and node:$LHS, (not node:$RHS))>>; |
| |
| class T2BitFI<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rd; |
| bits<5> msb; |
| bits<5> lsb; |
| |
| let Inst{11-8} = Rd; |
| let Inst{4-0} = msb{4-0}; |
| let Inst{14-12} = lsb{4-2}; |
| let Inst{7-6} = lsb{1-0}; |
| } |
| |
| class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2BitFI<oops, iops, itin, opc, asm, pattern> { |
| bits<4> Rn; |
| |
| let Inst{19-16} = Rn; |
| } |
| |
| let Constraints = "$src = $Rd" in |
| def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm), |
| IIC_iUNAsi, "bfc", "\t$Rd, $imm", |
| [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{26} = 0; // should be 0. |
| let Inst{25} = 1; |
| let Inst{24-20} = 0b10110; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{15} = 0; |
| let Inst{5} = 0; // should be 0. |
| |
| bits<10> imm; |
| let msb{4-0} = imm{9-5}; |
| let lsb{4-0} = imm{4-0}; |
| } |
| |
| def t2SBFX: T2TwoRegBitFI< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb), |
| IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 1; |
| let Inst{24-20} = 0b10100; |
| let Inst{15} = 0; |
| } |
| |
| def t2UBFX: T2TwoRegBitFI< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb), |
| IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 1; |
| let Inst{24-20} = 0b11100; |
| let Inst{15} = 0; |
| } |
| |
| // A8.6.18 BFI - Bitfield insert (Encoding T1) |
| let Constraints = "$src = $Rd" in { |
| def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd), |
| (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm), |
| IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm", |
| [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn, |
| bf_inv_mask_imm:$imm))]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{26} = 0; // should be 0. |
| let Inst{25} = 1; |
| let Inst{24-20} = 0b10110; |
| let Inst{15} = 0; |
| let Inst{5} = 0; // should be 0. |
| |
| bits<10> imm; |
| let msb{4-0} = imm{9-5}; |
| let lsb{4-0} = imm{4-0}; |
| } |
| } |
| |
| defm t2ORN : T2I_bin_irs<0b0011, "orn", |
| IIC_iBITi, IIC_iBITr, IIC_iBITsi, |
| BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">; |
| |
| /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a |
| /// unary operation that produces a value. These are predicable and can be |
| /// changed to modify CPSR. |
| multiclass T2I_un_irs<bits<4> opcod, string opc, |
| InstrItinClass iii, InstrItinClass iir, InstrItinClass iis, |
| PatFrag opnode, |
| bit Cheap = 0, bit ReMat = 0, bit MoveImm = 0> { |
| // shifted imm |
| def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii, |
| opc, "\t$Rd, $imm", |
| [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> { |
| let isAsCheapAsAMove = Cheap; |
| let isReMaterializable = ReMat; |
| let isMoveImm = MoveImm; |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24-21} = opcod; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{15} = 0; |
| } |
| // register |
| def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir, |
| opc, ".w\t$Rd, $Rm", |
| [(set rGPR:$Rd, (opnode rGPR:$Rm))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{14-12} = 0b000; // imm3 |
| let Inst{7-6} = 0b00; // imm2 |
| let Inst{5-4} = 0b00; // type |
| } |
| // shifted register |
| def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis, |
| opc, ".w\t$Rd, $ShiftedRm", |
| [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = opcod; |
| let Inst{19-16} = 0b1111; // Rn |
| } |
| } |
| |
| // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version |
| let AddedComplexity = 1 in |
| defm t2MVN : T2I_un_irs <0b0011, "mvn", |
| IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi, |
| UnOpFrag<(not node:$Src)>, 1, 1, 1>; |
| |
| let AddedComplexity = 1 in |
| def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm), |
| (t2BICri rGPR:$src, t2_so_imm_not:$imm)>; |
| |
| // top16Zero - answer true if the upper 16 bits of $src are 0, false otherwise |
| def top16Zero: PatLeaf<(i32 rGPR:$src), [{ |
| return CurDAG->MaskedValueIsZero(SDValue(N,0), APInt::getHighBitsSet(32, 16)); |
| }]>; |
| |
| // so_imm_notSext is needed instead of so_imm_not, as the value of imm |
| // will match the extended, not the original bitWidth for $src. |
| def : T2Pat<(and top16Zero:$src, t2_so_imm_notSext:$imm), |
| (t2BICri rGPR:$src, t2_so_imm_notSext:$imm)>; |
| |
| |
| // FIXME: Disable this pattern on Darwin to workaround an assembler bug. |
| def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm), |
| (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>, |
| Requires<[IsThumb2]>; |
| |
| def : T2Pat<(t2_so_imm_not:$src), |
| (t2MVNi t2_so_imm_not:$src)>; |
| |
| //===----------------------------------------------------------------------===// |
| // Multiply Instructions. |
| // |
| let isCommutable = 1 in |
| def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32, |
| "mul", "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b000; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-4} = 0b0000; // Multiply |
| } |
| |
| def t2MLA: T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, |
| "mla", "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]>, |
| Requires<[IsThumb2, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b000; |
| let Inst{7-4} = 0b0000; // Multiply |
| } |
| |
| def t2MLS: T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, |
| "mls", "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]>, |
| Requires<[IsThumb2, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b000; |
| let Inst{7-4} = 0b0001; // Multiply and Subtract |
| } |
| |
| // Extra precision multiplies with low / high results |
| let neverHasSideEffects = 1 in { |
| let isCommutable = 1 in { |
| def t2SMULL : T2MulLong<0b000, 0b0000, |
| (outs rGPR:$RdLo, rGPR:$RdHi), |
| (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64, |
| "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>; |
| |
| def t2UMULL : T2MulLong<0b010, 0b0000, |
| (outs rGPR:$RdLo, rGPR:$RdHi), |
| (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64, |
| "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>; |
| } // isCommutable |
| |
| // Multiply + accumulate |
| def t2SMLAL : T2MlaLong<0b100, 0b0000, |
| (outs rGPR:$RdLo, rGPR:$RdHi), |
| (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64, |
| "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>, |
| RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">; |
| |
| def t2UMLAL : T2MlaLong<0b110, 0b0000, |
| (outs rGPR:$RdLo, rGPR:$RdHi), |
| (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64, |
| "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>, |
| RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">; |
| |
| def t2UMAAL : T2MulLong<0b110, 0b0110, |
| (outs rGPR:$RdLo, rGPR:$RdHi), |
| (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, |
| "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| } // neverHasSideEffects |
| |
| // Rounding variants of the below included for disassembly only |
| |
| // Most significant word multiply |
| def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32, |
| "smmul", "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b101; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0) |
| } |
| |
| def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32, |
| "smmulr", "\t$Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b101; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1) |
| } |
| |
| def t2SMMLA : T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, |
| "smmla", "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>, |
| Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b101; |
| let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0) |
| } |
| |
| def t2SMMLAR: T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, |
| "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b101; |
| let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1) |
| } |
| |
| def t2SMMLS: T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, |
| "smmls", "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>, |
| Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b110; |
| let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0) |
| } |
| |
| def t2SMMLSR:T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, |
| "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b110; |
| let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1) |
| } |
| |
| multiclass T2I_smul<string opc, PatFrag opnode> { |
| def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16, |
| !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16), |
| (sext_inreg rGPR:$Rm, i16)))]>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b001; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b00; |
| } |
| |
| def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16, |
| !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16), |
