[LoongArch] Add definition for LVZ/LBT instructions

[wangleiat]

Summary

This patch defines the LVZ and LBT extension instructions, which
provide enough definitions for llvm-mc and llvm-objdump to correctly
handle these instructions.

It also defines the SCR (Scratchpad Register) register class, which
are used by the LBT extension instructions.

[xen0n]

Thank you for the timely addition so we would be able to again ensure a consistent support baseline between binutils 2.41 and LLVM 17.

As for the LBT x86 assists at least, while we don't (currently) plan to leverage them in regular codegen (meaning the current modeling is kinda enough), it could be more accurate to additionally define the X86FLAGS register (or its correct official name if I remembered it wrong) so all the NoDst insns have their actual side effect properly accounted for. I don't yet know enough about the ARM assists to speak with confidence whether it's the same for those.

llvm/lib/Target/LoongArch/LoongArchLBTInstrInfo.td

53–56

These should be marked mayLoad/Store accordingly.

191–194

Ditto.

[wangleiat]

Just adding some comments.

[wangleiat]

llvm/lib/Target/LoongArch/LoongArchLBTInstrInfo.td

53–56

These should be marked mayLoad/Store accordingly.

Thank you for your comments. These attributes has already been set in LOAD_2RI12/STORE_2RI12.
To serve as a reminder, I added some comments.

[xen0n]

Thanks for adding more comments, this now seems good enough! Let's see if others have anything to add.

[wangleiat]

Fixed an error caused by intuition, thank you very much for @xen0n's prompt reminder.

llvm/lib/Target/LoongArch/AsmParser/LoongArchAsmParser.cpp

unsigned LoongArchAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
   case LoongArch::PseudoLA_TLS_LD_LARGE:
   case LoongArch::PseudoLA_TLS_GD_LARGE: {
     unsigned Rd = Inst.getOperand(0).getReg();
     unsigned Rj = Inst.getOperand(1).getReg();
     if (Rd == Rj)
       return Match_RequiresLAORdDifferRj;
     break;
   }
-  case LoongArch::CSRXCHG: {
+  case LoongArch::CSRXCHG:
+  case LoongArch::GCSRXCHG: {
     unsigned Rj = Inst.getOperand(2).getReg();
     if (Rj == LoongArch::R0 || Rj == LoongArch::R1)
       return Match_RequiresOpnd2NotR0R1;
     return Match_Success;
   }
   case LoongArch::BSTRINS_W:
   case LoongArch::BSTRINS_D:
   case LoongArch::BSTRPICK_W:
case Match_InvalidUImm12:
     return generateImmOutOfRangeError(Operands, ErrorInfo, /*Lower=*/0,
                                       /*Upper=*/(1 << 12) - 1);
   case Match_InvalidUImm12ori:
     return generateImmOutOfRangeError(
         Operands, ErrorInfo, /*Lower=*/0,
         /*Upper=*/(1 << 12) - 1,
         "operand must be a symbol with modifier (e.g. %abs_lo12) or an "
         "integer in the range");
+  case Match_InvalidUImm14:
+    return generateImmOutOfRangeError(Operands, ErrorInfo, /*Lower=*/0,
+                                      /*Upper=*/(1 << 14) - 1);
   case Match_InvalidUImm15:
     return generateImmOutOfRangeError(Operands, ErrorInfo, /*Lower=*/0,
                                       /*Upper=*/(1 << 15) - 1);
   case Match_InvalidSImm5:
     return generateImmOutOfRangeError(Operands, ErrorInfo, /*Lower=*/-(1 << 4),
                                       /*Upper=*/(1 << 4) - 1);
   case Match_InvalidSImm8:
     return generateImmOutOfRangeError(Operands, ErrorInfo, /*Lower=*/-(1 << 7),

llvm/lib/Target/LoongArch/Disassembler/LoongArchDisassembler.cpp

static DecodeStatus DecodeLASX256RegisterClass(MCInst &Inst, uint64_t RegNo,
                                                uint64_t Address,
                                                const MCDisassembler *Decoder) {
   if (RegNo >= 32)
     return MCDisassembler::Fail;
   Inst.addOperand(MCOperand::createReg(LoongArch::XR0 + RegNo));
   return MCDisassembler::Success;
 }
 
+static DecodeStatus DecodeSCRRegisterClass(MCInst &Inst, uint64_t RegNo,
+                                           uint64_t Address,
+                                           const MCDisassembler *Decoder) {
+  if (RegNo >= 4)
+    return MCDisassembler::Fail;
+  Inst.addOperand(MCOperand::createReg(LoongArch::SCR0 + RegNo));
+  return MCDisassembler::Success;
+}
+
 template <unsigned N, int P = 0>
 static DecodeStatus decodeUImmOperand(MCInst &Inst, uint64_t Imm,
                                       int64_t Address,
                                       const MCDisassembler *Decoder) {
   assert(isUInt<N>(Imm) && "Invalid immediate");
   Inst.addOperand(MCOperand::createImm(Imm + P));
   return MCDisassembler::Success;
 }

llvm/lib/Target/LoongArch/LoongArchInstrInfo.td

 //===----------------------------------------------------------------------===//
 // Instruction Formats
 //===----------------------------------------------------------------------===//
 
 include "LoongArchInstrFormats.td"
 include "LoongArchFloatInstrFormats.td"
 include "LoongArchLSXInstrFormats.td"
 include "LoongArchLASXInstrFormats.td"
+include "LoongArchLBTInstrFormats.td"
 
 //===----------------------------------------------------------------------===//
 // Instruction Class Templates
 //===----------------------------------------------------------------------===//
 
 let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in {
 class ALU_3R<bits<32> op>
     : Fmt3R<op, (outs GPR:$rd), (ins GPR:$rj, GPR:$rk), "$rd, $rj, $rk">;

 // LSX Instructions
 //===----------------------------------------------------------------------===//
 include "LoongArchLSXInstrInfo.td"
 
 //===----------------------------------------------------------------------===//
 // LASX Instructions
 //===----------------------------------------------------------------------===//
 include "LoongArchLASXInstrInfo.td"
+
+//===----------------------------------------------------------------------===//
+// LVZ Instructions
+//===----------------------------------------------------------------------===//
+include "LoongArchLVZInstrInfo.td"
+
+//===----------------------------------------------------------------------===//
+// LBT Instructions
+//===----------------------------------------------------------------------===//
+include "LoongArchLBTInstrInfo.td"

