-//===- ARMInstrThumb2.td - Thumb2 support for ARM -------------------------===//
+//===-- ARMInstrThumb2.td - Thumb2 support for ARM ---------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
}]>;
+// so_imm_notSext_XFORM - Return a so_imm value packed into the format
+// described for so_imm_notSext def below, with sign extension from 16
+// bits.
+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);
+}]>;
+
// 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_notSext - match an immediate that is a complement of a t2_so_imm
+// if the upper 16 bits are zero.
+def t2_so_imm_notSext : Operand<i32>, PatLeaf<(imm), [{
+ APInt apIntN = N->getAPIntValue();
+ if (!apIntN.isIntN(16)) return false;
+ unsigned N16bitSignExt = apIntN.trunc(16).sext(32).getZExtValue();
+ return ARM_AM::getT2SOImmVal(~N16bitSignExt) != -1;
+ }], t2_so_imm_notSext16_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), [{
- return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
-}], t2_so_imm_neg_XFORM>;
+def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; }
+def t2_so_imm_neg : Operand<i32>, PatLeaf<(imm), [{
+ int64_t Value = -(int)N->getZExtValue();
+ return Value && ARM_AM::getT2SOImmVal(Value) != -1;
+}], 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>,
- ImmLeaf<i32, [{
+def imm0_4095_asmoperand: ImmAsmOperand { let Name = "Imm0_4095"; }
+def imm0_4095 : Operand<i32>, ImmLeaf<i32, [{
return Imm >= 0 && Imm < 4096;
-}]>;
+}]> {
+ let ParserMatchClass = imm0_4095_asmoperand;
+}
-def imm0_4095_neg : PatLeaf<(i32 imm), [{
+def imm0_4095_neg_asmoperand: AsmOperandClass { let Name = "Imm0_4095Neg"; }
+def imm0_4095_neg : Operand<i32>, PatLeaf<(i32 imm), [{
return (uint32_t)(-N->getZExtValue()) < 4096;
-}], imm_neg_XFORM>;
+}], imm_neg_XFORM> {
+ let ParserMatchClass = imm0_4095_neg_asmoperand;
+}
-def imm0_255_neg : PatLeaf<(i32 imm), [{
- return (uint32_t)(-N->getZExtValue()) < 255;
+def imm1_255_neg : PatLeaf<(i32 imm), [{
+ uint32_t Val = -N->getZExtValue();
+ return (Val > 0 && Val < 255);
}], imm_neg_XFORM>;
def imm0_255_not : PatLeaf<(i32 imm), [{
def t2addrmode_imm12_asmoperand : AsmOperandClass {let Name="MemUImm12Offset";}
def t2addrmode_imm12 : Operand<i32>,
ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
- let PrintMethod = "printAddrModeImm12Operand";
+ let PrintMethod = "printAddrModeImm12Operand<false>";
let EncoderMethod = "getAddrModeImm12OpValue";
let DecoderMethod = "DecodeT2AddrModeImm12";
let ParserMatchClass = t2addrmode_imm12_asmoperand;
// t2ldrlabel := imm12
def t2ldrlabel : Operand<i32> {
let EncoderMethod = "getAddrModeImm12OpValue";
- let PrintMethod = "printT2LdrLabelOperand";
+ let PrintMethod = "printThumbLdrLabelOperand";
}
+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> {
let EncoderMethod = "getT2AdrLabelOpValue";
+ let PrintMethod = "printAdrLabelOperand";
}
let Inst{7-4} = opc7_4;
let Inst{3-0} = Rm;
}
+class T2MlaLong<bits<3> opc22_20, bits<4> opc7_4,
+ dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T2I<oops, iops, itin, opc, asm, pattern> {
+ bits<4> RdLo;
+ bits<4> RdHi;
+ bits<4> Rn;
+ bits<4> Rm;
+
+ let Inst{31-23} = 0b111110111;
+ let Inst{22-20} = opc22_20;
+ let Inst{19-16} = Rn;
+ let Inst{15-12} = RdLo;
+ let Inst{11-8} = RdHi;
+ let Inst{7-4} = opc7_4;
+ let Inst{3-0} = Rm;
+}
/// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
/// changed to modify CPSR.
multiclass T2I_bin_irs<bits<4> opcod, string opc,
InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
- PatFrag opnode, string baseOpc, bit Commutable = 0,
+ PatFrag opnode, bit Commutable = 0,
string wide = ""> {
// shifted imm
def ri : T2sTwoRegImm<
// Assembly aliases for optional destination operand when it's the same
// as the source operand.
def : t2InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
- (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
+ (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn,
t2_so_imm:$imm, pred:$p,
cc_out:$s)>;
def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
- (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
+ (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn,
rGPR:$Rm, pred:$p,
cc_out:$s)>;
def : t2InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
- (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
+ (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn,
t2_so_reg:$shift, pred:$p,
cc_out:$s)>;
}
// the ".w" suffix to indicate that they are wide.
multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
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"> {
+ PatFrag opnode, bit Commutable = 0> :
+ T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, Commutable, ".w"> {
+ // Assembler aliases w/ the ".w" suffix.
