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authorJyotsna Verma <jverma@codeaurora.org>2013-02-14 19:57:17 +0000
committerJyotsna Verma <jverma@codeaurora.org>2013-02-14 19:57:17 +0000
commit84a2c2bbb58dd0f91608d8d14b3139b9295ca036 (patch)
tree43af97a73e22ca64edfe2021f2c92ad16a6ba594 /lib/Target/Hexagon/HexagonInstrFormats.td
parentaefd14be3951d5b84cda5561655fe63549819d25 (diff)
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Hexagon: Change insn class to support instruction encoding.
This patch doesn't introduce any functionality changes. It adds some new fields to the Hexagon instruction classes and changes their layout to support instruction encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175205 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Hexagon/HexagonInstrFormats.td')
-rw-r--r--lib/Target/Hexagon/HexagonInstrFormats.td412
1 files changed, 193 insertions, 219 deletions
diff --git a/lib/Target/Hexagon/HexagonInstrFormats.td b/lib/Target/Hexagon/HexagonInstrFormats.td
index 71c620b131..587fa7d7f1 100644
--- a/lib/Target/Hexagon/HexagonInstrFormats.td
+++ b/lib/Target/Hexagon/HexagonInstrFormats.td
@@ -13,19 +13,19 @@
// *** Must match HexagonBaseInfo.h ***
//===----------------------------------------------------------------------===//
-class Type<bits<5> t> {
+class IType<bits<5> t> {
bits<5> Value = t;
}
-def TypePSEUDO : Type<0>;
-def TypeALU32 : Type<1>;
-def TypeCR : Type<2>;
-def TypeJR : Type<3>;
-def TypeJ : Type<4>;
-def TypeLD : Type<5>;
-def TypeST : Type<6>;
-def TypeSYSTEM : Type<7>;
-def TypeXTYPE : Type<8>;
-def TypeMARKER : Type<31>;
+def TypePSEUDO : IType<0>;
+def TypeALU32 : IType<1>;
+def TypeCR : IType<2>;
+def TypeJR : IType<3>;
+def TypeJ : IType<4>;
+def TypeLD : IType<5>;
+def TypeST : IType<6>;
+def TypeSYSTEM : IType<7>;
+def TypeXTYPE : IType<8>;
+def TypeENDLOOP: IType<31>;
// Maintain list of valid subtargets for each instruction.
class SubTarget<bits<4> value> {
@@ -44,8 +44,8 @@ def HasV5SubT : SubTarget<0x8>;
def NoV5SubT : SubTarget<0x7>;
// Addressing modes for load/store instructions
-class AddrModeType<bits<4> value> {
- bits<4> Value = value;
+class AddrModeType<bits<3> value> {
+ bits<3> Value = value;
}
def NoAddrMode : AddrModeType<0>; // No addressing mode
@@ -55,14 +55,35 @@ def BaseImmOffset : AddrModeType<3>; // Indirect with offset
def BaseLongOffset : AddrModeType<4>; // Indirect with long offset
def BaseRegOffset : AddrModeType<5>; // Indirect with register offset
+class MemAccessSize<bits<3> value> {
+ bits<3> Value = value;
+}
+
+def NoMemAccess : MemAccessSize<0>;// Not a memory acces instruction.
+def ByteAccess : MemAccessSize<1>;// Byte access instruction (memb).
+def HalfWordAccess : MemAccessSize<2>;// Half word access instruction (memh).
+def WordAccess : MemAccessSize<3>;// Word access instrution (memw).
+def DoubleWordAccess : MemAccessSize<4>;// Double word access instruction (memd)
+
+
//===----------------------------------------------------------------------===//
// Intruction Class Declaration +
//===----------------------------------------------------------------------===//
-class InstHexagon<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr, InstrItinClass itin, Type type> : Instruction {
- field bits<32> Inst;
+class OpcodeHexagon {
+ field bits<32> Inst = ?; // Default to an invalid insn.
+ bits<4> IClass = 0; // ICLASS
+ bits<2> IParse = 0; // Parse bits.
