/3rd_party/llvm/lib/Target/X86/X86InstrArithmetic.td

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  1. //===-- X86InstrArithmetic.td - Integer Arithmetic Instrs --*- tablegen -*-===//
    2. 

  2. //
    3. 

  3. //                     The LLVM Compiler Infrastructure
    4. 

  4. //
    5. 

  5. // This file is distributed under the University of Illinois Open Source
    6. 

  6. // License. See LICENSE.TXT for details.
    7. 

  7. //
    8. 

  8. //===----------------------------------------------------------------------===//
    9. 

  9. //
    10. 

  10. // This file describes the integer arithmetic instructions in the X86
    11. 

  11. // architecture.
    12. 

  12. //
    13. 

  13. //===----------------------------------------------------------------------===//
    14. 

  14. 

  15. //===----------------------------------------------------------------------===//
    16. 

  16. // LEA - Load Effective Address
    17. 

  17. let SchedRW = [WriteLEA] in {
    18. 

  18. let neverHasSideEffects = 1 in
    19. 

  19. def LEA16r   : I<0x8D, MRMSrcMem,
    20. 

  20.                  (outs GR16:$dst), (ins i32mem:$src),
    21. 

  21.                  "lea{w}\t{$src|$dst}, {$dst|$src}", [], IIC_LEA_16>, OpSize;
    22. 

  22. let isReMaterializable = 1 in
    23. 

  23. def LEA32r   : I<0x8D, MRMSrcMem,
    24. 

  24.                  (outs GR32:$dst), (ins i32mem:$src),
    25. 

  25.                  "lea{l}\t{$src|$dst}, {$dst|$src}",
    26. 

  26.                  [(set GR32:$dst, lea32addr:$src)], IIC_LEA>,
    27. 

  27.                  Requires<[In32BitMode]>;
    28. 

  28. 

  29. def LEA64_32r : I<0x8D, MRMSrcMem,
    30. 

  30.                   (outs GR32:$dst), (ins lea64_32mem:$src),
    31. 

  31.                   "lea{l}\t{$src|$dst}, {$dst|$src}",
    32. 

  32.                   [(set GR32:$dst, lea64_32addr:$src)], IIC_LEA>,
    33. 

  33.                   Requires<[In64BitMode]>;
    34. 

  34. 

  35. let isReMaterializable = 1 in
    36. 

  36. def LEA64r   : RI<0x8D, MRMSrcMem, (outs GR64:$dst), (ins lea64mem:$src),
    37. 

  37.                   "lea{q}\t{$src|$dst}, {$dst|$src}",
    38. 

  38.                   [(set GR64:$dst, lea64addr:$src)], IIC_LEA>;
    39. 

  39. } // SchedRW
    40. 

  40. 

  41. //===----------------------------------------------------------------------===//
    42. 

  42. //  Fixed-Register Multiplication and Division Instructions.
    43. 

  43. //
    44. 

  44. 

  45. // SchedModel info for instruction that loads one value and gets the second
    46. 

  46. // (and possibly third) value from a register.
    47. 

  47. // This is used for instructions that put the memory operands before other
    48. 

  48. // uses.
    49. 

  49. class SchedLoadReg<SchedWrite SW> : Sched<[SW,
    50. 

  50.   // Memory operand.
    51. 

  51.   ReadDefault, ReadDefault, ReadDefault, ReadDefault, ReadDefault,
    52. 

  52.   // Register reads (implicit or explicit).
    53. 

  53.   ReadAfterLd, ReadAfterLd]>;
    54. 

  54. 

  55. // Extra precision multiplication
    56. 

  56. 

  57. // AL is really implied by AX, but the registers in Defs must match the
    58. 

  58. // SDNode results (i8, i32).
    59. 

  59. // AL,AH = AL*GR8
    60. 

  60. let Defs = [AL,EFLAGS,AX], Uses = [AL] in
    61. 

  61. def MUL8r  : I<0xF6, MRM4r, (outs),  (ins GR8:$src), "mul{b}\t$src",
    62. 