+ def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rd, $Rn, $imm"),
+ (!cast<Instruction>(NAME#"ri") rGPR:$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:$Rn,
- rGPR:$Rm, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
+ cc_out:$s)>;
def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $shift"),
- (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rd, rGPR:$Rn,
- t2_so_reg:$shift, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"rs") rGPR:$Rd, rGPR:$Rn, t2_so_reg:$shift,
+ pred:$p, cc_out:$s)>;
// and with the optional destination operand, too.
+ def : t2InstAlias<!strconcat(opc, "${s}${p}.w", " $Rdn, $imm"),
+ (!cast<Instruction>(NAME#"ri") rGPR:$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:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
+ cc_out:$s)>;
def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $shift"),
- (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
- t2_so_reg:$shift, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"rs") rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$shift,
+ pred:$p, cc_out:$s)>;
}
/// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
///
/// These opcodes will be converted to the real non-S opcodes by
/// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
-let hasPostISelHook = 1, isCodeGenOnly = 1, isPseudo = 1, Defs = [CPSR] in {
-multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
- InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
- PatFrag opnode, bit Commutable = 0> {
+let hasPostISelHook = 1, Defs = [CPSR] in {
+multiclass T2I_bin_s_irs<InstrItinClass iii, InstrItinClass iir,
+ InstrItinClass iis, PatFrag opnode,
+ bit Commutable = 0> {
// shifted imm
- def ri : T2sTwoRegImm<
- (outs rGPR:$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))]>;
+ 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:$Rm))]> {
+ let isCommutable = Commutable;
+ }
// shifted register
- def rs : T2sTwoRegShiftedReg<
- (outs rGPR:$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))]>;
+ 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 rGPR:$Rn, t2_so_imm:$imm, pred:$p),
+ 4, IIC_iALUi,
+ [(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
+ rGPR:$Rn))]>;
+ // shifted register
+ def rs : t2PseudoInst<(outs rGPR:$Rd),
+ (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
+ 4, IIC_iALUsi,
+ [(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
+ rGPR:$Rn))]>;
}
}
}
}
-/// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
-/// version is not needed since this is only for codegen.
-///
-/// These opcodes will be converted to the real non-S opcodes by
-/// AdjustInstrPostInstrSelection after giving then an optional CPSR operand.
-let hasPostISelHook = 1, isCodeGenOnly = 1, isPseudo = 1, Defs = [CPSR] in {
-multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
- // shifted imm
- def ri : T2sTwoRegImm<
- (outs rGPR:$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))]>;
- // 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))]>;
-}
-}
-
/// 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,
- string baseOpc> {
+multiclass T2I_sh_ir<bits<2> opcod, string opc, Operand ty, PatFrag opnode> {
// 5-bit imm
def ri : T2sTwoRegShiftImm<
(outs rGPR:$Rd), (ins rGPR:$Rm, ty:$imm), IIC_iMOVsi,
// Optional destination register
def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $imm"),
- (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
- ty:$imm, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
+ cc_out:$s)>;
def : t2InstAlias<!strconcat(opc, "${s}${p}", ".w $Rdn, $Rm"),
- (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
- rGPR:$Rm, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
+ cc_out:$s)>;
// Assembler aliases w/o the ".w" suffix.
def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $imm"),
- (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
- ty:$imm, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"ri") rGPR:$Rd, rGPR:$Rn, ty:$imm, pred:$p,
+ cc_out:$s)>;
def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rd, $Rn, $Rm"),
- (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rd, rGPR:$Rn,
- rGPR:$Rm, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"rr") rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, pred:$p,
+ cc_out:$s)>;
// and with the optional destination operand, too.
