1 //===- Mips64InstrInfo.td - Mips64 Instruction Information -*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes Mips64 instructions.
12 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 // Mips Operand, Complex Patterns and Transformations Definitions.
16 //===----------------------------------------------------------------------===//
18 // Instruction operand types
19 def shamt_64 : Operand<i64>;
22 def uimm16_64 : Operand<i64> {
23 let PrintMethod = "printUnsignedImm";
26 // Transformation Function - get Imm - 32.
27 def Subtract32 : SDNodeXForm<imm, [{
28 return getImm(N, (unsigned)N->getZExtValue() - 32);
31 // shamt must fit in 6 bits.
32 def immZExt6 : ImmLeaf<i32, [{return Imm == (Imm & 0x3f);}]>;
34 //===----------------------------------------------------------------------===//
35 // Instructions specific format
36 //===----------------------------------------------------------------------===//
38 // 64-bit shift instructions.
39 let DecoderNamespace = "Mips64" in {
40 class shift_rotate_imm64<bits<6> func, bits<5> isRotate, string instr_asm,
42 shift_rotate_imm<func, isRotate, instr_asm, OpNode, immZExt6, shamt,
46 class Mult64<bits<6> func, string instr_asm, InstrItinClass itin>:
47 Mult<func, instr_asm, itin, CPU64Regs, [HI64, LO64]>;
48 class Div64<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
49 Div<op, func, instr_asm, itin, CPU64Regs, [HI64, LO64]>;
51 multiclass Atomic2Ops64<PatFrag Op, string Opstr> {
52 def #NAME# : Atomic2Ops<Op, Opstr, CPU64Regs, CPURegs>,
53 Requires<[NotN64, HasStandardEncoding]>;
54 def _P8 : Atomic2Ops<Op, Opstr, CPU64Regs, CPU64Regs>,
55 Requires<[IsN64, HasStandardEncoding]> {
56 let isCodeGenOnly = 1;
60 multiclass AtomicCmpSwap64<PatFrag Op, string Width> {
61 def #NAME# : AtomicCmpSwap<Op, Width, CPU64Regs, CPURegs>,
62 Requires<[NotN64, HasStandardEncoding]>;
63 def _P8 : AtomicCmpSwap<Op, Width, CPU64Regs, CPU64Regs>,
64 Requires<[IsN64, HasStandardEncoding]> {
65 let isCodeGenOnly = 1;
69 let usesCustomInserter = 1, Predicates = [HasMips64, HasStandardEncoding],
70 DecoderNamespace = "Mips64" in {
71 defm ATOMIC_LOAD_ADD_I64 : Atomic2Ops64<atomic_load_add_64, "load_add_64">;
72 defm ATOMIC_LOAD_SUB_I64 : Atomic2Ops64<atomic_load_sub_64, "load_sub_64">;
73 defm ATOMIC_LOAD_AND_I64 : Atomic2Ops64<atomic_load_and_64, "load_and_64">;
74 defm ATOMIC_LOAD_OR_I64 : Atomic2Ops64<atomic_load_or_64, "load_or_64">;
75 defm ATOMIC_LOAD_XOR_I64 : Atomic2Ops64<atomic_load_xor_64, "load_xor_64">;