  62.                // FIXME: Used for 8-bit mul, ignore result upper 8 bits.
    63. 

  63.                // This probably ought to be moved to a def : Pat<> if the
    64. 

  64.                // syntax can be accepted.
    65. 

  65.                [(set AL, (mul AL, GR8:$src)),
    66. 

  66.                 (implicit EFLAGS)], IIC_MUL8>, Sched<[WriteIMul]>;
    67. 

  67. // AX,DX = AX*GR16
    68. 

  68. let Defs = [AX,DX,EFLAGS], Uses = [AX], neverHasSideEffects = 1 in
    69. 

  69. def MUL16r : I<0xF7, MRM4r, (outs),  (ins GR16:$src),
    70. 

  70.                "mul{w}\t$src",
    71. 

  71.                [], IIC_MUL16_REG>, OpSize, Sched<[WriteIMul]>;
    72. 

  72. // EAX,EDX = EAX*GR32
    73. 

  73. let Defs = [EAX,EDX,EFLAGS], Uses = [EAX], neverHasSideEffects = 1 in
    74. 

  74. def MUL32r : I<0xF7, MRM4r, (outs),  (ins GR32:$src),
    75. 

  75.                "mul{l}\t$src",
    76. 

  76.                [/*(set EAX, EDX, EFLAGS, (X86umul_flag EAX, GR32:$src))*/],
    77. 

  77.                IIC_MUL32_REG>, Sched<[WriteIMul]>;
    78. 

  78. // RAX,RDX = RAX*GR64
    79. 

  79. let Defs = [RAX,RDX,EFLAGS], Uses = [RAX], neverHasSideEffects = 1 in
    80. 

  80. def MUL64r : RI<0xF7, MRM4r, (outs), (ins GR64:$src),
    81. 

  81.                 "mul{q}\t$src",
    82. 

  82.                 [/*(set RAX, RDX, EFLAGS, (X86umul_flag RAX, GR64:$src))*/],
    83. 

  83.                 IIC_MUL64>, Sched<[WriteIMul]>;
    84. 

  84. // AL,AH = AL*[mem8]
    85. 

  85. let Defs = [AL,EFLAGS,AX], Uses = [AL] in
    86. 

  86. def MUL8m  : I<0xF6, MRM4m, (outs), (ins i8mem :$src),
    87. 

  87.                "mul{b}\t$src",
    88. 

  88.                // FIXME: Used for 8-bit mul, ignore result upper 8 bits.
    89. 

  89.                // This probably ought to be moved to a def : Pat<> if the
    90. 

  90.                // syntax can be accepted.
    91. 

  91.                [(set AL, (mul AL, (loadi8 addr:$src))),
    92. 

  92.                 (implicit EFLAGS)], IIC_MUL8>, SchedLoadReg<WriteIMulLd>;
    93. 

  93. // AX,DX = AX*[mem16]
    94. 

  94. let mayLoad = 1, neverHasSideEffects = 1 in {
    95. 

  95. let Defs = [AX,DX,EFLAGS], Uses = [AX] in
    96. 

  96. def MUL16m : I<0xF7, MRM4m, (outs), (ins i16mem:$src),
    97. 

  97.                "mul{w}\t$src",
    98. 

  98.                [], IIC_MUL16_MEM>, OpSize, SchedLoadReg<WriteIMulLd>;
    99. 

  99. // EAX,EDX = EAX*[mem32]
    100. 

  100. let Defs = [EAX,EDX,EFLAGS], Uses = [EAX] in
    101. 

  101. def MUL32m : I<0xF7, MRM4m, (outs), (ins i32mem:$src),
    102. 

  102.               "mul{l}\t$src",
    103. 

  103.               [], IIC_MUL32_MEM>, SchedLoadReg<WriteIMulLd>;
    104. 

  104. // RAX,RDX = RAX*[mem64]
    105. 

  105. let Defs = [RAX,RDX,EFLAGS], Uses = [RAX] in
    106. 