def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $imm"),
- (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
- ty:$imm, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"ri") rGPR:$Rdn, rGPR:$Rdn, ty:$imm, pred:$p,
+ cc_out:$s)>;
def : t2InstAlias<!strconcat(opc, "${s}${p}", " $Rdn, $Rm"),
- (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
- rGPR:$Rm, pred:$p,
- cc_out:$s)>;
+ (!cast<Instruction>(NAME#"rr") rGPR:$Rdn, rGPR:$Rdn, rGPR:$Rm, pred:$p,
+ cc_out:$s)>;
}
/// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
/// a explicit result, only implicitly set CPSR.
multiclass T2I_cmp_irs<bits<4> opcod, string opc,
InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
- PatFrag opnode, string baseOpc> {
+ PatFrag opnode> {
let isCompare = 1, Defs = [CPSR] in {
// shifted imm
def ri : T2OneRegCmpImm<
// No alias here for 'rr' version as not all instantiations of this
// multiclass want one (CMP in particular, does not).
def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $imm"),
- (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPRnopc:$Rn,
- t2_so_imm:$imm, pred:$p)>;
+ (!cast<Instruction>(NAME#"ri") GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
def : t2InstAlias<!strconcat(opc, "${p}", " $Rn, $shift"),
- (!cast<Instruction>(!strconcat(baseOpc, "rs")) GPRnopc:$Rn,
- t2_so_reg:$shift,
- pred:$p)>;
+ (!cast<Instruction>(NAME#"rs") GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
}
/// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
let DecoderMethod = "DecodeT2LoadShift";
}
- // FIXME: Is the pci variant actually needed?
+ // pci variant is very similar to i12, but supports negative offsets
+ // from the PC.
def pci : T2Ipc <(outs target:$Rt), (ins t2ldrlabel:$addr), iii,
opc, ".w\t$Rt, $addr",
[(set target:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
let neverHasSideEffects = 1, isReMaterializable = 1 in
def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
4, IIC_iALUi, []>;
+let hasSideEffects = 1 in
def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
(ins i32imm:$label, nohash_imm:$id, pred:$p),
4, IIC_iALUi,
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, $addr", "", []>;
// Indexed stores
+
+let mayStore = 1, neverHasSideEffects = 1 in {
def t2STR_PRE : T2Ipreldst<0, 0b10, 0, 1, (outs GPRnopc:$Rn_wb),
- (ins rGPR:$Rt, t2addrmode_imm8:$addr),
+ (ins GPRnopc:$Rt, t2addrmode_imm8:$addr),
AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
"str", "\t$Rt, $addr!",
"$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
"$addr.base = $Rn_wb,@earlyclobber $Rn_wb", []> {
let AsmMatchConverter = "cvtStWriteBackRegT2AddrModeImm8";
}
+} // mayStore = 1, neverHasSideEffects = 1
def t2STR_POST : T2Ipostldst<0, 0b10, 0, 0, (outs GPRnopc:$Rn_wb),
- (ins rGPR:$Rt, addr_offset_none:$Rn,
+ (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 rGPR:$Rt, addr_offset_none:$Rn,
+ (post_store GPRnopc:$Rt, addr_offset_none:$Rn,
t2am_imm8_offset:$offset))]>;
def t2STRH_POST : T2Ipostldst<0, 0b01, 0, 0, (outs GPRnopc:$Rn_wb),
(pre_truncsti16 rGPR:$Rt, GPRnopc:$Rn, t2am_imm8_offset:$offset))]>;
}
-
// STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
// only.
// Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
"$addr.base = $wb", []>;
// T2Ipl (Preload Data/Instruction) signals the memory system of possible future
-// data/instruction access. These are for disassembly only.
+// data/instruction access.
// instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
// (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
let DecoderMethod = "DecodeT2LoadShift";
}
+ // FIXME: We should have a separate 'pci' variant here. As-is we represent
+ // it via the i12 variant, which it's related to, but that means we can
+ // represent negative immediates, which aren't legal for anything except
+ // the 'pci' case (Rn == 15).
}
defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
let Inst{21} = 0; // No writeback
let Inst{20} = L_bit;
let Inst{19-16} = Rn;
- let Inst{15} = 0;
- let Inst{14-0} = regs{14-0};
+ let Inst{15-0} = regs;
}
def IA_UPD :
T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
let Inst{21} = 1; // Writeback
let Inst{20} = L_bit;
let Inst{19-16} = Rn;
- let Inst{15} = 0;
- let Inst{14-0} = regs{14-0};
+ let Inst{15-0} = regs;
}
def DB :
T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
let Inst{21} = 0; // No writeback
let Inst{20} = L_bit;
let Inst{19-16} = Rn;
- let Inst{15} = 0;
- let Inst{14-0} = regs{14-0};
+ let Inst{15-0} = regs;
}
def DB_UPD :
T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
let Inst{21} = 1; // Writeback
let Inst{20} = L_bit;
let Inst{19-16} = Rn;
- let Inst{15} = 0;
- let Inst{14-0} = regs{14-0};
+ let Inst{15-0} = regs;
}
}
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:$Rm,
// FIXME: Eliminate t2ADDS/t2SUBS pseudo opcodes after adding tablegen
// support for an optional CPSR definition that corresponds to the DAG
// node's second value. We can then eliminate the implicit def of CPSR.
-defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
- IIC_iALUi, IIC_iALUr, IIC_iALUsi,
+defm t2ADDS : T2I_bin_s_irs <IIC_iALUi, IIC_iALUr, IIC_iALUsi,
BinOpFrag<(ARMaddc node:$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:$RHS)>>;
// (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
// The assume-no-carry-in form uses the negation of the input since add/sub
// The AddedComplexity preferences the first variant over the others since
// it can be shrunk to a 16-bit wide encoding, while the others cannot.
let AddedComplexity = 1 in
-def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
- (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
+def : T2Pat<(add GPR:$src, imm1_255_neg:$imm),
+ (t2SUBri GPR:$src, imm1_255_neg:$imm)>;
def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
(t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
(t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
+def : T2Pat<(add GPR:$src, imm0_65535_neg:$imm),
+ (t2SUBrr GPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
+
let AddedComplexity = 1 in
-def : T2Pat<(ARMaddc rGPR:$src, imm0_255_neg:$imm),
- (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
+def : T2Pat<(ARMaddc rGPR:$src, imm1_255_neg:$imm),
+ (t2SUBSri rGPR:$src, imm1_255_neg:$imm)>;
def : T2Pat<(ARMaddc rGPR:$src, t2_so_imm_neg:$imm),
(t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
+def : T2Pat<(ARMaddc rGPR:$src, imm0_65535_neg:$imm),
+ (t2SUBSrr rGPR:$src, (t2MOVi16 (imm_neg_XFORM imm:$imm)))>;
// The with-carry-in form matches bitwise not instead of the negation.
// Effectively, the inverse interpretation of the carry flag already accounts
// for part of the negation.
(t2SBCri rGPR:$src, imm0_255_not:$imm)>;
def : T2Pat<(ARMadde rGPR:$src, t2_so_imm_not:$imm, CPSR),
(t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
+def : T2Pat<(ARMadde rGPR:$src, imm0_65535_neg:$imm, CPSR),
+ (t2SBCrr rGPR:$src, (t2MOVi16 (imm_not_XFORM imm:$imm)))>;
// Select Bytes -- for disassembly only
//
defm t2LSL : T2I_sh_ir<0b00, "lsl", imm0_31,
- BinOpFrag<(shl node:$LHS, node:$RHS)>, "t2LSL">;
+ BinOpFrag<(shl node:$LHS, node:$RHS)>>;
defm t2LSR : T2I_sh_ir<0b01, "lsr", imm_sr,
- BinOpFrag<(srl node:$LHS, node:$RHS)>, "t2LSR">;
+ BinOpFrag<(srl node:$LHS, node:$RHS)>>;
defm t2ASR : T2I_sh_ir<0b10, "asr", imm_sr,
- BinOpFrag<(sra node:$LHS, node:$RHS)>, "t2ASR">;
+ BinOpFrag<(sra node:$LHS, node:$RHS)>>;
defm t2ROR : T2I_sh_ir<0b11, "ror", imm0_31,
- BinOpFrag<(rotr node:$LHS, node:$RHS)>, "t2ROR">;
+ BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
// (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
-def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
- (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
+def : T2Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
+ (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
let Uses = [CPSR] in {
def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
defm t2AND : T2I_bin_w_irs<0b0000, "and",
IIC_iBITi, IIC_iBITr, IIC_iBITsi,
- BinOpFrag<(and node:$LHS, node:$RHS)>, "t2AND", 1>;
+ BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
IIC_iBITi, IIC_iBITr, IIC_iBITsi,
- BinOpFrag<(or node:$LHS, node:$RHS)>, "t2ORR", 1>;
+ BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
IIC_iBITi, IIC_iBITr, IIC_iBITsi,
- BinOpFrag<(xor node:$LHS, node:$RHS)>, "t2EOR", 1>;
+ BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
IIC_iBITi, IIC_iBITr, IIC_iBITsi,
- BinOpFrag<(and node:$LHS, (not node:$RHS))>,
- "t2BIC">;
+ BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
class T2BitFI<dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
defm t2ORN : T2I_bin_irs<0b0011, "orn",
IIC_iBITi, IIC_iBITr, IIC_iBITsi,
- BinOpFrag<(or node:$LHS, (not node:$RHS))>,
- "t2ORN", 0, "">;
+ BinOpFrag<(or node:$LHS, (not node:$RHS))>, 0, "">;
/// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
/// unary operation that produces a value. These are predicable and can be
/// changed to modify CPSR.
