llvm-project/llvm/lib/Target/Hexagon/HexagonPseudo.td

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TableGen

//===--- HexagonPseudo.td -------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// The pat frags in the definitions below need to have a named register,
// otherwise i32 will be assumed regardless of the register class. The
// name of the register does not matter.
def I1 : PatLeaf<(i1 PredRegs:$R)>;
def I32 : PatLeaf<(i32 IntRegs:$R)>;
def I64 : PatLeaf<(i64 DoubleRegs:$R)>;
def F32 : PatLeaf<(f32 IntRegs:$R)>;
def F64 : PatLeaf<(f64 DoubleRegs:$R)>;
let PrintMethod = "printGlobalOperand" in {
def globaladdress : Operand<i32>;
def globaladdressExt : Operand<i32>;
}
let isPseudo = 1 in {
let isCodeGenOnly = 0 in
def A2_iconst : Pseudo<(outs IntRegs:$Rd32),
(ins s27_2Imm:$Ii), "${Rd32}=iconst(#${Ii})">;
def DUPLEX_Pseudo : InstHexagon<(outs),
(ins s32_0Imm:$offset), "DUPLEX", [], "", DUPLEX, TypePSEUDO>;
}
let isExtendable = 1, opExtendable = 1, opExtentBits = 6,
isAsmParserOnly = 1 in
def TFRI64_V2_ext : InstHexagon<(outs DoubleRegs:$dst),
(ins s32_0Imm:$src1, s8_0Imm:$src2),
"$dst=combine(#$src1,#$src2)", [], "",
A2_combineii.Itinerary, TypeALU32_2op>, OpcodeHexagon;
// HI/LO Instructions
let isReMaterializable = 1, isMoveImm = 1, hasSideEffects = 0,
hasNewValue = 1, opNewValue = 0 in
class REG_IMMED<string RegHalf, bit Rs, bits<3> MajOp, bit MinOp,
InstHexagon rootInst>
: InstHexagon<(outs IntRegs:$dst),
(ins u16_0Imm:$imm_value),
"$dst"#RegHalf#"=#$imm_value", [], "",
rootInst.Itinerary, rootInst.Type>, OpcodeHexagon {
bits<5> dst;
bits<32> imm_value;
let Inst{27} = Rs;
let Inst{26-24} = MajOp;
let Inst{21} = MinOp;
let Inst{20-16} = dst;
let Inst{23-22} = imm_value{15-14};
let Inst{13-0} = imm_value{13-0};
}
let isAsmParserOnly = 1 in {
def LO : REG_IMMED<".l", 0b0, 0b001, 0b1, A2_tfril>;
def HI : REG_IMMED<".h", 0b0, 0b010, 0b1, A2_tfrih>;
}
let isReMaterializable = 1, isMoveImm = 1, isAsmParserOnly = 1 in {
def CONST32 : CONSTLDInst<(outs IntRegs:$Rd), (ins i32imm:$v),
"$Rd = CONST32(#$v)", []>;
def CONST64 : CONSTLDInst<(outs DoubleRegs:$Rd), (ins i64imm:$v),
"$Rd = CONST64(#$v)", []>;
}
let hasSideEffects = 0, isReMaterializable = 1, isPseudo = 1,
isCodeGenOnly = 1 in
def PS_true : InstHexagon<(outs PredRegs:$dst), (ins), "",
[(set I1:$dst, 1)], "", C2_orn.Itinerary, TypeCR>;
let hasSideEffects = 0, isReMaterializable = 1, isPseudo = 1,
isCodeGenOnly = 1 in
def PS_false : InstHexagon<(outs PredRegs:$dst), (ins), "",
[(set I1:$dst, 0)], "", C2_andn.Itinerary, TypeCR>;
let Defs = [R29, R30], Uses = [R31, R30, R29], isPseudo = 1 in
def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
".error \"should not emit\" ", []>;
let Defs = [R29, R30, R31], Uses = [R29], isPseudo = 1 in
