-//===- ARMInstrThumb2.td - Thumb2 support for ARM -------------------------===//
+//===-- ARMInstrThumb2.td - Thumb2 support for ARM ---------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
let ParserMatchClass = it_mask_asmoperand;
}
+// t2_shift_imm: An integer that encodes a shift amount and the type of shift
+// (asr or lsl). The 6-bit immediate encodes as:
+// {5} 0 ==> lsl
+// 1 asr
+// {4-0} imm5 shift amount.
+// asr #32 not allowed
+def t2_shift_imm : Operand<i32> {
+ let PrintMethod = "printShiftImmOperand";
+ let ParserMatchClass = ShifterImmAsmOperand;
+ let DecoderMethod = "DecodeT2ShifterImmOperand";
+}
+
// Shifted operands. No register controlled shifts for Thumb2.
// Note: We do not support rrx shifted operands yet.
def t2_so_reg : Operand<i32>, // reg imm
// t2_so_imm - Match a 32-bit immediate operand, which is an
// 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
// immediate splatted into multiple bytes of the word.
-def t2_so_imm_asmoperand : AsmOperandClass { let Name = "T2SOImm"; }
+def t2_so_imm_asmoperand : ImmAsmOperand { let Name = "T2SOImm"; }
def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
return ARM_AM::getT2SOImmVal(Imm) != -1;
}]> {
// t2_so_imm_not - Match an immediate that is a complement
// of a t2_so_imm.
-def t2_so_imm_not : Operand<i32>,
- PatLeaf<(imm), [{
+// Note: this pattern doesn't require an encoder method and such, as it's
+// only used on aliases (Pat<> and InstAlias<>). The actual encoding
+// is handled by the destination instructions, which use t2_so_imm.
+def t2_so_imm_not_asmoperand : AsmOperandClass { let Name = "T2SOImmNot"; }
+def t2_so_imm_not : Operand<i32>, PatLeaf<(imm), [{
return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
-}], t2_so_imm_not_XFORM>;
+}], t2_so_imm_not_XFORM> {
+ let ParserMatchClass = t2_so_imm_not_asmoperand;
+}
// t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
-def t2_so_imm_neg : Operand<i32>,
- PatLeaf<(imm), [{
+def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; }
+def t2_so_imm_neg : Operand<i32>, PatLeaf<(imm), [{
return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
-}], t2_so_imm_neg_XFORM>;
+}], t2_so_imm_neg_XFORM> {
+ let ParserMatchClass = t2_so_imm_neg_asmoperand;
+}
/// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
def imm0_4095 : Operand<i32>,
// t2ldrlabel := imm12
def t2ldrlabel : Operand<i32> {
let EncoderMethod = "getAddrModeImm12OpValue";
+ let PrintMethod = "printT2LdrLabelOperand";
}
+def t2ldr_pcrel_imm12_asmoperand : AsmOperandClass {let Name = "MemPCRelImm12";}
+def t2ldr_pcrel_imm12 : Operand<i32> {
+ let ParserMatchClass = t2ldr_pcrel_imm12_asmoperand;
+ // used for assembler pseudo instruction and maps to t2ldrlabel, so
+ // doesn't need encoder or print methods of its own.
+}
// ADR instruction labels.
def t2adrlabel : Operand<i32> {
}
+// t2addrmode_posimm8 := reg + imm8
+def MemPosImm8OffsetAsmOperand : AsmOperandClass {let Name="MemPosImm8Offset";}
+def t2addrmode_posimm8 : Operand<i32> {
+ let PrintMethod = "printT2AddrModeImm8Operand";
+ let EncoderMethod = "getT2AddrModeImm8OpValue";
+ let DecoderMethod = "DecodeT2AddrModeImm8";
+ let ParserMatchClass = MemPosImm8OffsetAsmOperand;
+ let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
+}
+
// t2addrmode_negimm8 := reg - imm8
def MemNegImm8OffsetAsmOperand : AsmOperandClass {let Name="MemNegImm8Offset";}
def t2addrmode_negimm8 : Operand<i32>,
}
// t2addrmode_imm8s4 := reg +/- (imm8 << 2)
+def MemImm8s4OffsetAsmOperand : AsmOperandClass {let Name = "MemImm8s4Offset";}
def t2addrmode_imm8s4 : Operand<i32> {
let PrintMethod = "printT2AddrModeImm8s4Operand";
let EncoderMethod = "getT2AddrModeImm8s4OpValue";
let DecoderMethod = "DecodeT2AddrModeImm8s4";
+ let ParserMatchClass = MemImm8s4OffsetAsmOperand;
let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
}
+def t2am_imm8s4_offset_asmoperand : AsmOperandClass { let Name = "Imm8s4"; }
def t2am_imm8s4_offset : Operand<i32> {
let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
+ let EncoderMethod = "getT2Imm8s4OpValue";
let DecoderMethod = "DecodeT2Imm8S4";
}
+// t2addrmode_imm0_1020s4 := reg + (imm8 << 2)
+def MemImm0_1020s4OffsetAsmOperand : AsmOperandClass {
+ let Name = "MemImm0_1020s4Offset";
+}
+def t2addrmode_imm0_1020s4 : Operand<i32> {
+ let PrintMethod = "printT2AddrModeImm0_1020s4Operand";
+ let EncoderMethod = "getT2AddrModeImm0_1020s4OpValue";
+ let DecoderMethod = "DecodeT2AddrModeImm0_1020s4";
+ let ParserMatchClass = MemImm0_1020s4OffsetAsmOperand;
+ let MIOperandInfo = (ops GPRnopc:$base, i32imm:$offsimm);
+}
+
// t2addrmode_so_reg := reg + (reg << imm2)
+def t2addrmode_so_reg_asmoperand : AsmOperandClass {let Name="T2MemRegOffset";}
def t2addrmode_so_reg : Operand<i32>,
ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
let PrintMethod = "printT2AddrModeSoRegOperand";
let EncoderMethod = "getT2AddrModeSORegOpValue";
let DecoderMethod = "DecodeT2AddrModeSOReg";
+ let ParserMatchClass = t2addrmode_so_reg_asmoperand;
let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
}
-// t2addrmode_reg := reg
-// Used by load/store exclusive instructions. Useful to enable right assembly
-// parsing and printing. Not used for any codegen matching.
-//
-def t2addrmode_reg : Operand<i32> {
- let PrintMethod = "printAddrMode7Operand";
- let DecoderMethod = "DecodeGPRRegisterClass";
- let MIOperandInfo = (ops GPR);
+// Addresses for the TBB/TBH instructions.
+def addrmode_tbb_asmoperand : AsmOperandClass { let Name = "MemTBB"; }
+def addrmode_tbb : Operand<i32> {
+ let PrintMethod = "printAddrModeTBB";
+ let ParserMatchClass = addrmode_tbb_asmoperand;
+ let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
+}
+def addrmode_tbh_asmoperand : AsmOperandClass { let Name = "MemTBH"; }
+def addrmode_tbh : Operand<i32> {
+ let PrintMethod = "printAddrModeTBH";
+ let ParserMatchClass = addrmode_tbh_asmoperand;
+ let MIOperandInfo = (ops GPR:$Rn, rGPR:$Rm);
}
//===----------------------------------------------------------------------===//
}
-/// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
-/// unary operation that produces a value. These are predicable and can be
-/// changed to modify CPSR.
-multiclass T2I_un_irs<bits<4> opcod, string opc,
- InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
- PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
- // shifted imm
- def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
- opc, "\t$Rd, $imm",
- [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
- let isAsCheapAsAMove = Cheap;
- let isReMaterializable = ReMat;
- let Inst{31-27} = 0b11110;
- let Inst{25} = 0;
- let Inst{24-21} = opcod;
- let Inst{19-16} = 0b1111; // Rn
- let Inst{15} = 0;
- }
- // register
- def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
- opc, ".w\t$Rd, $Rm",
- [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
- let Inst{31-27} = 0b11101;
- let Inst{26-25} = 0b01;
- let Inst{24-21} = opcod;
- let Inst{19-16} = 0b1111; // Rn
- let Inst{14-12} = 0b000; // imm3
- let Inst{7-6} = 0b00; // imm2
- let Inst{5-4} = 0b00; // type
- }
- // shifted register
- def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
- opc, ".w\t$Rd, $ShiftedRm",
- [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
- let Inst{31-27} = 0b11101;
- let Inst{26-25} = 0b01;
- let Inst{24-21} = opcod;
- let Inst{19-16} = 0b1111; // Rn
- }
-}
-
/// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
/// binary operation that produces a value. These are predicable and can be
/// changed to modify CPSR.
InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
PatFrag opnode, string baseOpc, bit Commutable = 0> :
T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, baseOpc, Commutable, ".w"> {
+ // Assembler aliases w/ the ".w" suffix.
+ def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
+ (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
+ t2_so_imm:$imm, pred:$p,
+ cc_out:$s)>;
// Assembler aliases w/o the ".w" suffix.
def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
(!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
cc_out:$s)>;
// and with the optional destination operand, too.
+ def : t2InstAlias<!strconcat(opc, "${s}${p}.ri", " $Rdn, $imm"),
+ (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
+ t2_so_imm:$imm, pred:$p,
+ cc_out:$s)>;
def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
(!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
rGPR:$Rm, pred:$p,
/// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
/// instruction modifies the CPSR register.