76 defm ATOMIC_LOAD_NAND_I64 : Atomic2Ops64<atomic_load_nand_64, "load_nand_64">;
77 defm ATOMIC_SWAP_I64 : Atomic2Ops64<atomic_swap_64, "swap_64">;
78 defm ATOMIC_CMP_SWAP_I64 : AtomicCmpSwap64<atomic_cmp_swap_64, "64">;
81 //===----------------------------------------------------------------------===//
82 // Instruction definition
83 //===----------------------------------------------------------------------===//
84 let DecoderNamespace = "Mips64" in {
85 /// Arithmetic Instructions (ALU Immediate)
86 def DADDiu : ArithLogicI<0x19, "daddiu", add, simm16_64, immSExt16,
88 def DANDi : ArithLogicI<0x0c, "andi", and, uimm16_64, immZExt16, CPU64Regs>;
89 def SLTi64 : SetCC_I<0x0a, "slti", setlt, simm16_64, immSExt16, CPU64Regs>;
90 def SLTiu64 : SetCC_I<0x0b, "sltiu", setult, simm16_64, immSExt16, CPU64Regs>;
91 def ORi64 : ArithLogicI<0x0d, "ori", or, uimm16_64, immZExt16, CPU64Regs>;
92 def XORi64 : ArithLogicI<0x0e, "xori", xor, uimm16_64, immZExt16, CPU64Regs>;
93 def LUi64 : LoadUpper<0x0f, "lui", CPU64Regs, uimm16_64>;
95 /// Arithmetic Instructions (3-Operand, R-Type)
96 def DADDu : ArithLogicR<0x00, 0x2d, "daddu", add, IIAlu, CPU64Regs, 1>;
97 def DSUBu : ArithLogicR<0x00, 0x2f, "dsubu", sub, IIAlu, CPU64Regs>;
98 def SLT64 : SetCC_R<0x00, 0x2a, "slt", setlt, CPU64Regs>;
99 def SLTu64 : SetCC_R<0x00, 0x2b, "sltu", setult, CPU64Regs>;
100 def AND64 : ArithLogicR<0x00, 0x24, "and", and, IIAlu, CPU64Regs, 1>;
101 def OR64 : ArithLogicR<0x00, 0x25, "or", or, IIAlu, CPU64Regs, 1>;
102 def XOR64 : ArithLogicR<0x00, 0x26, "xor", xor, IIAlu, CPU64Regs, 1>;
103 def NOR64 : LogicNOR<0x00, 0x27, "nor", CPU64Regs>;
105 /// Shift Instructions
106 def DSLL : shift_rotate_imm64<0x38, 0x00, "dsll", shl>;
107 def DSRL : shift_rotate_imm64<0x3a, 0x00, "dsrl", srl>;
108 def DSRA : shift_rotate_imm64<0x3b, 0x00, "dsra", sra>;
109 def DSLLV : shift_rotate_reg<0x14, 0x00, "dsllv", shl, CPU64Regs>;
110 def DSRLV : shift_rotate_reg<0x16, 0x00, "dsrlv", srl, CPU64Regs>;
111 def DSRAV : shift_rotate_reg<0x17, 0x00, "dsrav", sra, CPU64Regs>;
113 // Rotate Instructions
114 let Predicates = [HasMips64r2, HasStandardEncoding],
115 DecoderNamespace = "Mips64" in {
116 def DROTR : shift_rotate_imm64<0x3a, 0x01, "drotr", rotr>;
117 def DROTRV : shift_rotate_reg<0x16, 0x01, "drotrv", rotr, CPU64Regs>;
120 let DecoderNamespace = "Mips64" in {
121 /// Load and Store Instructions
123 defm LB64 : LoadM64<0x20, "lb", sextloadi8>;
124 defm LBu64 : LoadM64<0x24, "lbu", zextloadi8>;