| (sra rGPR:$Rm, (i32 16))))]>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b001; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b01; |
| } |
| |
| def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16, |
| !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)), |
| (sext_inreg rGPR:$Rm, i16)))]>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b001; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b10; |
| } |
| |
| def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16, |
| !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)), |
| (sra rGPR:$Rm, (i32 16))))]>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b001; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b11; |
| } |
| |
| def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16, |
| !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (sra (opnode rGPR:$Rn, |
| (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b011; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b00; |
| } |
| |
| def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16, |
| !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (sra (opnode rGPR:$Rn, |
| (sra rGPR:$Rm, (i32 16))), (i32 16)))]>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b011; |
| let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate) |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b01; |
| } |
| } |
| |
| |
| multiclass T2I_smla<string opc, PatFrag opnode> { |
| def BB : T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16, |
| !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (add rGPR:$Ra, |
| (opnode (sext_inreg rGPR:$Rn, i16), |
| (sext_inreg rGPR:$Rm, i16))))]>, |
| Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b001; |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b00; |
| } |
| |
| def BT : T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16, |
| !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16), |
| (sra rGPR:$Rm, (i32 16)))))]>, |
| Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b001; |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b01; |
| } |
| |
| def TB : T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16, |
| !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)), |
| (sext_inreg rGPR:$Rm, i16))))]>, |
| Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b001; |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b10; |
| } |
| |
| def TT : T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16, |
| !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)), |
| (sra rGPR:$Rm, (i32 16)))))]>, |
| Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b001; |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b11; |
| } |
| |
| def WB : T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16, |
| !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn, |
| (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>, |
| Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b011; |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b00; |
| } |
| |
| def WT : T2FourReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16, |
| !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra", |
| [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn, |
| (sra rGPR:$Rm, (i32 16))), (i32 16))))]>, |
| Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-23} = 0b0110; |
| let Inst{22-20} = 0b011; |
| let Inst{7-6} = 0b00; |
| let Inst{5-4} = 0b01; |
| } |
| } |
| |
| defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>; |
| defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>; |
| |
| // Halfword multiple accumulate long: SMLAL<x><y> |
| def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd), |
| (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm", |
| [/* For disassembly only; pattern left blank */]>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd), |
| (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm", |
| [/* For disassembly only; pattern left blank */]>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd), |
| (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm", |
| [/* For disassembly only; pattern left blank */]>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd), |
| (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm", |
| [/* For disassembly only; pattern left blank */]>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| |
| // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD |
| def t2SMUAD: T2ThreeReg_mac< |
| 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), |
| IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{15-12} = 0b1111; |
| } |
| def t2SMUADX:T2ThreeReg_mac< |
| 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), |
| IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{15-12} = 0b1111; |
| } |
| def t2SMUSD: T2ThreeReg_mac< |
| 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), |
| IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{15-12} = 0b1111; |
| } |
| def t2SMUSDX:T2ThreeReg_mac< |
| 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), |
| IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]> { |
| let Inst{15-12} = 0b1111; |
| } |
| def t2SMLAD : T2FourReg_mac< |
| 0, 0b010, 0b0000, (outs rGPR:$Rd), |
| (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad", |
| "\t$Rd, $Rn, $Rm, $Ra", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLADX : T2FourReg_mac< |
| 0, 0b010, 0b0001, (outs rGPR:$Rd), |
| (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx", |
| "\t$Rd, $Rn, $Rm, $Ra", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd), |
| (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd", |
| "\t$Rd, $Rn, $Rm, $Ra", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd), |
| (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx", |
| "\t$Rd, $Rn, $Rm, $Ra", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd), |
| (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald", |
| "\t$Ra, $Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd), |
| (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx", |
| "\t$Ra, $Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd), |
| (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlsld", |
| "\t$Ra, $Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd), |
| (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx", |
| "\t$Ra, $Rd, $Rn, $Rm", []>, |
| Requires<[IsThumb2, HasThumb2DSP]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Division Instructions. |
| // Signed and unsigned division on v7-M |
| // |
| def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV, |
| "sdiv", "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>, |
| Requires<[HasDivide, IsThumb2]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-21} = 0b011100; |
| let Inst{20} = 0b1; |
| let Inst{15-12} = 0b1111; |
| let Inst{7-4} = 0b1111; |
| } |
| |
| def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV, |
| "udiv", "\t$Rd, $Rn, $Rm", |
| [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>, |
| Requires<[HasDivide, IsThumb2]> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-21} = 0b011101; |
| let Inst{20} = 0b1; |
| let Inst{15-12} = 0b1111; |
| let Inst{7-4} = 0b1111; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Misc. Arithmetic Instructions. |
| // |
| |
| class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops, |
| InstrItinClass itin, string opc, string asm, list<dag> pattern> |
| : T2ThreeReg<oops, iops, itin, opc, asm, pattern> { |
| let Inst{31-27} = 0b11111; |
| let Inst{26-22} = 0b01010; |
| let Inst{21-20} = op1; |
| let Inst{15-12} = 0b1111; |
| let Inst{7-6} = 0b10; |
| let Inst{5-4} = op2; |
| let Rn{3-0} = Rm; |
| } |
| |
| def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr, |
| "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>; |
| |
| def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr, |
| "rbit", "\t$Rd, $Rm", |
| [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>; |
| |
| def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr, |
| "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>; |
| |
| def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr, |
| "rev16", ".w\t$Rd, $Rm", |
| [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>; |
| |
| def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr, |
| "revsh", ".w\t$Rd, $Rm", |
| [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>; |
| |
| def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)), |
| (and (srl rGPR:$Rm, (i32 8)), 0xFF)), |
| (t2REVSH rGPR:$Rm)>; |
| |
| def t2PKHBT : T2ThreeReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh), |
| IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh", |
| [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF), |
| (and (shl rGPR:$Rm, pkh_lsl_amt:$sh), |
| 0xFFFF0000)))]>, |
| Requires<[HasT2ExtractPack, IsThumb2]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-20} = 0b01100; |
| let Inst{5} = 0; // BT form |