  106. def MUL64m : RI<0xF7, MRM4m, (outs), (ins i64mem:$src),
    107. 

  107.                 "mul{q}\t$src", [], IIC_MUL64>, SchedLoadReg<WriteIMulLd>;
    108. 

  108. }
    109. 

  109. 

  110. let neverHasSideEffects = 1 in {
    111. 

  111. // AL,AH = AL*GR8
    112. 

  112. let Defs = [AL,EFLAGS,AX], Uses = [AL] in
    113. 

  113. def IMUL8r  : I<0xF6, MRM5r, (outs),  (ins GR8:$src), "imul{b}\t$src", [],
    114. 

  114.               IIC_IMUL8>, Sched<[WriteIMul]>;
    115. 

  115. // AX,DX = AX*GR16
    116. 

  116. let Defs = [AX,DX,EFLAGS], Uses = [AX] in
    117. 

  117. def IMUL16r : I<0xF7, MRM5r, (outs),  (ins GR16:$src), "imul{w}\t$src", [],
    118. 

  118.               IIC_IMUL16_RR>, OpSize, Sched<[WriteIMul]>;
    119. 

  119. // EAX,EDX = EAX*GR32
    120. 

  120. let Defs = [EAX,EDX,EFLAGS], Uses = [EAX] in
    121. 

  121. def IMUL32r : I<0xF7, MRM5r, (outs),  (ins GR32:$src), "imul{l}\t$src", [],
    122. 

  122.               IIC_IMUL32_RR>, Sched<[WriteIMul]>;
    123. 

  123. // RAX,RDX = RAX*GR64
    124. 

  124. let Defs = [RAX,RDX,EFLAGS], Uses = [RAX] in
    125. 

  125. def IMUL64r : RI<0xF7, MRM5r, (outs), (ins GR64:$src), "imul{q}\t$src", [],
    126. 

  126.               IIC_IMUL64_RR>, Sched<[WriteIMul]>;
    127. 

  127. 

  128. let mayLoad = 1 in {
    129. 

  129. // AL,AH = AL*[mem8]
    130. 

  130. let Defs = [AL,EFLAGS,AX], Uses = [AL] in
    131. 

  131. def IMUL8m  : I<0xF6, MRM5m, (outs), (ins i8mem :$src),
    132. 

  132.                 "imul{b}\t$src", [], IIC_IMUL8>, SchedLoadReg<WriteIMulLd>;
    133. 

  133. // AX,DX = AX*[mem16]
    134. 

  134. let Defs = [AX,DX,EFLAGS], Uses = [AX] in
    135. 

  135. def IMUL16m : I<0xF7, MRM5m, (outs), (ins i16mem:$src),
    136. 

  136.                 "imul{w}\t$src", [], IIC_IMUL16_MEM>, OpSize,
    137. 

  137.               SchedLoadReg<WriteIMulLd>;
    138. 

  138. // EAX,EDX = EAX*[mem32]
    139. 

  139. let Defs = [EAX,EDX,EFLAGS], Uses = [EAX] in
    140. 

  140. def IMUL32m : I<0xF7, MRM5m, (outs), (ins i32mem:$src),
    141. 

  141.                 "imul{l}\t$src", [], IIC_IMUL32_MEM>, SchedLoadReg<WriteIMulLd>;
    142. 

  142. // RAX,RDX = RAX*[mem64]
    143. 

  143. let Defs = [RAX,RDX,EFLAGS], Uses = [RAX] in
    144. 

  144. def IMUL64m : RI<0xF7, MRM5m, (outs), (ins i64mem:$src),
    145. 

  145.                  "imul{q}\t$src", [], IIC_IMUL64>, SchedLoadReg<WriteIMulLd>;
    146. 

  146. }
    147. 

  147. } // neverHasSideEffects
    148. 

  148. 

  149. 

  150. let Defs = [EFLAGS] in {
    151. 

  151. let Constraints = "$src1 = $dst" in {
    152. 

  152. 