llvm/lib/Target/LoongArch/LoongArchLBTInstrFormats.td

+// LoongArchLBTInstrFormats.td - LoongArch LBT Instr Formats -*- tablegen -*-=//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+//  Describe LoongArch LBT instructions format
+//
+//  opcode        - operation code.
+//  rd/sd         - destination register operand.
+//  rj/rk/sj      - source register operand.
+//  immN/ptr - immediate data operand.
+//
+//===----------------------------------------------------------------------===//
+
+// 1R-type (no outs)
+// <opcode | rj>
+class NoDstFmt1R<bits<32> op>
+    : LAInst<(outs), (ins GPR:$rj),
+             deriveInsnMnemonic<NAME>.ret, "$rj"> {
+  bits<5> rj;
+
+  let Inst{31-0} = op;
+  let Inst{9-5} = rj;
+}
+
+// 1RI3-type (no outs)
+// <opcode | I3 | rj>
+class NoDstFmt1RI3<bits<32> op>
+    : LAInst<(outs), (ins GPR:$rj, uimm3:$imm3),
+             deriveInsnMnemonic<NAME>.ret, "$rj, $imm3"> {
+  bits<3> imm3;
+  bits<5> rj;
+
+  let Inst{31-0} = op;
+  let Inst{12-10} = imm3;
+  let Inst{9-5} = rj;
+}
+
+// 1RI4-type (no outs)
+// <opcode | I4 | rj>
+class NoDstFmt1RI4<bits<32> op>
+    : LAInst<(outs), (ins GPR:$rj, uimm4:$imm4),
+             deriveInsnMnemonic<NAME>.ret, "$rj, $imm4"> {
+  bits<4> imm4;
+  bits<5> rj;
+
+  let Inst{31-0} = op;
+  let Inst{13-10} = imm4;
+  let Inst{9-5} = rj;
+}
+
+// 1RI4-type
+// <opcode | I4 | rd>
+class Fmt1RI4<bits<32> op>
+    : LAInst<(outs GPR:$rd), (ins uimm4:$imm4),
+             deriveInsnMnemonic<NAME>.ret, "$rd, $imm4"> {
+  bits<4> imm4;
+  bits<5> rd;
+
+  let Inst{31-0} = op;
+  let Inst{13-10} = imm4;
+  let Inst{4-0} = rd;
+}
+
+// 1RI5-type (no outs)
+// <opcode | I5 | rj>
+class NoDstFmt1RI5<bits<32> op>
+    : LAInst<(outs), (ins GPR:$rj, uimm5:$imm5),
+             deriveInsnMnemonic<NAME>.ret, "$rj, $imm5"> {
+  bits<5> imm5;
+  bits<5> rj;
+
+  let Inst{31-0} = op;
+  let Inst{14-10} = imm5;
+  let Inst{9-5} = rj;
+}
+
+// 1RI5I4-type (no outs)
+// <opcode | rd | I5 | I4>
+class NoDstFmt1RI5I4<bits<32> op>
+    : LAInst<(outs), (ins  GPR:$rj, uimm5:$imm5, uimm4:$imm4),
+             deriveInsnMnemonic<NAME>.ret, "$rj, $imm5, $imm4"> {
+  bits<5> imm5;
+  bits<5> rj;
+  bits<4> imm4;
+
+  let Inst{31-0} = op;
+  let Inst{14-10} = imm5;
+  let Inst{9-5} = rj;
+  let Inst{3-0} = imm4;
+}
+
+// 1RI5I8-type
+// <opcode | rd | I5 | I8>
+class Fmt1RI5I8<bits<32> op>
+    : LAInst<(outs GPR:$rd), (ins uimm5:$imm5, uimm8:$imm8),
+             deriveInsnMnemonic<NAME>.ret, "$rd, $imm5, $imm8"> {
+  bits<8> imm8;
+  bits<5> imm5;
+  bits<5> rd;
+
+  let Inst{31-0} = op;
+  let Inst{17-10} = imm8;
+  let Inst{9-5} = imm5;
+  let Inst{4-0} = rd;
+}
+
+// 1RI6-type (no outs)
+// <opcode | I6 | rj>
+class NoDstFmt1RI6<bits<32> op>
+    : LAInst<(outs), (ins GPR:$rj, uimm6:$imm6),
+             deriveInsnMnemonic<NAME>.ret, "$rj, $imm6"> {
+  bits<6> imm6;
+  bits<5> rj;
+
+  let Inst{31-0} = op;
+  let Inst{15-10} = imm6;
+  let Inst{9-5} = rj;
+}
+
+// 1RI8-type
+// <opcode | I8 | rd>
+class Fmt1RI8<bits<32> op>
+    : LAInst<(outs GPR:$rd), (ins uimm8:$imm8),
+             deriveInsnMnemonic<NAME>.ret, "$rd, $imm8"> {
+  bits<8> imm8;
+  bits<5> rd;
+
+  let Inst{31-0} = op;
+  let Inst{17-10} = imm8;
+  let Inst{4-0} = rd;
+}
+
+// 2R-type (no outs)
+// <opcode | rk | rj>
+class NoDstFmt2R<bits<32> op>
+    : LAInst<(outs), (ins GPR:$rj, GPR:$rk),
+             deriveInsnMnemonic<NAME>.ret, "$rj, $rk"> {
+  bits<5> rk;
+  bits<5> rj;
+
+  let Inst{31-0} = op;
+  let Inst{14-10} = rk;
+  let Inst{9-5} = rj;
+}
+
+// 2RI4-type (no outs)
+// <opcode | rk | rj | imm4>
+class NoDstFmt2RI4<bits<32> op>
+    : LAInst<(outs), (ins GPR:$rj, GPR:$rk, uimm4:$imm4),
+             deriveInsnMnemonic<NAME>.ret, "$rj, $rk, $imm4"> {
+  bits<4> imm4;
+  bits<5> rk;
+  bits<5> rj;
+
+  let Inst{31-0} = op;
+  let Inst{14-10} = rk;
+  let Inst{9-5} = rj;
+  let Inst{3-0} = imm4;
+}
+
+// 2RI3-type
+// <opcode | I3 | rj | rd>
+class Fmt2RI3<bits<32> op>
+    : LAInst<(outs GPR:$rd), (ins GPR:$rj, uimm3:$imm3),
+             deriveInsnMnemonic<NAME>.ret, "$rd, $rj, $imm3"> {
+  bits<3> imm3;
+  bits<5> rj;
+  bits<5> rd;
+
+  let Inst{31-0} = op;
+  let Inst{12-10} = imm3;
+  let Inst{9-5} = rj;
+  let Inst{4-0} = rd;
+}
+
+// 2RI4-type
+// <opcode | I4 | rj | rd>
+class Fmt2RI4<bits<32> op>
+    : LAInst<(outs GPR:$rd), (ins GPR:$rj, uimm4:$imm4),
+             deriveInsnMnemonic<NAME>.ret, "$rd, $rj, $imm4"> {
+  bits<4> imm4;
+  bits<5> rj;
+  bits<5> rd;
+
+  let Inst{31-0} = op;
+  let Inst{13-10} = imm4;
+  let Inst{9-5} = rj;
+  let Inst{4-0} = rd;
+}
+
+// <opcode | rj | sd>
+class FmtGR2SCR<bits<32> op>
+    : LAInst<(outs SCR:$sd), (ins GPR:$rj), deriveInsnMnemonic<NAME>.ret,
+             "$sd, $rj"> {
+  bits<5> rj;
+  bits<2> sd;
+
+  let Inst{31-0} = op;
+  let Inst{9-5} = rj;
+  let Inst{1-0} = sd;
+}
+
+// <opcode | sj | rd>
+class FmtSCR2GR<bits<32> op>
+    : LAInst<(outs GPR:$rd), (ins SCR:$sj), deriveInsnMnemonic<NAME>.ret,
+             "$rd, $sj"> {
+  bits<2> sj;
+  bits<5> rd;
+
+  let Inst{31-0} = op;
+  let Inst{6-5} = sj;
+  let Inst{4-0} = rd;
+}
+
+// <opcode | I21[15:0] | I21[20:16]>
+class FmtJISCR<bits<32> op>
+    : LAInst<(outs), (ins simm21_lsl2:$imm21), deriveInsnMnemonic<NAME>.ret,
+              "$imm21"> {
+  bits<21> imm21;
+  bits<5> rj;
+
+  let Inst{31-0} = op;
+  let Inst{25-10} = imm21{15-0};
+  let Inst{4-0} = imm21{20-16};
+}
+
+// <opcode | rd>
+class FmtMFTOP<bits<32> op>
+    : LAInst<(outs GPR:$rd), (ins), deriveInsnMnemonic<NAME>.ret,
+             "$rd"> {
+  bits<5> rd;
+
+  let Inst{31-0} = op;
+  let Inst{4-0} = rd;
+}
+
+// <opcode | ptr>
+class FmtMTTOP<bits<32> op>
+    : LAInst<(outs), (ins uimm3:$ptr), deriveInsnMnemonic<NAME>.ret,
+             "$ptr"> {
+  bits<3> ptr;
+
+  let Inst{31-0} = op;
+  let Inst{7-5} = ptr;
+}

