SDTCisInt<4>]>;
def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
def SDT_MipsCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
-def SDT_ExtractLOHI : SDTypeProfile<1, 2, [SDTCisInt<0>, SDTCisVT<1, untyped>,
- SDTCisVT<2, i32>]>;
-def SDT_InsertLOHI : SDTypeProfile<1, 2, [SDTCisVT<0, untyped>,
- SDTCisVT<1, i32>,
- SDTCisSameAs<1, 2>]>;
+def SDT_MFLOHI : SDTypeProfile<1, 1, [SDTCisInt<0>, SDTCisVT<1, untyped>]>;
+def SDT_MTLOHI : SDTypeProfile<1, 2, [SDTCisVT<0, untyped>,
+ SDTCisInt<1>, SDTCisSameAs<1, 2>]>;
def SDT_MipsMultDiv : SDTypeProfile<1, 2, [SDTCisVT<0, untyped>, SDTCisInt<1>,
SDTCisSameAs<1, 2>]>;
def SDT_MipsMAddMSub : SDTypeProfile<1, 3,
[SDNPHasChain, SDNPSideEffect,
SDNPOptInGlue, SDNPOutGlue]>;
-// Node used to extract integer from LO/HI register.
-def ExtractLOHI : SDNode<"MipsISD::ExtractLOHI", SDT_ExtractLOHI>;
+// Nodes used to extract LO/HI registers.
+def MipsMFHI : SDNode<"MipsISD::MFHI", SDT_MFLOHI>;
+def MipsMFLO : SDNode<"MipsISD::MFLO", SDT_MFLOHI>;
// Node used to insert 32-bit integers to LOHI register pair.
-def InsertLOHI : SDNode<"MipsISD::InsertLOHI", SDT_InsertLOHI>;
+def MipsMTLOHI : SDNode<"MipsISD::MTLOHI", SDT_MTLOHI>;
// Mult nodes.
def MipsMult : SDNode<"MipsISD::Mult", SDT_MipsMultDiv>;
// Wrapper node patterns give the instruction selector a chance to replace
// target constant nodes that would otherwise remain unchanged with ADDiu
// nodes. Without these wrapper node patterns, the following conditional move
-// instrucion is emitted when function cmov2 in test/CodeGen/Mips/cmov.ll is
+// instruction is emitted when function cmov2 in test/CodeGen/Mips/cmov.ll is
// compiled:
// movn %got(d)($gp), %got(c)($gp), $4
// This instruction is illegal since movn can take only register operands.
def NoNaNsFPMath : Predicate<"TM.Options.NoNaNsFPMath">,
AssemblerPredicate<"FeatureMips32">;
def HasStdEnc : Predicate<"Subtarget.hasStandardEncoding()">,
- AssemblerPredicate<"!FeatureMips16,!FeatureMicroMips">;
+ AssemblerPredicate<"!FeatureMips16">;
def NotDSP : Predicate<"!Subtarget.hasDSP()">;
def InMicroMips : Predicate<"Subtarget.inMicroMipsMode()">,
AssemblerPredicate<"FeatureMicroMips">;
def uimm10 : Operand<i32> {
}
-def simm16_64 : Operand<i64>;
+def simm16_64 : Operand<i64> {
+ let DecoderMethod = "DecodeSimm16";
+}
// Unsigned Operand
def uimm5 : Operand<i32> {
let PrintMethod = "printUnsignedImm";
}
+def pcrel16 : Operand<i32> {
+}
+
def MipsMemAsmOperand : AsmOperandClass {
let Name = "Mem";
let ParserMethod = "parseMemOperand";
}
+def MipsInvertedImmoperand : AsmOperandClass {
+ let Name = "InvNum";
+ let RenderMethod = "addImmOperands";
+ let ParserMethod = "parseInvNum";
+}
+
def PtrRegAsmOperand : AsmOperandClass {
