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.
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_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; }
def t2_so_imm_neg : Operand<i32>, PatLeaf<(imm), [{
- return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
+ 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;
// 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, $imm"),
- (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rd, rGPR:$Rn,
- t2_so_imm:$imm, pred:$p,
- cc_out:$s)>;
+ (!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, $imm"),
- (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
- t2_so_imm:$imm, pred:$p,
- cc_out:$s)>;
+ (!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:$s)>;
}
/// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
multiclass T2I_rbin_s_is<PatFrag opnode> {
// shifted imm
def ri : t2PseudoInst<(outs rGPR:$Rd),
- (ins GPRnopc:$Rn, t2_so_imm:$imm, pred:$p),
+ (ins rGPR:$Rn, t2_so_imm:$imm, pred:$p),
4, IIC_iALUi,
[(set rGPR:$Rd, CPSR, (opnode t2_so_imm:$imm,
- GPRnopc:$Rn))]>;
+ rGPR:$Rn))]>;
// shifted register
def rs : t2PseudoInst<(outs rGPR:$Rd),
- (ins GPRnopc:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
+ (ins rGPR:$Rn, t2_so_reg:$ShiftedRm, pred:$p),
4, IIC_iALUsi,
[(set rGPR:$Rd, CPSR, (opnode t2_so_reg:$ShiftedRm,
- GPRnopc:$Rn))]>;
+ 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:$p)>;
}
/// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
(t2SUBri GPR:$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, 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_neg_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:$RHS))>, 0, "">;
/// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
/// unary operation that produces a value. These are predicable and can be
def : T2Pat<(and rGPR:$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:$imm)>,
} // isCommutable
// Multiply + accumulate
-def t2SMLAL : T2MulLong<0b100, 0b0000,
- (outs rGPR:$RdLo, rGPR:$RdHi),
+def t2SMLAL : T2MlaLong<0b100, 0b0000,
+ (outs rGPR:$RdLo, rGPR:$RdHi, rGPR:$RLo, rGPR:$RHi),
(ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
- "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
+ "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
+ RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
-def t2UMLAL : T2MulLong<0b110, 0b0000,
- (outs rGPR:$RdLo, rGPR:$RdHi),
+def t2UMLAL : T2MlaLong<0b110, 0b0000,
+ (outs rGPR:$RdLo, rGPR:$RdHi, rGPR:$RLo, rGPR:$RHi),
(ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
- "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
+ "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
+ RegConstraint<"$RLo = $RdLo, $RHi = $RdHi">;
def t2UMAAL : T2MulLong<0b110, 0b0110,
(outs rGPR:$RdLo, rGPR:$RdHi),
//
defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
- BinOpFrag<(ARMcmp node:$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:$ShiftedRm)]> {
+ let Inst{31-27} = 0b11101;
+ let Inst{26-25} = 0b01;
+ let Inst{24-21} = 0b1000;
+ let Inst{20} = 1; // The S bit.
+ let Inst{11-8} = 0b1111; // Rd
+ }
+}
+
+// Assembler aliases w/o the ".w" suffix.
+// No alias here for 'rr' version as not all instantiations of this multiclass
+// want one (CMP in particular, does not).
+def : t2InstAlias<"cmn${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<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
-// (t2CMNri GPR:$src, t2_so_imm_neg:$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),
- (t2CMNzri GPRnopc:$src, t2_so_imm_neg:$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 in
def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
(ins rGPR:$false, rGPR:$Rm, pred:$p),
4, IIC_iCMOVr,
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{13} = target{17};
let Inst{21-16} = target{16-11};
let Inst{10-0} = target{10-0};
+ let DecoderMethod = "DecodeT2BInstruction";
}
let isNotDuplicable = 1, isIndirectBranch = 1 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, IsIOS]>;
}
-let isCall = 1,
- // On non-IOS platforms R9 is callee-saved.
- Defs = [LR], Uses = [SP] in {
+let isCall = 1, Defs = [LR], Uses = [SP] in {
// mov lr, pc; b if callee is marked noreturn to avoid confusing the
// return stack predictor.
def t2BMOVPCB_CALL : tPseudoInst<(outs),
- (ins t_bltarget:$func, variable_ops),
+ (ins t_bltarget:$func),
6, IIC_Br, [(ARMcall_nolink tglobaladdr:$func)]>,
- Requires<[IsThumb, IsNotIOS]>;
-}
-
-let isCall = 1,
- // On IOS R9 is call-clobbered.
- // R7 is marked as a use to prevent frame-pointer assignments from being
- // moved above / below calls.
- Defs = [LR], Uses = [R7, SP] in {
- // mov lr, pc; b if callee is marked noreturn to avoid confusing the
- // return stack predictor.
- def t2BMOVPCBr9_CALL : tPseudoInst<(outs),
- (ins t_bltarget:$func, variable_ops),
- 6, IIC_Br, [(ARMcall_nolink tglobaladdr:$func)]>,
- Requires<[IsThumb, IsIOS]>;
+ Requires<[IsThumb]>;
}
// Direct calls
def : T2Pat<(ARMcall_nolink texternalsym:$func),
(t2BMOVPCB_CALL texternalsym:$func)>,
- Requires<[IsThumb, IsNotIOS]>;
-def : T2Pat<(ARMcall_nolink texternalsym:$func),
- (t2BMOVPCBr9_CALL texternalsym:$func)>,
- Requires<[IsThumb, IsIOS]>;
+ Requires<[IsThumb]>;
// IT block
let Defs = [ITSTATE] in
// A6.3.4 Branches and miscellaneous control
// Table A6-14 Change Processor State, and hint instructions
-class T2I_hint<bits<8> op7_0, string opc, string asm>
- : T2I<(outs), (ins), NoItinerary, opc, asm, []> {
- let Inst{31-20} = 0xf3a;
- let Inst{19-16} = 0b1111;
- let Inst{15-14} = 0b10;
- let Inst{12} = 0;
- let Inst{10-8} = 0b000;
- let Inst{7-0} = op7_0;
+def t2HINT : T2I<(outs), (ins imm0_255:$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$opt", []> {
bits<4> opt;
// A/R class MRS.
//
// A/R class can only move from CPSR or SPSR.
-def t2MRS_AR : T2I<(outs GPR:$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, $Rn", []>,
- Requires<[IsThumb2,IsMClass]> {
- bits<8> SYSm;
+ Requires<[IsThumb,IsMClass]> {
+ bits<12> SYSm;
bits<4> Rn;
let Inst{31-21} = 0b11110011100;
let Inst{20} = 0b0;
let Inst{19-16} = Rn;
let Inst{15-12} = 0b1000;
- let Inst{7-0} = SYSm;
+ let Inst{11-0} = SYSm;
}
(t2ADDrs GPRnopc:$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, $imm",
(t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm:$imm, pred:$p, cc_out:$s)>;
(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, $Rm",
(t2CMNzrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
(t2TSTrr GPRnopc:$Rn, rGPR:$Rm, pred:$p)>;
// Memory barriers
-def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb2, HasDB]>;
-def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb2, HasDB]>;
-def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb2, HasDB]>;
+def : InstAlias<"dmb", (t2DMB 0xf)>, Requires<[IsThumb, HasDB]>;
+def : InstAlias<"dsb", (t2DSB 0xf)>, Requires<[IsThumb, HasDB]>;
+def : InstAlias<"isb", (t2ISB 0xf)>, Requires<[IsThumb, HasDB]>;
// Alias for LDR, LDRB, LDRH, LDRSB, and LDRSH without the ".w" optional
// width specifier.
pred:$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)>;
+ (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)>;
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