-let hasPostISelHook = 1, isCodeGenOnly = 1, Defs = [CPSR] in {
-multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
- InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
- PatFrag opnode, bit Commutable = 0> {
+///
+/// These opcodes will be converted to the real non-S opcodes by
+/// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
+let hasPostISelHook = 1, Defs = [CPSR] in {
+multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
+ InstrItinClass iis, PatFrag opnode,
+ bit Commutable = 0> {
// shifted imm
- def ri : T2sTwoRegImm<
- (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
- opc, ".w\t$Rd, $Rn, $imm",
- [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
- let Inst{31-27} = 0b11110;
- let Inst{25} = 0;
- let Inst{24-21} = opcod;
- let Inst{15} = 0;
- }
+ def ri : t2PseudoInst<(outs rGPR:$Rd),
+ (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
+ 4, iii,
+ [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
+ t2_so_imm:$imm))]>;
// register
- def rr : T2sThreeReg<
- (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
- opc, ".w\t$Rd, $Rn, $Rm",
- [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, rGPR:$Rm))]> {
+ def rr : t2PseudoInst<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm, pred:$p),
+ 4, iir,
+ [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
+ rGPR:$Rm))]> {
let isCommutable = Commutable;
- let Inst{31-27} = 0b11101;
- let Inst{26-25} = 0b01;
- let Inst{24-21} = opcod;
- let Inst{14-12} = 0b000; // imm3
- let Inst{7-6} = 0b00; // imm2
- let Inst{5-4} = 0b00; // type
}
// shifted register
- def rs : T2sTwoRegShiftedReg<
- (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
- opc, ".w\t$Rd, $Rn, $ShiftedRm",
- [(set rGPR:$Rd, CPSR, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
- let Inst{31-27} = 0b11101;
- let Inst{26-25} = 0b01;
- let Inst{24-21} = opcod;
- }
+ def rs : t2PseudoInst<(outs rGPR:$Rd),
+ (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
+ 4, iis,
+ [(set rGPR:$Rd, CPSR, (opnode GPRnopc:$Rn,
+ t2_so_reg:$ShiftedRm))]>;
+}
+}
+
+/// T2I_rbin_s_is - Same as T2I_bin_s_irs, except selection DAG
+/// operands are reversed.
+let hasPostISelHook = 1, Defs = [CPSR] in {
+multiclass T2I_rbin_s_is<PatFrag opnode> {
+ // shifted imm
+ def ri : t2PseudoInst<(outs rGPR:$Rd),
+ (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
+ 4, IIC_iALUi,
+ [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
+ GPRnopc:$Rn))]>;
+ // shifted register
+ def rs : t2PseudoInst<(outs rGPR:$Rd),
+ (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
+ 4, IIC_iALUsi,
+ [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
+ GPRnopc:$Rn))]>;
}
}
// in particular for taking the address of a local.
let isReMaterializable = 1 in {
def ri : T2sTwoRegImm<
- (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
- opc, ".w\t$Rd, $Rn, $imm",
- [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
+ (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iALUi,
+ opc, ".w\t$Rd, $Rn, $imm",
+ [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_imm:$imm))]> {
let Inst{31-27} = 0b11110;
let Inst{25} = 0;
let Inst{24} = 1;
}
// 12-bit imm
def ri12 : T2I<
- (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
+ (outs GPRnopc:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
!strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
- [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
+ [(set GPRnopc:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
bits<4> Rd;
bits<4> Rn;
bits<12> imm;
let Inst{7-0} = imm{7-0};
}
// register
- def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iALUr,
- opc, ".w\t$Rd, $Rn, $Rm",
- [(set rGPR:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
+ def rr : T2sThreeReg<(outs GPRnopc:$Rd), (ins GPRnopc:$Rn, rGPR:$Rm),
+ IIC_iALUr, opc, ".w\t$Rd, $Rn, $Rm",
+ [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, rGPR:$Rm))]> {
let isCommutable = Commutable;
let Inst{31-27} = 0b11101;
let Inst{26-25} = 0b01;
}
// shifted register
def rs : T2sTwoRegShiftedReg<
- (outs rGPR:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
+ (outs GPRnopc:$Rd), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm),
IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
- [(set rGPR:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
+ [(set GPRnopc:$Rd, (opnode GPRnopc:$Rn, t2_so_reg:$ShiftedRm))]> {
let Inst{31-27} = 0b11101;
let Inst{26-25} = 0b01;
let Inst{24} = 1;
}
}
-/// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
-/// version is not needed since this is only for codegen.
-let hasPostISelHook = 1, isCodeGenOnly = 1, Defs = [CPSR] in {
-multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
- // shifted imm
- def ri : T2sTwoRegImm<
- (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
- opc, ".w\t$Rd, $Rn, $imm",
- [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
- let Inst{31-27} = 0b11110;
- let Inst{25} = 0;
- let Inst{24-21} = opcod;
- let Inst{15} = 0;
- }
- // shifted register
- def rs : T2sTwoRegShiftedReg<
- (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
- IIC_iALUsi, opc, "\t$Rd, $Rn, $ShiftedRm",
- [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
- let Inst{31-27} = 0b11101;
- let Inst{26-25} = 0b01;
- let Inst{24-21} = opcod;
- }
-}
-}
-
/// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
// rotate operation that produces a value.
multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode,
let DecoderMethod = "DecodeT2LoadShift";
}
- // FIXME: Is the pci variant actually needed?
+ // pci variant is very similar to i12, but supports negative offsets
+ // from the PC.
def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
opc, ".w\t$Rt, $addr",
[(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
// assembler.
def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
(ins t2adrlabel:$addr, pred:$p),
- IIC_iALUi, "adr{$p}.w\t$Rd, #$addr", []> {
+ IIC_iALUi, "adr{$p}.w\t$Rd, $addr", []> {
let Inst{31-27} = 0b11110;
let Inst{25-24} = 0b10;
// Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
let Inst{26} = addr{11};
let Inst{14-12} = addr{10-8};
let Inst{7-0} = addr{7-0};
+
+ let DecoderMethod = "DecodeT2Adr";
}
let neverHasSideEffects = 1, isReMaterializable = 1 in
// Load doubleword
def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
(ins t2addrmode_imm8s4:$addr),
- IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
+ IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", "", []>;
} // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
// zextload i1 -> zextload i8
// Indexed loads
let mayLoad = 1, neverHasSideEffects = 1 in {
-def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn),
+def t2LDR_PRE : T2Ipreldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
(ins t2addrmode_imm8:$addr),
AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
- "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
- []>;
+ "ldr", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
+ []> {
+ let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
+}
-def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn),
- (ins GPR:$base, t2am_imm8_offset:$addr),
- AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
- "ldr", "\t$Rt, [$Rn], $addr", "$base = $Rn",
- []>;
+def t2LDR_POST : T2Ipostldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
+ (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
+ AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
+ "ldr", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
-def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
+def t2LDRB_PRE : T2Ipreldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
(ins t2addrmode_imm8:$addr),
AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
- "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
- []>;
-def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
- (ins GPR:$base, t2am_imm8_offset:$addr),
- AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
- "ldrb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
- []>;
-
-def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
+ "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
+ []> {
+ let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
+}
+def t2LDRB_POST : T2Ipostldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
+ (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
+ AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
+ "ldrb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
+
+def t2LDRH_PRE : T2Ipreldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
(ins t2addrmode_imm8:$addr),
AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
- "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
- []>;
-def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
- (ins GPR:$base, t2am_imm8_offset:$addr),
- AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
- "ldrh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
- []>;
-
-def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
+ "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
+ []> {
+ let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
+}
+def t2LDRH_POST : T2Ipostldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
+ (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
+ AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
+ "ldrh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
+
+def t2LDRSB_PRE : T2Ipreldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
(ins t2addrmode_imm8:$addr),
AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
- "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
- []>;
-def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
- (ins GPR:$base, t2am_imm8_offset:$addr),
- AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
- "ldrsb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
- []>;
-
-def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
+ "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
+ []> {
+ let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
+}
+def t2LDRSB_POST : T2Ipostldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
+ (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
+ AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
+ "ldrsb", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
+
+def t2LDRSH_PRE : T2Ipreldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
(ins t2addrmode_imm8:$addr),
AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
- "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
- []>;
-def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
- (ins GPR:$base, t2am_imm8_offset:$addr),
- AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
- "ldrsh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
- []>;
+ "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn_wb",
+ []> {
+ let AsmMatchConverter = "cvtLdWriteBackRegT2AddrModeImm8";
+}
+def t2LDRSH_POST : T2Ipostldst<1, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
+ (ins addr_offset_none:$Rn, t2am_imm8_offset:$offset),
+ AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
+ "ldrsh", "\t$Rt, $Rn$offset", "$Rn = $Rn_wb", []>;
} // mayLoad = 1, neverHasSideEffects = 1
-// LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
-// for disassembly only.
+// LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110).
// Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
- : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
+ : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_posimm8:$addr), ii, opc,
"\t$Rt, $addr", []> {
+ bits<4> Rt;
+ bits<13> addr;
let Inst{31-27} = 0b11111;
let Inst{26-25} = 0b00;
let Inst{24} = signed;
let Inst{23} = 0;
let Inst{22-21} = type;
let Inst{20} = 1; // load
+ let Inst{19-16} = addr{12-9};
+ let Inst{15-12} = Rt;
let Inst{11} = 1;
let Inst{10-8} = 0b110; // PUW.
