// 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",
+ ComplexPattern<i32, 2, "SelectShiftImmShifterOperand",
[shl,srl,sra,rotr]> {
let EncoderMethod = "getT2SORegOpValue";
let PrintMethod = "printT2SOOperand";
// 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);
+ return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), SDLoc(N),
+ 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);
+ return CurDAG->getTargetConstant(-((int)N->getZExtValue()), SDLoc(N),
+ MVT::i32);
}]>;
// so_imm_notSext_XFORM - Return a so_imm value packed into the format
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);
+ return CurDAG->getTargetConstant(~N16bitSignExt, SDLoc(N), MVT::i32);
}]>;
// t2_so_imm - Match a 32-bit immediate operand, which is an
// t2addrmode_imm12 := reg + imm12
def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
-def t2addrmode_imm12 : Operand<i32>,
+def t2addrmode_imm12 : MemOperand,
ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
let PrintMethod = "printAddrModeImm12Operand<false>";
let EncoderMethod = "getAddrModeImm12OpValue";
// t2addrmode_posimm8 := reg + imm8
def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";}
-def t2addrmode_posimm8 : Operand<i32> {
+def t2addrmode_posimm8 : MemOperand {
let PrintMethod = "printT2AddrModeImm8Operand<false>";
let EncoderMethod = "getT2AddrModeImm8OpValue";
let DecoderMethod = "DecodeT2AddrModeImm8";
// t2addrmode_negimm8 := reg - imm8
def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
-def t2addrmode_negimm8 : Operand<i32>,
+def t2addrmode_negimm8 : MemOperand,
ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
let PrintMethod = "printT2AddrModeImm8Operand<false>";
let EncoderMethod = "getT2AddrModeImm8OpValue";
// t2addrmode_imm8 := reg +/- imm8
def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
-class T2AddrMode_Imm8 : Operand<i32>,
+class T2AddrMode_Imm8 : MemOperand,
ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
let EncoderMethod = "getT2AddrModeImm8OpValue";
let DecoderMethod = "DecodeT2AddrModeImm8";
let PrintMethod = "printT2AddrModeImm8Operand<true>";
}
-def t2am_imm8_offset : Operand<i32>,
+def t2am_imm8_offset : MemOperand,
ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
[], [SDNPWantRoot]> {
let PrintMethod = "printT2AddrModeImm8OffsetOperand";
// t2addrmode_imm8s4 := reg +/- (imm8 << 2)
def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
-class T2AddrMode_Imm8s4 : Operand<i32> {
+class T2AddrMode_Imm8s4 : MemOperand {
let EncoderMethod = "getT2AddrModeImm8s4OpValue";
let DecoderMethod = "DecodeT2AddrModeImm8s4";
let ParserMatchClass = MemImm8s4OffsetAsmOperand;
}
def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
-def t2am_imm8s4_offset : Operand<i32> {
+def t2am_imm8s4_offset : MemOperand {
let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
let EncoderMethod = "getT2Imm8s4OpValue";
let DecoderMethod = "DecodeT2Imm8S4";
def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
let Name = "MemImm0_1020s4Offset";
}
-def t2addrmode_imm0_1020s4 : Operand<i32>,
+def t2addrmode_imm0_1020s4 : MemOperand,
ComplexPattern<i32, 2, "SelectT2AddrModeExclusive"> {
let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
// t2addrmode_so_reg := reg + (reg << imm2)
def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
-def t2addrmode_so_reg : Operand<i32>,
+def t2addrmode_so_reg : MemOperand,
ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
let PrintMethod = "printT2AddrModeSoRegOperand";
let EncoderMethod = "getT2AddrModeSORegOpValue";
// Addresses for the TBB/TBH instructions.