llvm/lib/Target/LoongArch/LoongArchLBTInstrInfo.td

+//===- LoongArchLBTInstrInfo.td - LoongArch LBT instructions -*- tablegen -*-=//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file describes the LBT extension instructions.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// Instructions
+//===----------------------------------------------------------------------===//
+
+let hasSideEffects = 0, mayLoad = 0, mayStore = 0, Predicates = [HasExtLBT] in {
+
+def MOVGR2SCR : FmtGR2SCR<0x00000800>;
+def MOVSCR2GR : FmtSCR2GR<0x00000c00>;
+
+def JISCR0 : FmtJISCR<0x48000200>;
+def JISCR1 : FmtJISCR<0x48000300>;
+
+def ADDU12I_W : ALU_2RI5<0x00290000, simm5>;
+
+def ADC_B : ALU_3R<0x00300000>;
+def ADC_H : ALU_3R<0x00308000>;
+def ADC_W : ALU_3R<0x00310000>;
+
+def SBC_B : ALU_3R<0x00320000>;
+def SBC_H : ALU_3R<0x00328000>;
+def SBC_W : ALU_3R<0x00330000>;
+
+def ROTR_B : ALU_3R<0x001a0000>;
+def ROTR_H : ALU_3R<0x001a8000>;
+
+def ROTRI_B : Fmt2RI3<0x004c2000>;
+def ROTRI_H : Fmt2RI4<0x004c4000>;
+
+def RCR_B : ALU_3R<0x00340000>;
+def RCR_H : ALU_3R<0x00348000>;
+def RCR_W : ALU_3R<0x00350000>;
+
+def RCRI_B : Fmt2RI3<0x00502000>;
+def RCRI_H : Fmt2RI4<0x00504000>;
+def RCRI_W : ALU_2RI5<0x00508000, uimm5>;
+
+def FCVT_UD_D : FP_CONV<0x0114e400>;
+def FCVT_LD_D : FP_CONV<0x0114e000>;
+def FCVT_D_LD : FP_ALU_3R<0x01150000>;
+
+def LDL_W : LOAD_2RI12<0x2e000000>;
+def LDR_W : LOAD_2RI12<0x2e400000>;
+def STL_W : STORE_2RI12<0x2f000000>;
+def STR_W : STORE_2RI12<0x2f400000>;
+
+def X86ADC_B : NoDstFmt2R<0x003f000c>;
+def X86ADC_H : NoDstFmt2R<0x003f000d>;
+def X86ADC_W : NoDstFmt2R<0x003f000e>;
+def X86ADD_B : NoDstFmt2R<0x003f0004>;
+def X86ADD_H : NoDstFmt2R<0x003f0005>;
+def X86ADD_W : NoDstFmt2R<0x003f0006>;
+
+def X86INC_B : NoDstFmt1R<0x00008000>;
+def X86INC_H : NoDstFmt1R<0x00008001>;
+def X86INC_W : NoDstFmt1R<0x00008002>;
+
+def X86SBC_B : NoDstFmt2R<0x003f0010>;
+def X86SBC_H : NoDstFmt2R<0x003f0011>;
+def X86SBC_W : NoDstFmt2R<0x003f0012>;
+def X86SUB_B : NoDstFmt2R<0x003f0008>;
+def X86SUB_H : NoDstFmt2R<0x003f0009>;
+def X86SUB_W : NoDstFmt2R<0x003f000a>;
+
+def X86DEC_B : NoDstFmt1R<0x00008004>;
+def X86DEC_H : NoDstFmt1R<0x00008005>;
+def X86DEC_W : NoDstFmt1R<0x00008006>;
+
+def X86AND_B : NoDstFmt2R<0x003f8010>;
+def X86AND_H : NoDstFmt2R<0x003f8011>;
+def X86AND_W : NoDstFmt2R<0x003f8012>;
+
+def X86OR_B : NoDstFmt2R<0x003f8014>;
+def X86OR_H : NoDstFmt2R<0x003f8015>;
+def X86OR_W : NoDstFmt2R<0x003f8016>;
+
+def X86XOR_B : NoDstFmt2R<0x003f8018>;
+def X86XOR_H : NoDstFmt2R<0x003f8019>;
+def X86XOR_W : NoDstFmt2R<0x003f801a>;
+
+def X86MUL_B : NoDstFmt2R<0x003e8000>;
+def X86MUL_H : NoDstFmt2R<0x003e8001>;
+def X86MUL_W : NoDstFmt2R<0x003e8002>;
+def X86MUL_BU : NoDstFmt2R<0x003e8004>;
+def X86MUL_HU : NoDstFmt2R<0x003e8005>;
+
+def X86RCL_B : NoDstFmt2R<0x003f800c>;
+def X86RCL_H : NoDstFmt2R<0x003f800d>;
+def X86RCL_W : NoDstFmt2R<0x003f800e>;
+def X86RCLI_B : NoDstFmt1RI3<0x00542018>;
+def X86RCLI_H : NoDstFmt1RI4<0x00544019>;
+def X86RCLI_W : NoDstFmt1RI5<0x0054801a>;
+
+def X86RCR_B : NoDstFmt2R<0x003f8008>;
+def X86RCR_H : NoDstFmt2R<0x003f8009>;
+def X86RCR_W : NoDstFmt2R<0x003f800a>;
+def X86RCRI_B : NoDstFmt1RI3<0x00542010>;
+def X86RCRI_H : NoDstFmt1RI4<0x00544011>;
+def X86RCRI_W : NoDstFmt1RI5<0x00548012>;
+
+def X86ROTL_B : NoDstFmt2R<0x003f8004>;
+def X86ROTL_H : NoDstFmt2R<0x003f8005>;
+def X86ROTL_W : NoDstFmt2R<0x003f8006>;
+def X86ROTLI_B : NoDstFmt1RI3<0x00542014>;
+def X86ROTLI_H : NoDstFmt1RI4<0x00544015>;
+def X86ROTLI_W : NoDstFmt1RI5<0x00548016>;
+
+def X86ROTR_B : NoDstFmt2R<0x003f8000>;
+def X86ROTR_H : NoDstFmt2R<0x003f8001>;
+def X86ROTR_W : NoDstFmt2R<0x003f8003>;
+def X86ROTRI_B : NoDstFmt1RI3<0x0054200c>;
+def X86ROTRI_H : NoDstFmt1RI4<0x0054400d>;
+def X86ROTRI_W : NoDstFmt1RI5<0x0054800e>;
+
+def X86SLL_B : NoDstFmt2R<0x003f0014>;
+def X86SLL_H : NoDstFmt2R<0x003f0015>;
+def X86SLL_W : NoDstFmt2R<0x003f0016>;
+def X86SLLI_B : NoDstFmt1RI3<0x00542000>;
+def X86SLLI_H : NoDstFmt1RI4<0x00544001>;
+def X86SLLI_W : NoDstFmt1RI5<0x00548002>;
+
+def X86SRL_B : NoDstFmt2R<0x003f0018>;
+def X86SRL_H : NoDstFmt2R<0x003f0019>;
+def X86SRL_W : NoDstFmt2R<0x003f001a>;
+def X86SRLI_B : NoDstFmt1RI3<0x00542004>;
+def X86SRLI_H : NoDstFmt1RI4<0x00544005>;
+def X86SRLI_W : NoDstFmt1RI5<0x00548006>;
+
+def X86SRA_B : NoDstFmt2R<0x003f001c>;
+def X86SRA_H : NoDstFmt2R<0x003f001d>;
+def X86SRA_W : NoDstFmt2R<0x003f001e>;
+def X86SRAI_B : NoDstFmt1RI3<0x00542008>;
+def X86SRAI_H : NoDstFmt1RI4<0x00544009>;
+def X86SRAI_W : NoDstFmt1RI5<0x0054800a>;
+
+def SETX86J : Fmt1RI4<0x00368000>;
+def SETX86LOOPE : ALU_2R<0x00007800>;
+def SETX86LOOPNE : ALU_2R<0x00007c00>;
+def X86MFFLAG : Fmt1RI8<0x005c0000>;
+def X86MTFLAG : Fmt1RI8<0x005c0020>;
+def X86MFTOP : FmtMFTOP<0x00007400>;
+def X86MTTOP : FmtMTTOP<0x00007000>;
+
+def X86INCTOP : FmtI32<0x00008009>;
+def X86DECTOP : FmtI32<0x00008029>;
+def X86SETTM : FmtI32<0x00008008>;
+def X86CLRTM : FmtI32<0x00008028>;
+def X86SETTAG : Fmt1RI5I8<0x00580000>;
+
+def ARMADD_W : NoDstFmt2RI4<0x00370010>;
+def ARMSUB_W : NoDstFmt2RI4<0x00378010>;
+def ARMADC_W : NoDstFmt2RI4<0x00380010>;
+def ARMSBC_W : NoDstFmt2RI4<0x00388010>;
+def ARMAND_W : NoDstFmt2RI4<0x00390010>;
+def ARMOR_W : NoDstFmt2RI4<0x00398010>;
+def ARMXOR_W : NoDstFmt2RI4<0x003a0010>;
+def ARMNOT_W : NoDstFmt1RI4<0x003fc01c>;
+def ARMSLL_W : NoDstFmt2RI4<0x003a8010>;
+def ARMSRL_W : NoDstFmt2RI4<0x003b0010>;
+def ARMSRA_W : NoDstFmt2RI4<0x003b8010>;
+def ARMROTR_W : NoDstFmt2RI4<0x003c0010>;
+def ARMSLLI_W : NoDstFmt1RI5I4<0x003c8010>;
+def ARMSRLI_W : NoDstFmt1RI5I4<0x003d0010>;
+def ARMSRAI_W : NoDstFmt1RI5I4<0x003d8010>;
+def ARMROTRI_W : NoDstFmt1RI5I4<0x003e0010>;
+def ARMRRX_W : NoDstFmt1RI4<0x003fc01f>;
+def ARMMOVE : Fmt2RI4<0x00364000>;
+def ARMMOV_W : NoDstFmt1RI4<0x003fc01d>;
+
+def ARMMFFLAG : Fmt1RI8<0x005c0040>;
+def ARMMTFLAG : Fmt1RI8<0x005c0060>;
+def SETARMJ : Fmt1RI4<0x0036c000>;
+
+let Predicates = [IsLA64] in {
+def ADDU12I_D : ALU_2RI5<0x00298000, simm5>;
+def ADC_D : ALU_3R<0x00318000>;
+def SBC_D : ALU_3R<0x00338000>;
+def RCR_D : ALU_3R<0x00358000>;
+def RCRI_D : ALU_2RI6<0x00510000, uimm6>;
+def LDL_D : LOAD_2RI12<0x2e800000>;
+def LDR_D : LOAD_2RI12<0x2ec00000>;
+def STL_D : STORE_2RI12<0x2f800000>;
+def STR_D : STORE_2RI12<0x2fc00000>;
+
+def X86ADC_D : NoDstFmt2R<0x003f000f>;
+def X86ADD_D : NoDstFmt2R<0x003f0007>;
+def X86ADD_WU : NoDstFmt2R<0x003f0000>;
+def X86ADD_DU : NoDstFmt2R<0x003f0001>;
+def X86INC_D : NoDstFmt1R<0x00008003>;
+def X86SBC_D : NoDstFmt2R<0x003f0013>;
+def X86SUB_WU : NoDstFmt2R<0x003f0002>;
+def X86SUB_D : NoDstFmt2R<0x003f000b>;
+def X86SUB_DU : NoDstFmt2R<0x003f0003>;
+def X86DEC_D : NoDstFmt1R<0x00008007>;
+def X86AND_D : NoDstFmt2R<0x003f8013>;
+def X86OR_D : NoDstFmt2R<0x003f8017>;
+def X86XOR_D : NoDstFmt2R<0x003f801b>;
+def X86MUL_D : NoDstFmt2R<0x003e8003>;
+def X86MUL_WU : NoDstFmt2R<0x003e8006>;
+def X86MUL_DU : NoDstFmt2R<0x003e8007>;
+def X86RCL_D : NoDstFmt2R<0x003f800f>;
+def X86RCLI_D : NoDstFmt1RI6<0x0055001b>;
+def X86RCR_D : NoDstFmt2R<0x003f800b>;
+def X86RCRI_D : NoDstFmt1RI6<0x00550013>;
+def X86ROTL_D : NoDstFmt2R<0x003f8007>;
+def X86ROTLI_D : NoDstFmt1RI6<0x00550017>;
+def X86ROTR_D : NoDstFmt2R<0x003f8002>;
+def X86ROTRI_D : NoDstFmt1RI6<0x0055000f>;
+def X86SLL_D : NoDstFmt2R<0x003f0017>;
+def X86SLLI_D : NoDstFmt1RI6<0x00550003>;
+def X86SRL_D : NoDstFmt2R<0x003f001b>;
+def X86SRLI_D : NoDstFmt1RI6<0x00550007>;
+def X86SRA_D : NoDstFmt2R<0x003f001f>;
+def X86SRAI_D : NoDstFmt1RI6<0x0055000b>;
+def ARMMOV_D : NoDstFmt1RI4<0x003fc01e>;
+
+} // Predicates = [IsLA64]
+} // hasSideEffects = 0, mayLoad = 0, mayStore = 0, Predicates = [HasExtLBT]