def ADJCALLSTACKUP : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
".error \"should not emit\" ", []>;
let isBranch = 1, isTerminator = 1, hasSideEffects = 0,
Defs = [PC, LC0], Uses = [SA0, LC0] in {
def ENDLOOP0 : Endloop<(outs), (ins b30_2Imm:$offset),
":endloop0",
[]>;
}
let isBranch = 1, isTerminator = 1, hasSideEffects = 0,
Defs = [PC, LC1], Uses = [SA1, LC1] in {
def ENDLOOP1 : Endloop<(outs), (ins b30_2Imm:$offset),
":endloop1",
[]>;
}
let isExtendable = 1, isExtentSigned = 1, opExtentBits = 9, opExtentAlign = 2,
opExtendable = 0, hasSideEffects = 0 in
class LOOP_iBase<string mnemonic, InstHexagon rootInst>
: InstHexagon <(outs), (ins b30_2Imm:$offset, u10_0Imm:$src2),
#mnemonic#"($offset,#$src2)",
[], "", rootInst.Itinerary, rootInst.Type>, OpcodeHexagon {
bits<9> offset;
bits<10> src2;
let IClass = 0b0110;
let Inst{27-22} = 0b100100;
let Inst{21} = !if (!eq(mnemonic, "loop0"), 0b0, 0b1);
let Inst{20-16} = src2{9-5};
let Inst{12-8} = offset{8-4};
let Inst{7-5} = src2{4-2};
let Inst{4-3} = offset{3-2};
let Inst{1-0} = src2{1-0};
}
let isExtendable = 1, isExtentSigned = 1, opExtentBits = 9, opExtentAlign = 2,
opExtendable = 0, hasSideEffects = 0 in
class LOOP_rBase<string mnemonic, InstHexagon rootInst>
: InstHexagon<(outs), (ins b30_2Imm:$offset, IntRegs:$src2),
#mnemonic#"($offset,$src2)",
[], "", rootInst.Itinerary, rootInst.Type>, OpcodeHexagon {
bits<9> offset;
bits<5> src2;
let IClass = 0b0110;
let Inst{27-22} = 0b000000;
let Inst{21} = !if (!eq(mnemonic, "loop0"), 0b0, 0b1);
let Inst{20-16} = src2;
let Inst{12-8} = offset{8-4};
let Inst{4-3} = offset{3-2};
}
let Defs = [SA0, LC0, USR], isCodeGenOnly = 1, isExtended = 1,
opExtendable = 0 in {
def J2_loop0iext : LOOP_iBase<"loop0", J2_loop0i>;
def J2_loop1iext : LOOP_iBase<"loop1", J2_loop1i>;
}
// Interestingly only loop0's appear to set usr.lpcfg
let Defs = [SA1, LC1], isCodeGenOnly = 1, isExtended = 1, opExtendable = 0 in {
def J2_loop0rext : LOOP_rBase<"loop0", J2_loop0r>;
def J2_loop1rext : LOOP_rBase<"loop1", J2_loop1r>;
}
let isCall = 1, hasSideEffects = 1, isPredicable = 0,
isExtended = 0, isExtendable = 1, opExtendable = 0,
isExtentSigned = 1, opExtentBits = 24, opExtentAlign = 2 in
class T_Call<string ExtStr>
: InstHexagon<(outs), (ins a30_2Imm:$dst),
"call " # ExtStr # "$dst", [], "", J2_call.Itinerary, TypeJ>,
OpcodeHexagon {
let BaseOpcode = "call";
bits<24> dst;
let IClass = 0b0101;
let Inst{27-25} = 0b101;
let Inst{24-16,13-1} = dst{23-2};
let Inst{0} = 0b0;
}
let isCodeGenOnly = 1, isCall = 1, hasSideEffects = 1, Defs = [R16],
isPredicable = 0 in
def CALLProfile : T_Call<"">;
let isCodeGenOnly = 1, isCall = 1, hasSideEffects = 1,
Defs = [PC, R31, R6, R7, P0] in
def PS_call_stk : T_Call<"">;
// Call, no return.