def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
-def addrmode_tbb : Operand<i32> {
+def addrmode_tbb : MemOperand {
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> {
+def addrmode_tbh : MemOperand {
let PrintMethod = "printAddrModeTBH";
let ParserMatchClass = addrmode_tbh_asmoperand;
let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
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", []> {
+ IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []>,
+ Requires<[HasT2ExtractPack, IsThumb2]> {
bits<2> rot;
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0100;
let DecoderMethod = "DecodeT2Adr";
}
-let neverHasSideEffects = 1, isReMaterializable = 1 in
+let hasSideEffects = 0, isReMaterializable = 1 in
def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
4, IIC_iALUi, []>, Sched<[WriteALU, ReadALU]>;
let hasSideEffects = 1 in
def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
- (ins i32imm:$label, nohash_imm:$id, pred:$p),
+ (ins i32imm:$label, pred:$p),
4, IIC_iALUi,
[]>, Sched<[WriteALU, ReadALU]>;
// Loads with zero extension
defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
- GPR, UnOpFrag<(zextloadi16 node:$Src)>>;
+ GPRnopc, UnOpFrag<(zextloadi16 node:$Src)>>;
defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
- GPR, UnOpFrag<(zextloadi8 node:$Src)>>;
+ GPRnopc, UnOpFrag<(zextloadi8 node:$Src)>>;
// Loads with sign extension
defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
- GPR, UnOpFrag<(sextloadi16 node:$Src)>>;
+ GPRnopc, UnOpFrag<(sextloadi16 node:$Src)>>;
defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
- GPR, UnOpFrag<(sextloadi8 node:$Src)>>;
+ GPRnopc, UnOpFrag<(sextloadi8 node:$Src)>>;
-let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
+let mayLoad = 1, hasSideEffects = 0, hasExtraDefRegAllocReq = 1 in {
// Load doubleword
def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
(ins t2addrmode_imm8s4:$addr),
IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
-} // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
+} // mayLoad = 1, hasSideEffects = 0, hasExtraDefRegAllocReq = 1
// zextload i1 -> zextload i8
def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
// Indexed loads
-let mayLoad = 1, neverHasSideEffects = 1 in {
+let mayLoad = 1, hasSideEffects = 0 in {
def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
(ins t2addrmode_imm8_pre:$addr),
AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
(ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
"ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
-} // mayLoad = 1, neverHasSideEffects = 1
+} // mayLoad = 1, hasSideEffects = 0
// LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
// Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
// Store doubleword
-let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
+let mayStore = 1, hasSideEffects = 0, hasExtraSrcRegAllocReq = 1 in
def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
(ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
// Indexed stores
-let mayStore = 1, neverHasSideEffects = 1 in {
+let mayStore = 1, hasSideEffects = 0 in {
def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
(ins GPRnopc:$Rt, t2addrmode_imm8_pre:$addr),
AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
"strb", "\t$Rt, $addr!",
"$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []>;
-} // mayStore = 1, neverHasSideEffects = 1
+} // mayStore = 1, hasSideEffects = 0
def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
(ins GPRnopc:$Rt, addr_offset_none:$Rn,
}
}
-let neverHasSideEffects = 1 in {
+let hasSideEffects = 0 in {
let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
-} // neverHasSideEffects
+} // hasSideEffects
//===----------------------------------------------------------------------===//
// Move Instructions.
//
-let neverHasSideEffects = 1 in
+let hasSideEffects = 0 in
def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr,
"mov", ".w\t$Rd, $Rm", []>, Sched<[WriteALU]> {
let Inst{31-27} = 0b11101;
BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
+// A simple right-shift can also be used in most cases (the exception is the
+// SXTH operations with a rotate of 24: there the non-contiguous bits are
+// relevant).
+def : Pat<(add rGPR:$Rn, (sext_inreg (srl rGPR:$Rm, rot_imm:$rot), i8)),
+ (t2SXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : Pat<(add rGPR:$Rn, (sext_inreg (srl rGPR:$Rm, imm8_or_16:$rot), i16)),
+ (t2SXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+
// Zero extenders
let AddedComplexity = 16 in {
def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
+
+def : Pat<(add rGPR:$Rn, (and (srl rGPR:$Rm, rot_imm:$rot), 0xFF)),
+ (t2UXTAB rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : Pat<(add rGPR:$Rn, (and (srl rGPR:$Rm, imm8_or_16:$rot), 0xFFFF)),
+ (t2UXTAH rGPR:$Rn, rGPR:$Rm, rot_imm:$rot)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
}
+
//===----------------------------------------------------------------------===//
// Arithmetic Instructions.