llvm/lib/Target/LoongArch/LoongArchLVZInstrInfo.td

+//===- LoongArchLVZInstrInfo.td - LoongArch LVZ instructions -*- tablegen -*-=//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file describes the LVZ extension instructions.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// Instructions
+//===----------------------------------------------------------------------===//
+
+let hasSideEffects = 1, mayLoad = 0, mayStore = 0, Predicates = [HasExtLVZ] in {
+
+def GCSRRD : FmtCSR<0x05000000, (outs GPR:$rd), (ins uimm14:$csr_num),
+                    "$rd, $csr_num">;
+
+let Constraints = "$rd = $dst" in {
+def GCSRWR : FmtCSR<0x05000020, (outs GPR:$dst),
+                    (ins GPR:$rd, uimm14:$csr_num), "$rd, $csr_num">;
+def GCSRXCHG : FmtCSRXCHG<0x05000000, (outs GPR:$dst),
+                          (ins GPR:$rd, GPR:$rj, uimm14:$csr_num),
+                          "$rd, $rj, $csr_num">;
+} // Constraints = "$rd = $dst"
+
+def GTLBFLUSH : FmtI32<0x06482401>;
+def HVCL : MISC_I15<0x002b8000>;
+
+} // hasSideEffects = 1, mayLoad = 0, mayStore = 0, Predicates = [HasExtLVZ]