-
- bits<4> Rt;
- bits<13> addr;
- let Inst{15-12} = Rt;
- let Inst{19-16} = addr{12-9};
- let Inst{7-0} = addr{7-0};
+ let Inst{7-0} = addr{7-0};
}
def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
rGPR, BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
// Store doubleword
-let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
+let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
(ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
- IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
+ IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", "", []>;
// Indexed stores
-def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPRnopc:$base_wb),
- (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
- AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
- "str", "\t$Rt, [$Rn, $addr]!",
- "$Rn = $base_wb,@earlyclobber $base_wb",
- [(set GPRnopc:$base_wb,
- (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
-def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPRnopc:$base_wb),
- (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
- AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
- "str", "\t$Rt, [$Rn], $addr",
- "$Rn = $base_wb,@earlyclobber $base_wb",
- [(set GPRnopc:$base_wb,
- (post_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
-
-def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPRnopc:$base_wb),
- (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
+let mayStore = 1, neverHasSideEffects = 1 in {
+def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
+ (ins GPRnopc:$Rt, t2addrmode_imm8:$addr),
AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
- "strh", "\t$Rt, [$Rn, $addr]!",
- "$Rn = $base_wb,@earlyclobber $base_wb",
- [(set GPRnopc:$base_wb,
- (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
-
-def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPRnopc:$base_wb),
- (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
- AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
- "strh", "\t$Rt, [$Rn], $addr",
- "$Rn = $base_wb,@earlyclobber $base_wb",
- [(set GPRnopc:$base_wb,
- (post_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
+ "str", "\t$Rt, $addr!",
+ "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
+ let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
+}
+def t2STRH_PRE : T2Ipreldst<0, 0b01, 0, 1, (outs GPRnopc:$Rn_wb),
+ (ins rGPR:$Rt, t2addrmode_imm8:$addr),
+ AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
+ "strh", "\t$Rt, $addr!",
+ "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
+ let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
+}
-def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPRnopc:$base_wb),
- (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
+def t2STRB_PRE : T2Ipreldst<0, 0b00, 0, 1, (outs GPRnopc:$Rn_wb),
+ (ins rGPR:$Rt, t2addrmode_imm8:$addr),
AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
- "strb", "\t$Rt, [$Rn, $addr]!",
- "$Rn = $base_wb,@earlyclobber $base_wb",
- [(set GPRnopc:$base_wb,
- (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
+ "strb", "\t$Rt, $addr!",
+ "$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
+ let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
+}
+} // mayStore = 1, neverHasSideEffects = 1
-def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPRnopc:$base_wb),
- (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr),
+def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
+ (ins GPRnopc:$Rt, addr_offset_none:$Rn,
+ t2am_imm8_offset:$offset),
+ AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
+ "str", "\t$Rt, $Rn$offset",
+ "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
+ [(set GPRnopc:$Rn_wb,
+ (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
+ t2am_imm8_offset:$offset))]>;
+
+def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
+ (ins rGPR:$Rt, addr_offset_none:$Rn,
+ t2am_imm8_offset:$offset),
+ AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
+ "strh", "\t$Rt, $Rn$offset",
+ "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
+ [(set GPRnopc:$Rn_wb,
+ (post_truncsti16 rGPR:$Rt, addr_offset_none:$Rn,
+ t2am_imm8_offset:$offset))]>;
+
+def t2STRB_POST : T2Ipostldst<0, 0b00, 0, 0, (outs GPRnopc:$Rn_wb),
+ (ins rGPR:$Rt, addr_offset_none:$Rn,
+ t2am_imm8_offset:$offset),
AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
- "strb", "\t$Rt, [$Rn], $addr",
- "$Rn = $base_wb,@earlyclobber $base_wb",
- [(set GPRnopc:$base_wb,
- (post_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$addr))]>;
+ "strb", "\t$Rt, $Rn$offset",
+ "$Rn = $Rn_wb,@earlyclobber $Rn_wb",
+ [(set GPRnopc:$Rn_wb,
+ (post_truncsti8 rGPR:$Rt, addr_offset_none:$Rn,
+ t2am_imm8_offset:$offset))]>;
+
+// Pseudo-instructions for pattern matching the pre-indexed stores. We can't
+// put the patterns on the instruction definitions directly as ISel wants
+// the address base and offset to be separate operands, not a single
+// complex operand like we represent the instructions themselves. The
+// pseudos map between the two.
+let usesCustomInserter = 1,
+ Constraints = "$Rn = $Rn_wb,@earlyclobber $Rn_wb" in {
+def t2STR_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
+ (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
+ 4, IIC_iStore_ru,
+ [(set GPRnopc:$Rn_wb,
+ (pre_store rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
+def t2STRB_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
+ (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
+ 4, IIC_iStore_ru,
+ [(set GPRnopc:$Rn_wb,
+ (pre_truncsti8 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
+def t2STRH_preidx: t2PseudoInst<(outs GPRnopc:$Rn_wb),
+ (ins rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset, pred:$p),
+ 4, IIC_iStore_ru,
+ [(set GPRnopc:$Rn_wb,
+ (pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
+}
// STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
// only.
// ldrd / strd pre / post variants
// For disassembly only.
-def t2LDRD_PRE : T2Ii8s4Tied<1, 1, 1,
- (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
- (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
- "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
+def t2LDRD_PRE : T2Ii8s4<1, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
+ (ins t2addrmode_imm8s4:$addr), IIC_iLoad_d_ru,
+ "ldrd", "\t$Rt, $Rt2, $addr!", "$addr.base = $wb", []> {
+ let AsmMatchConverter = "cvtT2LdrdPre";
+ let DecoderMethod = "DecodeT2LDRDPreInstruction";
+}
-def t2LDRD_POST : T2Ii8s4Tied<0, 1, 1,
- (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
- (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
- "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
+def t2LDRD_POST : T2Ii8s4post<0, 1, 1, (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
+ (ins addr_offset_none:$addr, t2am_imm8s4_offset:$imm),
+ IIC_iLoad_d_ru, "ldrd", "\t$Rt, $Rt2, $addr$imm",
+ "$addr.base = $wb", []>;
-def t2STRD_PRE : T2Ii8s4Tied<1, 1, 0, (outs GPR:$wb),
- (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
- IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
+def t2STRD_PRE : T2Ii8s4<1, 1, 0, (outs GPR:$wb),
+ (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_imm8s4:$addr),
+ IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr!",
+ "$addr.base = $wb", []> {
+ let AsmMatchConverter = "cvtT2StrdPre";
+ let DecoderMethod = "DecodeT2STRDPreInstruction";
+}
-def t2STRD_POST : T2Ii8s4Tied<0, 1, 0, (outs GPR:$wb),
- (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
- IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
+def t2STRD_POST : T2Ii8s4post<0, 1, 0, (outs GPR:$wb),
+ (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr,
+ t2am_imm8s4_offset:$imm),
+ IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, $addr$imm",
+ "$addr.base = $wb", []>;
// T2Ipl (Preload Data/Instruction) signals the memory system of possible future
-// data/instruction access. These are for disassembly only.
+// data/instruction access.
// instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
// (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
let DecoderMethod = "DecodeT2LoadShift";
}
+ // FIXME: We should have a separate 'pci' variant here. As-is we represent
+ // it via the i12 variant, which it's related to, but that means we can
+ // represent negative immediates, which aren't legal for anything except
+ // the 'pci' case (Rn == 15).
}
defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
// Load / store multiple Instructions.
//
-multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
+multiclass thumb2_ld_mult<string asm, InstrItinClass itin,
InstrItinClass itin_upd, bit L_bit> {
def IA :
T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
let neverHasSideEffects = 1 in {
let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
-defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
+defm t2LDM : thumb2_ld_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
+
+multiclass thumb2_st_mult<string asm, InstrItinClass itin,
+ InstrItinClass itin_upd, bit L_bit> {
+ def IA :
+ T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
+ itin, !strconcat(asm, "${p}.w\t$Rn, $regs"), []> {
+ bits<4> Rn;
+ bits<16> regs;
+
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b00;
+ let Inst{24-23} = 0b01; // Increment After
+ let Inst{22} = 0;
+ let Inst{21} = 0; // No writeback
+ let Inst{20} = L_bit;
+ let Inst{19-16} = Rn;
+ let Inst{15} = 0;
+ let Inst{14} = regs{14};
+ let Inst{13} = 0;
+ let Inst{12-0} = regs{12-0};
+ }
+ def IA_UPD :
+ T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
+ itin_upd, !strconcat(asm, "${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
+ bits<4> Rn;
+ bits<16> regs;
+
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b00;
+ let Inst{24-23} = 0b01; // Increment After
+ let Inst{22} = 0;
+ let Inst{21} = 1; // Writeback
+ let Inst{20} = L_bit;
+ let Inst{19-16} = Rn;
+ let Inst{15} = 0;
+ let Inst{14} = regs{14};
+ let Inst{13} = 0;
+ let Inst{12-0} = regs{12-0};
+ }
+ def DB :
+ T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
+ itin, !strconcat(asm, "db${p}\t$Rn, $regs"), []> {
+ bits<4> Rn;
+ bits<16> regs;
+
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b00;
+ let Inst{24-23} = 0b10; // Decrement Before
+ let Inst{22} = 0;
+ let Inst{21} = 0; // No writeback
+ let Inst{20} = L_bit;
+ let Inst{19-16} = Rn;
+ let Inst{15} = 0;
+ let Inst{14} = regs{14};
+ let Inst{13} = 0;
+ let Inst{12-0} = regs{12-0};
+ }
+ def DB_UPD :
+ T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
+ itin_upd, !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
+ bits<4> Rn;
+ bits<16> regs;
+
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b00;
+ let Inst{24-23} = 0b10; // Decrement Before
+ let Inst{22} = 0;
+ let Inst{21} = 1; // Writeback
+ let Inst{20} = L_bit;
+ let Inst{19-16} = Rn;
+ let Inst{15} = 0;
+ let Inst{14} = regs{14};
+ let Inst{13} = 0;
+ let Inst{12-0} = regs{12-0};
+ }
+}
+
let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
-defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
+defm t2STM : thumb2_st_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
} // neverHasSideEffects
//
let neverHasSideEffects = 1 in
-def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
+def t2MOVr : T2sTwoReg<(outs GPRnopc:$Rd), (ins GPR:$Rm), IIC_iMOVr,
"mov", ".w\t$Rd, $Rm", []> {
let Inst{31-27} = 0b11101;
let Inst{26-25} = 0b01;
let Inst{14-12} = 0b000;
let Inst{7-4} = 0b0000;
}
+def : t2InstAlias<"mov${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
+ pred:$p, zero_reg)>;
+def : t2InstAlias<"movs${p}.w $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
+ pred:$p, CPSR)>;
+def : t2InstAlias<"movs${p} $Rd, $Rm", (t2MOVr GPRnopc:$Rd, GPR:$Rm,
+ pred:$p, CPSR)>;
// AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
let Inst{15} = 0;
}
-def : t2InstAlias<"mov${s}${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
- pred:$p, cc_out:$s)>;
+// cc_out is handled as part of the explicit mnemonic in the parser for 'mov'.