//
let Inst{15} = 0;
}
+// A8.8.247 UDF - Undefined (Encoding T2)
+def t2UDF : T2XI<(outs), (ins imm0_65535:$imm16), IIC_Br, "udf.w\t$imm16",
+ [(int_arm_undefined imm0_65535:$imm16)]> {
+ bits<16> imm16;
+ let Inst{31-29} = 0b111;
+ let Inst{28-27} = 0b10;
+ let Inst{26-20} = 0b1111111;
+ let Inst{19-16} = imm16{15-12};
+ let Inst{15} = 0b1;
+ let Inst{14-12} = 0b010;
+ let Inst{11-0} = imm16{11-0};
+}
+
// A8.6.18 BFI - Bitfield insert (Encoding T1)
let Constraints = "$src = $Rd" in {
def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
}
// Extra precision multiplies with low / high results
-let neverHasSideEffects = 1 in {
+let hasSideEffects = 0 in {
let isCommutable = 1 in {
def t2SMULL : T2MulLong<0b000, 0b0000,
(outs rGPR:$RdLo, rGPR:$RdHi),
(ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
"umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
Requires<[IsThumb2, HasThumb2DSP]>;
-} // neverHasSideEffects
+} // hasSideEffects
// Rounding variants of the below included for disassembly only
def WB : T2ThreeReg<(outs rGPR:$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;
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;
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:$Rm, i16)), (i32 16))))]>,
+ []>,
Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
def WT : T2FourReg<
(outs rGPR:$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:$Rm, (i32 16))), (i32 16))))]>,
+ []>,
Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
// Conditional moves
-let neverHasSideEffects = 1 in {
+let hasSideEffects = 0 in {
let isCommutable = 1, isSelect = 1 in
def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
RegConstraint<"$false = $dst">;
} // isCodeGenOnly = 1
-} // neverHasSideEffects
+} // hasSideEffects
//===----------------------------------------------------------------------===//
// Atomic operations intrinsics
let hasSideEffects = 1 in {
def t2DMB : T2I<(outs), (ins memb_opt:$opt), NoItinerary,
"dmb", "\t$opt", [(int_arm_dmb (i32 imm0_15:$opt))]>,
- Requires<[HasDB]> {
+ Requires<[IsThumb, HasDB]> {
bits<4> opt;
let Inst{31-4} = 0xf3bf8f5;
let Inst{3-0} = opt;
}
-}
def t2DSB : T2I<(outs), (ins memb_opt:$opt), NoItinerary,
"dsb", "\t$opt", [(int_arm_dsb (i32 imm0_15:$opt))]>,
- Requires<[HasDB]> {
+ Requires<[IsThumb, HasDB]> {
bits<4> opt;
let Inst{31-4} = 0xf3bf8f4;
let Inst{3-0} = opt;
}
def t2ISB : T2I<(outs), (ins instsyncb_opt:$opt), NoItinerary,
- "isb", "\t$opt", []>, Requires<[HasDB]> {
+ "isb", "\t$opt", [(int_arm_isb (i32 imm0_15:$opt))]>,
+ Requires<[IsThumb, HasDB]> {
bits<4> opt;
let Inst{31-4} = 0xf3bf8f6;
let Inst{3-0} = opt;
}
+}
class T2I_ldrex<bits<4> opcod, dag oops, dag iops, AddrMode am, int sz,
InstrItinClass itin, string opc, string asm, string cstr,
(ins addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
"ldrexd", "\t$Rt, $Rt2, $addr", "",
- [], {?, ?, ?, ?}> {
+ [], {?, ?, ?, ?}>,
+ Requires<[IsThumb2, IsNotMClass]> {
bits<4> Rt2;
let Inst{11-8} = Rt2;
}
(ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
"strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
- {?, ?, ?, ?}> {
+ {?, ?, ?, ?}>,
+ Requires<[IsThumb2, IsNotMClass]> {
bits<4> Rt2;
let Inst{11-8} = Rt2;
}
let AsmMatchConverter = "cvtThumbBranches";
}
-let isNotDuplicable = 1, isIndirectBranch = 1 in {
+let Size = 4, isNotDuplicable = 1, isIndirectBranch = 1 in {
def t2BR_JT : t2PseudoInst<(outs),
- (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
+ (ins GPR:$target, GPR:$index, i32imm:$jt),
0, IIC_Br,
- [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>,
+ [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt)]>,
Sched<[WriteBr]>;
-// FIXME: Add a non-pc based case that can be predicated.