| let Inst{4} = 0; |
| |
| bits<5> sh; |
| let Inst{14-12} = sh{4-2}; |
| let Inst{7-6} = sh{1-0}; |
| } |
| |
| // Alternate cases for PKHBT where identities eliminate some nodes. |
| def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)), |
| (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)), |
| (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| |
| // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and |
| // will match the pattern below. |
| def t2PKHTB : T2ThreeReg< |
| (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh), |
| IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh", |
| [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000), |
| (and (sra rGPR:$Rm, pkh_asr_amt:$sh), |
| 0xFFFF)))]>, |
| Requires<[HasT2ExtractPack, IsThumb2]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-20} = 0b01100; |
| let Inst{5} = 1; // TB form |
| let Inst{4} = 0; |
| |
| bits<5> sh; |
| let Inst{14-12} = sh{4-2}; |
| let Inst{7-6} = sh{1-0}; |
| } |
| |
| // Alternate cases for PKHTB where identities eliminate some nodes. Note that |
| // a shift amount of 0 is *not legal* here, it is PKHBT instead. |
| def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)), |
| (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), |
| (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)), |
| (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Comparison Instructions... |
| // |
| defm t2CMP : T2I_cmp_irs<0b1101, "cmp", |
| IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi, |
| BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>; |
| |
| def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm), |
| (t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>; |
| def : T2Pat<(ARMcmpZ GPRnopc:$lhs, rGPR:$rhs), |
| (t2CMPrr GPRnopc:$lhs, rGPR:$rhs)>; |
| def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs), |
| (t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>; |
| |
| let isCompare = 1, Defs = [CPSR] in { |
| // shifted imm |
| def t2CMNri : T2OneRegCmpImm< |
| (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iCMPi, |
| "cmn", ".w\t$Rn, $imm", |
| [(ARMcmn GPRnopc:$Rn, (ineg t2_so_imm:$imm))]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24-21} = 0b1000; |
| let Inst{20} = 1; // The S bit. |
| let Inst{15} = 0; |
| let Inst{11-8} = 0b1111; // Rd |
| } |
| // register |
| def t2CMNzrr : T2TwoRegCmp< |
| (outs), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iCMPr, |
| "cmn", ".w\t$Rn, $Rm", |
| [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))> |
| GPRnopc:$Rn, rGPR:$Rm)]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = 0b1000; |
| let Inst{20} = 1; // The S bit. |
| let Inst{14-12} = 0b000; // imm3 |
| let Inst{11-8} = 0b1111; // Rd |
| let Inst{7-6} = 0b00; // imm2 |
| let Inst{5-4} = 0b00; // type |
| } |
| // shifted register |
| def t2CMNzrs : T2OneRegCmpShiftedReg< |
| (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), IIC_iCMPsi, |
| "cmn", ".w\t$Rn, $ShiftedRm", |
| [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))> |
| GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = 0b1000; |
| let Inst{20} = 1; // The S bit. |
| let Inst{11-8} = 0b1111; // Rd |
| } |
| } |
| |
| // Assembler aliases w/o the ".w" suffix. |
| // No alias here for 'rr' version as not all instantiations of this multiclass |
| // want one (CMP in particular, does not). |
| def : t2InstAlias<"cmn${p} $Rn, $imm", |
| (t2CMNri GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>; |
| def : t2InstAlias<"cmn${p} $Rn, $shift", |
| (t2CMNzrs GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>; |
| |
| def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm), |
| (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>; |
| |
| def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm), |
| (t2CMNri GPRnopc:$src, t2_so_imm_neg:$imm)>; |
| |
| defm t2TST : T2I_cmp_irs<0b0000, "tst", |
| IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi, |
| BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>; |
| defm t2TEQ : T2I_cmp_irs<0b0100, "teq", |
| IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi, |
| BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>; |
| |
| // Conditional moves |
| // FIXME: should be able to write a pattern for ARMcmov, but can't use |
| // a two-value operand where a dag node expects two operands. :( |
| let neverHasSideEffects = 1 in { |
| |
| let isCommutable = 1, isSelect = 1 in |
| def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd), |
| (ins rGPR:$false, rGPR:$Rm, pred:$p), |
| 4, IIC_iCMOVr, |
| [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>, |
| RegConstraint<"$false = $Rd">; |
| |
| let isMoveImm = 1 in |
| def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd), |
| (ins rGPR:$false, t2_so_imm:$imm, pred:$p), |
| 4, IIC_iCMOVi, |
| [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>, |
| RegConstraint<"$false = $Rd">; |
| |
| // FIXME: Pseudo-ize these. For now, just mark codegen only. |
| let isCodeGenOnly = 1 in { |
| let isMoveImm = 1 in |
| def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm), |
| IIC_iCMOVi, |
| "movw", "\t$Rd, $imm", []>, |
| RegConstraint<"$false = $Rd"> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 1; |
| let Inst{24-21} = 0b0010; |
| let Inst{20} = 0; // The S bit. |
| let Inst{15} = 0; |
| |
| bits<4> Rd; |
| bits<16> imm; |
| |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = imm{15-12}; |
| let Inst{26} = imm{11}; |
| let Inst{14-12} = imm{10-8}; |
| let Inst{7-0} = imm{7-0}; |
| } |
| |
| let isMoveImm = 1 in |
| def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst), |
| (ins rGPR:$false, i32imm:$src, pred:$p), |
| IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">; |
| |
| let isMoveImm = 1 in |
| def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm), |
| IIC_iCMOVi, "mvn", "\t$Rd, $imm", |
| [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm, |
| imm:$cc, CCR:$ccr))*/]>, |
| RegConstraint<"$false = $Rd"> { |
| let Inst{31-27} = 0b11110; |
| let Inst{25} = 0; |
| let Inst{24-21} = 0b0011; |
| let Inst{20} = 0; // The S bit. |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{15} = 0; |
| } |
| |
| class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-25} = 0b01; |
| let Inst{24-21} = 0b0010; |
| let Inst{20} = 0; // The S bit. |
| let Inst{19-16} = 0b1111; // Rn |
| let Inst{5-4} = opcod; // Shift type. |
| } |
| def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd), |
| (ins rGPR:$false, rGPR:$Rm, i32imm:$imm), |
| IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>, |
| RegConstraint<"$false = $Rd">; |
| def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd), |
| (ins rGPR:$false, rGPR:$Rm, i32imm:$imm), |
| IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>, |
| RegConstraint<"$false = $Rd">; |
| def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd), |
| (ins rGPR:$false, rGPR:$Rm, i32imm:$imm), |
| IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>, |
| RegConstraint<"$false = $Rd">; |
| def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd), |
| (ins rGPR:$false, rGPR:$Rm, i32imm:$imm), |
| IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>, |
| RegConstraint<"$false = $Rd">; |
| } // isCodeGenOnly = 1 |
| |
| } // neverHasSideEffects |
| |
| //===----------------------------------------------------------------------===// |
| // Atomic operations intrinsics |
| // |
| |
| // memory barriers protect the atomic sequences |
| let hasSideEffects = 1 in { |
| def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary, |
| "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>, |
| Requires<[IsThumb, HasDB]> { |
| bits<4> opt; |
| let Inst{31-4} = 0xf3bf8f5; |
| let Inst{3-0} = opt; |
| } |
| } |
| |
| def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary, |
| "dsb", "\t$opt", []>, |
| Requires<[IsThumb, HasDB]> { |
| bits<4> opt; |
| let Inst{31-4} = 0xf3bf8f4; |
| let Inst{3-0} = opt; |
| } |
| |
| def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary, |
| "isb", "\t$opt", |
| []>, Requires<[IsThumb, HasDB]> { |
| bits<4> opt; |
| let Inst{31-4} = 0xf3bf8f6; |
| let Inst{3-0} = opt; |
| } |
| |
| class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz, |
| InstrItinClass itin, string opc, string asm, string cstr, |
| list<dag> pattern, bits<4> rt2 = 0b1111> |
| : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-20} = 0b0001101; |
| let Inst{11-8} = rt2; |
| let Inst{7-6} = 0b01; |
| let Inst{5-4} = opcod; |
| let Inst{3-0} = 0b1111; |
| |
| bits<4> addr; |
| bits<4> Rt; |
| let Inst{19-16} = addr; |
| let Inst{15-12} = Rt; |
| } |
| class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz, |
| InstrItinClass itin, string opc, string asm, string cstr, |
| list<dag> pattern, bits<4> rt2 = 0b1111> |
| : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> { |