+// Use aliases to get that to play nice here.
+def : t2InstAlias<"movs${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
+ pred:$p, CPSR)>;
+def : t2InstAlias<"movs${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
+ pred:$p, CPSR)>;
+
+def : t2InstAlias<"mov${p}.w $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
+ pred:$p, zero_reg)>;
+def : t2InstAlias<"mov${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
+ pred:$p, zero_reg)>;
let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
let Inst{26} = imm{11};
let Inst{14-12} = imm{10-8};
let Inst{7-0} = imm{7-0};
+ let DecoderMethod = "DecodeT2MOVTWInstruction";
}
def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
let Inst{26} = imm{11};
let Inst{14-12} = imm{10-8};
let Inst{7-0} = imm{7-0};
+ let DecoderMethod = "DecodeT2MOVTWInstruction";
}
def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
-// TODO: SXT(A){B|H}16
-
// Zero extenders
let AddedComplexity = 16 in {
BinOpFrag<(sub node:$LHS, node:$RHS)>>;
// ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
-// FIXME: Eliminate them if we can write def : Pat patterns which defines
-// CPSR and the implicit def of CPSR is not needed.
-defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
- IIC_iALUi, IIC_iALUr, IIC_iALUsi,
+//
+// Currently, t2ADDS/t2SUBS are pseudo opcodes that exist only in the
+// selection DAG. They are "lowered" to real t2ADD/t2SUB opcodes by
+// AdjustInstrPostInstrSelection where we determine whether or not to
+// set the "s" bit based on CPSR liveness.
+//
+// FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
+// support for an optional CPSR definition that corresponds to the DAG
+// node's second value. We can then eliminate the implicit def of CPSR.
+defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
BinOpFrag<(ARMaddc node:$LHS, node:$RHS)>, 1>;
-defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
- IIC_iALUi, IIC_iALUr, IIC_iALUsi,
+defm t2SUBS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
let hasPostISelHook = 1 in {
// FIXME: Eliminate them if we can write def : Pat patterns which defines
// CPSR and the implicit def of CPSR is not needed.
-defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
- BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
+defm t2RSBS : T2I_rbin_s_is <BinOpFrag<(ARMsubc node:$LHS, node:$RHS)>>;
// (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
// The assume-no-carry-in form uses the negation of the input since add/sub
let Inst{7-4} = op7_4;
}
-// Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
-
+// Unsigned Sum of Absolute Differences [and Accumulate].
def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
(ins rGPR:$Rn, rGPR:$Rm),
NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
"usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
Requires<[IsThumb2, HasThumb2DSP]>;
-// Signed/Unsigned saturate -- for disassembly only
-
+// Signed/Unsigned saturate.
class T2SatI<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: T2I<oops, iops, itin, opc, asm, pattern> {
}
def t2SSAT: T2SatI<
- (outs rGPR:$Rd), (ins imm1_32:$sat_imm, rGPR:$Rn, shift_imm:$sh),
- NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
- [/* For disassembly only; pattern left blank */]> {
+ (outs rGPR:$Rd),
+ (ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
+ NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> {
let Inst{31-27} = 0b11110;
let Inst{25-22} = 0b1100;
let Inst{20} = 0;
let Inst{15} = 0;
+ let Inst{5} = 0;
}
def t2SSAT16: T2SatI<
(outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
- "ssat16", "\t$Rd, $sat_imm, $Rn",
- [/* For disassembly only; pattern left blank */]>,
+ "ssat16", "\t$Rd, $sat_imm, $Rn", []>,
Requires<[IsThumb2, HasThumb2DSP]> {
let Inst{31-27} = 0b11110;
let Inst{25-22} = 0b1100;
let Inst{21} = 1; // sh = '1'
let Inst{14-12} = 0b000; // imm3 = '000'
let Inst{7-6} = 0b00; // imm2 = '00'
+ let Inst{5-4} = 0b00;
}
def t2USAT: T2SatI<
- (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
- NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
- [/* For disassembly only; pattern left blank */]> {
+ (outs rGPR:$Rd),
+ (ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh),
+ NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> {
let Inst{31-27} = 0b11110;
let Inst{25-22} = 0b1110;
let Inst{20} = 0;
let Inst{15} = 0;
}
-def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn),
+def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn),
NoItinerary,
- "usat16", "\t$Rd, $sat_imm, $Rn",
- [/* For disassembly only; pattern left blank */]>,
+ "usat16", "\t$Rd, $sat_imm, $Rn", []>,
Requires<[IsThumb2, HasThumb2DSP]> {
- let Inst{31-27} = 0b11110;
- let Inst{25-22} = 0b1110;
+ let Inst{31-22} = 0b1111001110;
let Inst{20} = 0;
let Inst{15} = 0;
let Inst{21} = 1; // sh = '1'
let Inst{14-12} = 0b000; // imm3 = '000'
let Inst{7-6} = 0b00; // imm2 = '00'
+ let Inst{5-4} = 0b00;
}
def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
let msb{4-0} = imm{9-5};
let lsb{4-0} = imm{4-0};
}
-
- // GNU as only supports this form of bfi (w/ 4 arguments)
- let isAsmParserOnly = 1 in
- def t2BFI4p : T2TwoRegBitFI<(outs rGPR:$Rd),
- (ins rGPR:$src, rGPR:$Rn, lsb_pos_imm:$lsbit,
- width_imm:$width),
- IIC_iBITi, "bfi", "\t$Rd, $Rn, $lsbit, $width",
- []> {
- let Inst{31-27} = 0b11110;
- let Inst{26} = 0; // should be 0.
- let Inst{25} = 1;
- let Inst{24-20} = 0b10110;
- let Inst{15} = 0;
- let Inst{5} = 0; // should be 0.
-
- bits<5> lsbit;
- bits<5> width;
- let msb{4-0} = width; // Custom encoder => lsb+width-1
- let lsb{4-0} = lsbit;
- }
}
defm t2ORN : T2I_bin_irs<0b0011, "orn",
BinOpFrag<(or node:$LHS, (not node:$RHS))>,
"t2ORN", 0, "">;
+/// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
+/// unary operation that produces a value. These are predicable and can be
+/// changed to modify CPSR.
+multiclass T2I_un_irs<bits<4> opcod, string opc,
+ InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
+ PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
+ // shifted imm
+ def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
+ opc, "\t$Rd, $imm",
+ [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
+ let isAsCheapAsAMove = Cheap;
+ let isReMaterializable = ReMat;
+ let Inst{31-27} = 0b11110;
+ let Inst{25} = 0;
+ let Inst{24-21} = opcod;
+ let Inst{19-16} = 0b1111; // Rn
+ let Inst{15} = 0;
+ }
+ // register
+ def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
+ opc, ".w\t$Rd, $Rm",
+ [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b01;
+ let Inst{24-21} = opcod;
+ let Inst{19-16} = 0b1111; // Rn
+ let Inst{14-12} = 0b000; // imm3
+ let Inst{7-6} = 0b00; // imm2
+ let Inst{5-4} = 0b00; // type
+ }
+ // shifted register
+ def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
+ opc, ".w\t$Rd, $ShiftedRm",
+ [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b01;
+ let Inst{24-21} = opcod;
+ let Inst{19-16} = 0b1111; // Rn
+ }
+}
+
// Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
let AddedComplexity = 1 in
defm t2MVN : T2I_un_irs <0b0011, "mvn",
IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
UnOpFrag<(not node:$Src)>, 1, 1>;
-
let AddedComplexity = 1 in
def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
(t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
-// Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
+// Halfword multiple accumulate long: SMLAL<x><y>
def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
(ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
[/* For disassembly only; pattern left blank */]>,
Requires<[IsThumb2, HasThumb2DSP]>;
// Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
-// These are for disassembly only.