+// FIXME: Add a case that can be predicated.
def t2TBB_JT : t2PseudoInst<(outs),
- (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>,
+ (ins GPR:$base, GPR:$index, i32imm:$jt, i32imm:$pclbl), 0, IIC_Br, []>,
Sched<[WriteBr]>;
def t2TBH_JT : t2PseudoInst<(outs),
- (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>,
+ (ins GPR:$base, GPR:$index, i32imm:$jt, i32imm:$pclbl), 0, IIC_Br, []>,
Sched<[WriteBr]>;
def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
// Branch and Exchange Jazelle -- for disassembly only
// Rm = Inst{19-16}
-def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func", []>,
- Sched<[WriteBr]> {
+def t2BXJ : T2I<(outs), (ins GPRnopc:$func), NoItinerary, "bxj", "\t$func", []>,
+ Sched<[WriteBr]>, Requires<[IsThumb2, IsNotMClass]> {
bits<4> func;
let Inst{31-27} = 0b11110;
let Inst{26} = 0;
// 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), []> {
+ !strconcat("cps", asm_op), []>,
+ Requires<[IsThumb2, IsNotMClass]> {
bits<2> imod;
bits<3> iflags;
bits<5> mode;
// A6.3.4 Branches and miscellaneous control
// Table A6-14 Change Processor State, and hint instructions
-def t2HINT : T2I<(outs), (ins imm0_239:$imm), NoItinerary, "hint", ".w\t$imm",[]> {
+def t2HINT : T2I<(outs), (ins imm0_239:$imm), NoItinerary, "hint", ".w\t$imm",
+ [(int_arm_hint imm0_239:$imm)]> {
bits<8> imm;
let Inst{31-3} = 0b11110011101011111000000000000;
let Inst{7-0} = imm;
let Predicates = [IsThumb2, HasV8];
}
-def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
+def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt",
+ [(int_arm_dbg imm0_15:$opt)]> {
bits<4> opt;
let Inst{31-20} = 0b111100111010;
let Inst{19-16} = 0b1111;
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> {
+ : T2I<oops, iops, itin, opc, asm, pattern>,
+ Requires<[IsThumb2,IsNotMClass]> {
bits<5> mode;
let Inst{31-25} = 0b1110100;
let Inst{24-23} = Op;
// 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> {
+ : T2I<oops, iops, itin, opc, asm, pattern>,
+ Requires<[IsThumb2,IsNotMClass]> {
let Inst{31-20} = op31_20{11-0};
bits<4> Rn;
def t2SUBS_PC_LR : T2I <(outs), (ins imm0_255:$imm), NoItinerary,
"subs", "\tpc, lr, $imm",
[(ARMintretflag imm0_255:$imm)]>,
- Requires<[IsThumb2]> {
+ Requires<[IsThumb2,IsNotMClass]> {
let Inst{31-8} = 0b111100111101111010001111;
bits<8> imm;
let Inst{7-0} = imm;
}
+// Hypervisor Call is a system instruction.