| let Inst{31-27} = 0b11101; |
| let Inst{26-20} = 0b0001100; |
| let Inst{11-8} = rt2; |
| let Inst{7-6} = 0b01; |
| let Inst{5-4} = opcod; |
| |
| bits<4> Rd; |
| bits<4> addr; |
| bits<4> Rt; |
| let Inst{3-0} = Rd; |
| let Inst{19-16} = addr; |
| let Inst{15-12} = Rt; |
| } |
| |
| let mayLoad = 1 in { |
| def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins addr_offset_none:$addr), |
| AddrModeNone, 4, NoItinerary, |
| "ldrexb", "\t$Rt, $addr", "", []>; |
| def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins addr_offset_none:$addr), |
| AddrModeNone, 4, NoItinerary, |
| "ldrexh", "\t$Rt, $addr", "", []>; |
| def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr), |
| AddrModeNone, 4, NoItinerary, |
| "ldrex", "\t$Rt, $addr", "", []> { |
| bits<4> Rt; |
| bits<12> addr; |
| let Inst{31-27} = 0b11101; |
| let Inst{26-20} = 0b0000101; |
| let Inst{19-16} = addr{11-8}; |
| let Inst{15-12} = Rt; |
| let Inst{11-8} = 0b1111; |
| let Inst{7-0} = addr{7-0}; |
| } |
| let hasExtraDefRegAllocReq = 1 in |
| def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2), |
| (ins addr_offset_none:$addr), |
| AddrModeNone, 4, NoItinerary, |
| "ldrexd", "\t$Rt, $Rt2, $addr", "", |
| [], {?, ?, ?, ?}> { |
| bits<4> Rt2; |
| let Inst{11-8} = Rt2; |
| } |
| } |
| |
| let mayStore = 1, Constraints = "@earlyclobber $Rd" in { |
| def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd), |
| (ins rGPR:$Rt, addr_offset_none:$addr), |
| AddrModeNone, 4, NoItinerary, |
| "strexb", "\t$Rd, $Rt, $addr", "", []>; |
| def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd), |
| (ins rGPR:$Rt, addr_offset_none:$addr), |
| AddrModeNone, 4, NoItinerary, |
| "strexh", "\t$Rd, $Rt, $addr", "", []>; |
| def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, |
| t2addrmode_imm0_1020s4:$addr), |
| AddrModeNone, 4, NoItinerary, |
| "strex", "\t$Rd, $Rt, $addr", "", |
| []> { |
| bits<4> Rd; |
| bits<4> Rt; |
| bits<12> addr; |
| let Inst{31-27} = 0b11101; |
| let Inst{26-20} = 0b0000100; |
| let Inst{19-16} = addr{11-8}; |
| let Inst{15-12} = Rt; |
| let Inst{11-8} = Rd; |
| let Inst{7-0} = addr{7-0}; |
| } |
| let hasExtraSrcRegAllocReq = 1 in |
| def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd), |
| (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr), |
| AddrModeNone, 4, NoItinerary, |
| "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [], |
| {?, ?, ?, ?}> { |
| bits<4> Rt2; |
| let Inst{11-8} = Rt2; |
| } |
| } |
| |
| def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>, |
| Requires<[IsThumb2, HasV7]> { |
| let Inst{31-16} = 0xf3bf; |
| let Inst{15-14} = 0b10; |
| let Inst{13} = 0; |
| let Inst{12} = 0; |
| let Inst{11-8} = 0b1111; |
| let Inst{7-4} = 0b0010; |
| let Inst{3-0} = 0b1111; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // SJLJ Exception handling intrinsics |
| // eh_sjlj_setjmp() is an instruction sequence to store the return |
| // address and save #0 in R0 for the non-longjmp case. |
| // Since by its nature we may be coming from some other function to get |
| // here, and we're using the stack frame for the containing function to |
| // save/restore registers, we can't keep anything live in regs across |
| // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon |
| // when we get here from a longjmp(). We force everything out of registers |
| // except for our own input by listing the relevant registers in Defs. By |
| // doing so, we also cause the prologue/epilogue code to actively preserve |
| // all of the callee-saved resgisters, which is exactly what we want. |
| // $val is a scratch register for our use. |
| let Defs = |
| [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR, |
| Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15], |
| hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1, |
| usesCustomInserter = 1 in { |
| def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val), |
| AddrModeNone, 0, NoItinerary, "", "", |
| [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>, |
| Requires<[IsThumb2, HasVFP2]>; |
| } |
| |
| let Defs = |
| [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ], |
| hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1, |
| usesCustomInserter = 1 in { |
| def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val), |
| AddrModeNone, 0, NoItinerary, "", "", |
| [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>, |
| Requires<[IsThumb2, NoVFP]>; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Control-Flow Instructions |
| // |
| |
| // FIXME: remove when we have a way to marking a MI with these properties. |
| // FIXME: Should pc be an implicit operand like PICADD, etc? |
| let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1, |
| hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in |
| def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, |
| reglist:$regs, variable_ops), |
| 4, IIC_iLoad_mBr, [], |
| (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>, |
| RegConstraint<"$Rn = $wb">; |
| |
| let isBranch = 1, isTerminator = 1, isBarrier = 1 in { |
| let isPredicable = 1 in |
| def t2B : T2I<(outs), (ins uncondbrtarget:$target), IIC_Br, |
| "b", ".w\t$target", |
| [(br bb:$target)]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{15-14} = 0b10; |
| let Inst{12} = 1; |
| |
| bits<24> target; |
| let Inst{26} = target{19}; |
| let Inst{11} = target{18}; |
| let Inst{13} = target{17}; |
| let Inst{25-16} = target{20-11}; |
| let Inst{10-0} = target{10-0}; |
| let DecoderMethod = "DecodeT2BInstruction"; |
| } |
| |
| let isNotDuplicable = 1, isIndirectBranch = 1 in { |
| def t2BR_JT : t2PseudoInst<(outs), |
| (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id), |
| 0, IIC_Br, |
| [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>; |
| |
| // FIXME: Add a non-pc based case that can be predicated. |
| def t2TBB_JT : t2PseudoInst<(outs), |
| (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>; |
| |
| def t2TBH_JT : t2PseudoInst<(outs), |
| (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>; |
| |
| def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br, |
| "tbb", "\t$addr", []> { |
| bits<4> Rn; |
| bits<4> Rm; |
| let Inst{31-20} = 0b111010001101; |
| let Inst{19-16} = Rn; |
| let Inst{15-5} = 0b11110000000; |
| let Inst{4} = 0; // B form |
| let Inst{3-0} = Rm; |
| |
| let DecoderMethod = "DecodeThumbTableBranch"; |
| } |
| |
| def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br, |
| "tbh", "\t$addr", []> { |
| bits<4> Rn; |
| bits<4> Rm; |
| let Inst{31-20} = 0b111010001101; |
| let Inst{19-16} = Rn; |
| let Inst{15-5} = 0b11110000000; |
| let Inst{4} = 1; // H form |
| let Inst{3-0} = Rm; |
| |
| let DecoderMethod = "DecodeThumbTableBranch"; |
| } |
| } // isNotDuplicable, isIndirectBranch |
| |
| } // isBranch, isTerminator, isBarrier |
| |
| // FIXME: should be able to write a pattern for ARMBrcond, but can't use |
| // a two-value operand where a dag node expects ", "two operands. :( |
| let isBranch = 1, isTerminator = 1 in |
| def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br, |
| "b", ".w\t$target", |
| [/*(ARMbrcond bb:$target, imm:$cc)*/]> { |
| let Inst{31-27} = 0b11110; |
| let Inst{15-14} = 0b10; |
| let Inst{12} = 0; |
| |
| bits<4> p; |
| let Inst{25-22} = p; |
| |
| bits<21> target; |
| let Inst{26} = target{20}; |
| let Inst{11} = target{19}; |
| let Inst{13} = target{18}; |
| let Inst{21-16} = target{17-12}; |
| let Inst{10-0} = target{11-1}; |
| |
| let DecoderMethod = "DecodeThumb2BCCInstruction"; |
| } |
| |
| // Tail calls. The IOS version of thumb tail calls uses a t2 branch, so |
| // it goes here. |
| let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in { |
| // IOS version. |
| let Uses = [SP] in |
| def tTAILJMPd: tPseudoExpand<(outs), |
| (ins uncondbrtarget:$dst, pred:$p), |
| 4, IIC_Br, [], |
| (t2B uncondbrtarget:$dst, pred:$p)>, |
| Requires<[IsThumb2, IsIOS]>; |
| } |
| |
| // IT block |
| let Defs = [ITSTATE] in |
| def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask), |
| AddrModeNone, 2, IIC_iALUx, |
| "it$mask\t$cc", "", []> { |
| // 16-bit instruction. |
| let Inst{31-16} = 0x0000; |
| let Inst{15-8} = 0b10111111; |
| |
| bits<4> cc; |
| bits<4> mask; |
| let Inst{7-4} = cc; |
| let Inst{3-0} = mask; |
| |
| let DecoderMethod = "DecodeIT"; |
| } |
| |
| // Branch and Exchange Jazelle -- for disassembly only |
| // Rm = Inst{19-16} |
| def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []> { |
| bits<4> func; |
| let Inst{31-27} = 0b11110; |
| let Inst{26} = 0; |
| let Inst{25-20} = 0b111100; |
| let Inst{19-16} = func; |
| let Inst{15-0} = 0b1000111100000000; |
| } |
| |
| // Compare and branch on zero / non-zero |
| let isBranch = 1, isTerminator = 1 in { |
| def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br, |
| "cbz\t$Rn, $target", []>, |
| T1Misc<{0,0,?,1,?,?,?}>, |
| Requires<[IsThumb2]> { |
| // A8.6.27 |