multiclass T2I_un_irs<bits<4> opcod, string opc,
InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
- PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
+ PatFrag opnode,
+ bit Cheap = 0, bit ReMat = 0, bit MoveImm = 0> {
// shifted imm
def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
opc, "\t$Rd, $imm",
[(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
let isAsCheapAsAMove = Cheap;
let isReMaterializable = ReMat;
+ let isMoveImm = MoveImm;
let Inst{31-27} = 0b11110;
let Inst{25} = 0;
let Inst{24-21} = opcod;
let AddedComplexity = 1 in
defm t2MVN : T2I_un_irs <0b0011, "mvn",
IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
- UnOpFrag<(not node:$Src)>, 1, 1>;
+ UnOpFrag<(not node:$Src)>, 1, 1, 1>;
let AddedComplexity = 1 in
def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
(t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
+// top16Zero - answer true if the upper 16 bits of $src are 0, false otherwise
+def top16Zero: PatLeaf<(i32 rGPR:$src), [{
+ return CurDAG->MaskedValueIsZero(SDValue(N,0), APInt::getHighBitsSet(32, 16));
+ }]>;
+
+// so_imm_notSext is needed instead of so_imm_not, as the value of imm
+// will match the extended, not the original bitWidth for $src.
+def : T2Pat<(and top16Zero:$src, t2_so_imm_notSext:$imm),
+ (t2BICri rGPR:$src, t2_so_imm_notSext:$imm)>;
+
+
// FIXME: Disable this pattern on Darwin to workaround an assembler bug.
def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
(t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
def t2MLA: T2FourReg<
(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
"mla", "\t$Rd, $Rn, $Rm, $Ra",
- [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
+ [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]>,
+ Requires<[IsThumb2, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b000;
def t2MLS: T2FourReg<
(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
"mls", "\t$Rd, $Rn, $Rm, $Ra",
- [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
+ [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]>,
+ Requires<[IsThumb2, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b000;
} // isCommutable
// Multiply + accumulate
-def t2SMLAL : T2MulLong<0b100, 0b0000,
+def t2SMLAL : T2MlaLong<0b100, 0b0000,
(outs rGPR:$RdLo, rGPR:$RdHi),
- (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
- "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
+ (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
+ "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
+ RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
-def t2UMLAL : T2MulLong<0b110, 0b0000,
+def t2UMLAL : T2MlaLong<0b110, 0b0000,
(outs rGPR:$RdLo, rGPR:$RdHi),
- (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
- "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
+ (ins rGPR:$Rn, rGPR:$Rm, rGPR:$RLo, rGPR:$RHi), IIC_iMAC64,
+ "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
+ RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
def t2UMAAL : T2MulLong<0b110, 0b0110,
(outs rGPR:$RdLo, rGPR:$RdHi),
(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
"smmla", "\t$Rd, $Rn, $Rm, $Ra",
[(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
- Requires<[IsThumb2, HasThumb2DSP]> {
+ Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b101;
(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
"smmls", "\t$Rd, $Rn, $Rm, $Ra",
[(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
- Requires<[IsThumb2, HasThumb2DSP]> {
+ Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b110;
[(set rGPR:$Rd, (add rGPR:$Ra,
(opnode (sext_inreg rGPR:$Rn, i16),
(sext_inreg rGPR:$Rm, i16))))]>,
- Requires<[IsThumb2, HasThumb2DSP]> {
+ Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b001;
!strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
[(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
(sra rGPR:$Rm, (i32 16)))))]>,
- Requires<[IsThumb2, HasThumb2DSP]> {
+ Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b001;
!strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
[(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
(sext_inreg rGPR:$Rm, i16))))]>,
- Requires<[IsThumb2, HasThumb2DSP]> {
+ Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b001;
!strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
[(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
(sra rGPR:$Rm, (i32 16)))))]>,
- Requires<[IsThumb2, HasThumb2DSP]> {
+ Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b001;
!strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
[(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
(sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
- Requires<[IsThumb2, HasThumb2DSP]> {
+ Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b011;
!strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
[(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
(sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
- Requires<[IsThumb2, HasThumb2DSP]> {
+ Requires<[IsThumb2, HasThumb2DSP, UseMulOps]> {
let Inst{31-27} = 0b11111;
let Inst{26-23} = 0b0110;
let Inst{22-20} = 0b011;
// Division Instructions.