let Name = "PtrReg";
let ParserMethod = "parsePtrReg";
}
+
+def InvertedImOperand : Operand<i32> {
+ let ParserMatchClass = MipsInvertedImmoperand;
+}
+
// Address operand
def mem : Operand<iPTR> {
let PrintMethod = "printMemOperand";
}
// Conditional Branch
-class CBranch<string opstr, PatFrag cond_op, RegisterOperand RO> :
- InstSE<(outs), (ins RO:$rs, RO:$rt, brtarget:$offset),
+class CBranch<string opstr, DAGOperand opnd, PatFrag cond_op,
+ RegisterOperand RO> :
+ InstSE<(outs), (ins RO:$rs, RO:$rt, opnd:$offset),
!strconcat(opstr, "\t$rs, $rt, $offset"),
[(brcond (i32 (cond_op RO:$rs, RO:$rt)), bb:$offset)], IIBranch,
- FrmI> {
+ FrmI, opstr> {
let isBranch = 1;
let isTerminator = 1;
let hasDelaySlot = 1;
let Defs = [AT];
}
-class CBranchZero<string opstr, PatFrag cond_op, RegisterOperand RO> :
- InstSE<(outs), (ins RO:$rs, brtarget:$offset),
+class CBranchZero<string opstr, DAGOperand opnd, PatFrag cond_op,
+ RegisterOperand RO> :
+ InstSE<(outs), (ins RO:$rs, opnd:$offset),
!strconcat(opstr, "\t$rs, $offset"),
- [(brcond (i32 (cond_op RO:$rs, 0)), bb:$offset)], IIBranch, FrmI> {
+ [(brcond (i32 (cond_op RO:$rs, 0)), bb:$offset)], IIBranch,
+ FrmI, opstr> {
let isBranch = 1;
let isTerminator = 1;
let hasDelaySlot = 1;
// Jump
class JumpFJ<DAGOperand opnd, string opstr, SDPatternOperator operator,
- SDPatternOperator targetoperator> :
+ SDPatternOperator targetoperator, string bopstr> :
InstSE<(outs), (ins opnd:$target), !strconcat(opstr, "\t$target"),
- [(operator targetoperator:$target)], IIBranch, FrmJ> {
+ [(operator targetoperator:$target)], IIBranch, FrmJ, bopstr> {
let isTerminator=1;
let isBarrier=1;
let hasDelaySlot = 1;
// Base class for indirect branch and return instruction classes.
let isTerminator=1, isBarrier=1, hasDelaySlot = 1 in
-class JumpFR<RegisterOperand RO, SDPatternOperator operator = null_frag>:
- InstSE<(outs), (ins RO:$rs), "jr\t$rs", [(operator RO:$rs)], IIBranch, FrmR>;
+class JumpFR<string opstr, RegisterOperand RO,
+ SDPatternOperator operator = null_frag>:
+ InstSE<(outs), (ins RO:$rs), "jr\t$rs", [(operator RO:$rs)], IIBranch,
+ FrmR, opstr>;
// Indirect branch
-class IndirectBranch<RegisterOperand RO>: JumpFR<RO, brind> {
+class IndirectBranch<string opstr, RegisterOperand RO> :
+ JumpFR<opstr, RO, brind> {
let isBranch = 1;
let isIndirectBranch = 1;
}
// Return instruction
-class RetBase<RegisterOperand RO>: JumpFR<RO> {
+class RetBase<string opstr, RegisterOperand RO>: JumpFR<opstr, RO> {
let isReturn = 1;
let isCodeGenOnly = 1;
let hasCtrlDep = 1;
// Jump and Link (Call)
let isCall=1, hasDelaySlot=1, Defs = [RA] in {
- class JumpLink<string opstr> :
- InstSE<(outs), (ins calltarget:$target), !strconcat(opstr, "\t$target"),