| bits<6> target; |
| bits<3> Rn; |
| let Inst{9} = target{5}; |
| let Inst{7-3} = target{4-0}; |
| let Inst{2-0} = Rn; |
| } |
| |
| def tCBNZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br, |
| "cbnz\t$Rn, $target", []>, |
| T1Misc<{1,0,?,1,?,?,?}>, |
| Requires<[IsThumb2]> { |
| // A8.6.27 |
| bits<6> target; |
| bits<3> Rn; |
| let Inst{9} = target{5}; |
| let Inst{7-3} = target{4-0}; |
| let Inst{2-0} = Rn; |
| } |
| } |
| |
| |
| // Change Processor State is a system instruction. |
| // FIXME: Since the asm parser has currently no clean way to handle optional |
| // operands, create 3 versions of the same instruction. Once there's a clean |
| // framework to represent optional operands, change this behavior. |
| class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary, |
| !strconcat("cps", asm_op), []> { |
| bits<2> imod; |
| bits<3> iflags; |
| bits<5> mode; |
| bit M; |
| |
| let Inst{31-27} = 0b11110; |
| let Inst{26} = 0; |
| let Inst{25-20} = 0b111010; |
| let Inst{19-16} = 0b1111; |
| let Inst{15-14} = 0b10; |
| let Inst{12} = 0; |
| let Inst{10-9} = imod; |
| let Inst{8} = M; |
| let Inst{7-5} = iflags; |
| let Inst{4-0} = mode; |
| let DecoderMethod = "DecodeT2CPSInstruction"; |
| } |
| |
| let M = 1 in |
| def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode), |
| "$imod.w\t$iflags, $mode">; |
| let mode = 0, M = 0 in |
| def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags), |
| "$imod.w\t$iflags">; |
| let imod = 0, iflags = 0, M = 1 in |
| def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">; |
| |
| // A6.3.4 Branches and miscellaneous control |
| // Table A6-14 Change Processor State, and hint instructions |
| def t2HINT : T2I<(outs), (ins imm0_255:$imm), NoItinerary, "hint", "\t$imm",[]>{ |
| bits<8> imm; |
| let Inst{31-8} = 0b111100111010111110000000; |
| let Inst{7-0} = imm; |
| } |
| |
| def : t2InstAlias<"hint$p.w $imm", (t2HINT imm0_255:$imm, pred:$p)>; |
| def : t2InstAlias<"nop$p.w", (t2HINT 0, pred:$p)>; |
| def : t2InstAlias<"yield$p.w", (t2HINT 1, pred:$p)>; |
| def : t2InstAlias<"wfe$p.w", (t2HINT 2, pred:$p)>; |
| def : t2InstAlias<"wfi$p.w", (t2HINT 3, pred:$p)>; |
| def : t2InstAlias<"sev$p.w", (t2HINT 4, pred:$p)>; |
| |
| def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> { |
| bits<4> opt; |
| let Inst{31-20} = 0b111100111010; |
| let Inst{19-16} = 0b1111; |
| let Inst{15-8} = 0b10000000; |
| let Inst{7-4} = 0b1111; |
| let Inst{3-0} = opt; |
| } |
| |
| // Secure Monitor Call is a system instruction. |
| // Option = Inst{19-16} |
| def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt", []> { |
| let Inst{31-27} = 0b11110; |
| let Inst{26-20} = 0b1111111; |
| let Inst{15-12} = 0b1000; |
| |
| bits<4> opt; |
| let Inst{19-16} = opt; |
| } |
| |
| class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| bits<5> mode; |
| let Inst{31-25} = 0b1110100; |
| let Inst{24-23} = Op; |
| let Inst{22} = 0; |
| let Inst{21} = W; |
| let Inst{20-16} = 0b01101; |
| let Inst{15-5} = 0b11000000000; |
| let Inst{4-0} = mode{4-0}; |
| } |
| |
| // Store Return State is a system instruction. |
| def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary, |
| "srsdb", "\tsp!, $mode", []>; |
| def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary, |
| "srsdb","\tsp, $mode", []>; |
| def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary, |
| "srsia","\tsp!, $mode", []>; |
| def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary, |
| "srsia","\tsp, $mode", []>; |
| |
| |
| def : t2InstAlias<"srsdb${p} $mode", (t2SRSDB imm0_31:$mode, pred:$p)>; |
| def : t2InstAlias<"srsdb${p} $mode!", (t2SRSDB_UPD imm0_31:$mode, pred:$p)>; |
| |
| def : t2InstAlias<"srsia${p} $mode", (t2SRSIA imm0_31:$mode, pred:$p)>; |
| def : t2InstAlias<"srsia${p} $mode!", (t2SRSIA_UPD imm0_31:$mode, pred:$p)>; |
| |
| // Return From Exception is a system instruction. |
| class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin, |
| string opc, string asm, list<dag> pattern> |
| : T2I<oops, iops, itin, opc, asm, pattern> { |
| let Inst{31-20} = op31_20{11-0}; |
| |
| bits<4> Rn; |
| let Inst{19-16} = Rn; |
| let Inst{15-0} = 0xc000; |
| } |
| |
| def t2RFEDBW : T2RFE<0b111010000011, |
| (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!", |
| [/* For disassembly only; pattern left blank */]>; |
| def t2RFEDB : T2RFE<0b111010000001, |
| (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn", |
| [/* For disassembly only; pattern left blank */]>; |
| def t2RFEIAW : T2RFE<0b111010011011, |
| (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!", |
| [/* For disassembly only; pattern left blank */]>; |
| def t2RFEIA : T2RFE<0b111010011001, |
| (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn", |
| [/* For disassembly only; pattern left blank */]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Non-Instruction Patterns |
| // |
| |
| // 32-bit immediate using movw + movt. |
| // This is a single pseudo instruction to make it re-materializable. |
| // FIXME: Remove this when we can do generalized remat. |
| let isReMaterializable = 1, isMoveImm = 1 in |
| def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2, |
| [(set rGPR:$dst, (i32 imm:$src))]>, |
| Requires<[IsThumb, HasV6T2]>; |
| |
| // Pseudo instruction that combines movw + movt + add pc (if pic). |
| // It also makes it possible to rematerialize the instructions. |
| // FIXME: Remove this when we can do generalized remat and when machine licm |
| // can properly the instructions. |
| let isReMaterializable = 1 in { |
| def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr), |
| IIC_iMOVix2addpc, |
| [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>, |
| Requires<[IsThumb2, UseMovt]>; |
| |
| def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr), |
| IIC_iMOVix2, |
| [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>, |
| Requires<[IsThumb2, UseMovt]>; |
| } |
| |
| // ConstantPool, GlobalAddress, and JumpTable |
| def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>, |
| Requires<[IsThumb2, DontUseMovt]>; |
| def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>; |
| def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>, |
| Requires<[IsThumb2, UseMovt]>; |
| |
| def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id), |
| (t2LEApcrelJT tjumptable:$dst, imm:$id)>; |
| |
| // Pseudo instruction that combines ldr from constpool and add pc. This should |
| // be expanded into two instructions late to allow if-conversion and |
| // scheduling. |
| let canFoldAsLoad = 1, isReMaterializable = 1 in |
| def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp), |
| IIC_iLoadiALU, |
| [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)), |
| imm:$cp))]>, |
| Requires<[IsThumb2]>; |
| |
| // Pseudo isntruction that combines movs + predicated rsbmi |
| // to implement integer ABS |
| let usesCustomInserter = 1, Defs = [CPSR] in { |
| def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src), |
| NoItinerary, []>, Requires<[IsThumb2]>; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Coprocessor load/store -- for disassembly only |
| // |
| class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm> |
| : T2I<oops, iops, NoItinerary, opc, asm, []> { |
| let Inst{31-28} = op31_28; |
| let Inst{27-25} = 0b110; |
| } |
| |
| multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm> { |
| def _OFFSET : T2CI<op31_28, |
| (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr), |
| asm, "\t$cop, $CRd, $addr"> { |
| bits<13> addr; |
| bits<4> cop; |
| bits<4> CRd; |
| let Inst{24} = 1; // P = 1 |
| let Inst{23} = addr{8}; |
| let Inst{22} = Dbit; |
| let Inst{21} = 0; // W = 0 |
| let Inst{20} = load; |
| let Inst{19-16} = addr{12-9}; |
| let Inst{15-12} = CRd; |
| let Inst{11-8} = cop; |
| let Inst{7-0} = addr{7-0}; |
| let DecoderMethod = "DecodeCopMemInstruction"; |
| } |
| def _PRE : T2CI<op31_28, |
| (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr), |
| asm, "\t$cop, $CRd, $addr!"> { |
| bits<13> addr; |
| bits<4> cop; |
| bits<4> CRd; |
| let Inst{24} = 1; // P = 1 |
| let Inst{23} = addr{8}; |
| let Inst{22} = Dbit; |
| let Inst{21} = 1; // W = 1 |
| let Inst{20} = load; |
| let Inst{19-16} = addr{12-9}; |
| let Inst{15-12} = CRd; |
| let Inst{11-8} = cop; |
| let Inst{7-0} = addr{7-0}; |
| let DecoderMethod = "DecodeCopMemInstruction"; |
| } |
| def _POST: T2CI<op31_28, |
| (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr, |
| postidx_imm8s4:$offset), |
| asm, "\t$cop, $CRd, $addr, $offset"> { |
| bits<9> offset; |
| bits<4> addr; |
| bits<4> cop; |
| bits<4> CRd; |
| let Inst{24} = 0; // P = 0 |
| let Inst{23} = offset{8}; |
| let Inst{22} = Dbit; |
| let Inst{21} = 1; // W = 1 |
| let Inst{20} = load; |
| let Inst{19-16} = addr; |
| let Inst{15-12} = CRd; |
| let Inst{11-8} = cop; |
| let Inst{7-0} = offset{7-0}; |
| let DecoderMethod = "DecodeCopMemInstruction"; |