  153. let isCommutable = 1, SchedRW = [WriteIMul] in {
    154. 

  154. // X = IMUL Y, Z --> X = IMUL Z, Y
    155. 

  155. // Register-Register Signed Integer Multiply
    156. 

  156. def IMUL16rr : I<0xAF, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src1,GR16:$src2),
    157. 

  157.                  "imul{w}\t{$src2, $dst|$dst, $src2}",
    158. 

  158.                  [(set GR16:$dst, EFLAGS,
    159. 

  159.                        (X86smul_flag GR16:$src1, GR16:$src2))], IIC_IMUL16_RR>,
    160. 

  160.                        TB, OpSize;
    161. 

  161. def IMUL32rr : I<0xAF, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src1,GR32:$src2),
    162. 

  162.                  "imul{l}\t{$src2, $dst|$dst, $src2}",
    163. 

  163.                  [(set GR32:$dst, EFLAGS,
    164. 

  164.                        (X86smul_flag GR32:$src1, GR32:$src2))], IIC_IMUL32_RR>,
    165. 

  165.                  TB;
    166. 

  166. def IMUL64rr : RI<0xAF, MRMSrcReg, (outs GR64:$dst),
    167. 

  167.                                    (ins GR64:$src1, GR64:$src2),
    168. 

  168.                   "imul{q}\t{$src2, $dst|$dst, $src2}",
    169. 

  169.                   [(set GR64:$dst, EFLAGS,
    170. 

  170.                         (X86smul_flag GR64:$src1, GR64:$src2))], IIC_IMUL64_RR>,
    171. 

  171.                  TB;
    172. 

  172. } // isCommutable, SchedRW
    173. 

  173. 

  174. // Register-Memory Signed Integer Multiply
    175. 

  175. let SchedRW = [WriteIMulLd, ReadAfterLd] in {
    176. 

  176. def IMUL16rm : I<0xAF, MRMSrcMem, (outs GR16:$dst),
    177. 

  177.                                   (ins GR16:$src1, i16mem:$src2),
    178. 

  178.                  "imul{w}\t{$src2, $dst|$dst, $src2}",
    179. 

  179.                  [(set GR16:$dst, EFLAGS,
    180. 

  180.                        (X86smul_flag GR16:$src1, (load addr:$src2)))],
    181. 

  181.                        IIC_IMUL16_RM>,
    182. 

  182.                TB, OpSize;
    183. 

  183. def IMUL32rm : I<0xAF, MRMSrcMem, (outs GR32:$dst),
    184. 

  184.                  (ins GR32:$src1, i32mem:$src2),
    185. 

  185.                  "imul{l}\t{$src2, $dst|$dst, $src2}",
    186. 

  186.                  [(set GR32:$dst, EFLAGS,
    187. 

  187.                        (X86smul_flag GR32:$src1, (load addr:$src2)))],
    188. 

  188.                        IIC_IMUL32_RM>,
    189. 

  189.                TB;
    190. 

  190. def IMUL64rm : RI<0xAF, MRMSrcMem, (outs GR64:$dst),
    191. 

  191.                                    (ins GR64:$src1, i64mem:$src2),
    192. 

  192.                   "imul{q}\t{$src2, $dst|$dst, $src2}",
    193. 

  193.                   [(set GR64:$dst, EFLAGS,
    194. 

  194.                         (X86smul_flag GR64:$src1, (load addr:$src2)))],
    195. 

  195.                         IIC_IMUL64_RM>,
    196. 

  196.                TB;
    197. 

  197. } // SchedRW
    198. 

  198. } // Constraints = "$src1 = $dst"
    199. 

  199. 

  200. } // Defs = [EFLAGS]
    201. 

  201. 

  202. // Surprisingly enough, these are not two address instructions!
    203. 

  203. let Defs = [EFLAGS] in {
    204. 

  204. let SchedRW = [WriteIMul] in {
    205. 

  205. // Register-Integer Signed Integer Multiply
    206. 