-
def t2SMUAD: T2ThreeReg_mac<
0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
"\t$Rd, $Rn, $Rm, $Ra", []>,
Requires<[IsThumb2, HasThumb2DSP]>;
def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
- (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
- "\t$Ra, $Rd, $Rm, $Rn", []>,
+ (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald",
+ "\t$Ra, $Rd, $Rn, $Rm", []>,
Requires<[IsThumb2, HasThumb2DSP]>;
def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
- (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
- "\t$Ra, $Rd, $Rm, $Rn", []>,
+ (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx",
+ "\t$Ra, $Rd, $Rn, $Rm", []>,
Requires<[IsThumb2, HasThumb2DSP]>;
def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
- (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
- "\t$Ra, $Rd, $Rm, $Rn", []>,
+ (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlsld",
+ "\t$Ra, $Rd, $Rn, $Rm", []>,
Requires<[IsThumb2, HasThumb2DSP]>;
def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
(ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
- "\t$Ra, $Rd, $Rm, $Rn", []>,
+ "\t$Ra, $Rd, $Rn, $Rm", []>,
Requires<[IsThumb2, HasThumb2DSP]>;
//===----------------------------------------------------------------------===//
(t2REVSH rGPR:$Rm)>;
def t2PKHBT : T2ThreeReg<
- (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
- IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm, lsl $sh",
+ (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_lsl_amt:$sh),
+ IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
[(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
(and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
0xFFFF0000)))]>,
// Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
// will match the pattern below.
def t2PKHTB : T2ThreeReg<
- (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
- IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm, asr $sh",
+ (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, pkh_asr_amt:$sh),
+ IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
[(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
(and (sra rGPR:$Rm, pkh_asr_amt:$sh),
0xFFFF)))]>,
let isMoveImm = 1 in
def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
- IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
+ IIC_iCMOVi, "mvn", "\t$Rd, $imm",
[/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
imm:$cc, CCR:$ccr))*/]>,
RegConstraint<"$false = $Rd"> {
(ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
RegConstraint<"$false = $Rd">;
+
+multiclass T2I_bincc_irs<bits<4> opcod, string opc,
+ InstrItinClass iii, InstrItinClass iir, InstrItinClass iis> {
+ // shifted imm
+ def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
+ iii, opc, ".w\t$Rd, $Rn, $imm", []>,
+ RegConstraint<"$Rn = $Rd"> {
+ let Inst{31-27} = 0b11110;
+ let Inst{25} = 0;
+ let Inst{24-21} = opcod;
+ let Inst{15} = 0;
+ }
+ // register
+ def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
+ iir, opc, ".w\t$Rd, $Rn, $Rm", []>,
+ RegConstraint<"$Rn = $Rd"> {
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b01;
+ let Inst{24-21} = opcod;
+ let Inst{14-12} = 0b000; // imm3
+ let Inst{7-6} = 0b00; // imm2
+ let Inst{5-4} = 0b00; // type
+ }
+ // shifted register
+ def rs : T2sTwoRegShiftedReg<(outs rGPR:$Rd),
+ (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
+ iis, opc, ".w\t$Rd, $Rn, $ShiftedRm", []>,
+ RegConstraint<"$Rn = $Rd"> {
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b01;
+ let Inst{24-21} = opcod;
+ }
+} // T2I_bincc_irs
+
+defm t2ANDCC : T2I_bincc_irs<0b0000, "and", IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
+defm t2ORRCC : T2I_bincc_irs<0b0010, "orr", IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
+defm t2EORCC : T2I_bincc_irs<0b0100, "eor", IIC_iBITi, IIC_iBITr, IIC_iBITsi>;
+
} // isCodeGenOnly = 1
} // neverHasSideEffects
}
let mayLoad = 1 in {
-def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
+def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
"ldrexb", "\t$Rt, $addr", "", []>;
-def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
+def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
"ldrexh", "\t$Rt, $addr", "", []>;
-def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
+def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_imm0_1020s4:$addr),
AddrModeNone, 4, NoItinerary,
"ldrex", "\t$Rt, $addr", "", []> {
+ bits<4> Rt;
+ bits<12> addr;
let Inst{31-27} = 0b11101;
let Inst{26-20} = 0b0000101;
- let Inst{11-8} = 0b1111;
- let Inst{7-0} = 0b00000000; // imm8 = 0
-
- bits<4> Rt;
- bits<4> addr;
- let Inst{19-16} = addr;
+ let Inst{19-16} = addr{11-8};
let Inst{15-12} = Rt;
+ let Inst{11-8} = 0b1111;
+ let Inst{7-0} = addr{7-0};
}
let hasExtraDefRegAllocReq = 1 in
def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
- (ins t2addrmode_reg:$addr),
+ (ins addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
"ldrexd", "\t$Rt, $Rt2, $addr", "",
[], {?, ?, ?, ?}> {
let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
- (ins rGPR:$Rt, t2addrmode_reg:$addr),
+ (ins rGPR:$Rt, addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
"strexb", "\t$Rd, $Rt, $addr", "", []>;
def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
- (ins rGPR:$Rt, t2addrmode_reg:$addr),
+ (ins rGPR:$Rt, addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
"strexh", "\t$Rd, $Rt, $addr", "", []>;
-def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, t2addrmode_reg:$addr),
+def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt,
+ t2addrmode_imm0_1020s4:$addr),
AddrModeNone, 4, NoItinerary,
"strex", "\t$Rd, $Rt, $addr", "",
[]> {
- let Inst{31-27} = 0b11101;
- let Inst{26-20} = 0b0000100;
- let Inst{7-0} = 0b00000000; // imm8 = 0
-
bits<4> Rd;
- bits<4> addr;
bits<4> Rt;
- let Inst{11-8} = Rd;
- let Inst{19-16} = addr;
+ bits<12> addr;
+ let Inst{31-27} = 0b11101;
+ let Inst{26-20} = 0b0000100;
+ let Inst{19-16} = addr{11-8};
let Inst{15-12} = Rt;
+ let Inst{11-8} = Rd;
+ let Inst{7-0} = addr{7-0};
}
-}
-
-let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
+let hasExtraSrcRegAllocReq = 1 in
def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
- (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_reg:$addr),
+ (ins rGPR:$Rt, rGPR:$Rt2, addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
"strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
{?, ?, ?, ?}> {
bits<4> Rt2;
let Inst{11-8} = Rt2;
}
+}
def t2CLREX : T2I<(outs), (ins), NoItinerary, "clrex", "", []>,
Requires<[IsThumb2, HasV7]> {
// $val is a scratch register for our use.
let Defs =
[ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
- QQQQ0, QQQQ1, QQQQ2, QQQQ3 ],
- hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
+ Q0, Q1, Q2, Q3, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15],
+ hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
+ usesCustomInserter = 1 in {
def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
AddrModeNone, 0, NoItinerary, "", "",
[(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
let Defs =
[ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
- hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
+ hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1,
+ usesCustomInserter = 1 in {
def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
AddrModeNone, 0, NoItinerary, "", "",
[(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
let isPredicable = 1 in
-def t2B : T2XI<(outs), (ins uncondbrtarget:$target), IIC_Br,
- "b.w\t$target",
+def t2B : T2I<(outs), (ins uncondbrtarget:$target), IIC_Br,
+ "b", ".w\t$target",
[(br bb:$target)]> {
let Inst{31-27} = 0b11110;
let Inst{15-14} = 0b10;
// FIXME: Add a non-pc based case that can be predicated.
def t2TBB_JT : t2PseudoInst<(outs),
- (ins GPR:$index, i32imm:$jt, i32imm:$id),
- 0, IIC_Br, []>;
+ (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
def t2TBH_JT : t2PseudoInst<(outs),
- (ins GPR:$index, i32imm:$jt, i32imm:$id),
- 0, IIC_Br, []>;
+ (ins GPR:$index, i32imm:$jt, i32imm:$id), 0, IIC_Br, []>;
-def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
- "tbb", "\t[$Rn, $Rm]", []> {
+def t2TBB : T2I<(outs), (ins addrmode_tbb:$addr), IIC_Br,
+ "tbb", "\t$addr", []> {
bits<4> Rn;
bits<4> Rm;
let Inst{31-20} = 0b111010001101;
let Inst{15-5} = 0b11110000000;
let Inst{4} = 0; // B form
let Inst{3-0} = Rm;
+
+ let DecoderMethod = "DecodeThumbTableBranch";
}
-def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
- "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
+def t2TBH : T2I<(outs), (ins addrmode_tbh:$addr), IIC_Br,
+ "tbh", "\t$addr", []> {
bits<4> Rn;
bits<4> Rm;
let Inst{31-20} = 0b111010001101;
let Inst{15-5} = 0b11110000000;
let Inst{4} = 1; // H form
let Inst{3-0} = Rm;
+
+ let DecoderMethod = "DecodeThumbTableBranch";
}
} // isNotDuplicable, isIndirectBranch
} // isBranch, isTerminator, isBarrier
// FIXME: should be able to write a pattern for ARMBrcond, but can't use
-// a two-value operand where a dag node expects two operands. :(
+// a two-value operand where a dag node expects ", "two operands. :(
let isBranch = 1, isTerminator = 1 in
def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
"b", ".w\t$target",
let DecoderMethod = "DecodeThumb2BCCInstruction";
}
-// Tail calls. The Darwin version of thumb tail calls uses a t2 branch, so
+// Tail calls. The IOS version of thumb tail calls uses a t2 branch, so
// it goes here.
let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
- // Darwin version.
- let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
- Uses = [SP] in
- def tTAILJMPd: tPseudoExpand<(outs), (ins uncondbrtarget:$dst, variable_ops),
+ // IOS version.
+ let Uses = [SP] in
+ def tTAILJMPd: tPseudoExpand<(outs),
+ (ins uncondbrtarget:$dst, pred:$p, variable_ops),
4, IIC_Br, [],
- (t2B uncondbrtarget:$dst)>,
- Requires<[IsThumb2, IsDarwin]>;
+ (t2B uncondbrtarget:$dst, pred:$p)>,
+ Requires<[IsThumb2, IsIOS]>;
}
// IT block
}
-// Change Processor State is a system instruction -- for disassembly and
-// parsing only.
+// Change Processor State is a system instruction.