let isCall = 1, hasSideEffects = 1, cofMax1 = 1, isCodeGenOnly = 1 in
def PS_callr_nr: InstHexagon<(outs), (ins IntRegs:$Rs),
"callr $Rs", [], "", J2_callr.Itinerary, TypeJ>, OpcodeHexagon {
bits<5> Rs;
bits<2> Pu;
let isPredicatedFalse = 1;
let IClass = 0b0101;
let Inst{27-21} = 0b0000101;
let Inst{20-16} = Rs;
}
let isCall = 1, hasSideEffects = 1,
isExtended = 0, isExtendable = 1, opExtendable = 0, isCodeGenOnly = 1,
BaseOpcode = "PS_call_nr", isExtentSigned = 1, opExtentAlign = 2 in
class Call_nr<bits<5> nbits, bit isPred, bit isFalse, dag iops,
InstrItinClass itin>
: Pseudo<(outs), iops, "">, PredRel {
bits<2> Pu;
bits<17> dst;
let opExtentBits = nbits;
let isPredicable = 0; // !if(isPred, 0, 1);
let isPredicated = 0; // isPred;
let isPredicatedFalse = isFalse;
}
def PS_call_nr : Call_nr<24, 0, 0, (ins s32_0Imm:$Ii), J2_call.Itinerary>;
//def PS_call_nrt: Call_nr<17, 1, 0, (ins PredRegs:$Pu, s32_0Imm:$dst),
// J2_callt.Itinerary>;
//def PS_call_nrf: Call_nr<17, 1, 1, (ins PredRegs:$Pu, s32_0Imm:$dst),
// J2_callf.Itinerary>;
let isBranch = 1, isIndirectBranch = 1, isBarrier = 1, Defs = [PC],
isPredicable = 1, hasSideEffects = 0, InputType = "reg",
cofMax1 = 1 in
class T_JMPr <InstHexagon rootInst>
: InstHexagon<(outs), (ins IntRegs:$dst), "jumpr $dst", [],
"", rootInst.Itinerary, rootInst.Type>, OpcodeHexagon {
bits<5> dst;
let IClass = 0b0101;
let Inst{27-21} = 0b0010100;
let Inst{20-16} = dst;
}
// A return through builtin_eh_return.
let isReturn = 1, isTerminator = 1, isBarrier = 1, hasSideEffects = 0,
isCodeGenOnly = 1, Defs = [PC], Uses = [R28], isPredicable = 0 in
def EH_RETURN_JMPR : T_JMPr<J2_jumpr>;
// Indirect tail-call.
let isPseudo = 1, isCall = 1, isReturn = 1, isBarrier = 1, isPredicable = 0,
isTerminator = 1, isCodeGenOnly = 1 in
def PS_tailcall_r : T_JMPr<J2_jumpr>;
//
// Direct tail-calls.
let isPseudo = 1, isCall = 1, isReturn = 1, isBarrier = 1, isPredicable = 0,
isTerminator = 1, isCodeGenOnly = 1 in
def PS_tailcall_i : Pseudo<(outs), (ins a30_2Imm:$dst), "", []>;
let isCodeGenOnly = 1, isPseudo = 1, Uses = [R30], hasSideEffects = 0 in
def PS_aligna : Pseudo<(outs IntRegs:$Rd), (ins u32_0Imm:$A), "", []>;
// Generate frameindex addresses. The main reason for the offset operand is
// that every instruction that is allowed to have frame index as an operand
// will then have that operand followed by an immediate operand (the offset).
// This simplifies the frame-index elimination code.
//
let isMoveImm = 1, isAsCheapAsAMove = 1, isReMaterializable = 1,
isPseudo = 1, isCodeGenOnly = 1, hasSideEffects = 0, isExtendable = 1,
isExtentSigned = 1, opExtentBits = 16, opExtentAlign = 0 in {
let opExtendable = 2 in
def PS_fi : Pseudo<(outs IntRegs:$Rd),
(ins IntRegs:$fi, s32_0Imm:$off), "">;
let opExtendable = 3 in
def PS_fia : Pseudo<(outs IntRegs:$Rd),
(ins IntRegs:$Rs, IntRegs:$fi, s32_0Imm:$off), "">;
}
class CondStr<string CReg, bit True, bit New> {
string S = "if (" # !if(True,"","!") # CReg # !if(New,".new","") # ") ";
}
class JumpOpcStr<string Mnemonic, bit New, bit Taken> {
string S = Mnemonic # !if(Taken, ":t", ":nt");
}
let isBranch = 1, isIndirectBranch = 1, Defs = [PC], isPredicated = 1,
hasSideEffects = 0, InputType = "reg", cofMax1 = 1 in
class T_JMPr_c <bit PredNot, bit isPredNew, bit isTak, InstHexagon rootInst>