- [(MipsJmpLink imm:$target)], IIBranch, FrmJ> {
+ class JumpLink<string opstr, DAGOperand opnd> :
+ InstSE<(outs), (ins opnd:$target), !strconcat(opstr, "\t$target"),
+ [(MipsJmpLink imm:$target)], IIBranch, FrmJ, opstr> {
let DecoderMethod = "DecodeJumpTarget";
}
class JumpLinkReg<string opstr, RegisterOperand RO>:
InstSE<(outs RO:$rd), (ins RO:$rs), !strconcat(opstr, "\t$rd, $rs"),
- [], IIBranch, FrmR>;
+ [], IIBranch, FrmR, opstr>;
- class BGEZAL_FT<string opstr, RegisterOperand RO> :
- InstSE<(outs), (ins RO:$rs, brtarget:$offset),
- !strconcat(opstr, "\t$rs, $offset"), [], IIBranch, FrmI>;
+ class BGEZAL_FT<string opstr, DAGOperand opnd, RegisterOperand RO> :
+ InstSE<(outs), (ins RO:$rs, opnd:$offset),
+ !strconcat(opstr, "\t$rs, $offset"), [], IIBranch, FrmI, opstr>;
}
let hasSideEffects = 1 in
class TEQ_FT<string opstr, RegisterOperand RO> :
InstSE<(outs), (ins RO:$rs, RO:$rt, uimm16:$code_),
- !strconcat(opstr, "\t$rs, $rt, $code_"), [], NoItinerary, FrmI>;
+ !strconcat(opstr, "\t$rs, $rt, $code_"), [], NoItinerary,
+ FrmI, opstr>;
class TEQI_FT<string opstr, RegisterOperand RO> :
InstSE<(outs), (ins RO:$rs, uimm16:$imm16),
- !strconcat(opstr, "\t$rs, $imm16"), [], NoItinerary, FrmOther>;
+ !strconcat(opstr, "\t$rs, $imm16"), [], NoItinerary, FrmOther, opstr>;
// Mul, Div
class Mult<string opstr, InstrItinClass itin, RegisterOperand RO,
list<Register> DefRegs> :
}
// Move from Hi/Lo
-class MoveFromLOHI<string opstr, RegisterOperand RO, list<Register> UseRegs>:
- InstSE<(outs RO:$rd), (ins), !strconcat(opstr, "\t$rd"), [], IIHiLo,
- FrmR, opstr> {
- let Uses = UseRegs;
+class PseudoMFLOHI<RegisterClass DstRC, RegisterClass SrcRC, SDNode OpNode>
+ : PseudoSE<(outs DstRC:$rd), (ins SrcRC:$hilo),
+ [(set DstRC:$rd, (OpNode SrcRC:$hilo))], IIHiLo>;
+
+class MoveFromLOHI<string opstr, RegisterOperand RO, Register UseReg>:
+ InstSE<(outs RO:$rd), (ins), !strconcat(opstr, "\t$rd"), [], IIHiLo, FrmR,
+ opstr> {
+ let Uses = [UseReg];
let neverHasSideEffects = 1;
}
+class PseudoMTLOHI<RegisterClass DstRC, RegisterClass SrcRC>
+ : PseudoSE<(outs DstRC:$lohi), (ins SrcRC:$lo, SrcRC:$hi),
+ [(set DstRC:$lohi, (MipsMTLOHI SrcRC:$lo, SrcRC:$hi))], IIHiLo>;
+
class MoveToLOHI<string opstr, RegisterOperand RO, list<Register> DefRegs>:
InstSE<(outs), (ins RO:$rs), !strconcat(opstr, "\t$rs"), [], IIHiLo,
FrmR, opstr> {
ADD_FM<0, 0x21>;
def SUBu : MMRel, ArithLogicR<"subu", GPR32Opnd, 0, IIArith, sub>,
ADD_FM<0, 0x23>;
+let Defs = [HI0, LO0] in
def MUL : MMRel, ArithLogicR<"mul", GPR32Opnd, 1, IIImul, mul>,
ADD_FM<0x1c, 2>;
def ADD : MMRel, ArithLogicR<"add", GPR32Opnd>, ADD_FM<0, 0x20>;
def SW : Store<"sw", GPR32Opnd, store, IIStore>, MMRel, LW_FM<0x2b>;