  206. def IMUL16rri  : Ii16<0x69, MRMSrcReg,                      // GR16 = GR16*I16
    207. 

  207.                       (outs GR16:$dst), (ins GR16:$src1, i16imm:$src2),
    208. 

  208.                       "imul{w}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    209. 

  209.                       [(set GR16:$dst, EFLAGS,
    210. 

  210.                             (X86smul_flag GR16:$src1, imm:$src2))],
    211. 

  211.                             IIC_IMUL16_RRI>, OpSize;
    212. 

  212. def IMUL16rri8 : Ii8<0x6B, MRMSrcReg,                       // GR16 = GR16*I8
    213. 

  213.                      (outs GR16:$dst), (ins GR16:$src1, i16i8imm:$src2),
    214. 

  214.                      "imul{w}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    215. 

  215.                      [(set GR16:$dst, EFLAGS,
    216. 

  216.                            (X86smul_flag GR16:$src1, i16immSExt8:$src2))],
    217. 

  217.                            IIC_IMUL16_RRI>,
    218. 

  218.                  OpSize;
    219. 

  219. def IMUL32rri  : Ii32<0x69, MRMSrcReg,                      // GR32 = GR32*I32
    220. 

  220.                       (outs GR32:$dst), (ins GR32:$src1, i32imm:$src2),
    221. 

  221.                       "imul{l}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    222. 

  222.                       [(set GR32:$dst, EFLAGS,
    223. 

  223.                             (X86smul_flag GR32:$src1, imm:$src2))],
    224. 

  224.                             IIC_IMUL32_RRI>;
    225. 

  225. def IMUL32rri8 : Ii8<0x6B, MRMSrcReg,                       // GR32 = GR32*I8
    226. 

  226.                      (outs GR32:$dst), (ins GR32:$src1, i32i8imm:$src2),
    227. 

  227.                      "imul{l}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    228. 

  228.                      [(set GR32:$dst, EFLAGS,
    229. 

  229.                            (X86smul_flag GR32:$src1, i32immSExt8:$src2))],
    230. 

  230.                            IIC_IMUL32_RRI>;
    231. 

  231. def IMUL64rri32 : RIi32<0x69, MRMSrcReg,                    // GR64 = GR64*I32
    232. 

  232.                         (outs GR64:$dst), (ins GR64:$src1, i64i32imm:$src2),
    233. 

  233.                         "imul{q}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    234. 

  234.                        [(set GR64:$dst, EFLAGS,
    235. 

  235.                              (X86smul_flag GR64:$src1, i64immSExt32:$src2))],
    236. 

  236.                              IIC_IMUL64_RRI>;
    237. 

  237. def IMUL64rri8 : RIi8<0x6B, MRMSrcReg,                      // GR64 = GR64*I8
    238. 

  238.                       (outs GR64:$dst), (ins GR64:$src1, i64i8imm:$src2),
    239. 

  239.                       "imul{q}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    240. 

  240.                       [(set GR64:$dst, EFLAGS,
    241. 

  241.                             (X86smul_flag GR64:$src1, i64immSExt8:$src2))],
    242. 

  242.                             IIC_IMUL64_RRI>;
    243. 

  243. } // SchedRW
    244. 

  244. 

  245. // Memory-Integer Signed Integer Multiply
    246. 

  246. let SchedRW = [WriteIMulLd] in {
    247. 

  247. def IMUL16rmi  : Ii16<0x69, MRMSrcMem,                     // GR16 = [mem16]*I16
    248. 

  248.                       (outs GR16:$dst), (ins i16mem:$src1, i16imm:$src2),
    249. 

  249.                       "imul{w}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    250. 

  250.                       [(set GR16:$dst, EFLAGS,
    251. 

  251.                             (X86smul_flag (load addr:$src1), imm:$src2))],
    252. 

  252.                             IIC_IMUL16_RMI>,
    253. 

  253.                  OpSize;
    254. 

  254. def IMUL16rmi8 : Ii8<0x6B, MRMSrcMem,                       // GR16 = [mem16]*I8
    255. 