+
+ let Inst{31-28} = IClass;
+ let Inst{15-14} = IParse;
+
+ bits<1> zero = 0;
+}
+class InstHexagon<dag outs, dag ins, string asmstr, list<dag> pattern,
+ string cstr, InstrItinClass itin, IType type>
+ : Instruction, OpcodeHexagon {
let Namespace = "Hexagon";
dag OutOperandList = outs;
@@ -73,48 +94,63 @@ class InstHexagon<dag outs, dag ins, string asmstr, list<dag> pattern,
let Itinerary = itin;
let Size = 4;
- // *** Must match HexagonBaseInfo.h ***
+ // *** Must match MCTargetDesc/HexagonBaseInfo.h ***
+
// Instruction type according to the ISA.
- Type HexagonType = type;
- let TSFlags{4-0} = HexagonType.Value;
+ IType Type = type;
+ let TSFlags{4-0} = Type.Value;
+
// Solo instructions, i.e., those that cannot be in a packet with others.
- bits<1> isHexagonSolo = 0;
- let TSFlags{5} = isHexagonSolo;
+ bits<1> isSolo = 0;
+ let TSFlags{5} = isSolo;
+
// Predicated instructions.
bits<1> isPredicated = 0;
let TSFlags{6} = isPredicated;
+ bits<1> isPredicatedFalse = 0;
+ let TSFlags{7} = isPredicatedFalse;
bits<1> isPredicatedNew = 0;
- let TSFlags{7} = isPredicatedNew;
-
- // Stores that can be newified.
+ let TSFlags{8} = isPredicatedNew;
+
+ // New-value insn helper fields.
+ bits<1> isNewValue = 0;
+ let TSFlags{9} = isNewValue; // New-value consumer insn.
+ bits<1> hasNewValue = 0;
+ let TSFlags{10} = hasNewValue; // New-value producer insn.
+ bits<3> opNewValue = 0;
+ let TSFlags{13-11} = opNewValue; // New-value produced operand.
+ bits<2> opNewBits = 0;
+ let TSFlags{15-14} = opNewBits; // New-value opcode bits location: 0, 8, 16.
bits<1> isNVStorable = 0;
- let TSFlags{8} = isNVStorable;
-
- // New-value store instructions.
+ let TSFlags{16} = isNVStorable; // Store that can become new-value store.
bits<1> isNVStore = 0;
- let TSFlags{9} = isNVStore;
+ let TSFlags{17} = isNVStore; // New-value store insn.
// Immediate extender helper fields.
bits<1> isExtendable = 0;
- let TSFlags{10} = isExtendable; // Insn may be extended.
+ let TSFlags{18} = isExtendable; // Insn may be extended.
bits<1> isExtended = 0;
- let TSFlags{11} = isExtended; // Insn must be extended.
+ let TSFlags{19} = isExtended; // Insn must be extended.
bits<3> opExtendable = 0;
- let TSFlags{14-12} = opExtendable; // Which operand may be extended.
+ let TSFlags{22-20} = opExtendable; // Which operand may be extended.
bits<1> isExtentSigned = 0;
- let TSFlags{15} = isExtentSigned; // Signed or unsigned range.
+ let TSFlags{23} = isExtentSigned; // Signed or unsigned range.
bits<5> opExtentBits = 0;
- let TSFlags{20-16} = opExtentBits; //Number of bits of range before extending.
+ let TSFlags{28-24} = opExtentBits; //Number of bits of range before extending.
// If an instruction is valid on a subtarget (v2-v5), set the corresponding
// bit from validSubTargets. v2 is the least significant bit.
// By default, instruction is valid on all subtargets.
SubTarget validSubTargets = HasV2SubT;
- let TSFlags{24-21} = validSubTargets.Value;
+ let TSFlags{32-29} = validSubTargets.Value;
- // Addressing mode for load/store instrutions.
+ // Addressing mode for load/store instructions.