/// load/store left/right
+let Predicates = [NotInMicroMips] in {
def LWL : LoadLeftRight<"lwl", MipsLWL, GPR32Opnd, IILoad>, LW_FM<0x22>;
def LWR : LoadLeftRight<"lwr", MipsLWR, GPR32Opnd, IILoad>, LW_FM<0x26>;
def SWL : StoreLeftRight<"swl", MipsSWL, GPR32Opnd, IIStore>, LW_FM<0x2a>;
def SWR : StoreLeftRight<"swr", MipsSWR, GPR32Opnd, IIStore>, LW_FM<0x2e>;
+}
def SYNC : SYNC_FT, SYNC_FM;
-def TEQ : TEQ_FT<"teq", GPR32Opnd>, TEQ_FM<0x34>;
-def TGE : TEQ_FT<"tge", GPR32Opnd>, TEQ_FM<0x30>;
-def TGEU : TEQ_FT<"tgeu", GPR32Opnd>, TEQ_FM<0x31>;
-def TLT : TEQ_FT<"tlt", GPR32Opnd>, TEQ_FM<0x32>;
-def TLTU : TEQ_FT<"tltu", GPR32Opnd>, TEQ_FM<0x33>;
-def TNE : TEQ_FT<"tne", GPR32Opnd>, TEQ_FM<0x36>;
-
-def TEQI : TEQI_FT<"teqi", GPR32Opnd>, TEQI_FM<0xc>;
-def TGEI : TEQI_FT<"tgei", GPR32Opnd>, TEQI_FM<0x8>;
-def TGEIU : TEQI_FT<"tgeiu", GPR32Opnd>, TEQI_FM<0x9>;
-def TLTI : TEQI_FT<"tlti", GPR32Opnd>, TEQI_FM<0xa>;
-def TTLTIU : TEQI_FT<"tltiu", GPR32Opnd>, TEQI_FM<0xb>;
-def TNEI : TEQI_FT<"tnei", GPR32Opnd>, TEQI_FM<0xe>;
+def TEQ : MMRel, TEQ_FT<"teq", GPR32Opnd>, TEQ_FM<0x34>;
+def TGE : MMRel, TEQ_FT<"tge", GPR32Opnd>, TEQ_FM<0x30>;
+def TGEU : MMRel, TEQ_FT<"tgeu", GPR32Opnd>, TEQ_FM<0x31>;
+def TLT : MMRel, TEQ_FT<"tlt", GPR32Opnd>, TEQ_FM<0x32>;
+def TLTU : MMRel, TEQ_FT<"tltu", GPR32Opnd>, TEQ_FM<0x33>;
+def TNE : MMRel, TEQ_FT<"tne", GPR32Opnd>, TEQ_FM<0x36>;
+
+def TEQI : MMRel, TEQI_FT<"teqi", GPR32Opnd>, TEQI_FM<0xc>;
+def TGEI : MMRel, TEQI_FT<"tgei", GPR32Opnd>, TEQI_FM<0x8>;
+def TGEIU : MMRel, TEQI_FT<"tgeiu", GPR32Opnd>, TEQI_FM<0x9>;
+def TLTI : MMRel, TEQI_FT<"tlti", GPR32Opnd>, TEQI_FM<0xa>;
+def TTLTIU : MMRel, TEQI_FT<"tltiu", GPR32Opnd>, TEQI_FM<0xb>;
+def TNEI : MMRel, TEQI_FT<"tnei", GPR32Opnd>, TEQI_FM<0xe>;
def BREAK : BRK_FT<"break">, BRK_FM<0xd>;
def SYSCALL : SYS_FT<"syscall">, SYS_FM<0xc>;
def SC : SCBase<"sc", GPR32Opnd>, LW_FM<0x38>;
/// Jump and Branch Instructions
-def J : JumpFJ<jmptarget, "j", br, bb>, FJ<2>,
+def J : MMRel, JumpFJ<jmptarget, "j", br, bb, "j">, FJ<2>,
Requires<[RelocStatic, HasStdEnc]>, IsBranch;
-def JR : IndirectBranch<GPR32Opnd>, MTLO_FM<8>;
-def BEQ : CBranch<"beq", seteq, GPR32Opnd>, BEQ_FM<4>;
-def BNE : CBranch<"bne", setne, GPR32Opnd>, BEQ_FM<5>;
-def BGEZ : CBranchZero<"bgez", setge, GPR32Opnd>, BGEZ_FM<1, 1>;
-def BGTZ : CBranchZero<"bgtz", setgt, GPR32Opnd>, BGEZ_FM<7, 0>;
-def BLEZ : CBranchZero<"blez", setle, GPR32Opnd>, BGEZ_FM<6, 0>;
-def BLTZ : CBranchZero<"bltz", setlt, GPR32Opnd>, BGEZ_FM<1, 0>;
+def JR : MMRel, IndirectBranch<"jr", GPR32Opnd>, MTLO_FM<8>;
+def BEQ : MMRel, CBranch<"beq", brtarget, seteq, GPR32Opnd>, BEQ_FM<4>;
+def BNE : MMRel, CBranch<"bne", brtarget, setne, GPR32Opnd>, BEQ_FM<5>;