  255.                      (outs GR16:$dst), (ins i16mem:$src1, i16i8imm :$src2),
    256. 

  256.                      "imul{w}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    257. 

  257.                      [(set GR16:$dst, EFLAGS,
    258. 

  258.                            (X86smul_flag (load addr:$src1),
    259. 

  259.                                          i16immSExt8:$src2))], IIC_IMUL16_RMI>,
    260. 

  260.                                          OpSize;
    261. 

  261. def IMUL32rmi  : Ii32<0x69, MRMSrcMem,                     // GR32 = [mem32]*I32
    262. 

  262.                       (outs GR32:$dst), (ins i32mem:$src1, i32imm:$src2),
    263. 

  263.                       "imul{l}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    264. 

  264.                       [(set GR32:$dst, EFLAGS,
    265. 

  265.                             (X86smul_flag (load addr:$src1), imm:$src2))],
    266. 

  266.                             IIC_IMUL32_RMI>;
    267. 

  267. def IMUL32rmi8 : Ii8<0x6B, MRMSrcMem,                       // GR32 = [mem32]*I8
    268. 

  268.                      (outs GR32:$dst), (ins i32mem:$src1, i32i8imm: $src2),
    269. 

  269.                      "imul{l}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    270. 

  270.                      [(set GR32:$dst, EFLAGS,
    271. 

  271.                            (X86smul_flag (load addr:$src1),
    272. 

  272.                                          i32immSExt8:$src2))],
    273. 

  273.                                          IIC_IMUL32_RMI>;
    274. 

  274. def IMUL64rmi32 : RIi32<0x69, MRMSrcMem,                   // GR64 = [mem64]*I32
    275. 

  275.                         (outs GR64:$dst), (ins i64mem:$src1, i64i32imm:$src2),
    276. 

  276.                         "imul{q}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    277. 

  277.                         [(set GR64:$dst, EFLAGS,
    278. 

  278.                               (X86smul_flag (load addr:$src1),
    279. 

  279.                                             i64immSExt32:$src2))],
    280. 

  280.                                             IIC_IMUL64_RMI>;
    281. 

  281. def IMUL64rmi8 : RIi8<0x6B, MRMSrcMem,                      // GR64 = [mem64]*I8
    282. 

  282.                       (outs GR64:$dst), (ins i64mem:$src1, i64i8imm: $src2),
    283. 

  283.                       "imul{q}\t{$src2, $src1, $dst|$dst, $src1, $src2}",
    284. 

  284.                       [(set GR64:$dst, EFLAGS,
    285. 

  285.                             (X86smul_flag (load addr:$src1),
    286. 

  286.                                           i64immSExt8:$src2))],
    287. 

  287.                                           IIC_IMUL64_RMI>;
    288. 

  288. } // SchedRW
    289. 

  289. } // Defs = [EFLAGS]
    290. 

  290. 

  291. 

  292. 

  293. 

  294. // unsigned division/remainder
    295. 

  295. let hasSideEffects = 1 in { // so that we don't speculatively execute
    296. 

  296. let SchedRW = [WriteIDiv] in {
    297. 

  297. let Defs = [AL,AH,EFLAGS], Uses = [AX] in
    298. 

  298. def DIV8r  : I<0xF6, MRM6r, (outs),  (ins GR8:$src),    // AX/r8 = AL,AH
    299. 

  299.                "div{b}\t$src", [], IIC_DIV8_REG>;
    300. 

  300. let Defs = [AX,DX,EFLAGS], Uses = [AX,DX] in
    301. 

  301. def DIV16r : I<0xF7, MRM6r, (outs),  (ins GR16:$src),   // DX:AX/r16 = AX,DX
    302. 

  302.                "div{w}\t$src", [], IIC_DIV16>, OpSize;
    303. 

  303. let Defs = [EAX,EDX,EFLAGS], Uses = [EAX,EDX] in
    304. 