llvm/lib/Target/LoongArch/LoongArchRegisterInfo.td

 
 foreach I = 0-31 in
 def XR#I : LoongArchReg256<!cast<LoongArchReg128>("VR"#I), "xr"#I>,
            DwarfRegAlias<!cast<LoongArchReg128>("VR"#I)>;
 
 def LASX256 : RegisterClass<"LoongArch",
                             [v8f32, v4f64, v32i8, v16i16, v8i32, v4i64],
                             256, (sequence "XR%u", 0, 31)>;
+
+// Scratchpad registers
+
+foreach I = 0-3 in
+def SCR#I : LoongArchReg<I, "scr"#I>;
+
+let isAllocatable = false, RegInfos = GRLenRI in
+def SCR : RegisterClass<"LoongArch", [GRLenVT], 32, (sequence "SCR%u", 0, 3)>;

llvm/test/MC/LoongArch/lbt/arm-alu.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+armadd.w $a0, $a1, 1
+# CHECK-INST: armadd.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x14,0x37,0x00]
+
+armsub.w $a0, $a1, 1
+# CHECK-INST: armsub.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x94,0x37,0x00]
+
+armadc.w $a0, $a1, 1
+# CHECK-INST: armadc.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x14,0x38,0x00]
+
+armsbc.w $a0, $a1, 1
+# CHECK-INST: armsbc.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x94,0x38,0x00]
+
+armand.w $a0, $a1, 1
+# CHECK-INST: armand.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x14,0x39,0x00]
+
+armor.w $a0, $a1, 1
+# CHECK-INST: armor.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x94,0x39,0x00]
+
+armxor.w $a0, $a1, 1
+# CHECK-INST: armxor.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x14,0x3a,0x00]
+
+armnot.w $a0, 1
+# CHECK-INST: armnot.w $a0, 1
+# CHECK-ENCODING: encoding: [0x9c,0xc4,0x3f,0x00]

llvm/test/MC/LoongArch/lbt/arm-jump.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+setarmj $a0, 1
+# CHECK-INST: setarmj $a0, 1
+# CHECK-ENCODING: encoding: [0x04,0xc4,0x36,0x00]

llvm/test/MC/LoongArch/lbt/arm-mov.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+armmove $a0, $a1, 1
+# CHECK-INST: armmove $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x44,0x36,0x00]
+
+armmov.w $a0, 1
+# CHECK-INST: armmov.w $a0, 1
+# CHECK-ENCODING: encoding: [0x9d,0xc4,0x3f,0x00]
+
+armmov.d $a0, 1
+# CHECK-INST: armmov.d $a0, 1
+# CHECK-ENCODING: encoding: [0x9e,0xc4,0x3f,0x00]
+
+armmfflag $a0, 1
+# CHECK-INST: armmfflag $a0, 1
+# CHECK-ENCODING: encoding: [0x44,0x04,0x5c,0x00]
+
+armmtflag $a0, 1
+# CHECK-INST: armmtflag $a0, 1
+# CHECK-ENCODING: encoding: [0x64,0x04,0x5c,0x00]

llvm/test/MC/LoongArch/lbt/arm-shift.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+armsll.w $a0, $a1, 1
+# CHECK-INST: armsll.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x94,0x3a,0x00]
+
+armsrl.w $a0, $a1, 1
+# CHECK-INST: armsrl.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x14,0x3b,0x00]
+
+armsra.w $a0, $a1, 1
+# CHECK-INST: armsra.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x94,0x3b,0x00]
+
+armrotr.w $a0, $a1, 1
+# CHECK-INST: armrotr.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0x91,0x14,0x3c,0x00]
+
+armslli.w $a0, 1, 1
+# CHECK-INST: armslli.w $a0, 1, 1
+# CHECK-ENCODING: encoding: [0x91,0x84,0x3c,0x00]
+
+armsrli.w $a0, 1, 1
+# CHECK-INST: armsrli.w $a0, 1, 1
+# CHECK-ENCODING: encoding: [0x91,0x04,0x3d,0x00]
+
+armsrai.w $a0, 1, 1
+# CHECK-INST: armsrai.w $a0, 1, 1
+# CHECK-ENCODING: encoding: [0x91,0x84,0x3d,0x00]
+
+armrotri.w $a0, 1, 1
+# CHECK-INST: armrotri.w $a0, 1, 1
+# CHECK-ENCODING: encoding: [0x91,0x04,0x3e,0x00]
+
+armrrx.w $a0, 1
+# CHECK-INST: armrrx.w $a0, 1
+# CHECK-ENCODING: encoding: [0x9f,0xc4,0x3f,0x00]

llvm/test/MC/LoongArch/lbt/base.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+addu12i.w $a0, $a1, 1
+# CHECK-INST: addu12i.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x29,0x00]
+
+addu12i.d $a0, $a1, 1
+# CHECK-INST: addu12i.d $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x84,0x29,0x00]
+
+adc.b $a0, $a1, $a2
+# CHECK-INST: adc.b $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x18,0x30,0x00]
+
+adc.h $a0, $a1, $a2
+# CHECK-INST: adc.h $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x98,0x30,0x00]
+
+adc.w $a0, $a1, $a2
+# CHECK-INST: adc.w $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x18,0x31,0x00]
+
+adc.d $a0, $a1, $a2
+# CHECK-INST: adc.d $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x98,0x31,0x00]
+
+sbc.b $a0, $a1, $a2
+# CHECK-INST: sbc.b $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x18,0x32,0x00]
+
+sbc.h $a0, $a1, $a2
+# CHECK-INST: sbc.h $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x98,0x32,0x00]
+
+sbc.w $a0, $a1, $a2
+# CHECK-INST: sbc.w $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x18,0x33,0x00]
+
+sbc.d $a0, $a1, $a2
+# CHECK-INST: sbc.d $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x98,0x33,0x00]
+
+rotr.b $a0, $a1, $a2
+# CHECK-INST: rotr.b $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x18,0x1a,0x00]
+
+rotr.h $a0, $a1, $a2
+# CHECK-INST: rotr.h $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x98,0x1a,0x00]
+
+rotri.b $a0, $a1, 1
+# CHECK-INST: rotri.b $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x24,0x4c,0x00]
+
+rotri.h $a0, $a1, 1
+# CHECK-INST: rotri.h $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x44,0x4c,0x00]
+
+rcr.b $a0, $a1, $a2
+# CHECK-INST: rcr.b $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x18,0x34,0x00]
+
+rcr.h $a0, $a1, $a2
+# CHECK-INST: rcr.h $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x98,0x34,0x00]
+
+rcr.w $a0, $a1, $a2
+# CHECK-INST: rcr.w $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x18,0x35,0x00]
+
+rcr.d $a0, $a1, $a2
+# CHECK-INST: rcr.d $a0, $a1, $a2
+# CHECK-ENCODING: encoding: [0xa4,0x98,0x35,0x00]
+
+rcri.b $a0, $a1, 1
+# CHECK-INST: rcri.b $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x24,0x50,0x00]
+
+rcri.h $a0, $a1, 1
+# CHECK-INST: rcri.h $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x44,0x50,0x00]
+
+rcri.w $a0, $a1, 1
+# CHECK-INST: rcri.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x84,0x50,0x00]
+
+rcri.d $a0, $a1, 1
+# CHECK-INST: rcri.d $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x51,0x00]
+
+fcvt.ud.d $f0, $f1
+# CHECK-INST: fcvt.ud.d $fa0, $fa1
+# CHECK-ENCODING: encoding: [0x20,0xe4,0x14,0x01]
+
+fcvt.ld.d $f0, $f1
+# CHECK-INST: fcvt.ld.d $fa0, $fa1
+# CHECK-ENCODING: encoding: [0x20,0xe0,0x14,0x01]
+
+fcvt.d.ld $f0, $f1, $f2
+# CHECK-INST: fcvt.d.ld $fa0, $fa1, $fa2
+# CHECK-ENCODING: encoding: [0x20,0x08,0x15,0x01]
+
+ldl.d $a0, $a1, 1
+# CHECK-INST: ldl.d $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x80,0x2e]
+
+ldl.w $a0, $a1, 1
+# CHECK-INST: ldl.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x00,0x2e]
+
+ldr.w $a0, $a1, 1
+# CHECK-INST: ldr.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x40,0x2e]
+
+ldr.d $a0, $a1, 1
+# CHECK-INST: ldr.d $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0xc0,0x2e]
+
+stl.w $a0, $a1, 1
+# CHECK-INST: stl.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x00,0x2f]
+
+stl.d $a0, $a1, 1
+# CHECK-INST: stl.d $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x80,0x2f]
+
+str.w $a0, $a1, 1
+# CHECK-INST: str.w $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x40,0x2f]
+
+str.d $a0, $a1, 1
+# CHECK-INST: str.d $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0xc0,0x2f]