+def BGEZ : MMRel, CBranchZero<"bgez", brtarget, setge, GPR32Opnd>,
+ BGEZ_FM<1, 1>;
+def BGTZ : MMRel, CBranchZero<"bgtz", brtarget, setgt, GPR32Opnd>,
+ BGEZ_FM<7, 0>;
+def BLEZ : MMRel, CBranchZero<"blez", brtarget, setle, GPR32Opnd>,
+ BGEZ_FM<6, 0>;
+def BLTZ : MMRel, CBranchZero<"bltz", brtarget, setlt, GPR32Opnd>,
+ BGEZ_FM<1, 0>;
def B : UncondBranch<BEQ>;
-def JAL : JumpLink<"jal">, FJ<3>;
-def JALR : JumpLinkReg<"jalr", GPR32Opnd>, JALR_FM;
+def JAL : MMRel, JumpLink<"jal", calltarget>, FJ<3>;
+def JALR : MMRel, JumpLinkReg<"jalr", GPR32Opnd>, JALR_FM;
def JALRPseudo : JumpLinkRegPseudo<GPR32Opnd, JALR, RA>;
-def BGEZAL : BGEZAL_FT<"bgezal", GPR32Opnd>, BGEZAL_FM<0x11>;
-def BLTZAL : BGEZAL_FT<"bltzal", GPR32Opnd>, BGEZAL_FM<0x10>;
+def BGEZAL : MMRel, BGEZAL_FT<"bgezal", brtarget, GPR32Opnd>, BGEZAL_FM<0x11>;
+def BLTZAL : MMRel, BGEZAL_FT<"bltzal", brtarget, GPR32Opnd>, BGEZAL_FM<0x10>;
def BAL_BR : BAL_BR_Pseudo<BGEZAL>;
-def TAILCALL : JumpFJ<calltarget, "j", MipsTailCall, imm>, FJ<2>, IsTailCall;
-def TAILCALL_R : JumpFR<GPR32Opnd, MipsTailCall>, MTLO_FM<8>, IsTailCall;
+def TAILCALL : MMRel, JumpFJ<calltarget, "j", MipsTailCall, imm, "tcall">,
+ FJ<2>, IsTailCall;
+def TAILCALL_R : MMRel, JumpFR<"tcallr", GPR32Opnd, MipsTailCall>, MTLO_FM<8>,
+ IsTailCall;
-def RET : RetBase<GPR32Opnd>, MTLO_FM<8>;
+def RET : MMRel, RetBase<"ret", GPR32Opnd>, MTLO_FM<8>;
// Exception handling related node and instructions.
// The conversion sequence is:
MULT_FM<0, 0x18>;
def MULTu : MMRel, Mult<"multu", IIImult, GPR32Opnd, [HI0, LO0]>,
MULT_FM<0, 0x19>;
-def PseudoMULT : MultDivPseudo<MULT, ACC64, GPR32Opnd, MipsMult, IIImult>;
-def PseudoMULTu : MultDivPseudo<MULTu, ACC64, GPR32Opnd, MipsMultu, IIImult>;
-def SDIV : Div<"div", IIIdiv, GPR32Opnd, [HI0, LO0]>, MULT_FM<0, 0x1a>;
-def UDIV : Div<"divu", IIIdiv, GPR32Opnd, [HI0, LO0]>, MULT_FM<0, 0x1b>;
-def PseudoSDIV : MultDivPseudo<SDIV, ACC64, GPR32Opnd, MipsDivRem, IIIdiv,
- 0, 1, 1>;
-def PseudoUDIV : MultDivPseudo<UDIV, ACC64, GPR32Opnd, MipsDivRemU, IIIdiv,
- 0, 1, 1>;
+def SDIV : MMRel, Div<"div", IIIdiv, GPR32Opnd, [HI0, LO0]>,
+ MULT_FM<0, 0x1a>;
+def UDIV : MMRel, Div<"divu", IIIdiv, GPR32Opnd, [HI0, LO0]>,
+ MULT_FM<0, 0x1b>;
def MTHI : MMRel, MoveToLOHI<"mthi", GPR32Opnd, [HI0]>, MTLO_FM<0x11>;
def MTLO : MMRel, MoveToLOHI<"mtlo", GPR32Opnd, [LO0]>, MTLO_FM<0x13>;
-def MFHI : MMRel, MoveFromLOHI<"mfhi", GPR32Opnd, [HI0]>, MFLO_FM<0x10>;
-def MFLO : MMRel, MoveFromLOHI<"mflo", GPR32Opnd, [LO0]>, MFLO_FM<0x12>;
+def MFHI : MMRel, MoveFromLOHI<"mfhi", GPR32Opnd, AC0>, MFLO_FM<0x10>;
+def MFLO : MMRel, MoveFromLOHI<"mflo", GPR32Opnd, AC0>, MFLO_FM<0x12>;
/// Sign Ext In Register Instructions.