// FIXME: Since the asm parser has currently no clean way to handle optional
// operands, create 3 versions of the same instruction. Once there's a clean
// framework to represent optional operands, change this behavior.
class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
- !strconcat("cps", asm_op),
- [/* For disassembly only; pattern left blank */]> {
+ !strconcat("cps", asm_op), []> {
bits<2> imod;
bits<3> iflags;
bits<5> mode;
def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
"$imod.w\t$iflags">;
let imod = 0, iflags = 0, M = 1 in
- def t2CPS1p : t2CPS<(ins i32imm:$mode), "\t$mode">;
+ def t2CPS1p : t2CPS<(ins imm0_31:$mode), "\t$mode">;
// A6.3.4 Branches and miscellaneous control
// Table A6-14 Change Processor State, and hint instructions
-// Helper class for disassembly only.
class T2I_hint<bits<8> op7_0, string opc, string asm>
- : T2I<(outs), (ins), NoItinerary, opc, asm,
- [/* For disassembly only; pattern left blank */]> {
+ : T2I<(outs), (ins), NoItinerary, opc, asm, []> {
let Inst{31-20} = 0xf3a;
let Inst{19-16} = 0b1111;
let Inst{15-14} = 0b10;
let Inst{3-0} = opt;
}
-// Secure Monitor Call is a system instruction -- for disassembly only
+// Secure Monitor Call is a system instruction.
// Option = Inst{19-16}
-def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
- [/* For disassembly only; pattern left blank */]> {
+def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt", []> {
let Inst{31-27} = 0b11110;
let Inst{26-20} = 0b1111111;
let Inst{15-12} = 0b1000;
let Inst{19-16} = opt;
}
-class T2SRS<bits<12> op31_20,
- dag oops, dag iops, InstrItinClass itin,
- string opc, string asm, list<dag> pattern>
+class T2SRS<bits<2> Op, bit W, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
: T2I<oops, iops, itin, opc, asm, pattern> {
- let Inst{31-20} = op31_20{11-0};
-
bits<5> mode;
+ let Inst{31-25} = 0b1110100;
+ let Inst{24-23} = Op;
+ let Inst{22} = 0;
+ let Inst{21} = W;
+ let Inst{20-16} = 0b01101;
+ let Inst{15-5} = 0b11000000000;
let Inst{4-0} = mode{4-0};
}
-// Store Return State is a system instruction -- for disassembly only
-def t2SRSDBW : T2SRS<0b111010000010,
- (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
- [/* For disassembly only; pattern left blank */]>;
-def t2SRSDB : T2SRS<0b111010000000,
- (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
- [/* For disassembly only; pattern left blank */]>;
-def t2SRSIAW : T2SRS<0b111010011010,
- (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
- [/* For disassembly only; pattern left blank */]>;
-def t2SRSIA : T2SRS<0b111010011000,
- (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
- [/* For disassembly only; pattern left blank */]>;
-
-// Return From Exception is a system instruction -- for disassembly only
+// Store Return State is a system instruction.
+def t2SRSDB_UPD : T2SRS<0b00, 1, (outs), (ins imm0_31:$mode), NoItinerary,
+ "srsdb", "\tsp!, $mode", []>;
+def t2SRSDB : T2SRS<0b00, 0, (outs), (ins imm0_31:$mode), NoItinerary,
+ "srsdb","\tsp, $mode", []>;
+def t2SRSIA_UPD : T2SRS<0b11, 1, (outs), (ins imm0_31:$mode), NoItinerary,
+ "srsia","\tsp!, $mode", []>;
+def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
+ "srsia","\tsp, $mode", []>;
+// Return From Exception is a system instruction.
class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: T2I<oops, iops, itin, opc, asm, pattern> {
[(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
imm:$cp))]>,
Requires<[IsThumb2]>;
+
+// Pseudo isntruction that combines movs + predicated rsbmi
+// to implement integer ABS
+let usesCustomInserter = 1, Defs = [CPSR] in {
+def t2ABS : PseudoInst<(outs rGPR:$dst), (ins rGPR:$src),
+ NoItinerary, []>, Requires<[IsThumb2]>;
+}
+
//===----------------------------------------------------------------------===//
// Coprocessor load/store -- for disassembly only
//
-class T2CI<dag oops, dag iops, string opc, string asm>
+class T2CI<bits<4> op31_28, dag oops, dag iops, string opc, string asm>
: T2I<oops, iops, NoItinerary, opc, asm, []> {
+ let Inst{31-28} = op31_28;
let Inst{27-25} = 0b110;
}
-multiclass T2LdStCop<bits<4> op31_28, bit load, string opc> {
- def _OFFSET : T2CI<(outs),
- (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
- opc, "\tp$cop, cr$CRd, $addr"> {
- let Inst{31-28} = op31_28;
- let Inst{24} = 1; // P = 1
- let Inst{21} = 0; // W = 0
- let Inst{22} = 0; // D = 0
- let Inst{20} = load;
- let DecoderMethod = "DecodeCopMemInstruction";
- }
-
- def _PRE : T2CI<(outs),
- (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
- opc, "\tp$cop, cr$CRd, $addr!"> {
- let Inst{31-28} = op31_28;
- let Inst{24} = 1; // P = 1
- let Inst{21} = 1; // W = 1
- let Inst{22} = 0; // D = 0
- let Inst{20} = load;
- let DecoderMethod = "DecodeCopMemInstruction";
- }
-
- def _POST : T2CI<(outs),
- (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
- opc, "\tp$cop, cr$CRd, $addr"> {
- let Inst{31-28} = op31_28;
- let Inst{24} = 0; // P = 0
- let Inst{21} = 1; // W = 1
- let Inst{22} = 0; // D = 0
- let Inst{20} = load;
- let DecoderMethod = "DecodeCopMemInstruction";
- }
-
- def _OPTION : T2CI<(outs),
- (ins nohash_imm:$cop,nohash_imm:$CRd,GPR:$base, nohash_imm:$option),
- opc, "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
- let Inst{31-28} = op31_28;
- let Inst{24} = 0; // P = 0
- let Inst{23} = 1; // U = 1
- let Inst{21} = 0; // W = 0
- let Inst{22} = 0; // D = 0
- let Inst{20} = load;
- let DecoderMethod = "DecodeCopMemInstruction";
- }
-
- def L_OFFSET : T2CI<(outs),
- (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
- !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr"> {
- let Inst{31-28} = op31_28;
+multiclass t2LdStCop<bits<4> op31_28, bit load, bit Dbit, string asm> {
+ def _OFFSET : T2CI<op31_28,
+ (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
+ asm, "\t$cop, $CRd, $addr"> {
+ bits<13> addr;
+ bits<4> cop;
+ bits<4> CRd;
let Inst{24} = 1; // P = 1
+ let Inst{23} = addr{8};
+ let Inst{22} = Dbit;
let Inst{21} = 0; // W = 0
- let Inst{22} = 1; // D = 1
let Inst{20} = load;
+ let Inst{19-16} = addr{12-9};
+ let Inst{15-12} = CRd;
+ let Inst{11-8} = cop;
+ let Inst{7-0} = addr{7-0};
let DecoderMethod = "DecodeCopMemInstruction";
}
-
- def L_PRE : T2CI<(outs),
- (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
- !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr!"> {
- let Inst{31-28} = op31_28;
+ def _PRE : T2CI<op31_28,
+ (outs), (ins p_imm:$cop, c_imm:$CRd, addrmode5:$addr),
+ asm, "\t$cop, $CRd, $addr!"> {
+ bits<13> addr;
+ bits<4> cop;
+ bits<4> CRd;
let Inst{24} = 1; // P = 1
+ let Inst{23} = addr{8};
+ let Inst{22} = Dbit;
let Inst{21} = 1; // W = 1
- let Inst{22} = 1; // D = 1
let Inst{20} = load;
+ let Inst{19-16} = addr{12-9};
+ let Inst{15-12} = CRd;
+ let Inst{11-8} = cop;
+ let Inst{7-0} = addr{7-0};
let DecoderMethod = "DecodeCopMemInstruction";
}
-
- def L_POST : T2CI<(outs),
- (ins nohash_imm:$cop, nohash_imm:$CRd, addr_offset_none:$addr,
- postidx_imm8s4:$offset),
- !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr, $offset"> {
- let Inst{31-28} = op31_28;
+ def _POST: T2CI<op31_28,
+ (outs), (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
+ postidx_imm8s4:$offset),
+ asm, "\t$cop, $CRd, $addr, $offset"> {
+ bits<9> offset;
+ bits<4> addr;
+ bits<4> cop;
+ bits<4> CRd;
let Inst{24} = 0; // P = 0
+ let Inst{23} = offset{8};
+ let Inst{22} = Dbit;
let Inst{21} = 1; // W = 1
- let Inst{22} = 1; // D = 1
let Inst{20} = load;
+ let Inst{19-16} = addr;
+ let Inst{15-12} = CRd;
+ let Inst{11-8} = cop;
+ let Inst{7-0} = offset{7-0};
let DecoderMethod = "DecodeCopMemInstruction";
}
-
- def L_OPTION : T2CI<(outs),
- (ins nohash_imm:$cop, nohash_imm:$CRd,GPR:$base,nohash_imm:$option),
- !strconcat(opc, "l"), "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
- let Inst{31-28} = op31_28;
+ def _OPTION : T2CI<op31_28, (outs),
+ (ins p_imm:$cop, c_imm:$CRd, addr_offset_none:$addr,
+ coproc_option_imm:$option),
+ asm, "\t$cop, $CRd, $addr, $option"> {
+ bits<8> option;
+ bits<4> addr;
+ bits<4> cop;
+ bits<4> CRd;
let Inst{24} = 0; // P = 0
let Inst{23} = 1; // U = 1
+ let Inst{22} = Dbit;
let Inst{21} = 0; // W = 0
- let Inst{22} = 1; // D = 1
let Inst{20} = load;
+ let Inst{19-16} = addr;
+ let Inst{15-12} = CRd;
+ let Inst{11-8} = cop;
+ let Inst{7-0} = option;
let DecoderMethod = "DecodeCopMemInstruction";
}
}
-defm t2LDC : T2LdStCop<0b1111, 1, "ldc">;
-defm t2STC : T2LdStCop<0b1111, 0, "stc">;
+defm t2LDC : t2LdStCop<0b1110, 1, 0, "ldc">;
+defm t2LDCL : t2LdStCop<0b1110, 1, 1, "ldcl">;
+defm t2STC : t2LdStCop<0b1110, 0, 0, "stc">;
+defm t2STCL : t2LdStCop<0b1110, 0, 1, "stcl">;
+defm t2LDC2 : t2LdStCop<0b1111, 1, 0, "ldc2">;
+defm t2LDC2L : t2LdStCop<0b1111, 1, 1, "ldc2l">;
+defm t2STC2 : t2LdStCop<0b1111, 0, 0, "stc2">;
+defm t2STC2L : t2LdStCop<0b1111, 0, 1, "stc2l">;
//===----------------------------------------------------------------------===//
// Move between special register and ARM core register -- for disassembly only
//
+// Move to ARM core register from Special Register
-class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
- dag oops, dag iops, InstrItinClass itin,
- string opc, string asm, list<dag> pattern>
- : T2I<oops, iops, itin, opc, asm, pattern> {
- let Inst{31-20} = op31_20{11-0};
- let Inst{15-14} = op15_14{1-0};
- let Inst{13} = 0b0;
- let Inst{12} = op12{0};
- let Inst{7-0} = 0;
+// A/R class MRS.