  304. def DIV32r : I<0xF7, MRM6r, (outs),  (ins GR32:$src),   // EDX:EAX/r32 = EAX,EDX
    305. 

  305.                "div{l}\t$src", [], IIC_DIV32>;
    306. 

  306. // RDX:RAX/r64 = RAX,RDX
    307. 

  307. let Defs = [RAX,RDX,EFLAGS], Uses = [RAX,RDX] in
    308. 

  308. def DIV64r : RI<0xF7, MRM6r, (outs), (ins GR64:$src),
    309. 

  309.                 "div{q}\t$src", [], IIC_DIV64>;
    310. 

  310. } // SchedRW
    311. 

  311. 

  312. let mayLoad = 1 in {
    313. 

  313. let Defs = [AL,AH,EFLAGS], Uses = [AX] in
    314. 

  314. def DIV8m  : I<0xF6, MRM6m, (outs), (ins i8mem:$src),   // AX/[mem8] = AL,AH
    315. 

  315.                "div{b}\t$src", [], IIC_DIV8_MEM>,
    316. 

  316.              SchedLoadReg<WriteIDivLd>;
    317. 

  317. let Defs = [AX,DX,EFLAGS], Uses = [AX,DX] in
    318. 

  318. def DIV16m : I<0xF7, MRM6m, (outs), (ins i16mem:$src),  // DX:AX/[mem16] = AX,DX
    319. 

  319.                "div{w}\t$src", [], IIC_DIV16>, OpSize,
    320. 

  320.              SchedLoadReg<WriteIDivLd>;
    321. 

  321. let Defs = [EAX,EDX,EFLAGS], Uses = [EAX,EDX] in    // EDX:EAX/[mem32] = EAX,EDX
    322. 

  322. def DIV32m : I<0xF7, MRM6m, (outs), (ins i32mem:$src),
    323. 

  323.                "div{l}\t$src", [], IIC_DIV32>,
    324. 

  324.              SchedLoadReg<WriteIDivLd>;
    325. 

  325. // RDX:RAX/[mem64] = RAX,RDX
    326. 

  326. let Defs = [RAX,RDX,EFLAGS], Uses = [RAX,RDX] in
    327. 

  327. def DIV64m : RI<0xF7, MRM6m, (outs), (ins i64mem:$src),
    328. 

  328.                 "div{q}\t$src", [], IIC_DIV64>,
    329. 

  329.              SchedLoadReg<WriteIDivLd>;
    330. 

  330. }
    331. 

  331. 

  332. // Signed division/remainder.
    333. 

  333. let SchedRW = [WriteIDiv] in {
    334. 

  334. let Defs = [AL,AH,EFLAGS], Uses = [AX] in
    335. 

  335. def IDIV8r : I<0xF6, MRM7r, (outs),  (ins GR8:$src),    // AX/r8 = AL,AH
    336. 

  336.                "idiv{b}\t$src", [], IIC_IDIV8>;
    337. 

  337. let Defs = [AX,DX,EFLAGS], Uses = [AX,DX] in
    338. 

  338. def IDIV16r: I<0xF7, MRM7r, (outs),  (ins GR16:$src),   // DX:AX/r16 = AX,DX
    339. 

  339.                "idiv{w}\t$src", [], IIC_IDIV16>, OpSize;
    340. 

  340. let Defs = [EAX,EDX,EFLAGS], Uses = [EAX,EDX] in
    341. 

  341. def IDIV32r: I<0xF7, MRM7r, (outs),  (ins GR32:$src),   // EDX:EAX/r32 = EAX,EDX
    342. 

  342.                "idiv{l}\t$src", [], IIC_IDIV32>;
    343. 

  343. // RDX:RAX/r64 = RAX,RDX
    344. 

  344. let Defs = [RAX,RDX,EFLAGS], Uses = [RAX,RDX] in
    345. 

  345. def IDIV64r: RI<0xF7, MRM7r, (outs), (ins GR64:$src),
    346. 

  346.                 "idiv{q}\t$src", [], IIC_IDIV64>;
    347. 