AddrModeType addrMode = NoAddrMode;
- let TSFlags{28-25} = addrMode.Value;
+ let TSFlags{35-33} = addrMode.Value;
+
+ // Memory access size for mem access instructions (load/store)
+ MemAccessSize accessSize = NoMemAccess;
+ let TSFlags{38-36} = accessSize.Value;
// Fields used for relation models.
string BaseOpcode = "";
@@ -124,6 +160,11 @@ class InstHexagon<dag outs, dag ins, string asmstr, list<dag> pattern,
string InputType = ""; // Input is "imm" or "reg" type.
string isMEMri = "false"; // Set to "true" for load/store with MEMri operand.
string isFloat = "false"; // Set to "true" for the floating-point load/store.
+ string isBrTaken = ""; // Set to "true"/"false" for jump instructions
+
+ let PredSense = !if(isPredicated, !if(isPredicatedFalse, "false", "true"),
+ "");
+ let PNewValue = !if(isPredicatedNew, "new", "");
// *** Must match MCTargetDesc/HexagonBaseInfo.h ***
}
@@ -134,187 +175,143 @@ class InstHexagon<dag outs, dag ins, string asmstr, list<dag> pattern,
// LD Instruction Class in V2/V3/V4.
// Definition of the instruction class NOT CHANGED.
-class LDInst<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", LD, TypeLD> {
- bits<5> rd;
- bits<5> rs;
- bits<13> imm13;
-}
+class LDInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, LD, TypeLD>;
-class LDInst2<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", LD, TypeLD> {
- bits<5> rd;
- bits<5> rs;
- bits<13> imm13;
- let mayLoad = 1;
-}
+let mayLoad = 1 in
+class LDInst2<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : LDInst<outs, ins, asmstr, pattern, cstr>;
+
+class CONSTLDInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : LDInst<outs, ins, asmstr, pattern, cstr>;
// LD Instruction Class in V2/V3/V4.
// Definition of the instruction class NOT CHANGED.
-class LDInstPost<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : InstHexagon<outs, ins, asmstr, pattern, cstr, LD, TypeLD> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
- bits<13> imm13;
-}
+class LDInstPost<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : LDInst<outs, ins, asmstr, pattern, cstr>;
+
+let mayLoad = 1 in
+class LD0Inst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : LDInst<outs, ins, asmstr, pattern, cstr>;
// ST Instruction Class in V2/V3 can take SLOT0 only.
// ST Instruction Class in V4 can take SLOT0 & SLOT1.
// Definition of the instruction class CHANGED from V2/V3 to V4.
-class STInst<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", ST, TypeST> {
- bits<5> rd;
- bits<5> rs;
- bits<13> imm13;
-}
+let mayStore = 1 in
+class STInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, ST, TypeST>;
-class STInst2<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", ST, TypeST> {
- bits<5> rd;
- bits<5> rs;
- bits<13> imm13;
- let mayStore = 1;
-}
+class STInst2<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : STInst<outs, ins, asmstr, pattern, cstr>;
-// SYSTEM Instruction Class in V4 can take SLOT0 only
-// In V2/V3 we used ST for this but in v4 ST can take SLOT0 or SLOT1.
-class SYSInst<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", SYS, TypeSYSTEM> {
- bits<5> rd;
- bits<5> rs;
- bits<13> imm13;
-}
+let mayStore = 1 in
+class ST0Inst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, ST0, TypeST>;
// ST Instruction Class in V2/V3 can take SLOT0 only.
// ST Instruction Class in V4 can take SLOT0 & SLOT1.
// Definition of the instruction class CHANGED from V2/V3 to V4.
-class STInstPost<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : InstHexagon<outs, ins, asmstr, pattern, cstr, ST, TypeST> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
- bits<13> imm13;
-}
+class STInstPost<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : STInst<outs, ins, asmstr, pattern, cstr>;
+
+// SYSTEM Instruction Class in V4 can take SLOT0 only
+// In V2/V3 we used ST for this but in v4 ST can take SLOT0 or SLOT1.
+class SYSInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, SYS, TypeSYSTEM>;
// ALU32 Instruction Class in V2/V3/V4.
// Definition of the instruction class NOT CHANGED.
-class ALU32Type<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", ALU32, TypeALU32> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
- bits<16> imm16;
- bits<16> imm16_2;
-}
+class ALU32Inst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, ALU32, TypeALU32>;
// ALU64 Instruction Class in V2/V3.
// XTYPE Instruction Class in V4.