// Signed and unsigned division on v7-M
//
-def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
+def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
"sdiv", "\t$Rd, $Rn, $Rm",
[(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
Requires<[HasDivide, IsThumb2]> {
let Inst{7-4} = 0b1111;
}
-def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
+def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iDIV,
"udiv", "\t$Rd, $Rn, $Rm",
[(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
Requires<[HasDivide, IsThumb2]> {
//
defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
- BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>, "t2CMP">;
+ BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_imm:$imm),
(t2CMPri GPRnopc:$lhs, t2_so_imm:$imm)>;
def : T2Pat<(ARMcmpZ GPRnopc:$lhs, t2_so_reg:$rhs),
(t2CMPrs GPRnopc:$lhs, t2_so_reg:$rhs)>;
-//FIXME: Disable CMN, as CCodes are backwards from compare expectations
-// Compare-to-zero still works out, just not the relationals
-//defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
-// BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
-defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
- IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
- BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>,
- "t2CMNz">;
+let isCompare = 1, Defs = [CPSR] in {
+ // shifted imm
+ def t2CMNri : T2OneRegCmpImm<
+ (outs), (ins GPRnopc:$Rn, t2_so_imm:$imm), IIC_iCMPi,
+ "cmn", ".w\t$Rn, $imm",
+ [(ARMcmn GPRnopc:$Rn, (ineg t2_so_imm:$imm))]> {
+ let Inst{31-27} = 0b11110;
+ let Inst{25} = 0;
+ let Inst{24-21} = 0b1000;
+ let Inst{20} = 1; // The S bit.
+ let Inst{15} = 0;
+ let Inst{11-8} = 0b1111; // Rd
+ }
+ // register
+ def t2CMNzrr : T2TwoRegCmp<
+ (outs), (ins GPRnopc:$Rn, rGPR:$Rm), IIC_iCMPr,
+ "cmn", ".w\t$Rn, $Rm",
+ [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
+ GPRnopc:$Rn, rGPR:$Rm)]> {
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b01;
+ let Inst{24-21} = 0b1000;
+ let Inst{20} = 1; // The S bit.
+ let Inst{14-12} = 0b000; // imm3
+ let Inst{11-8} = 0b1111; // Rd
+ let Inst{7-6} = 0b00; // imm2
+ let Inst{5-4} = 0b00; // type
+ }
+ // shifted register
+ def t2CMNzrs : T2OneRegCmpShiftedReg<
+ (outs), (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm), IIC_iCMPsi,
+ "cmn", ".w\t$Rn, $ShiftedRm",
+ [(BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>
+ GPRnopc:$Rn, t2_so_reg:$ShiftedRm)]> {
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b01;
+ let Inst{24-21} = 0b1000;
+ let Inst{20} = 1; // The S bit.
+ let Inst{11-8} = 0b1111; // Rd
+ }
+}
-//def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
-// (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
+// Assembler aliases w/o the ".w" suffix.
+// No alias here for 'rr' version as not all instantiations of this multiclass
+// want one (CMP in particular, does not).