+//
+// A/R class can only move from CPSR or SPSR.
+def t2MRS_AR : T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, apsr", []>,
+ Requires<[IsThumb2,IsARClass]> {
+ bits<4> Rd;
+ let Inst{31-12} = 0b11110011111011111000;
+ let Inst{11-8} = Rd;
+ let Inst{7-0} = 0b0000;
}
-class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
- dag oops, dag iops, InstrItinClass itin,
- string opc, string asm, list<dag> pattern>
- : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
+def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
+
+def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr", []>,
+ Requires<[IsThumb2,IsARClass]> {
+ bits<4> Rd;
+ let Inst{31-12} = 0b11110011111111111000;
+ let Inst{11-8} = Rd;
+ let Inst{7-0} = 0b0000;
+}
+
+// M class MRS.
+//
+// This MRS has a mask field in bits 7-0 and can take more values than
+// the A/R class (a full msr_mask).
+def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary,
+ "mrs", "\t$Rd, $mask", []>,
+ Requires<[IsThumb2,IsMClass]> {
bits<4> Rd;
+ bits<8> mask;
+ let Inst{31-12} = 0b11110011111011111000;
let Inst{11-8} = Rd;
let Inst{19-16} = 0b1111;
+ let Inst{7-0} = mask;
}
-def t2MRS : T2MRS<0b111100111110, 0b10, 0,
- (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
- [/* For disassembly only; pattern left blank */]>;
-def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
- (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
- [/* For disassembly only; pattern left blank */]>;
// Move from ARM core register to Special Register
//
+// A/R class MSR.
+//
// No need to have both system and application versions, the encodings are the
// same and the assembly parser has no way to distinguish between them. The mask
// operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
// the mask with the fields to be accessed in the special register.
-def t2MSR : T2SpecialReg<0b111100111000 /* op31-20 */, 0b10 /* op15-14 */,
- 0 /* op12 */, (outs), (ins msr_mask:$mask, rGPR:$Rn),
- NoItinerary, "msr", "\t$mask, $Rn",
- [/* For disassembly only; pattern left blank */]> {
+def t2MSR_AR : T2I<(outs), (ins msr_mask:$mask, rGPR:$Rn),
+ NoItinerary, "msr", "\t$mask, $Rn", []>,
+ Requires<[IsThumb2,IsARClass]> {
bits<5> mask;
bits<4> Rn;
- let Inst{19-16} = Rn;
+ let Inst{31-21} = 0b11110011100;
let Inst{20} = mask{4}; // R Bit
+ let Inst{19-16} = Rn;
+ let Inst{15-12} = 0b1000;
let Inst{11-8} = mask{3-0};
+ let Inst{7-0} = 0;
+}
+
+// M class MSR.
+//
+// Move from ARM core register to Special Register
+def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
+ NoItinerary, "msr", "\t$SYSm, $Rn", []>,
+ Requires<[IsThumb2,IsMClass]> {
+ bits<8> SYSm;
+ bits<4> Rn;
+ let Inst{31-21} = 0b11110011100;
+ let Inst{20} = 0b0;
+ let Inst{19-16} = Rn;
+ let Inst{15-12} = 0b1000;
+ let Inst{7-0} = SYSm;
}
+
//===----------------------------------------------------------------------===//
// Move between coprocessor and ARM core register
//
// Aliases for ADD without the ".w" optional width specifier.
def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
- (t2ADDri rGPR:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
+ (t2ADDri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
def : t2InstAlias<"add${p} $Rd, $Rn, $imm",
- (t2ADDri12 rGPR:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
+ (t2ADDri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
def : t2InstAlias<"add${s}${p} $Rd, $Rn, $Rm",
- (t2ADDrr rGPR:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
+ (t2ADDrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
- (t2ADDrs rGPR:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
+ (t2ADDrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
pred:$p, cc_out:$s)>;
+// ... and with the destination and source register combined.
+def : t2InstAlias<"add${s}${p} $Rdn, $imm",
+ (t2ADDri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"add${p} $Rdn, $imm",
+ (t2ADDri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
+def : t2InstAlias<"add${s}${p} $Rdn, $Rm",
+ (t2ADDrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"add${s}${p} $Rdn, $ShiftedRm",
+ (t2ADDrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
+ pred:$p, cc_out:$s)>;
+
+// Aliases for SUB without the ".w" optional width specifier.
+def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
+ (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"sub${p} $Rd, $Rn, $imm",
+ (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095:$imm, pred:$p)>;
+def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $Rm",
+ (t2SUBrr GPRnopc:$Rd, GPRnopc:$Rn, rGPR:$Rm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $ShiftedRm",
+ (t2SUBrs GPRnopc:$Rd, GPRnopc:$Rn, t2_so_reg:$ShiftedRm,
+ pred:$p, cc_out:$s)>;
+// ... and with the destination and source register combined.
+def : t2InstAlias<"sub${s}${p} $Rdn, $imm",
+ (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"sub${p} $Rdn, $imm",
+ (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095:$imm, pred:$p)>;
+def : t2InstAlias<"sub${s}${p} $Rdn, $Rm",
+ (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"sub${s}${p} $Rdn, $ShiftedRm",
+ (t2SUBrs GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_reg:$ShiftedRm,
+ pred:$p, cc_out:$s)>;
+
// Alias for compares without the ".w" optional width specifier.
def : t2InstAlias<"cmn${p} $Rn, $Rm",
def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;
-// Alias for LDR, LDRB, LDRH without the ".w" optional width specifier.
+// Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
+// width specifier.
def : t2InstAlias<"ldr${p} $Rt, $addr",
(t2LDRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
def : t2InstAlias<"ldrb${p} $Rt, $addr",
(t2LDRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
def : t2InstAlias<"ldrh${p} $Rt, $addr",
(t2LDRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
+def : t2InstAlias<"ldrsb${p} $Rt, $addr",
+ (t2LDRSBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
+def : t2InstAlias<"ldrsh${p} $Rt, $addr",
+ (t2LDRSHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
+
+def : t2InstAlias<"ldr${p} $Rt, $addr",
+ (t2LDRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
+def : t2InstAlias<"ldrb${p} $Rt, $addr",
+ (t2LDRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
+def : t2InstAlias<"ldrh${p} $Rt, $addr",
+ (t2LDRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
+def : t2InstAlias<"ldrsb${p} $Rt, $addr",
+ (t2LDRSBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
+def : t2InstAlias<"ldrsh${p} $Rt, $addr",
+ (t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
+
+def : t2InstAlias<"ldr${p} $Rt, $addr",
+ (t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
+def : t2InstAlias<"ldrb${p} $Rt, $addr",
+ (t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
+def : t2InstAlias<"ldrh${p} $Rt, $addr",
+ (t2LDRHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
+def : t2InstAlias<"ldrsb${p} $Rt, $addr",
+ (t2LDRSBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
+def : t2InstAlias<"ldrsh${p} $Rt, $addr",
+ (t2LDRSHpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
+
+// Alias for MVN with(out) the ".w" optional width specifier.
+def : t2InstAlias<"mvn${s}${p}.w $Rd, $imm",
+ (t2MVNi rGPR:$Rd, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"mvn${s}${p} $Rd, $Rm",
+ (t2MVNr rGPR:$Rd, rGPR:$Rm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"mvn${s}${p} $Rd, $ShiftedRm",
+ (t2MVNs rGPR:$Rd, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>;
+
+// PKHBT/PKHTB with default shift amount. PKHTB is equivalent to PKHBT when the
+// shift amount is zero (i.e., unspecified).