| } |
| def _OPTION : T2CI<op31_28, (outs), |
| (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr, |
| coproc_option_imm:$option), |
| asm, "\t$cop, $CRd, $addr, $option"> { |
| bits<8> option; |
| bits<4> addr; |
| bits<4> cop; |
| bits<4> CRd; |
| let Inst{24} = 0; // P = 0 |
| let Inst{23} = 1; // U = 1 |
| let Inst{22} = Dbit; |
| let Inst{21} = 0; // W = 0 |
| let Inst{20} = load; |
| let Inst{19-16} = addr; |
| let Inst{15-12} = CRd; |
| let Inst{11-8} = cop; |
| let Inst{7-0} = option; |
| let DecoderMethod = "DecodeCopMemInstruction"; |
| } |
| } |
| |
| defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc">; |
| defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl">; |
| defm t2STC : t2LdStCop<0b1110, 0, 0, "stc">; |
| defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl">; |
| defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2">; |
| defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">; |
| defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">; |
| defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Move between special register and ARM core register -- for disassembly only |
| // |
| // Move to ARM core register from Special Register |
| |
| // A/R class MRS. |
| // |
| // A/R class can only move from CPSR or SPSR. |
| def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr", |
| []>, Requires<[IsThumb2,IsARClass]> { |
| bits<4> Rd; |
| let Inst{31-12} = 0b11110011111011111000; |
| let Inst{11-8} = Rd; |
| let Inst{7-0} = 0b0000; |
| } |
| |
| def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>; |
| |
| def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr", |
| []>, Requires<[IsThumb2,IsARClass]> { |
| bits<4> Rd; |
| let Inst{31-12} = 0b11110011111111111000; |
| let Inst{11-8} = Rd; |
| let Inst{7-0} = 0b0000; |
| } |
| |
| // M class MRS. |
| // |
| // This MRS has a mask field in bits 7-0 and can take more values than |
| // the A/R class (a full msr_mask). |
| def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary, |
| "mrs", "\t$Rd, $mask", []>, |
| Requires<[IsThumb,IsMClass]> { |
| bits<4> Rd; |
| bits<8> mask; |
| let Inst{31-12} = 0b11110011111011111000; |
| let Inst{11-8} = Rd; |
| let Inst{19-16} = 0b1111; |
| let Inst{7-0} = mask; |
| } |
| |
| |
| // Move from ARM core register to Special Register |
| // |
| // A/R class MSR. |
| // |
| // No need to have both system and application versions, the encodings are the |
| // same and the assembly parser has no way to distinguish between them. The mask |
| // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains |
| // the mask with the fields to be accessed in the special register. |
| def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn), |
| NoItinerary, "msr", "\t$mask, $Rn", []>, |
| Requires<[IsThumb2,IsARClass]> { |
| bits<5> mask; |
| bits<4> Rn; |
| let Inst{31-21} = 0b11110011100; |
| let Inst{20} = mask{4}; // R Bit |
| let Inst{19-16} = Rn; |
| let Inst{15-12} = 0b1000; |
| let Inst{11-8} = mask{3-0}; |
| let Inst{7-0} = 0; |
| } |
| |
| // M class MSR. |
| // |
| // Move from ARM core register to Special Register |
| def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn), |
| NoItinerary, "msr", "\t$SYSm, $Rn", []>, |
| Requires<[IsThumb,IsMClass]> { |
| bits<12> SYSm; |
| bits<4> Rn; |
| let Inst{31-21} = 0b11110011100; |
| let Inst{20} = 0b0; |
| let Inst{19-16} = Rn; |
| let Inst{15-12} = 0b1000; |
| let Inst{11-0} = SYSm; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Move between coprocessor and ARM core register |
| // |
| |
| class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops, |
| list<dag> pattern> |
| : T2Cop<Op, oops, iops, |
| !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"), |
| pattern> { |
| let Inst{27-24} = 0b1110; |
| let Inst{20} = direction; |
| let Inst{4} = 1; |
| |
| bits<4> Rt; |
| bits<4> cop; |
| bits<3> opc1; |
| bits<3> opc2; |
| bits<4> CRm; |
| bits<4> CRn; |
| |
| let Inst{15-12} = Rt; |
| let Inst{11-8} = cop; |
| let Inst{23-21} = opc1; |
| let Inst{7-5} = opc2; |
| let Inst{3-0} = CRm; |
| let Inst{19-16} = CRn; |
| } |
| |
| class t2MovRRCopro<bits<4> Op, string opc, bit direction, |
| list<dag> pattern = []> |
| : T2Cop<Op, (outs), |
| (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm), |
| !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> { |
| let Inst{27-24} = 0b1100; |
| let Inst{23-21} = 0b010; |
| let Inst{20} = direction; |
| |
| bits<4> Rt; |
| bits<4> Rt2; |
| bits<4> cop; |
| bits<4> opc1; |
| bits<4> CRm; |
| |
| let Inst{15-12} = Rt; |
| let Inst{19-16} = Rt2; |
| let Inst{11-8} = cop; |
| let Inst{7-4} = opc1; |
| let Inst{3-0} = CRm; |
| } |
| |
| /* from ARM core register to coprocessor */ |
| def t2MCR : t2MovRCopro<0b1110, "mcr", 0, |
| (outs), |
| (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn, |
| c_imm:$CRm, imm0_7:$opc2), |
| [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn, |
| imm:$CRm, imm:$opc2)]>; |
| def : t2InstAlias<"mcr $cop, $opc1, $Rt, $CRn, $CRm", |
| (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn, |
| c_imm:$CRm, 0)>; |
| def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0, |
| (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn, |
| c_imm:$CRm, imm0_7:$opc2), |
| [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn, |
| imm:$CRm, imm:$opc2)]>; |
| def : t2InstAlias<"mcr2 $cop, $opc1, $Rt, $CRn, $CRm", |
| (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn, |
| c_imm:$CRm, 0)>; |
| |
| /* from coprocessor to ARM core register */ |
| def t2MRC : t2MovRCopro<0b1110, "mrc", 1, |
| (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, |
| c_imm:$CRm, imm0_7:$opc2), []>; |
| def : t2InstAlias<"mrc $cop, $opc1, $Rt, $CRn, $CRm", |
| (t2MRC GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, |
| c_imm:$CRm, 0)>; |
| |
| def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1, |
| (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, |
| c_imm:$CRm, imm0_7:$opc2), []>; |
| def : t2InstAlias<"mrc2 $cop, $opc1, $Rt, $CRn, $CRm", |
| (t2MRC2 GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn, |
| c_imm:$CRm, 0)>; |
| |
| def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2), |
| (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>; |
| |
| def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2), |
| (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>; |
| |
| |
| /* from ARM core register to coprocessor */ |
| def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0, |
| [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2, |
| imm:$CRm)]>; |
| def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0, |
| [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt, |
| GPR:$Rt2, imm:$CRm)]>; |
| /* from coprocessor to ARM core register */ |
| def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>; |
| |
| def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>; |
| |
| //===----------------------------------------------------------------------===// |
| // Other Coprocessor Instructions. |
| // |
| |
| def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1, |
| c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2), |
| "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2", |
| [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn, |
| imm:$CRm, imm:$opc2)]> { |
| let Inst{27-24} = 0b1110; |
| |
| bits<4> opc1; |
| bits<4> CRn; |
| bits<4> CRd; |
| bits<4> cop; |
| bits<3> opc2; |
| bits<4> CRm; |
| |
| let Inst{3-0} = CRm; |
| let Inst{4} = 0; |
| let Inst{7-5} = opc2; |
| let Inst{11-8} = cop; |
| let Inst{15-12} = CRd; |
| let Inst{19-16} = CRn; |
| let Inst{23-20} = opc1; |
| } |
| |
| def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1, |
| c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2), |
| "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2", |
| [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn, |
| imm:$CRm, imm:$opc2)]> { |
| let Inst{27-24} = 0b1110; |
| |
| bits<4> opc1; |
| bits<4> CRn; |
| bits<4> CRd; |
| bits<4> cop; |
| bits<3> opc2; |
| bits<4> CRm; |
| |
| let Inst{3-0} = CRm; |
| let Inst{4} = 0; |
| let Inst{7-5} = opc2; |
| let Inst{11-8} = cop; |
| let Inst{15-12} = CRd; |
| let Inst{19-16} = CRn; |
| let Inst{23-20} = opc1; |
| } |
| |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Non-Instruction Patterns |
| // |
| |
| // SXT/UXT with no rotate |
| let AddedComplexity = 16 in { |
| def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>, |
| Requires<[IsThumb2]>; |
| def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>, |
| Requires<[IsThumb2]>; |
| def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)), |
| (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)), |
| (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| } |
| |
| def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>, |
| Requires<[IsThumb2]>; |