+def : t2InstAlias<"cmn${p} $Rn, $imm",
+ (t2CMNri GPRnopc:$Rn, t2_so_imm:$imm, pred:$p)>;
+def : t2InstAlias<"cmn${p} $Rn, $shift",
+ (t2CMNzrs GPRnopc:$Rn, t2_so_reg:$shift, pred:$p)>;
-def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
- (t2CMNzri GPRnopc:$src, t2_so_imm_neg:$imm)>;
+def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
+ (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
+
+def : T2Pat<(ARMcmpZ GPRnopc:$src, t2_so_imm_neg:$imm),
+ (t2CMNri GPRnopc:$src, t2_so_imm_neg:$imm)>;
defm t2TST : T2I_cmp_irs<0b0000, "tst",
IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
- BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>,
- "t2TST">;
+ BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
- BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>,
- "t2TEQ">;
+ BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
// Conditional moves
// FIXME: should be able to write a pattern for ARMcmov, but can't use
// a two-value operand where a dag node expects two operands. :(
let neverHasSideEffects = 1 in {
+
+let isCommutable = 1, isSelect = 1 in
def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
(ins rGPR:$false, rGPR:$Rm, pred:$p),
4, IIC_iCMOVr,
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 = $Rd"> {
IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
RegConstraint<"$false = $Rd">;
} // isCodeGenOnly = 1
+
} // neverHasSideEffects
//===----------------------------------------------------------------------===//
def t2ISB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
"isb", "\t$opt",
- []>, Requires<[IsThumb2, HasDB]> {
+ []>, Requires<[IsThumb, HasDB]> {
bits<4> opt;
let Inst{31-4} = 0xf3bf8f6;
let Inst{3-0} = opt;
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, addr_offset_none:$addr),
AddrModeNone, 4, NoItinerary,
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:$val))]>,
let Inst{15-14} = 0b10;
let Inst{12} = 1;
- bits<20> target;
+ bits<24> target;
let Inst{26} = target{19};
let Inst{11} = target{18};
let Inst{13} = target{17};
- let Inst{21-16} = target{16-11};
+ let Inst{25-16} = target{20-11};
let Inst{10-0} = target{10-0};
+ let DecoderMethod = "DecodeT2BInstruction";
}
let isNotDuplicable = 1, isIndirectBranch = 1 in {
let DecoderMethod = "DecodeThumb2BCCInstruction";
}
-// Tail calls. The Darwin version of thumb tail calls uses a t2 branch, so
+// Tail calls. The IOS version of thumb tail calls uses a t2 branch, so
// it goes here.
let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
- // Darwin version.
- let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
- Uses = [SP] in
+ // IOS version.
+ let Uses = [SP] in
def tTAILJMPd: tPseudoExpand<(outs),
- (ins uncondbrtarget:$dst, pred:$p, variable_ops),
+ (ins uncondbrtarget:$dst, pred:$p),
4, IIC_Br, [],
(t2B uncondbrtarget:$dst, pred:$p)>,
- Requires<[IsThumb2, IsDarwin]>;
+ Requires<[IsThumb2, IsIOS]>;
}
// IT block
// A6.3.4 Branches and miscellaneous control
// Table A6-14 Change Processor State, and hint instructions
-class T2I_hint<bits<8> op7_0, string opc, string asm>
- : T2I<(outs), (ins), NoItinerary, opc, asm, []> {
- let Inst{31-20} = 0xf3a;
- let Inst{19-16} = 0b1111;
- let Inst{15-14} = 0b10;
- let Inst{12} = 0;
- let Inst{10-8} = 0b000;
- let Inst{7-0} = op7_0;
+def t2HINT : T2I<(outs), (ins imm0_255:$imm), NoItinerary, "hint", "\t$imm",[]>{
+ bits<8> imm;
+ let Inst{31-8} = 0b111100111010111110000000;
+ let Inst{7-0} = imm;
}
-def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
-def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
-def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
-def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
-def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
+def : t2InstAlias<"hint$p.w $imm", (t2HINT imm0_255:$imm, pred:$p)>;
+def : t2InstAlias<"nop$p.w", (t2HINT 0, pred:$p)>;
+def : t2InstAlias<"yield$p.w", (t2HINT 1, pred:$p)>;
+def : t2InstAlias<"wfe$p.w", (t2HINT 2, pred:$p)>;
+def : t2InstAlias<"wfi$p.w", (t2HINT 3, pred:$p)>;
+def : t2InstAlias<"sev$p.w", (t2HINT 4, pred:$p)>;
def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
bits<4> opt;
// Secure Monitor Call is a system instruction.
// Option = Inst{19-16}
-def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt", []> {
+def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
+ []>, Requires<[IsThumb2, HasTrustZone]> {
let Inst{31-27} = 0b11110;
let Inst{26-20} = 0b1111111;
let Inst{15-12} = 0b1000;
def t2SRSIA : T2SRS<0b11, 0, (outs), (ins imm0_31:$mode), NoItinerary,
"srsia","\tsp, $mode", []>;
+
+def : t2InstAlias<"srsdb${p} $mode", (t2SRSDB imm0_31:$mode, pred:$p)>;
+def : t2InstAlias<"srsdb${p} $mode!", (t2SRSDB_UPD imm0_31:$mode, pred:$p)>;
+
+def : t2InstAlias<"srsia${p} $mode", (t2SRSIA imm0_31:$mode, pred:$p)>;
+def : t2InstAlias<"srsia${p} $mode!", (t2SRSIA_UPD imm0_31:$mode, pred:$p)>;
+
// Return From Exception is a system instruction.