// Definition of the instruction class NOT CHANGED.
// Name of the Instruction Class changed from ALU64 to XTYPE from V2/V3 to V4.
-class ALU64Type<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", ALU64, TypeXTYPE> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
- bits<16> imm16;
- bits<16> imm16_2;
-}
+class ALU64Inst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, ALU64, TypeXTYPE>;
+
+class ALU64_acc<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : ALU64Inst<outs, ins, asmstr, pattern, cstr>;
-class ALU64_acc<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : InstHexagon<outs, ins, asmstr, pattern, cstr, ALU64, TypeXTYPE> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
- bits<16> imm16;
- bits<16> imm16_2;
-}
// M Instruction Class in V2/V3.
// XTYPE Instruction Class in V4.
// Definition of the instruction class NOT CHANGED.
// Name of the Instruction Class changed from M to XTYPE from V2/V3 to V4.
-class MInst<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", M, TypeXTYPE> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
-}
+class MInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, M, TypeXTYPE>;
// M Instruction Class in V2/V3.
// XTYPE Instruction Class in V4.
// Definition of the instruction class NOT CHANGED.
// Name of the Instruction Class changed from M to XTYPE from V2/V3 to V4.
-class MInst_acc<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : InstHexagon<outs, ins, asmstr, pattern, cstr, M, TypeXTYPE> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
-}
+class MInst_acc<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : MInst<outs, ins, asmstr, pattern, cstr>;
// S Instruction Class in V2/V3.
// XTYPE Instruction Class in V4.
// Definition of the instruction class NOT CHANGED.
// Name of the Instruction Class changed from S to XTYPE from V2/V3 to V4.
-class SInst<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", S, TypeXTYPE> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
-}
+class SInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, S, TypeXTYPE>;
// S Instruction Class in V2/V3.
// XTYPE Instruction Class in V4.
// Definition of the instruction class NOT CHANGED.
// Name of the Instruction Class changed from S to XTYPE from V2/V3 to V4.
-class SInst_acc<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : InstHexagon<outs, ins, asmstr, pattern, cstr, S, TypeXTYPE> {
-// : InstHexagon<outs, ins, asmstr, pattern, cstr, S> {
-// : InstHexagon<outs, ins, asmstr, pattern, cstr, !if(V4T, XTYPE_V4, S)> {
- bits<5> rd;
- bits<5> rs;
- bits<5> rt;
-}
+class SInst_acc<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : SInst<outs, ins, asmstr, pattern, cstr>;
// J Instruction Class in V2/V3/V4.
// Definition of the instruction class NOT CHANGED.
-class JType<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", J, TypeJ> {
- bits<16> imm16;
-}
+class JInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, J, TypeJ>;
// JR Instruction Class in V2/V3/V4.
// Definition of the instruction class NOT CHANGED.
-class JRType<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", JR, TypeJR> {
- bits<5> rs;
- bits<5> pu; // Predicate register
-}
+class JRInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, JR, TypeJR>;
// CR Instruction Class in V2/V3/V4.
// Definition of the instruction class NOT CHANGED.
-class CRInst<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", CR, TypeCR> {
- bits<5> rs;
- bits<10> imm10;
-}
+class CRInst<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, CR, TypeCR>;
-class Marker<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", MARKER, TypeMARKER> {
- let isCodeGenOnly = 1;
- let isPseudo = 1;
-}
+let isCodeGenOnly = 1, isPseudo = 1 in
+class Endloop<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, ENDLOOP, TypeENDLOOP>;
-class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
- : InstHexagon<outs, ins, asmstr, pattern, "", PSEUDO, TypePSEUDO> {
- let isCodeGenOnly = 1;
- let isPseudo = 1;
-}
+let isCodeGenOnly = 1, isPseudo = 1 in
+class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, PSEUDO, TypePSEUDO>;
+
+let isCodeGenOnly = 1, isPseudo = 1 in
+class PseudoM<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr="">
+ : InstHexagon<outs, ins, asmstr, pattern, cstr, PSEUDOM, TypePSEUDO>;
//===----------------------------------------------------------------------===//
// Intruction Classes Definitions -
@@ -324,75 +321,52 @@ class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
//
// ALU32 patterns
//.