: InstHexagon<(outs), (ins PredRegs:$src, IntRegs:$dst),
CondStr<"$src", !if(PredNot,0,1), isPredNew>.S #
JumpOpcStr<"jumpr", isPredNew, isTak>.S # " $dst",
[], "", rootInst.Itinerary, rootInst.Type>, OpcodeHexagon {
let isTaken = isTak;
let isPredicatedFalse = PredNot;
let isPredicatedNew = isPredNew;
bits<2> src;
bits<5> dst;
let IClass = 0b0101;
let Inst{27-22} = 0b001101;
let Inst{21} = PredNot;
let Inst{20-16} = dst;
let Inst{12} = isTak;
let Inst{11} = isPredNew;
let Inst{9-8} = src;
}
let isTerminator = 1, hasSideEffects = 0, isReturn = 1, isCodeGenOnly = 1,
isBarrier = 1, BaseOpcode = "JMPret" in {
def PS_jmpret : T_JMPr<J2_jumpr>, PredNewRel;
def PS_jmprett : T_JMPr_c<0, 0, 0, J2_jumprt>, PredNewRel;
def PS_jmpretf : T_JMPr_c<1, 0, 0, J2_jumprf>, PredNewRel;
def PS_jmprettnew : T_JMPr_c<0, 1, 0, J2_jumprtnew>, PredNewRel;
def PS_jmpretfnew : T_JMPr_c<1, 1, 0, J2_jumprfnew>, PredNewRel;
def PS_jmprettnewpt : T_JMPr_c<0, 1, 1, J2_jumprtnewpt>, PredNewRel;
def PS_jmpretfnewpt : T_JMPr_c<1, 1, 1, J2_jumprfnewpt>, PredNewRel;
}
//defm V6_vtran2x2_map : HexagonMapping<(outs HvxVR:$Vy32, HvxVR:$Vx32), (ins HvxVR:$Vx32in, IntRegs:$Rt32), "vtrans2x2(${Vy32},${Vx32},${Rt32})", (V6_vshuff HvxVR:$Vy32, HvxVR:$Vx32, HvxVR:$Vx32in, IntRegs:$Rt32)>;
// The reason for the custom inserter is to record all ALLOCA instructions
// in MachineFunctionInfo.
let Defs = [R29], hasSideEffects = 1 in
def PS_alloca: Pseudo <(outs IntRegs:$Rd),
(ins IntRegs:$Rs, u32_0Imm:$A), "", []>;
// Load predicate.
let isExtendable = 1, opExtendable = 2, isExtentSigned = 1, opExtentBits = 13,
isCodeGenOnly = 1, isPseudo = 1, hasSideEffects = 0 in
def LDriw_pred : LDInst<(outs PredRegs:$dst),
(ins IntRegs:$addr, s32_0Imm:$off),
".error \"should not emit\"", []>;
// Load modifier.
let isExtendable = 1, opExtendable = 2, isExtentSigned = 1, opExtentBits = 13,
isCodeGenOnly = 1, isPseudo = 1, hasSideEffects = 0 in
def LDriw_mod : LDInst<(outs ModRegs:$dst),
(ins IntRegs:$addr, s32_0Imm:$off),
".error \"should not emit\"", []>;
let isCodeGenOnly = 1, isPseudo = 1 in
def PS_pselect: InstHexagon<(outs DoubleRegs:$Rd),
(ins PredRegs:$Pu, DoubleRegs:$Rs, DoubleRegs:$Rt),
".error \"should not emit\" ", [], "", A2_tfrpt.Itinerary, TypeALU32_2op>;
let isBranch = 1, isBarrier = 1, Defs = [PC], hasSideEffects = 0,
isPredicable = 1,
isExtendable = 1, opExtendable = 0, isExtentSigned = 1,
opExtentBits = 24, opExtentAlign = 2, InputType = "imm" in
class T_JMP: InstHexagon<(outs), (ins b30_2Imm:$dst),
"jump $dst",
[], "", J2_jump.Itinerary, TypeJ>, OpcodeHexagon {
bits<24> dst;
let IClass = 0b0101;
let Inst{27-25} = 0b100;
let Inst{24-16} = dst{23-15};
let Inst{13-1} = dst{14-2};
}
// Restore registers and dealloc return function call.
let isCall = 1, isBarrier = 1, isReturn = 1, isTerminator = 1,
Defs = [R29, R30, R31, PC], isPredicable = 0, isAsmParserOnly = 1 in {
def RESTORE_DEALLOC_RET_JMP_V4 : T_JMP;
let isExtended = 1, opExtendable = 0 in
def RESTORE_DEALLOC_RET_JMP_V4_EXT : T_JMP;
let Defs = [R14, R15, R28, R29, R30, R31, PC] in {
def RESTORE_DEALLOC_RET_JMP_V4_PIC : T_JMP;
let isExtended = 1, opExtendable = 0 in
def RESTORE_DEALLOC_RET_JMP_V4_EXT_PIC : T_JMP;
}
}
// Restore registers and dealloc frame before a tail call.