125 defm LH64 : LoadM64<0x21, "lh", sextloadi16_a>;
126 defm LHu64 : LoadM64<0x25, "lhu", zextloadi16_a>;
127 defm LW64 : LoadM64<0x23, "lw", sextloadi32_a>;
128 defm LWu64 : LoadM64<0x27, "lwu", zextloadi32_a>;
129 defm SB64 : StoreM64<0x28, "sb", truncstorei8>;
130 defm SH64 : StoreM64<0x29, "sh", truncstorei16_a>;
131 defm SW64 : StoreM64<0x2b, "sw", truncstorei32_a>;
132 defm LD : LoadM64<0x37, "ld", load_a>;
133 defm SD : StoreM64<0x3f, "sd", store_a>;
136 defm ULH64 : LoadM64<0x21, "ulh", sextloadi16_u, 1>;
137 defm ULHu64 : LoadM64<0x25, "ulhu", zextloadi16_u, 1>;
138 defm ULW64 : LoadM64<0x23, "ulw", sextloadi32_u, 1>;
139 defm USH64 : StoreM64<0x29, "ush", truncstorei16_u, 1>;
140 defm USW64 : StoreM64<0x2b, "usw", truncstorei32_u, 1>;
141 defm ULD : LoadM64<0x37, "uld", load_u, 1>;
142 defm USD : StoreM64<0x3f, "usd", store_u, 1>;
144 /// Load-linked, Store-conditional
145 def LLD : LLBase<0x34, "lld", CPU64Regs, mem>,
146 Requires<[NotN64, HasStandardEncoding]>;
147 def LLD_P8 : LLBase<0x34, "lld", CPU64Regs, mem64>,
148 Requires<[IsN64, HasStandardEncoding]> {
149 let isCodeGenOnly = 1;
151 def SCD : SCBase<0x3c, "scd", CPU64Regs, mem>,
152 Requires<[NotN64, HasStandardEncoding]>;
153 def SCD_P8 : SCBase<0x3c, "scd", CPU64Regs, mem64>,
154 Requires<[IsN64, HasStandardEncoding]> {
155 let isCodeGenOnly = 1;
158 /// Jump and Branch Instructions
159 def JR64 : JumpFR<0x00, 0x08, "jr", CPU64Regs>;
160 def BEQ64 : CBranch<0x04, "beq", seteq, CPU64Regs>;
161 def BNE64 : CBranch<0x05, "bne", setne, CPU64Regs>;
162 def BGEZ64 : CBranchZero<0x01, 1, "bgez", setge, CPU64Regs>;
163 def BGTZ64 : CBranchZero<0x07, 0, "bgtz", setgt, CPU64Regs>;
164 def BLEZ64 : CBranchZero<0x06, 0, "blez", setle, CPU64Regs>;
165 def BLTZ64 : CBranchZero<0x01, 0, "bltz", setlt, CPU64Regs>;
167 let DecoderNamespace = "Mips64" in
168 def JALR64 : JumpLinkReg<0x00, 0x09, "jalr", CPU64Regs>;
170 let DecoderNamespace = "Mips64" in {
171 /// Multiply and Divide Instructions.
172 def DMULT : Mult64<0x1c, "dmult", IIImul>;
173 def DMULTu : Mult64<0x1d, "dmultu", IIImul>;
174 def DSDIV : Div64<MipsDivRem, 0x1e, "ddiv", IIIdiv>;
175 def DUDIV : Div64<MipsDivRemU, 0x1f, "ddivu", IIIdiv>;
177 def MTHI64 : MoveToLOHI<0x11, "mthi", CPU64Regs, [HI64]>;
178 def MTLO64 : MoveToLOHI<0x13, "mtlo", CPU64Regs, [LO64]>;
179 def MFHI64 : MoveFromLOHI<0x10, "mfhi", CPU64Regs, [HI64]>;
180 def MFLO64 : MoveFromLOHI<0x12, "mflo", CPU64Regs, [LO64]>;
182 /// Sign Ext In Register Instructions.