llvm/test/MC/LoongArch/lbt/scr.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+movgr2scr $scr0, $a1
+# CHECK-INST: movgr2scr $scr0, $a1
+# CHECK-ENCODING: encoding: [0xa0,0x08,0x00,0x00]
+
+movscr2gr $a0, $scr1
+# CHECK-INST: movscr2gr $a0, $scr1
+# CHECK-ENCODING: encoding: [0x24,0x0c,0x00,0x00]
+
+jiscr0 100
+# CHECK-INST: jiscr0 100
+# CHECK-ENCODING: encoding: [0x00,0x66,0x00,0x48]
+
+jiscr1 100
+# CHECK-INST: jiscr1 100
+# CHECK-ENCODING: encoding: [0x00,0x67,0x00,0x48]

llvm/test/MC/LoongArch/lbt/x86-alu.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+x86adc.b $a0, $a1
+# CHECK-INST: x86adc.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x8c,0x14,0x3f,0x00]
+
+x86adc.h $a0, $a1
+# CHECK-INST: x86adc.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x8d,0x14,0x3f,0x00]
+
+x86adc.w $a0, $a1
+# CHECK-INST: x86adc.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x8e,0x14,0x3f,0x00]
+
+x86adc.d $a0, $a1
+# CHECK-INST: x86adc.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x8f,0x14,0x3f,0x00]
+
+x86add.b $a0, $a1
+# CHECK-INST: x86add.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x84,0x14,0x3f,0x00]
+
+x86add.h $a0, $a1
+# CHECK-INST: x86add.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x85,0x14,0x3f,0x00]
+
+x86add.w $a0, $a1
+# CHECK-INST: x86add.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x86,0x14,0x3f,0x00]
+
+x86add.d $a0, $a1
+# CHECK-INST: x86add.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x87,0x14,0x3f,0x00]
+
+x86add.wu $a0, $a1
+# CHECK-INST: x86add.wu $a0, $a1
+# CHECK-ENCODING: encoding: [0x80,0x14,0x3f,0x00]
+
+x86add.du $a0, $a1
+# CHECK-INST: x86add.du $a0, $a1
+# CHECK-ENCODING: encoding: [0x81,0x14,0x3f,0x00]
+
+x86inc.b $a0
+# CHECK-INST: x86inc.b $a0
+# CHECK-ENCODING: encoding: [0x80,0x80,0x00,0x00]
+
+x86inc.h $a0
+# CHECK-INST: x86inc.h $a0
+# CHECK-ENCODING: encoding: [0x81,0x80,0x00,0x00]
+
+x86inc.w $a0
+# CHECK-INST: x86inc.w $a0
+# CHECK-ENCODING: encoding: [0x82,0x80,0x00,0x00]
+
+x86inc.d $a0
+# CHECK-INST: x86inc.d $a0
+# CHECK-ENCODING: encoding: [0x83,0x80,0x00,0x00]
+
+x86sbc.b $a0, $a1
+# CHECK-INST: x86sbc.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x90,0x14,0x3f,0x00]
+
+x86sbc.h $a0, $a1
+# CHECK-INST: x86sbc.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x91,0x14,0x3f,0x00]
+
+x86sbc.w $a0, $a1
+# CHECK-INST: x86sbc.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x92,0x14,0x3f,0x00]
+
+x86sbc.d $a0, $a1
+# CHECK-INST: x86sbc.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x93,0x14,0x3f,0x00]
+
+x86sub.b $a0, $a1
+# CHECK-INST: x86sub.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x88,0x14,0x3f,0x00]
+
+x86sub.h $a0, $a1
+# CHECK-INST: x86sub.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x89,0x14,0x3f,0x00]
+
+x86sub.w $a0, $a1
+# CHECK-INST: x86sub.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x8a,0x14,0x3f,0x00]
+
+x86sub.d $a0, $a1
+# CHECK-INST: x86sub.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x8b,0x14,0x3f,0x00]
+
+x86sub.wu $a0, $a1
+# CHECK-INST: x86sub.wu $a0, $a1
+# CHECK-ENCODING: encoding: [0x82,0x14,0x3f,0x00]
+
+x86sub.du $a0, $a1
+# CHECK-INST: x86sub.du $a0, $a1
+# CHECK-ENCODING: encoding: [0x83,0x14,0x3f,0x00]
+
+x86dec.b $a0
+# CHECK-INST: x86dec.b $a0
+# CHECK-ENCODING: encoding: [0x84,0x80,0x00,0x00]
+
+x86dec.h $a0
+# CHECK-INST: x86dec.h $a0
+# CHECK-ENCODING: encoding: [0x85,0x80,0x00,0x00]
+
+x86dec.w $a0
+# CHECK-INST: x86dec.w $a0
+# CHECK-ENCODING: encoding: [0x86,0x80,0x00,0x00]
+
+x86dec.d $a0
+# CHECK-INST: x86dec.d $a0
+# CHECK-ENCODING: encoding: [0x87,0x80,0x00,0x00]
+
+x86and.b $a0, $a1
+# CHECK-INST: x86and.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x90,0x94,0x3f,0x00]
+
+x86and.h $a0, $a1
+# CHECK-INST: x86and.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x91,0x94,0x3f,0x00]
+
+x86and.w $a0, $a1
+# CHECK-INST: x86and.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x92,0x94,0x3f,0x00]
+
+x86and.d $a0, $a1
+# CHECK-INST: x86and.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x93,0x94,0x3f,0x00]
+
+x86or.b $a0, $a1
+# CHECK-INST: x86or.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x94,0x94,0x3f,0x00]
+
+x86or.h $a0, $a1
+# CHECK-INST: x86or.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x95,0x94,0x3f,0x00]
+
+x86or.w $a0, $a1
+# CHECK-INST: x86or.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x96,0x94,0x3f,0x00]
+
+x86or.d $a0, $a1
+# CHECK-INST: x86or.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x97,0x94,0x3f,0x00]
+
+x86xor.b $a0, $a1
+# CHECK-INST: x86xor.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x98,0x94,0x3f,0x00]
+
+x86xor.h $a0, $a1
+# CHECK-INST: x86xor.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x99,0x94,0x3f,0x00]
+
+x86xor.w $a0, $a1
+# CHECK-INST: x86xor.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x9a,0x94,0x3f,0x00]
+
+x86xor.d $a0, $a1
+# CHECK-INST: x86xor.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x9b,0x94,0x3f,0x00]
+
+x86mul.b $a0, $a1
+# CHECK-INST: x86mul.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x80,0x94,0x3e,0x00]
+
+x86mul.h $a0, $a1
+# CHECK-INST: x86mul.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x81,0x94,0x3e,0x00]
+
+x86mul.w $a0, $a1
+# CHECK-INST: x86mul.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x82,0x94,0x3e,0x00]
+
+x86mul.d $a0, $a1
+# CHECK-INST: x86mul.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x83,0x94,0x3e,0x00]
+
+x86mul.bu $a0, $a1
+# CHECK-INST: x86mul.bu $a0, $a1
+# CHECK-ENCODING: encoding: [0x84,0x94,0x3e,0x00]
+
+x86mul.hu $a0, $a1
+# CHECK-INST: x86mul.hu $a0, $a1
+# CHECK-ENCODING: encoding: [0x85,0x94,0x3e,0x00]
+
+x86mul.wu $a0, $a1
+# CHECK-INST: x86mul.wu $a0, $a1
+# CHECK-ENCODING: encoding: [0x86,0x94,0x3e,0x00]
+
+x86mul.du $a0, $a1
+# CHECK-INST: x86mul.du $a0, $a1
+# CHECK-ENCODING: encoding: [0x87,0x94,0x3e,0x00]