class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
imm:$cp))]>,
Requires<[IsThumb2]>;
-// Pseudo isntruction that combines movs + predicated rsbmi
+// 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),
// 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]> {
+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;
def : t2InstAlias<"mrs${p} $Rd, cpsr", (t2MRS_AR GPR:$Rd, pred:$p)>;
-def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr", []>,
- Requires<[IsThumb2,IsARClass]> {
+def t2MRSsys_AR: T2I<(outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
+ []>, Requires<[IsThumb2,IsARClass]> {
bits<4> Rd;
let Inst{31-12} = 0b11110011111111111000;
let Inst{11-8} = Rd;
// the A/R class (a full msr_mask).
def t2MRS_M : T2I<(outs rGPR:$Rd), (ins msr_mask:$mask), NoItinerary,
"mrs", "\t$Rd, $mask", []>,
- Requires<[IsThumb2,IsMClass]> {
+ Requires<[IsThumb,IsMClass]> {
bits<4> Rd;
bits<8> mask;
let Inst{31-12} = 0b11110011111011111000;
// Move from ARM core register to Special Register
def t2MSR_M : T2I<(outs), (ins msr_mask:$SYSm, rGPR:$Rn),
NoItinerary, "msr", "\t$SYSm, $Rn", []>,
- Requires<[IsThumb2,IsMClass]> {
- bits<8> SYSm;
+ Requires<[IsThumb,IsMClass]> {
+ bits<12> SYSm;
bits<4> Rn;
let Inst{31-21} = 0b11110011100;
let Inst{20} = 0b0;
let Inst{19-16} = Rn;
let Inst{15-12} = 0b1000;
- let Inst{7-0} = SYSm;
+ let Inst{11-0} = SYSm;
}
c_imm:$CRm, imm0_7:$opc2),
[(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
imm:$CRm, imm:$opc2)]>;
+def : t2InstAlias<"mcr $cop, $opc1, $Rt, $CRn, $CRm",
+ (t2MCR p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
+ c_imm:$CRm, 0)>;
def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
(outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
c_imm:$CRm, imm0_7:$opc2),
[(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
imm:$CRm, imm:$opc2)]>;
+def : t2InstAlias<"mcr2 $cop, $opc1, $Rt, $CRn, $CRm",
+ (t2MCR2 p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
+ c_imm:$CRm, 0)>;
/* from coprocessor to ARM core register */
def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
(outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
c_imm:$CRm, imm0_7:$opc2), []>;
+def : t2InstAlias<"mrc $cop, $opc1, $Rt, $CRn, $CRm",
+ (t2MRC GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
+ c_imm:$CRm, 0)>;
def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
(outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
c_imm:$CRm, imm0_7:$opc2), []>;
+def : t2InstAlias<"mrc2 $cop, $opc1, $Rt, $CRn, $CRm",
+ (t2MRC2 GPR:$Rt, p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
+ c_imm:$CRm, 0)>;
def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
(t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
def : t2InstAlias<"add${s}${p} $Rd, $Rn, $ShiftedRm",
(t2ADDrs GPRnopc:$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)>;
+
+// add w/ negative immediates is just a 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${p} $Rd, $Rn, $imm",
+ (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
+def : t2InstAlias<"add${s}${p} $Rdn, $imm",
+ (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
+ cc_out:$s)>;
+def : t2InstAlias<"add${p} $Rdn, $imm",
+ (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
+
+def : t2InstAlias<"add${s}${p}.w $Rd, $Rn, $imm",
+ (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
+ cc_out:$s)>;
+def : t2InstAlias<"addw${p} $Rd, $Rn, $imm",
+ (t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
+def : t2InstAlias<"add${s}${p}.w $Rdn, $imm",
+ (t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
+ cc_out:$s)>;
+def : t2InstAlias<"addw${p} $Rdn, $imm",
+ (t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
+
// Aliases for SUB without the ".w" optional width specifier.
def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",
def : t2InstAlias<"sub${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}.w $Rdn, $Rm",
+ (t2SUBrr GPRnopc:$Rdn, GPRnopc:$Rdn, rGPR:$Rm, pred:$p, cc_out:$s)>;
+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, $Rm",
(t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
// Memory barriers
-def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb2, HasDB]>;
-def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
-def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;
+def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb, HasDB]>;
+def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb, HasDB]>;
+def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb, HasDB]>;
// Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
// width specifier.
def : t2InstAlias<"ldrsh${p} $Rt, $addr",
(t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
-// Alias for MVN without the ".w" optional width specifier.
+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, $ShiftedRm",
def : t2InstAlias<"pop${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)>;
(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, $imm",
+ (t2CMNri rGPR:$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)>;