def SEB : MMRel, SignExtInReg<"seb", i8, GPR32Opnd>, SEB_FM<0x10, 0x20>;
def MADDU : MMRel, MArithR<"maddu", 1>, MULT_FM<0x1c, 1>;
def MSUB : MMRel, MArithR<"msub">, MULT_FM<0x1c, 4>;
def MSUBU : MMRel, MArithR<"msubu">, MULT_FM<0x1c, 5>;
+
+let Predicates = [HasStdEnc, NotDSP] in {
+def PseudoMULT : MultDivPseudo<MULT, ACC64, GPR32Opnd, MipsMult, IIImult>;
+def PseudoMULTu : MultDivPseudo<MULTu, ACC64, GPR32Opnd, MipsMultu, IIImult>;
+def PseudoMFHI : PseudoMFLOHI<GPR32, ACC64, MipsMFHI>;
+def PseudoMFLO : PseudoMFLOHI<GPR32, ACC64, MipsMFLO>;
+def PseudoMTLOHI : PseudoMTLOHI<ACC64, GPR32>;
def PseudoMADD : MAddSubPseudo<MADD, MipsMAdd>;
def PseudoMADDU : MAddSubPseudo<MADDU, MipsMAddu>;
def PseudoMSUB : MAddSubPseudo<MSUB, MipsMSub>;
def PseudoMSUBU : MAddSubPseudo<MSUBU, MipsMSubu>;
+}
+
+def PseudoSDIV : MultDivPseudo<SDIV, ACC64, GPR32Opnd, MipsDivRem, IIIdiv,
+ 0, 1, 1>;
+def PseudoUDIV : MultDivPseudo<UDIV, ACC64, GPR32Opnd, MipsDivRemU, IIIdiv,
+ 0, 1, 1>;
def RDHWR : ReadHardware<GPR32Opnd, HWRegsOpnd>, RDHWR_FM;
def : InstAlias<"tlt $rs, $rt", (TLT GPR32Opnd:$rs, GPR32Opnd:$rt, 0), 1>;
def : InstAlias<"tltu $rs, $rt", (TLTU GPR32Opnd:$rs, GPR32Opnd:$rt, 0), 1>;
def : InstAlias<"tne $rs, $rt", (TNE GPR32Opnd:$rs, GPR32Opnd:$rt, 0), 1>;
+def : InstAlias<"sub, $rd, $rs, $imm",
+ (ADDi GPR32Opnd:$rd, GPR32Opnd:$rs, InvertedImOperand:$imm)>;
+def : InstAlias<"subu, $rd, $rs, $imm",
+ (ADDiu GPR32Opnd:$rd, GPR32Opnd:$rs, InvertedImOperand:$imm)>;
+
//===----------------------------------------------------------------------===//
// Assembler Pseudo Instructions
//===----------------------------------------------------------------------===//
!strconcat(instr_asm, "\t$rt, $imm32")> ;
def LoadAddr32Imm : LoadAddressImm<"la", uimm5, GPR32Opnd>;
-
-
//===----------------------------------------------------------------------===//
// Arbitrary patterns that map to one or more instructions
//===----------------------------------------------------------------------===//
// bswap pattern
def : MipsPat<(bswap GPR32:$rt), (ROTR (WSBH GPR32:$rt), 16)>;
-// mflo/hi patterns.
-def : MipsPat<(i32 (ExtractLOHI ACC64:$ac, imm:$lohi_idx)),
- (EXTRACT_SUBREG ACC64:$ac, imm:$lohi_idx)>;
-
// Load halfword/word patterns.
let AddedComplexity = 40 in {
let Predicates = [HasStdEnc] in {