llvm/test/MC/LoongArch/lbt/x86-jump.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+setx86j $a0, 1
+# CHECK-INST: setx86j $a0, 1
+# CHECK-ENCODING: encoding: [0x04,0x84,0x36,0x00]
+
+setx86loope $a0, $a1
+# CHECK-INST: setx86loope $a0, $a1
+# CHECK-ENCODING: encoding: [0xa4,0x78,0x00,0x00]
+
+setx86loopne $a0, $a1
+# CHECK-INST: setx86loopne $a0, $a1
+# CHECK-ENCODING: encoding: [0xa4,0x7c,0x00,0x00]

llvm/test/MC/LoongArch/lbt/x86-misc.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+x86mfflag $a0, 1
+# CHECK-INST: x86mfflag $a0, 1
+# CHECK-ENCODING: encoding: [0x04,0x04,0x5c,0x00]
+
+x86mtflag $a0, 1
+# CHECK-INST: x86mtflag $a0, 1
+# CHECK-ENCODING: encoding: [0x24,0x04,0x5c,0x00]
+
+x86mftop $a0
+# CHECK-INST: x86mftop $a0
+# CHECK-ENCODING: encoding: [0x04,0x74,0x00,0x00]
+
+x86mttop 1
+# CHECK-INST: x86mttop 1
+# CHECK-ENCODING: encoding: [0x20,0x70,0x00,0x00]
+
+x86inctop
+# CHECK-INST: x86inctop
+# CHECK-ENCODING: encoding: [0x09,0x80,0x00,0x00]
+
+x86dectop
+# CHECK-INST: x86dectop
+# CHECK-ENCODING: encoding: [0x29,0x80,0x00,0x00]
+
+x86settm
+# CHECK-INST: x86settm
+# CHECK-ENCODING: encoding: [0x08,0x80,0x00,0x00]
+
+x86clrtm
+# CHECK-INST: x86clrtm
+# CHECK-ENCODING: encoding: [0x28,0x80,0x00,0x00]
+
+x86settag $a0, 1, 1
+# CHECK-INST: x86settag $a0, 1, 1
+# CHECK-ENCODING: encoding: [0x24,0x04,0x58,0x00]

