: AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
pattern> {
// AM2 store w/ two operands: (GPR, am2offset)
+ // {13} 1 == Rm, 0 == imm12
+ // {12} isAdd
+ // {11-0} imm12/Rm
+ bits<14> offset;
+ bits<4> Rn;
+ let Inst{25} = offset{13};
+ let Inst{23} = offset{12};
+ let Inst{19-16} = Rn;
+ let Inst{11-0} = offset{11-0};
+}
+// FIXME: Merge with the above class when addrmode2 gets used for STR, STRB
+// but for now use this class for STRT and STRBT.
+class AI2stridxT<bit isByte, bit isPre, dag oops, dag iops,
+ IndexMode im, Format f, InstrItinClass itin, string opc,
+ string asm, string cstr, list<dag> pattern>
+ : AI2ldstidx<0, isByte, isPre, oops, iops, im, f, itin, opc, asm, cstr,
+ pattern> {
+ // AM2 store w/ two operands: (GPR, am2offset)
// {17-14} Rn
// {13} 1 == Rm, 0 == imm12
// {12} isAdd
let Inst{15-12} = Rt; // Rt
let Inst{7-4} = op;
}
+
+// FIXME: Merge with the above class when addrmode2 gets used for LDR, LDRB
+// but for now use this class for LDRSBT, LDRHT, LDSHT.
+class AI3ldstidxT<bits<4> op, bit op20, bit isLd, bit isPre, dag oops, dag iops,
+ IndexMode im, Format f, InstrItinClass itin, string opc,
+ string asm, string cstr, list<dag> pattern>
+ : I<oops, iops, AddrMode3, Size4Bytes, im, f, itin,
+ opc, asm, cstr, pattern> {
+ // {13} 1 == imm8, 0 == Rm
+ // {12-9} Rn
+ // {8} isAdd
+ // {7-4} imm7_4/zero
+ // {3-0} imm3_0/Rm
+ bits<14> addr;
+ bits<4> Rt;
+ let Inst{27-25} = 0b000;
+ let Inst{24} = isPre; // P bit
+ let Inst{23} = addr{8}; // U bit
+ let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
+ let Inst{20} = op20; // L bit
+ let Inst{19-16} = addr{12-9}; // Rn
+ let Inst{15-12} = Rt; // Rt
+ let Inst{11-8} = addr{7-4}; // imm7_4/zero
+ let Inst{7-4} = op;
+ let Inst{3-0} = addr{3-0}; // imm3_0/Rm
+ let AsmMatchConverter = "CvtLdWriteBackRegAddrMode3";
+}
+
class AI3stridx<bits<4> op, bit isByte, bit isPre, dag oops, dag iops,
IndexMode im, Format f, InstrItinClass itin, string opc,
string asm, string cstr, list<dag> pattern>
string opc, string asm, string cstr, list<dag> pattern>
: I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
opc, asm, cstr,pattern> {
+ // {13} 1 == imm8, 0 == Rm
+ // {12-9} Rn
+ // {8} isAdd
+ // {7-4} imm7_4/zero
+ // {3-0} imm3_0/Rm
+ bits<14> addr;
+ bits<4> Rt;
+ let Inst{3-0} = addr{3-0}; // imm3_0/Rm
let Inst{4} = 1;
let Inst{5} = 1; // H bit
let Inst{6} = 0; // S bit
let Inst{7} = 1;
+ let Inst{11-8} = addr{7-4}; // imm7_4/zero
+ let Inst{15-12} = Rt; // Rt
+ let Inst{19-16} = addr{12-9}; // Rn
let Inst{20} = 0; // L bit
let Inst{21} = 0; // W bit
+ let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
+ let Inst{23} = addr{8}; // U bit
let Inst{24} = 0; // P bit
let Inst{27-25} = 0b000;
}
class ARMPat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsARM];
}
+class ARMV5TPat<dag pattern, dag result> : Pat<pattern, result> {
+ list<Predicate> Predicates = [IsARM, HasV5T];
+}
class ARMV5TEPat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsARM, HasV5TE];
}
}
class T1LdStSP<bits<3> opB> : T1LoadStore<0b1001, opB>; // SP relative
+class T1BranchCond<bits<4> opcode> : Encoding16 {
+ let Inst{15-12} = opcode;
+}
+
// Helper classes to encode Thumb1 loads and stores. For immediates, the
// following bits are used for "opA" (see A6.2.4):
//
list<Predicate> Predicates = [IsThumb, IsThumb1Only];
}
+// T2v6Pat - Same as Pat<>, but requires V6T2 Thumb2 mode.
+class T2v6Pat<dag pattern, dag result> : Pat<pattern, result> {
+ list<Predicate> Predicates = [IsThumb2, HasV6T2];
+}
+
// T2Pat - Same as Pat<>, but requires that the compiler be in Thumb2 mode.
class T2Pat<dag pattern, dag result> : Pat<pattern, result> {
list<Predicate> Predicates = [IsThumb2];
// NEON 3 vector register format.
-class N3VCommon<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
- dag oops, dag iops, Format f, InstrItinClass itin,
- string opc, string dt, string asm, string cstr, list<dag> pattern>
+class N3VCommon<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
+ bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
+ string opc, string dt, string asm, string cstr,
+ list<dag> pattern>
: NDataI<oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
let Inst{24} = op24;
let Inst{23} = op23;
let Inst{5} = Vm{4};
}
-class N3VLane32<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
- dag oops, dag iops, Format f, InstrItinClass itin,
- string opc, string dt, string asm, string cstr, list<dag> pattern>
+class N3VLane32<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
+ bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
+ string opc, string dt, string asm, string cstr,
+ list<dag> pattern>
: N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
let Inst{5} = lane;
}
-class N3VLane16<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6, bit op4,
- dag oops, dag iops, Format f, InstrItinClass itin,
- string opc, string dt, string asm, string cstr, list<dag> pattern>
+class N3VLane16<bit op24, bit op23, bits<2> op21_20, bits<4> op11_8, bit op6,
+ bit op4, dag oops, dag iops, Format f, InstrItinClass itin,
+ string opc, string dt, string asm, string cstr,
+ list<dag> pattern>
: N3VCommon<op24, op23, op21_20, op11_8, op6, op4,
oops, iops, f, itin, opc, dt, asm, cstr, pattern> {
let Inst{11-8} = opcod2;
let Inst{6-5} = opcod3;
let Inst{4} = 1;
+ // A8.6.303, A8.6.328, A8.6.329
+ let Inst{3-0} = 0b0000;
let OutOperandList = oops;
let InOperandList = !con(iops, (ins pred:$p));