let isCall = 1, Defs = [R29, R30, R31, PC], isAsmParserOnly = 1 in {
def RESTORE_DEALLOC_BEFORE_TAILCALL_V4 : T_Call<"">, PredRel;
let isExtended = 1, opExtendable = 0 in
def RESTORE_DEALLOC_BEFORE_TAILCALL_V4_EXT : T_Call<"">, PredRel;
let Defs = [R14, R15, R28, R29, R30, R31, PC] in {
def RESTORE_DEALLOC_BEFORE_TAILCALL_V4_PIC : T_Call<"">, PredRel;
let isExtended = 1, opExtendable = 0 in
def RESTORE_DEALLOC_BEFORE_TAILCALL_V4_EXT_PIC : T_Call<"">, PredRel;
}
}
// Save registers function call.
let isCall = 1, Uses = [R29, R31], isAsmParserOnly = 1 in {
def SAVE_REGISTERS_CALL_V4 : T_Call<"">, PredRel;
let isExtended = 1, opExtendable = 0 in
def SAVE_REGISTERS_CALL_V4_EXT : T_Call<"">, PredRel;
let Defs = [P0] in
def SAVE_REGISTERS_CALL_V4STK : T_Call<"">, PredRel;
let Defs = [P0], isExtended = 1, opExtendable = 0 in
def SAVE_REGISTERS_CALL_V4STK_EXT : T_Call<"">, PredRel;
let Defs = [R14, R15, R28] in
def SAVE_REGISTERS_CALL_V4_PIC : T_Call<"">, PredRel;
let Defs = [R14, R15, R28], isExtended = 1, opExtendable = 0 in
def SAVE_REGISTERS_CALL_V4_EXT_PIC : T_Call<"">, PredRel;
let Defs = [R14, R15, R28, P0] in
def SAVE_REGISTERS_CALL_V4STK_PIC : T_Call<"">, PredRel;
let Defs = [R14, R15, R28, P0], isExtended = 1, opExtendable = 0 in
def SAVE_REGISTERS_CALL_V4STK_EXT_PIC : T_Call<"">, PredRel;
}
// Vector store pseudos
let Predicates = [HasV60T, UseHVX], isPseudo = 1, isCodeGenOnly = 1,
mayStore = 1, accessSize = HVXVectorAccess, hasSideEffects = 0 in
class STrivv_template<RegisterClass RC, InstHexagon rootInst>
: InstHexagon<(outs), (ins IntRegs:$addr, s32_0Imm:$off, RC:$src),
"", [], "", rootInst.Itinerary, rootInst.Type>;
def PS_vstorerw_ai: STrivv_template<HvxWR, V6_vS32b_ai>,
Requires<[HasV60T,UseHVX]>;
def PS_vstorerw_nt_ai: STrivv_template<HvxWR, V6_vS32b_nt_ai>,
Requires<[HasV60T,UseHVX]>;
def PS_vstorerwu_ai: STrivv_template<HvxWR, V6_vS32Ub_ai>,
Requires<[HasV60T,UseHVX]>;
let isPseudo = 1, isCodeGenOnly = 1, mayStore = 1, hasSideEffects = 0 in
def PS_vstorerq_ai: Pseudo<(outs),
(ins IntRegs:$Rs, s32_0Imm:$Off, HvxQR:$Qt), "", []>,
Requires<[HasV60T,UseHVX]>;
// Vector load pseudos
let Predicates = [HasV60T, UseHVX], isPseudo = 1, isCodeGenOnly = 1,
mayLoad = 1, accessSize = HVXVectorAccess, hasSideEffects = 0 in
class LDrivv_template<RegisterClass RC, InstHexagon rootInst>
: InstHexagon<(outs RC:$dst), (ins IntRegs:$addr, s32_0Imm:$off),
"", [], "", rootInst.Itinerary, rootInst.Type>;
def PS_vloadrw_ai: LDrivv_template<HvxWR, V6_vL32b_ai>,
Requires<[HasV60T,UseHVX]>;
def PS_vloadrw_nt_ai: LDrivv_template<HvxWR, V6_vL32b_nt_ai>,
Requires<[HasV60T,UseHVX]>;
def PS_vloadrwu_ai: LDrivv_template<HvxWR, V6_vL32Ub_ai>,
Requires<[HasV60T,UseHVX]>;
let isPseudo = 1, isCodeGenOnly = 1, mayLoad = 1, hasSideEffects = 0 in