llvm/test/MC/LoongArch/lbt/x86-shift.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+x86rcl.b $a0, $a1
+# CHECK-INST: x86rcl.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x8c,0x94,0x3f,0x00]
+
+x86rcl.h $a0, $a1
+# CHECK-INST: x86rcl.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x8d,0x94,0x3f,0x00]
+
+x86rcl.w $a0, $a1
+# CHECK-INST: x86rcl.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x8e,0x94,0x3f,0x00]
+
+x86rcl.d $a0, $a1
+# CHECK-INST: x86rcl.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x8f,0x94,0x3f,0x00]
+
+x86rcli.b $a0, 1
+# CHECK-INST: x86rcli.b $a0, 1
+# CHECK-ENCODING: encoding: [0x98,0x24,0x54,0x00]
+
+x86rcli.h $a0, 1
+# CHECK-INST: x86rcli.h $a0, 1
+# CHECK-ENCODING: encoding: [0x99,0x44,0x54,0x00]
+
+x86rcli.w $a0, 1
+# CHECK-INST: x86rcli.w $a0, 1
+# CHECK-ENCODING: encoding: [0x9a,0x84,0x54,0x00]
+
+x86rcli.d $a0, 1
+# CHECK-INST: x86rcli.d $a0, 1
+# CHECK-ENCODING: encoding: [0x9b,0x04,0x55,0x00]
+
+x86rcr.b $a0, $a1
+# CHECK-INST: x86rcr.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x88,0x94,0x3f,0x00]
+
+x86rcr.h $a0, $a1
+# CHECK-INST: x86rcr.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x89,0x94,0x3f,0x00]
+
+x86rcr.w $a0, $a1
+# CHECK-INST: x86rcr.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x8a,0x94,0x3f,0x00]
+
+x86rcr.d $a0, $a1
+# CHECK-INST: x86rcr.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x8b,0x94,0x3f,0x00]
+
+x86rcri.b $a0, 1
+# CHECK-INST: x86rcri.b $a0, 1
+# CHECK-ENCODING: encoding: [0x90,0x24,0x54,0x00]
+
+x86rcri.h $a0, 1
+# CHECK-INST: x86rcri.h $a0, 1
+# CHECK-ENCODING: encoding: [0x91,0x44,0x54,0x00]
+
+x86rcri.w $a0, 1
+# CHECK-INST: x86rcri.w $a0, 1
+# CHECK-ENCODING: encoding: [0x92,0x84,0x54,0x00]
+
+x86rcri.d $a0, 1
+# CHECK-INST: x86rcri.d $a0, 1
+# CHECK-ENCODING: encoding: [0x93,0x04,0x55,0x00]
+
+x86rotl.b $a0, $a1
+# CHECK-INST: x86rotl.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x84,0x94,0x3f,0x00]
+
+x86rotl.h $a0, $a1
+# CHECK-INST: x86rotl.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x85,0x94,0x3f,0x00]
+
+x86rotl.w $a0, $a1
+# CHECK-INST: x86rotl.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x86,0x94,0x3f,0x00]
+
+x86rotl.d $a0, $a1
+# CHECK-INST: x86rotl.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x87,0x94,0x3f,0x00]
+
+x86rotli.b $a0, 1
+# CHECK-INST: x86rotli.b $a0, 1
+# CHECK-ENCODING: encoding: [0x94,0x24,0x54,0x00]
+
+x86rotli.h $a0, 1
+# CHECK-INST: x86rotli.h $a0, 1
+# CHECK-ENCODING: encoding: [0x95,0x44,0x54,0x00]
+
+x86rotli.w $a0, 1
+# CHECK-INST: x86rotli.w $a0, 1
+# CHECK-ENCODING: encoding: [0x96,0x84,0x54,0x00]
+
+x86rotli.d $a0, 1
+# CHECK-INST: x86rotli.d $a0, 1
+# CHECK-ENCODING: encoding: [0x97,0x04,0x55,0x00]
+
+x86rotr.b $a0, $a1
+# CHECK-INST: x86rotr.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x80,0x94,0x3f,0x00]
+
+x86rotr.h $a0, $a1
+# CHECK-INST: x86rotr.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x81,0x94,0x3f,0x00]
+
+x86rotr.d $a0, $a1
+# CHECK-INST: x86rotr.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x82,0x94,0x3f,0x00]
+
+x86rotr.w $a0, $a1
+# CHECK-INST: x86rotr.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x83,0x94,0x3f,0x00]
+
+x86rotri.b $a0, 1
+# CHECK-INST: x86rotri.b $a0, 1
+# CHECK-ENCODING: encoding: [0x8c,0x24,0x54,0x00]
+
+x86rotri.h $a0, 1
+# CHECK-INST: x86rotri.h $a0, 1
+# CHECK-ENCODING: encoding: [0x8d,0x44,0x54,0x00]
+
+x86rotri.w $a0, 1
+# CHECK-INST: x86rotri.w $a0, 1
+# CHECK-ENCODING: encoding: [0x8e,0x84,0x54,0x00]
+
+x86rotri.d $a0, 1
+# CHECK-INST: x86rotri.d $a0, 1
+# CHECK-ENCODING: encoding: [0x8f,0x04,0x55,0x00]
+
+x86sll.b $a0, $a1
+# CHECK-INST: x86sll.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x94,0x14,0x3f,0x00]
+
+x86sll.h $a0, $a1
+# CHECK-INST: x86sll.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x95,0x14,0x3f,0x00]
+
+x86sll.w $a0, $a1
+# CHECK-INST: x86sll.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x96,0x14,0x3f,0x00]
+
+x86sll.d $a0, $a1
+# CHECK-INST: x86sll.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x97,0x14,0x3f,0x00]
+
+x86slli.b $a0, 1
+# CHECK-INST: x86slli.b $a0, 1
+# CHECK-ENCODING: encoding: [0x80,0x24,0x54,0x00]
+
+x86slli.h $a0, 1
+# CHECK-INST: x86slli.h $a0, 1
+# CHECK-ENCODING: encoding: [0x81,0x44,0x54,0x00]
+
+x86slli.w $a0, 1
+# CHECK-INST: x86slli.w $a0, 1
+# CHECK-ENCODING: encoding: [0x82,0x84,0x54,0x00]
+
+x86slli.d $a0, 1
+# CHECK-INST: x86slli.d $a0, 1
+# CHECK-ENCODING: encoding: [0x83,0x04,0x55,0x00]
+
+x86srl.b $a0, $a1
+# CHECK-INST: x86srl.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x98,0x14,0x3f,0x00]
+
+x86srl.h $a0, $a1
+# CHECK-INST: x86srl.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x99,0x14,0x3f,0x00]
+
+x86srl.w $a0, $a1
+# CHECK-INST: x86srl.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x9a,0x14,0x3f,0x00]
+
+x86srl.d $a0, $a1
+# CHECK-INST: x86srl.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x9b,0x14,0x3f,0x00]
+
+x86srli.b $a0, 1
+# CHECK-INST: x86srli.b $a0, 1
+# CHECK-ENCODING: encoding: [0x84,0x24,0x54,0x00]
+
+x86srli.h $a0, 1
+# CHECK-INST: x86srli.h $a0, 1
+# CHECK-ENCODING: encoding: [0x85,0x44,0x54,0x00]
+
+x86srli.w $a0, 1
+# CHECK-INST: x86srli.w $a0, 1
+# CHECK-ENCODING: encoding: [0x86,0x84,0x54,0x00]
+
+x86srli.d $a0, 1
+# CHECK-INST: x86srli.d $a0, 1
+# CHECK-ENCODING: encoding: [0x87,0x04,0x55,0x00]
+
+x86sra.b $a0, $a1
+# CHECK-INST: x86sra.b $a0, $a1
+# CHECK-ENCODING: encoding: [0x9c,0x14,0x3f,0x00]
+
+x86sra.h $a0, $a1
+# CHECK-INST: x86sra.h $a0, $a1
+# CHECK-ENCODING: encoding: [0x9d,0x14,0x3f,0x00]
+
+x86sra.w $a0, $a1
+# CHECK-INST: x86sra.w $a0, $a1
+# CHECK-ENCODING: encoding: [0x9e,0x14,0x3f,0x00]
+
+x86sra.d $a0, $a1
+# CHECK-INST: x86sra.d $a0, $a1
+# CHECK-ENCODING: encoding: [0x9f,0x14,0x3f,0x00]
+
+x86srai.b $a0, 1
+# CHECK-INST: x86srai.b $a0, 1
+# CHECK-ENCODING: encoding: [0x88,0x24,0x54,0x00]
+
+x86srai.h $a0, 1
+# CHECK-INST: x86srai.h $a0, 1
+# CHECK-ENCODING: encoding: [0x89,0x44,0x54,0x00]
+
+x86srai.w $a0, 1
+# CHECK-INST: x86srai.w $a0, 1
+# CHECK-ENCODING: encoding: [0x8a,0x84,0x54,0x00]
+
+x86srai.d $a0, 1
+# CHECK-INST: x86srai.d $a0, 1
+# CHECK-ENCODING: encoding: [0x8b,0x04,0x55,0x00]

llvm/test/MC/LoongArch/lvz/lvz-err.s

+# RUN: not llvm-mc --triple=loongarch64 %s 2>&1 | FileCheck %s
+
+gcsrrd $a0, 16384
+# CHECK: :[[#@LINE-1]]:13: error: immediate must be an integer in the range [0, 16383]
+
+gcsrrd $a0, -1
+# CHECK: :[[#@LINE-1]]:13: error: immediate must be an integer in the range [0, 16383]
+
+gcsrwr $a0, 16384
+# CHECK: :[[#@LINE-1]]:13: error: immediate must be an integer in the range [0, 16383]
+
+gcsrwr $a0, -1
+# CHECK: :[[#@LINE-1]]:13: error: immediate must be an integer in the range [0, 16383]
+
+gcsrxchg $a0, $a1, 16384
+# CHECK: :[[#@LINE-1]]:20: error: immediate must be an integer in the range [0, 16383]
+
+gcsrxchg $a0, $a1, -1
+# CHECK: :[[#@LINE-1]]:20: error: immediate must be an integer in the range [0, 16383]
+
+gcsrxchg $a0, $ra, 1
+# CHECK: :[[#@LINE-1]]:16: error: must not be $r0 or $r1
+
+gcsrxchg $a0, $zero, 1
+# CHECK: :[[#@LINE-1]]:16: error: must not be $r0 or $r1
+
+hvcl 32768
+# CHECK: :[[#@LINE-1]]:6: error: immediate must be an integer in the range [0, 32767]
+
+hvcl -1
+# CHECK: :[[#@LINE-1]]:6: error: immediate must be an integer in the range [0, 32767]

llvm/test/MC/LoongArch/lvz/lvz.s

+# RUN: llvm-mc --triple=loongarch64 --show-encoding %s | \
+# RUN:        FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
+# RUN: llvm-mc --triple=loongarch64 --filetype=obj %s | \
+# RUN:        llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-INST
+
+gcsrrd $a0, 1
+# CHECK-INST: gcsrrd $a0, 1
+# CHECK-ENCODING: encoding: [0x04,0x04,0x00,0x05]
+
+gcsrwr $a0, 1
+# CHECK-INST: gcsrwr $a0, 1
+# CHECK-ENCODING: encoding: [0x24,0x04,0x00,0x05]
+
+gcsrxchg $a0, $a1, 1
+# CHECK-INST: gcsrxchg $a0, $a1, 1
+# CHECK-ENCODING: encoding: [0xa4,0x04,0x00,0x05]
+
+gtlbflush
+# CHECK-INST: gtlbflush
+# CHECK-ENCODING: encoding: [0x01,0x24,0x48,0x06]
+
+hvcl 1
+# CHECK-INST: hvcl 1
+# CHECK-ENCODING: encoding: [0x01,0x80,0x2b,0x00]