183 def SEB64 : SignExtInReg<0x10, "seb", i8, CPU64Regs>;
184 def SEH64 : SignExtInReg<0x18, "seh", i16, CPU64Regs>;
187 def DCLZ : CountLeading0<0x24, "dclz", CPU64Regs>;
188 def DCLO : CountLeading1<0x25, "dclo", CPU64Regs>;
190 /// Double Word Swap Bytes/HalfWords
191 def DSBH : SubwordSwap<0x24, 0x2, "dsbh", CPU64Regs>;
192 def DSHD : SubwordSwap<0x24, 0x5, "dshd", CPU64Regs>;
194 def LEA_ADDiu64 : EffectiveAddress<"daddiu\t$rt, $addr", CPU64Regs, mem_ea_64>;
196 let Uses = [SP_64], DecoderNamespace = "Mips64" in
197 def DynAlloc64 : EffectiveAddress<"daddiu\t$rt, $addr", CPU64Regs, mem_ea_64>,
198 Requires<[IsN64, HasStandardEncoding]> {
199 let isCodeGenOnly = 1;
201 let DecoderNamespace = "Mips64" in {
202 def RDHWR64 : ReadHardware<CPU64Regs, HWRegs64>;
204 def DEXT : ExtBase<3, "dext", CPU64Regs>;
205 def DINS : InsBase<7, "dins", CPU64Regs>;
207 def DSLL64_32 : FR<0x3c, 0x00, (outs CPU64Regs:$rd), (ins CPURegs:$rt),
208 "dsll\t$rd, $rt, 32", [], IIAlu>;
209 def SLL64_32 : FR<0x0, 0x00, (outs CPU64Regs:$rd), (ins CPURegs:$rt),
210 "sll\t$rd, $rt, 0", [], IIAlu>;
211 let isCodeGenOnly = 1 in
212 def SLL64_64 : FR<0x0, 0x00, (outs CPU64Regs:$rd), (ins CPU64Regs:$rt),
213 "sll\t$rd, $rt, 0", [], IIAlu>;
215 //===----------------------------------------------------------------------===//
216 // Arbitrary patterns that map to one or more instructions
217 //===----------------------------------------------------------------------===//
220 let Predicates = [NotN64, HasStandardEncoding] in {
221 def : Pat<(i64 (extloadi1 addr:$src)), (LB64 addr:$src)>;
222 def : Pat<(i64 (extloadi8 addr:$src)), (LB64 addr:$src)>;
223 def : Pat<(i64 (extloadi16_a addr:$src)), (LH64 addr:$src)>;
224 def : Pat<(i64 (extloadi16_u addr:$src)), (ULH64 addr:$src)>;
225 def : Pat<(i64 (extloadi32_a addr:$src)), (LW64 addr:$src)>;
226 def : Pat<(i64 (extloadi32_u addr:$src)), (ULW64 addr:$src)>;
227 def : Pat<(zextloadi32_u addr:$a), (DSRL (DSLL (ULW64 addr:$a), 32), 32)>;
229 let Predicates = [IsN64, HasStandardEncoding] in {
230 def : Pat<(i64 (extloadi1 addr:$src)), (LB64_P8 addr:$src)>;
231 def : Pat<(i64 (extloadi8 addr:$src)), (LB64_P8 addr:$src)>;
232 def : Pat<(i64 (extloadi16_a addr:$src)), (LH64_P8 addr:$src)>;
233 def : Pat<(i64 (extloadi16_u addr:$src)), (ULH64_P8 addr:$src)>;
234 def : Pat<(i64 (extloadi32_a addr:$src)), (LW64_P8 addr:$src)>;
235 def : Pat<(i64 (extloadi32_u addr:$src)), (ULW64_P8 addr:$src)>;
236 def : Pat<(zextloadi32_u addr:$a), (DSRL (DSLL (ULW64_P8 addr:$a), 32), 32)>;
240 def : Pat<(MipsHi tglobaladdr:$in), (LUi64 tglobaladdr:$in)>;