+def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm",
+ (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm",
+ (t2PKHBT rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>,
+ Requires<[HasT2ExtractPack, IsThumb2]>;
+
+// PUSH/POP aliases for STM/LDM
+def : t2InstAlias<"push${p}.w $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
+def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
+def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
+def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
+
+// STMIA/STMIA_UPD aliases w/o the optional .w suffix
+def : t2InstAlias<"stm${p} $Rn, $regs",
+ (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
+def : t2InstAlias<"stm${p} $Rn!, $regs",
+ (t2STMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
+
+// LDMIA/LDMIA_UPD aliases w/o the optional .w suffix
+def : t2InstAlias<"ldm${p} $Rn, $regs",
+ (t2LDMIA GPR:$Rn, pred:$p, reglist:$regs)>;
+def : t2InstAlias<"ldm${p} $Rn!, $regs",
+ (t2LDMIA_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
+
+// STMDB/STMDB_UPD aliases w/ the optional .w suffix
+def : t2InstAlias<"stmdb${p}.w $Rn, $regs",
+ (t2STMDB GPR:$Rn, pred:$p, reglist:$regs)>;
+def : t2InstAlias<"stmdb${p}.w $Rn!, $regs",
+ (t2STMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
+
+// LDMDB/LDMDB_UPD aliases w/ the optional .w suffix
+def : t2InstAlias<"ldmdb${p}.w $Rn, $regs",
+ (t2LDMDB GPR:$Rn, pred:$p, reglist:$regs)>;
+def : t2InstAlias<"ldmdb${p}.w $Rn!, $regs",
+ (t2LDMDB_UPD GPR:$Rn, pred:$p, reglist:$regs)>;
+
+// Alias for REV/REV16/REVSH without the ".w" optional width specifier.
+def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
+def : t2InstAlias<"rev16${p} $Rd, $Rm", (t2REV16 rGPR:$Rd, rGPR:$Rm, pred:$p)>;
+def : t2InstAlias<"revsh${p} $Rd, $Rm", (t2REVSH rGPR:$Rd, rGPR:$Rm, pred:$p)>;
+
+
+// Alias for RSB without the ".w" optional width specifier, and with optional
+// implied destination register.
+def : t2InstAlias<"rsb${s}${p} $Rd, $Rn, $imm",
+ (t2RSBri rGPR:$Rd, rGPR:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"rsb${s}${p} $Rdn, $imm",
+ (t2RSBri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm",
+ (t2RSBrr rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
+def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm",
+ (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p,
+ cc_out:$s)>;
+
+// SSAT/USAT optional shift operand.
+def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn",
+ (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
+def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn",
+ (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>;
+
+// STM w/o the .w suffix.
+def : t2InstAlias<"stm${p} $Rn, $regs",
+ (t2STMIA GPR:$Rn, pred:$p, reglist:$regs)>;
+
+// Alias for STR, STRB, and STRH without the ".w" optional
+// width specifier.
+def : t2InstAlias<"str${p} $Rt, $addr",
+ (t2STRi12 GPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
+def : t2InstAlias<"strb${p} $Rt, $addr",
+ (t2STRBi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
+def : t2InstAlias<"strh${p} $Rt, $addr",
+ (t2STRHi12 rGPR:$Rt, t2addrmode_imm12:$addr, pred:$p)>;
+
+def : t2InstAlias<"str${p} $Rt, $addr",
+ (t2STRs GPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
+def : t2InstAlias<"strb${p} $Rt, $addr",
+ (t2STRBs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
+def : t2InstAlias<"strh${p} $Rt, $addr",
+ (t2STRHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
+
+// Extend instruction optional rotate operand.
+def : t2InstAlias<"sxtab${p} $Rd, $Rn, $Rm",
+ (t2SXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"sxtah${p} $Rd, $Rn, $Rm",
+ (t2SXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"sxtab16${p} $Rd, $Rn, $Rm",
+ (t2SXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
+
+def : t2InstAlias<"sxtb${p} $Rd, $Rm",
+ (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"sxtb16${p} $Rd, $Rm",
+ (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"sxth${p} $Rd, $Rm",
+ (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"sxtb${p}.w $Rd, $Rm",
+ (t2SXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"sxth${p}.w $Rd, $Rm",
+ (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+
+def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm",
+ (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"uxtah${p} $Rd, $Rn, $Rm",
+ (t2UXTAH rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"uxtab16${p} $Rd, $Rn, $Rm",
+ (t2UXTAB16 rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"uxtb${p} $Rd, $Rm",
+ (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"uxtb16${p} $Rd, $Rm",
+ (t2UXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"uxth${p} $Rd, $Rm",
+ (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+
+def : t2InstAlias<"uxtb${p}.w $Rd, $Rm",
+ (t2UXTB rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+def : t2InstAlias<"uxth${p}.w $Rd, $Rm",
+ (t2UXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>;
+
+// Extend instruction w/o the ".w" optional width specifier.
+def : t2InstAlias<"uxtb${p} $Rd, $Rm$rot",
+ (t2UXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
+def : t2InstAlias<"uxtb16${p} $Rd, $Rm$rot",
+ (t2UXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
+def : t2InstAlias<"uxth${p} $Rd, $Rm$rot",
+ (t2UXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
+
+def : t2InstAlias<"sxtb${p} $Rd, $Rm$rot",
+ (t2SXTB rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
+def : t2InstAlias<"sxtb16${p} $Rd, $Rm$rot",
+ (t2SXTB16 rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
+def : t2InstAlias<"sxth${p} $Rd, $Rm$rot",
+ (t2SXTH rGPR:$Rd, rGPR:$Rm, rot_imm:$rot, pred:$p)>;
+
+
+// "mov Rd, t2_so_imm_not" can be handled via "mvn" in assembly, just like
+// for isel.
+def : t2InstAlias<"mov${p} $Rd, $imm",
+ (t2MVNi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
+def : t2InstAlias<"mvn${p} $Rd, $imm",
+ (t2MOVi rGPR:$Rd, t2_so_imm_not:$imm, pred:$p, zero_reg)>;
+// Same for AND <--> BIC
+def : t2InstAlias<"bic${s}${p} $Rd, $Rn, $imm",
+ (t2ANDri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
+ pred:$p, cc_out:$s)>;
+def : t2InstAlias<"bic${s}${p} $Rdn, $imm",
+ (t2ANDri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
+ pred:$p, cc_out:$s)>;
+def : t2InstAlias<"and${s}${p} $Rd, $Rn, $imm",
+ (t2BICri rGPR:$Rd, rGPR:$Rn, so_imm_not:$imm,
+ pred:$p, cc_out:$s)>;
+def : t2InstAlias<"and${s}${p} $Rdn, $imm",
+ (t2BICri rGPR:$Rdn, rGPR:$Rdn, so_imm_not:$imm,
+ pred:$p, cc_out:$s)>;
+// Likewise, "add Rd, t2_so_imm_neg" -> sub
+def : t2InstAlias<"add${s}${p} $Rd, $Rn, $imm",
+ (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,
+ pred:$p, cc_out:$s)>;
+def : t2InstAlias<"add${s}${p} $Rd, $imm",
+ (t2SUBri GPRnopc:$Rd, GPRnopc:$Rd, t2_so_imm_neg:$imm,
+ pred:$p, cc_out:$s)>;
+// Same for CMP <--> CMN via t2_so_imm_neg
+def : t2InstAlias<"cmp${p} $Rd, $imm",
+ (t2CMNzri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
+def : t2InstAlias<"cmn${p} $Rd, $imm",
+ (t2CMPri rGPR:$Rd, t2_so_imm_neg:$imm, pred:$p)>;
+
+
+// Wide 'mul' encoding can be specified with only two operands.
+def : t2InstAlias<"mul${p} $Rn, $Rm",
+ (t2MUL rGPR:$Rn, rGPR:$Rm, rGPR:$Rn, pred:$p)>;
+
+// "neg" is and alias for "rsb rd, rn, #0"
+def : t2InstAlias<"neg${s}${p} $Rd, $Rm",
+ (t2RSBri rGPR:$Rd, rGPR:$Rm, 0, pred:$p, cc_out:$s)>;
+
+// MOV so_reg assembler pseudos. InstAlias isn't expressive enough for
+// these, unfortunately.
+def t2MOVsi: t2AsmPseudo<"mov${p} $Rd, $shift",
+ (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
+def t2MOVSsi: t2AsmPseudo<"movs${p} $Rd, $shift",
+ (ins rGPR:$Rd, t2_so_reg:$shift, pred:$p)>;
+
+def t2MOVsr: t2AsmPseudo<"mov${p} $Rd, $shift",
+ (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
+def t2MOVSsr: t2AsmPseudo<"movs${p} $Rd, $shift",
+ (ins rGPR:$Rd, so_reg_reg:$shift, pred:$p)>;
+
+// ADR w/o the .w suffix
+def : t2InstAlias<"adr${p} $Rd, $addr",
+ (t2ADR rGPR:$Rd, t2adrlabel:$addr, pred:$p)>;
+
+// LDR(literal) w/ alternate [pc, #imm] syntax.
+def t2LDRpcrel : t2AsmPseudo<"ldr${p} $Rt, $addr",
+ (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+def t2LDRBpcrel : t2AsmPseudo<"ldrb${p} $Rt, $addr",
+ (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+def t2LDRHpcrel : t2AsmPseudo<"ldrh${p} $Rt, $addr",
+ (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+def t2LDRSBpcrel : t2AsmPseudo<"ldrsb${p} $Rt, $addr",
+ (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+def t2LDRSHpcrel : t2AsmPseudo<"ldrsh${p} $Rt, $addr",
+ (ins GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+ // Version w/ the .w suffix.
+def : t2InstAlias<"ldr${p}.w $Rt, $addr",
+ (t2LDRpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+def : t2InstAlias<"ldrb${p}.w $Rt, $addr",
+ (t2LDRBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+def : t2InstAlias<"ldrh${p}.w $Rt, $addr",
+ (t2LDRHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
+ (t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
+ (t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+
+def : t2InstAlias<"add${p} $Rd, pc, $imm",
+ (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;
projects / oota-llvm.git / blobdiff