+let isCall = 1 in {
+def t2HVC : T2XI <(outs), (ins imm0_65535:$imm16), IIC_Br, "hvc.w\t$imm16", []>,
+ Requires<[IsThumb2, HasVirtualization]>, Sched<[WriteBr]> {
+ bits<16> imm16;
+ let Inst{31-20} = 0b111101111110;
+ let Inst{19-16} = imm16{15-12};
+ let Inst{15-12} = 0b1000;
+ let Inst{11-0} = imm16{11-0};
+}
+}
+
+// Alias for HVC without the ".w" optional width specifier
+def : t2InstAlias<"hvc\t$imm16", (t2HVC imm0_65535:$imm16)>;
+
+// ERET - Return from exception in Hypervisor mode.
+// B9.3.3, B9.3.20: ERET is an alias for "SUBS PC, LR, #0" in an implementation that
+// includes virtualization extensions.
+def t2ERET : InstAlias<"eret${p}", (t2SUBS_PC_LR 0, pred:$p)>,
+ Requires<[IsThumb2, HasVirtualization]>;
+
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//
def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
Requires<[IsThumb2, UseMovt]>;
-def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
- (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
+def : T2Pat<(ARMWrapperJT tjumptable:$dst),
+ (t2LEApcrelJT tjumptable:$dst)>;
// Pseudo instruction that combines ldr from constpool and add pc. This should
// be expanded into two instructions late to allow if-conversion and
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">, Requires<[PreV8]>;
-defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">, Requires<[PreV8]>;
-defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">, Requires<[PreV8]>;
-defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">, Requires<[PreV8]>;
+defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2">, Requires<[PreV8,IsThumb2]>;
+defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">, Requires<[PreV8,IsThumb2]>;
+defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">, Requires<[PreV8,IsThumb2]>;
+defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">, Requires<[PreV8,IsThumb2]>;
//===----------------------------------------------------------------------===//
bits<4> Rd;
let Inst{31-12} = 0b11110011111011111000;
let Inst{11-8} = Rd;
- let Inst{7-0} = 0b0000;
+ let Inst{7-0} = 0b00000000;
}
def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
bits<4> Rd;
let Inst{31-12} = 0b11110011111111111000;
let Inst{11-8} = Rd;
- let Inst{7-0} = 0b0000;
+ let Inst{7-0} = 0b00000000;
+}
+
+def t2MRSbanked : T2I<(outs rGPR:$Rd), (ins banked_reg:$banked),
+ NoItinerary, "mrs", "\t$Rd, $banked", []>,
+ Requires<[IsThumb, HasVirtualization]> {
+ bits<6> banked;
+ bits<4> Rd;
+
+ let Inst{31-21} = 0b11110011111;
+ let Inst{20} = banked{5}; // R bit
+ let Inst{19-16} = banked{3-0};
+ let Inst{15-12} = 0b1000;
+ let Inst{11-8} = Rd;
+ let Inst{7-5} = 0b001;
+ let Inst{4} = banked{4};
+ let Inst{3-0} = 0b0000;
}
+
// M class MRS.
//
// This MRS has a mask field in bits 7-0 and can take more values than
// the A/R class (a full msr_mask).
-def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary,
- "mrs", "\t$Rd, $mask", []>,
+def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$SYSm), NoItinerary,
+ "mrs", "\t$Rd, $SYSm", []>,
Requires<[IsThumb,IsMClass]> {
bits<4> Rd;
- bits<8> mask;
+ bits<8> SYSm;
let Inst{31-12} = 0b11110011111011111000;
let Inst{11-8} = Rd;
- let Inst{19-16} = 0b1111;
- let Inst{7-0} = mask;
+ let Inst{7-0} = SYSm;
+
+ let Unpredictable{20-16} = 0b11111;
+ let Unpredictable{13} = 0b1;
}
let Inst{7-0} = 0;
}
+// However, the MSR (banked register) system instruction (ARMv7VE) *does* have a
+// separate encoding (distinguished by bit 5.