| def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>, |
| Requires<[IsThumb2]>; |
| def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)), |
| (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)), |
| (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| |
| // Atomic load/store patterns |
| def : T2Pat<(atomic_load_8 t2addrmode_imm12:$addr), |
| (t2LDRBi12 t2addrmode_imm12:$addr)>; |
| def : T2Pat<(atomic_load_8 t2addrmode_negimm8:$addr), |
| (t2LDRBi8 t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(atomic_load_8 t2addrmode_so_reg:$addr), |
| (t2LDRBs t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(atomic_load_16 t2addrmode_imm12:$addr), |
| (t2LDRHi12 t2addrmode_imm12:$addr)>; |
| def : T2Pat<(atomic_load_16 t2addrmode_negimm8:$addr), |
| (t2LDRHi8 t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(atomic_load_16 t2addrmode_so_reg:$addr), |
| (t2LDRHs t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(atomic_load_32 t2addrmode_imm12:$addr), |
| (t2LDRi12 t2addrmode_imm12:$addr)>; |
| def : T2Pat<(atomic_load_32 t2addrmode_negimm8:$addr), |
| (t2LDRi8 t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(atomic_load_32 t2addrmode_so_reg:$addr), |
| (t2LDRs t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(atomic_store_8 t2addrmode_imm12:$addr, GPR:$val), |
| (t2STRBi12 GPR:$val, t2addrmode_imm12:$addr)>; |
| def : T2Pat<(atomic_store_8 t2addrmode_negimm8:$addr, GPR:$val), |
| (t2STRBi8 GPR:$val, t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(atomic_store_8 t2addrmode_so_reg:$addr, GPR:$val), |
| (t2STRBs GPR:$val, t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(atomic_store_16 t2addrmode_imm12:$addr, GPR:$val), |
| (t2STRHi12 GPR:$val, t2addrmode_imm12:$addr)>; |
| def : T2Pat<(atomic_store_16 t2addrmode_negimm8:$addr, GPR:$val), |
| (t2STRHi8 GPR:$val, t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(atomic_store_16 t2addrmode_so_reg:$addr, GPR:$val), |
| (t2STRHs GPR:$val, t2addrmode_so_reg:$addr)>; |
| def : T2Pat<(atomic_store_32 t2addrmode_imm12:$addr, GPR:$val), |
| (t2STRi12 GPR:$val, t2addrmode_imm12:$addr)>; |
| def : T2Pat<(atomic_store_32 t2addrmode_negimm8:$addr, GPR:$val), |
| (t2STRi8 GPR:$val, t2addrmode_negimm8:$addr)>; |
| def : T2Pat<(atomic_store_32 t2addrmode_so_reg:$addr, GPR:$val), |
| (t2STRs GPR:$val, t2addrmode_so_reg:$addr)>; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Assembler aliases |
| // |
| |
| // Aliases for ADC without the ".w" optional width specifier. |
| def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $Rm", |
| (t2ADCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"adc${s}${p} $Rd, $Rn, $ShiftedRm", |
| (t2ADCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm, |
| pred:$p, cc_out:$s)>; |
| |
| // Aliases for SBC without the ".w" optional width specifier. |
| def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $Rm", |
| (t2SBCrr rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"sbc${s}${p} $Rd, $Rn, $ShiftedRm", |
| (t2SBCrs rGPR:$Rd, rGPR:$Rn, t2_so_reg:$ShiftedRm, |
| pred:$p, cc_out:$s)>; |
| |
| // Aliases for ADD without the ".w" optional width specifier. |
| def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm", |
| (t2ADDri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"add${p} $Rd, $Rn, $imm", |
| (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>; |
| def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm", |
| (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm", |
| (t2ADDrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm, |
| pred:$p, cc_out:$s)>; |
| // ... and with the destination and source register combined. |
| def : t2InstAlias<"add${s}${p} $Rdn, $imm", |
| (t2ADDri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"add${p} $Rdn, $imm", |
| (t2ADDri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>; |
| def : t2InstAlias<"add${s}${p} $Rdn, $Rm", |
| (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm", |
| (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm, |
| pred:$p, cc_out:$s)>; |
| |
| // add w/ negative immediates is just a sub. |
| def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm", |
| (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<"add${p} $Rd, $Rn, $imm", |
| (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>; |
| def : t2InstAlias<"add${s}${p} $Rdn, $imm", |
| (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<"add${p} $Rdn, $imm", |
| (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>; |
| |
| def : t2InstAlias<"add${s}${p}.w $Rd, $Rn, $imm", |
| (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<"addw${p} $Rd, $Rn, $imm", |
| (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>; |
| def : t2InstAlias<"add${s}${p}.w $Rdn, $imm", |
| (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p, |
| cc_out:$s)>; |
| def : t2InstAlias<"addw${p} $Rdn, $imm", |
| (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>; |
| |
| |
| // Aliases for SUB without the ".w" optional width specifier. |
| def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm", |
| (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"sub${p} $Rd, $Rn, $imm", |
| (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>; |
| def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm", |
| (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm", |
| (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm, |
| pred:$p, cc_out:$s)>; |
| // ... and with the destination and source register combined. |
| def : t2InstAlias<"sub${s}${p} $Rdn, $imm", |
| (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"sub${p} $Rdn, $imm", |
| (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>; |
| def : t2InstAlias<"sub${s}${p}.w $Rdn, $Rm", |
| (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"sub${s}${p} $Rdn, $Rm", |
| (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm", |
| (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm, |
| pred:$p, cc_out:$s)>; |
| |
| // Alias for compares without the ".w" optional width specifier. |
| def : t2InstAlias<"cmn${p} $Rn, $Rm", |
| (t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>; |
| def : t2InstAlias<"teq${p} $Rn, $Rm", |
| (t2TEQrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>; |
| def : t2InstAlias<"tst${p} $Rn, $Rm", |
| (t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>; |
| |
| // Memory barriers |
| def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb, HasDB]>; |
| def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb, HasDB]>; |
| def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb, HasDB]>; |
| |
| // Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional |
| // width specifier. |
| def : t2InstAlias<"ldr${p} $Rt, $addr", |
| (t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrb${p} $Rt, $addr", |
| (t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrh${p} $Rt, $addr", |
| (t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrsb${p} $Rt, $addr", |
| (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrsh${p} $Rt, $addr", |
| (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>; |
| |
| def : t2InstAlias<"ldr${p} $Rt, $addr", |
| (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrb${p} $Rt, $addr", |
| (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrh${p} $Rt, $addr", |
| (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrsb${p} $Rt, $addr", |
| (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrsh${p} $Rt, $addr", |
| (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>; |
| |
| def : t2InstAlias<"ldr${p} $Rt, $addr", |
| (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrb${p} $Rt, $addr", |
| (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrh${p} $Rt, $addr", |
| (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrsb${p} $Rt, $addr", |
| (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrsh${p} $Rt, $addr", |
| (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>; |
| |
| // Alias for MVN with(out) the ".w" optional width specifier. |
| def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm", |
| (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"mvn${s}${p} $Rd, $Rm", |
| (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm", |
| (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>; |
| |
| // PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the |
| // shift amount is zero (i.e., unspecified). |
| def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm", |
| (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm", |
| (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>, |
| Requires<[HasT2ExtractPack, IsThumb2]>; |
| |
| // PUSH/POP aliases for STM/LDM |
| def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>; |
| def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>; |
| def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>; |