-class ALU32_rr<dag outs, dag ins, string asmstr, list<dag> pattern>
- : ALU32Type<outs, ins, asmstr, pattern> {
-}
+class ALU32_rr<dag outs, dag ins, string asmstr, list<dag> pattern,
+ string cstr = "">
+ : ALU32Inst<outs, ins, asmstr, pattern, cstr>;
-class ALU32_ir<dag outs, dag ins, string asmstr, list<dag> pattern>
- : ALU32Type<outs, ins, asmstr, pattern> {
- let rt{0-4} = 0;
-}
+class ALU32_ir<dag outs, dag ins, string asmstr, list<dag> pattern,
+ string cstr = "">
+ : ALU32Inst<outs, ins, asmstr, pattern, cstr>;
-class ALU32_ri<dag outs, dag ins, string asmstr, list<dag> pattern>
- : ALU32Type<outs, ins, asmstr, pattern> {
- let rt{0-4} = 0;
-}
+class ALU32_ri<dag outs, dag ins, string asmstr, list<dag> pattern,
+ string cstr = "">
+ : ALU32Inst<outs, ins, asmstr, pattern, cstr>;
-class ALU32_ii<dag outs, dag ins, string asmstr, list<dag> pattern>
- : ALU32Type<outs, ins, asmstr, pattern> {
- let rt{0-4} = 0;
-}
+class ALU32_ii<dag outs, dag ins, string asmstr, list<dag> pattern,
+ string cstr = "">
+ : ALU32Inst<outs, ins, asmstr, pattern, cstr>;
//
// ALU64 patterns.
//
-class ALU64_rr<dag outs, dag ins, string asmstr, list<dag> pattern>
- : ALU64Type<outs, ins, asmstr, pattern> {
-}
-
-class ALU64_ri<dag outs, dag ins, string asmstr, list<dag> pattern>
- : ALU64Type<outs, ins, asmstr, pattern> {
- let rt{0-4} = 0;
-}
-
-// J Type Instructions.
-class JInst<dag outs, dag ins, string asmstr, list<dag> pattern>
- : JType<outs, ins, asmstr, pattern> {
-}
-
-// JR type Instructions.
-class JRInst<dag outs, dag ins, string asmstr, list<dag> pattern>
- : JRType<outs, ins, asmstr, pattern> {
-}
+class ALU64_rr<dag outs, dag ins, string asmstr, list<dag> pattern,
+ string cstr = "">
+ : ALU64Inst<outs, ins, asmstr, pattern, cstr>;
+class ALU64_ri<dag outs, dag ins, string asmstr, list<dag> pattern,
+ string cstr = "">
+ : ALU64Inst<outs, ins, asmstr, pattern, cstr>;
// Post increment ST Instruction.
-class STInstPI<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : STInstPost<outs, ins, asmstr, pattern, cstr> {
- let rt{0-4} = 0;
-}
+class STInstPI<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : STInst<outs, ins, asmstr, pattern, cstr>;
-class STInst2PI<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : STInstPost<outs, ins, asmstr, pattern, cstr> {
- let rt{0-4} = 0;
- let mayStore = 1;
-}
+let mayStore = 1 in
+class STInst2PI<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : STInst<outs, ins, asmstr, pattern, cstr>;
// Post increment LD Instruction.
-class LDInstPI<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : LDInstPost<outs, ins, asmstr, pattern, cstr> {
- let rt{0-4} = 0;
-}
-
-class LDInst2PI<dag outs, dag ins, string asmstr, list<dag> pattern,
- string cstr>
- : LDInstPost<outs, ins, asmstr, pattern, cstr> {
- let rt{0-4} = 0;
- let mayLoad = 1;
-}
+class LDInstPI<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : LDInst<outs, ins, asmstr, pattern, cstr>;
+
+let mayLoad = 1 in
+class LDInst2PI<dag outs, dag ins, string asmstr, list<dag> pattern = [],
+ string cstr = "">
+ : LDInst<outs, ins, asmstr, pattern, cstr>;
//===----------------------------------------------------------------------===//
// V4 Instruction Format Definitions +