+def t2MSRbanked : T2I<(outs), (ins banked_reg:$banked, rGPR:$Rn),
+ NoItinerary, "msr", "\t$banked, $Rn", []>,
+ Requires<[IsThumb, HasVirtualization]> {
+ bits<6> banked;
+ bits<4> Rn;
+
+ let Inst{31-21} = 0b11110011100;
+ let Inst{20} = banked{5}; // R bit
+ let Inst{19-16} = Rn;
+ let Inst{15-12} = 0b1000;
+ let Inst{11-8} = banked{3-0};
+ let Inst{7-5} = 0b001;
+ let Inst{4} = banked{4};
+ let Inst{3-0} = 0b0000;
+}
+
+
// M class MSR.
//
// Move from ARM core register to Special Register
let Inst{20} = 0b0;
let Inst{19-16} = Rn;
let Inst{15-12} = 0b1000;
- let Inst{11-0} = SYSm;
+ let Inst{11-10} = SYSm{11-10};
+ let Inst{9-8} = 0b00;
+ let Inst{7-0} = SYSm{7-0};
+
+ let Unpredictable{20} = 0b1;
+ let Unpredictable{13} = 0b1;
+ let Unpredictable{9-8} = 0b11;
}
let Inst{19-16} = CRn;
}
-class t2MovRRCopro<bits<4> Op, string opc, bit direction,
+class t2MovRRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
list<dag> pattern = []>
- : T2Cop<Op, (outs),
- (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
- opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm", pattern> {
+ : T2Cop<Op, oops, iops, opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm", pattern> {
let Inst{27-24} = 0b1100;
let Inst{23-21} = 0b010;
let Inst{20} = direction;
/* from ARM core register to coprocessor */
-def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
+def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0, (outs),
+ (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2,
+ c_imm:$CRm),
[(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)]> {
+def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0, (outs),
+ (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2,
+ c_imm:$CRm),
+ [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
+ GPR:$Rt2, imm:$CRm)]> {
let Predicates = [IsThumb2, PreV8];
}
/* from coprocessor to ARM core register */
-def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
+def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1, (outs GPR:$Rt, GPR:$Rt2),
+ (ins p_imm:$cop, imm0_15:$opc1, c_imm:$CRm)>;
-def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1> {
+def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1, (outs GPR:$Rt, GPR:$Rt2),
+ (ins p_imm:$cop, imm0_15:$opc1, c_imm:$CRm)> {
let Predicates = [IsThumb2, PreV8];
}
+//===----------------------------------------------------------------------===//
+// ARMv8.1 Privilege Access Never extension
+//
+// SETPAN #imm1
+
+def t2SETPAN : T1I<(outs), (ins imm0_1:$imm), NoItinerary, "setpan\t$imm", []>,
+ T1Misc<0b0110000>, Requires<[IsThumb2, HasV8, HasV8_1a]> {
+ bits<1> imm;
+
+ let Inst{4} = 0b1;
+ let Inst{3} = imm;
+ let Inst{2-0} = 0b000;
+
+ let Unpredictable{4} = 0b1;
+ let Unpredictable{2-0} = 0b111;
+}
+
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//
(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:$p)>;
+def : InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
+ (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
+ (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
+ (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : InstAlias<"sxtb16${p} $Rd, $Rm",
+ (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
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, $Rm",
def : t2InstAlias<"sxth${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:$p)>;
+def : InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
+ (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
+ (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
+ (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : InstAlias<"uxtb16${p} $Rd, $Rm",
+ (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+
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, $Rm",
// Extend instruction w/o the ".w" optional width specifier.
def : t2InstAlias<"uxtb${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 : InstAlias<"uxtb16${p} $Rd, $Rm$rot",
+ (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
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 : InstAlias<"sxtb16${p} $Rd, $Rm$rot",
+ (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
(t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
projects / oota-llvm.git / blobdiff