| def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>; |
| |
| // STMIA/STMIA_UPD aliases w/o the optional .w suffix |
| def : t2InstAlias<"stm${p} $Rn, $regs", |
| (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>; |
| def : t2InstAlias<"stm${p} $Rn!, $regs", |
| (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>; |
| |
| // LDMIA/LDMIA_UPD aliases w/o the optional .w suffix |
| def : t2InstAlias<"ldm${p} $Rn, $regs", |
| (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>; |
| def : t2InstAlias<"ldm${p} $Rn!, $regs", |
| (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>; |
| |
| // STMDB/STMDB_UPD aliases w/ the optional .w suffix |
| def : t2InstAlias<"stmdb${p}.w $Rn, $regs", |
| (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>; |
| def : t2InstAlias<"stmdb${p}.w $Rn!, $regs", |
| (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>; |
| |
| // LDMDB/LDMDB_UPD aliases w/ the optional .w suffix |
| def : t2InstAlias<"ldmdb${p}.w $Rn, $regs", |
| (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>; |
| def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs", |
| (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>; |
| |
| // Alias for REV/REV16/REVSH without the ".w" optional width specifier. |
| def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>; |
| def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>; |
| def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>; |
| |
| |
| // Alias for RSB without the ".w" optional width specifier, and with optional |
| // implied destination register. |
| def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm", |
| (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"rsb${s}${p} $Rdn, $imm", |
| (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm", |
| (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm", |
| (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p, |
| cc_out:$s)>; |
| |
| // SSAT/USAT optional shift operand. |
| def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn", |
| (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>; |
| def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn", |
| (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>; |
| |
| // STM w/o the .w suffix. |
| def : t2InstAlias<"stm${p} $Rn, $regs", |
| (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>; |
| |
| // Alias for STR, STRB, and STRH without the ".w" optional |
| // width specifier. |
| def : t2InstAlias<"str${p} $Rt, $addr", |
| (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"strb${p} $Rt, $addr", |
| (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"strh${p} $Rt, $addr", |
| (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>; |
| |
| def : t2InstAlias<"str${p} $Rt, $addr", |
| (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>; |
| def : t2InstAlias<"strb${p} $Rt, $addr", |
| (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>; |
| def : t2InstAlias<"strh${p} $Rt, $addr", |
| (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>; |
| |
| // Extend instruction optional rotate operand. |
| def : t2InstAlias<"sxtab${p} $Rd, $Rn, $Rm", |
| (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"sxtah${p} $Rd, $Rn, $Rm", |
| (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"sxtab16${p} $Rd, $Rn, $Rm", |
| (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>; |
| |
| def : t2InstAlias<"sxtb${p} $Rd, $Rm", |
| (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"sxtb16${p} $Rd, $Rm", |
| (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"sxth${p} $Rd, $Rm", |
| (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"sxtb${p}.w $Rd, $Rm", |
| (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"sxth${p}.w $Rd, $Rm", |
| (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| |
| def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm", |
| (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"uxtah${p} $Rd, $Rn, $Rm", |
| (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"uxtab16${p} $Rd, $Rn, $Rm", |
| (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"uxtb${p} $Rd, $Rm", |
| (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"uxtb16${p} $Rd, $Rm", |
| (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"uxth${p} $Rd, $Rm", |
| (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| |
| def : t2InstAlias<"uxtb${p}.w $Rd, $Rm", |
| (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| def : t2InstAlias<"uxth${p}.w $Rd, $Rm", |
| (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; |
| |
| // Extend instruction w/o the ".w" optional width specifier. |
| def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot", |
| (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>; |
| def : t2InstAlias<"uxtb16${p} $Rd, $Rm$rot", |
| (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>; |
| def : t2InstAlias<"uxth${p} $Rd, $Rm$rot", |
| (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>; |
| |
| def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot", |
| (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>; |
| def : t2InstAlias<"sxtb16${p} $Rd, $Rm$rot", |
| (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>; |
| def : t2InstAlias<"sxth${p} $Rd, $Rm$rot", |
| (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>; |
| |
| |
| // "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like |
| // for isel. |
| def : t2InstAlias<"mov${p} $Rd, $imm", |
| (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>; |
| def : t2InstAlias<"mvn${p} $Rd, $imm", |
| (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>; |
| // Same for AND <--> BIC |
| def : t2InstAlias<"bic${s}${p} $Rd, $Rn, $imm", |
| (t2ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm, |
| pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"bic${s}${p} $Rdn, $imm", |
| (t2ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm, |
| pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"and${s}${p} $Rd, $Rn, $imm", |
| (t2BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm, |
| pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"and${s}${p} $Rdn, $imm", |
| (t2BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm, |
| pred:$p, cc_out:$s)>; |
| // Likewise, "add Rd, t2_so_imm_neg" -> sub |
| def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm", |
| (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, |
| pred:$p, cc_out:$s)>; |
| def : t2InstAlias<"add${s}${p} $Rd, $imm", |
| (t2SUBri GPRnopc:$Rd, GPRnopc:$Rd, t2_so_imm_neg:$imm, |
| pred:$p, cc_out:$s)>; |
| // Same for CMP <--> CMN via t2_so_imm_neg |
| def : t2InstAlias<"cmp${p} $Rd, $imm", |
| (t2CMNri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>; |
| def : t2InstAlias<"cmn${p} $Rd, $imm", |
| (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>; |
| |
| |
| // Wide 'mul' encoding can be specified with only two operands. |
| def : t2InstAlias<"mul${p} $Rn, $Rm", |
| (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>; |
| |
| // "neg" is and alias for "rsb rd, rn, #0" |
| def : t2InstAlias<"neg${s}${p} $Rd, $Rm", |
| (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>; |
| |
| // MOV so_reg assembler pseudos. InstAlias isn't expressive enough for |
| // these, unfortunately. |
| def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift", |
| (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>; |
| def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift", |
| (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>; |
| |
| def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift", |
| (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>; |
| def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift", |
| (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>; |
| |
| // ADR w/o the .w suffix |
| def : t2InstAlias<"adr${p} $Rd, $addr", |
| (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>; |
| |
| // LDR(literal) w/ alternate [pc, #imm] syntax. |
| def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr", |
| (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr", |
| (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr", |
| (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr", |
| (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr", |
| (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| // Version w/ the .w suffix. |
| def : t2InstAlias<"ldr${p}.w $Rt, $addr", |
| (t2LDRpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrb${p}.w $Rt, $addr", |
| (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrh${p}.w $Rt, $addr", |
| (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrsb${p}.w $Rt, $addr", |
| (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| def : t2InstAlias<"ldrsh${p}.w $Rt, $addr", |
| (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>; |
| |
| def : t2InstAlias<"add${p} $Rd, pc, $imm", |
| (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>; |