def PS_vloadrq_ai: Pseudo<(outs HvxQR:$Qd),
(ins IntRegs:$Rs, s32_0Imm:$Off), "", []>,
Requires<[HasV60T,UseHVX]>;
let isCodeGenOnly = 1, isPseudo = 1, hasSideEffects = 0 in
class VSELInst<dag outs, dag ins, InstHexagon rootInst>
: InstHexagon<outs, ins, "", [], "", rootInst.Itinerary, rootInst.Type>;
def PS_vselect: VSELInst<(outs HvxVR:$dst),
(ins PredRegs:$src1, HvxVR:$src2, HvxVR:$src3), V6_vcmov>,
Requires<[HasV60T,UseHVX]>;
def PS_wselect: VSELInst<(outs HvxWR:$dst),
(ins PredRegs:$src1, HvxWR:$src2, HvxWR:$src3), V6_vccombine>,
Requires<[HasV60T,UseHVX]>;
let hasSideEffects = 0, isReMaterializable = 1, isPseudo = 1,
isCodeGenOnly = 1 in {
def PS_qtrue: InstHexagon<(outs HvxQR:$Qd), (ins), "", [], "",
V6_veqw.Itinerary, TypeCVI_VA>;
def PS_qfalse: InstHexagon<(outs HvxQR:$Qd), (ins), "", [], "",
V6_vgtw.Itinerary, TypeCVI_VA>;
}
// Store predicate.
let isExtendable = 1, opExtendable = 1, isExtentSigned = 1, opExtentBits = 13,
isCodeGenOnly = 1, isPseudo = 1, hasSideEffects = 0 in
def STriw_pred : STInst<(outs),
(ins IntRegs:$addr, s32_0Imm:$off, PredRegs:$src1),
".error \"should not emit\"", []>;
// Store modifier.
let isExtendable = 1, opExtendable = 1, isExtentSigned = 1, opExtentBits = 13,
isCodeGenOnly = 1, isPseudo = 1, hasSideEffects = 0 in
def STriw_mod : STInst<(outs),
(ins IntRegs:$addr, s32_0Imm:$off, ModRegs:$src1),
".error \"should not emit\"", []>;
let isExtendable = 1, opExtendable = 1, opExtentBits = 6,
isAsmParserOnly = 1 in
def TFRI64_V4 : InstHexagon<(outs DoubleRegs:$dst),
(ins u64_0Imm:$src1),
"$dst = #$src1", [], "",
A2_combineii.Itinerary, TypeALU32_2op>, OpcodeHexagon;
// Hexagon doesn't have a vector multiply with C semantics.
// Instead, generate a pseudo instruction that gets expaneded into two
// scalar MPYI instructions.
// This is expanded by ExpandPostRAPseudos.
let isPseudo = 1 in
def PS_vmulw : PseudoM<(outs DoubleRegs:$Rd),
(ins DoubleRegs:$Rs, DoubleRegs:$Rt), "", []>;
let isPseudo = 1 in
def PS_vmulw_acc : PseudoM<(outs DoubleRegs:$Rd),
(ins DoubleRegs:$Rx, DoubleRegs:$Rs, DoubleRegs:$Rt), "", [],
"$Rd = $Rx">;
def DuplexIClass0: InstDuplex < 0 >;
def DuplexIClass1: InstDuplex < 1 >;
def DuplexIClass2: InstDuplex < 2 >;
let isExtendable = 1 in {
def DuplexIClass3: InstDuplex < 3 >;
def DuplexIClass4: InstDuplex < 4 >;
def DuplexIClass5: InstDuplex < 5 >;
def DuplexIClass6: InstDuplex < 6 >;
def DuplexIClass7: InstDuplex < 7 >;
}
def DuplexIClass8: InstDuplex < 8 >;
def DuplexIClass9: InstDuplex < 9 >;
def DuplexIClassA: InstDuplex < 0xA >;
def DuplexIClassB: InstDuplex < 0xB >;
def DuplexIClassC: InstDuplex < 0xC >;
def DuplexIClassD: InstDuplex < 0xD >;
def DuplexIClassE: InstDuplex < 0xE >;
def DuplexIClassF: InstDuplex < 0xF >;