241 def : Pat<(MipsHi tblockaddress:$in), (LUi64 tblockaddress:$in)>;
242 def : Pat<(MipsHi tjumptable:$in), (LUi64 tjumptable:$in)>;
243 def : Pat<(MipsHi tconstpool:$in), (LUi64 tconstpool:$in)>;
244 def : Pat<(MipsHi tglobaltlsaddr:$in), (LUi64 tglobaltlsaddr:$in)>;
246 def : Pat<(MipsLo tglobaladdr:$in), (DADDiu ZERO_64, tglobaladdr:$in)>;
247 def : Pat<(MipsLo tblockaddress:$in), (DADDiu ZERO_64, tblockaddress:$in)>;
248 def : Pat<(MipsLo tjumptable:$in), (DADDiu ZERO_64, tjumptable:$in)>;
249 def : Pat<(MipsLo tconstpool:$in), (DADDiu ZERO_64, tconstpool:$in)>;
250 def : Pat<(MipsLo tglobaltlsaddr:$in), (DADDiu ZERO_64, tglobaltlsaddr:$in)>;
252 def : Pat<(add CPU64Regs:$hi, (MipsLo tglobaladdr:$lo)),
253 (DADDiu CPU64Regs:$hi, tglobaladdr:$lo)>;
254 def : Pat<(add CPU64Regs:$hi, (MipsLo tblockaddress:$lo)),
255 (DADDiu CPU64Regs:$hi, tblockaddress:$lo)>;
256 def : Pat<(add CPU64Regs:$hi, (MipsLo tjumptable:$lo)),
257 (DADDiu CPU64Regs:$hi, tjumptable:$lo)>;
258 def : Pat<(add CPU64Regs:$hi, (MipsLo tconstpool:$lo)),
259 (DADDiu CPU64Regs:$hi, tconstpool:$lo)>;
260 def : Pat<(add CPU64Regs:$hi, (MipsLo tglobaltlsaddr:$lo)),
261 (DADDiu CPU64Regs:$hi, tglobaltlsaddr:$lo)>;
263 def : WrapperPat<tglobaladdr, DADDiu, CPU64Regs>;
264 def : WrapperPat<tconstpool, DADDiu, CPU64Regs>;
265 def : WrapperPat<texternalsym, DADDiu, CPU64Regs>;
266 def : WrapperPat<tblockaddress, DADDiu, CPU64Regs>;
267 def : WrapperPat<tjumptable, DADDiu, CPU64Regs>;
268 def : WrapperPat<tglobaltlsaddr, DADDiu, CPU64Regs>;
270 defm : BrcondPats<CPU64Regs, BEQ64, BNE64, SLT64, SLTu64, SLTi64, SLTiu64,
274 defm : SeteqPats<CPU64Regs, SLTiu64, XOR64, SLTu64, ZERO_64>;
275 defm : SetlePats<CPU64Regs, SLT64, SLTu64>;
276 defm : SetgtPats<CPU64Regs, SLT64, SLTu64>;
277 defm : SetgePats<CPU64Regs, SLT64, SLTu64>;
278 defm : SetgeImmPats<CPU64Regs, SLTi64, SLTiu64>;
280 // select MipsDynAlloc
281 def : Pat<(MipsDynAlloc addr:$f), (DynAlloc64 addr:$f)>,
282 Requires<[IsN64, HasStandardEncoding]>;
285 def : Pat<(i32 (trunc CPU64Regs:$src)),
286 (SLL (EXTRACT_SUBREG CPU64Regs:$src, sub_32), 0)>,
287 Requires<[IsN64, HasStandardEncoding]>;
289 // 32-to-64-bit extension
290 def : Pat<(i64 (anyext CPURegs:$src)), (SLL64_32 CPURegs:$src)>;
291 def : Pat<(i64 (zext CPURegs:$src)), (DSRL (DSLL64_32 CPURegs:$src), 32)>;
292 def : Pat<(i64 (sext CPURegs:$src)), (SLL64_32 CPURegs:$src)>;
294 // Sign extend in register
295 def : Pat<(i64 (sext_inreg CPU64Regs:$src, i32)), (SLL64_64 CPU64Regs:$src)>;
298 def : Pat<(bswap CPU64Regs:$rt), (DSHD (DSBH CPU64Regs:$rt))>;