  347. } // SchedRW
    348. 

  348. 

  349. let mayLoad = 1 in {
    350. 

  350. let Defs = [AL,AH,EFLAGS], Uses = [AX] in
    351. 

  351. def IDIV8m : I<0xF6, MRM7m, (outs), (ins i8mem:$src),   // AX/[mem8] = AL,AH
    352. 

  352.                "idiv{b}\t$src", [], IIC_IDIV8>,
    353. 

  353.              SchedLoadReg<WriteIDivLd>;
    354. 

  354. let Defs = [AX,DX,EFLAGS], Uses = [AX,DX] in
    355. 

  355. def IDIV16m: I<0xF7, MRM7m, (outs), (ins i16mem:$src),  // DX:AX/[mem16] = AX,DX
    356. 

  356.                "idiv{w}\t$src", [], IIC_IDIV16>, OpSize,
    357. 

  357.              SchedLoadReg<WriteIDivLd>;
    358. 

  358. let Defs = [EAX,EDX,EFLAGS], Uses = [EAX,EDX] in    // EDX:EAX/[mem32] = EAX,EDX
    359. 

  359. def IDIV32m: I<0xF7, MRM7m, (outs), (ins i32mem:$src),
    360. 

  360.                "idiv{l}\t$src", [], IIC_IDIV32>,
    361. 

  361.              SchedLoadReg<WriteIDivLd>;
    362. 

  362. let Defs = [RAX,RDX,EFLAGS], Uses = [RAX,RDX] in // RDX:RAX/[mem64] = RAX,RDX
    363. 

  363. def IDIV64m: RI<0xF7, MRM7m, (outs), (ins i64mem:$src),
    364. 

  364.                 "idiv{q}\t$src", [], IIC_IDIV64>,
    365. 

  365.              SchedLoadReg<WriteIDivLd>;
    366. 

  366. }
    367. 

  367. } // hasSideEffects = 0
    368. 

  368. 

  369. //===----------------------------------------------------------------------===//
    370. 

  370. //  Two address Instructions.
    371. 

  371. //
    372. 

  372. 

  373. // unary instructions
    374. 

  374. let CodeSize = 2 in {
    375. 

  375. let Defs = [EFLAGS] in {
    376. 

  376. let Constraints = "$src1 = $dst", SchedRW = [WriteALU] in {
    377. 

  377. def NEG8r  : I<0xF6, MRM3r, (outs GR8 :$dst), (ins GR8 :$src1),
    378. 

  378.                "neg{b}\t$dst",
    379. 

  379.                [(set GR8:$dst, (ineg GR8:$src1)),
    380. 

  380.                 (implicit EFLAGS)], IIC_UNARY_REG>;
    381. 

  381. def NEG16r : I<0xF7, MRM3r, (outs GR16:$dst), (ins GR16:$src1),
    382. 

  382.                "neg{w}\t$dst",
    383. 

  383.                [(set GR16:$dst, (ineg GR16:$src1)),
    384. 

  384.                 (implicit EFLAGS)], IIC_UNARY_REG>, OpSize;
    385. 

  385. def NEG32r : I<0xF7, MRM3r, (outs GR32:$dst), (ins GR32:$src1),
    386. 

  386.                "neg{l}\t$dst",
    387. 

  387.                [(set GR32:$dst, (ineg GR32:$src1)),
    388. 

  388.                 (implicit EFLAGS)], IIC_UNARY_REG>;
    389. 

  389. def NEG64r : RI<0xF7, MRM3r, (outs GR64:$dst), (ins GR64:$src1), "neg{q}\t$dst",
    390. 

  390.                 [(set GR64:$dst, (ineg GR64:$src1)),
    391. 

  391.                  (implicit EFLAGS)], IIC_UNARY_REG>;
    392. 

  392. } // Constraints = "$src1 = $dst", SchedRW
    393. 

  393. 

  394. // Read-modify-write negate.
    395. 

  395. let SchedRW = [WriteALULd, WriteRMW] in {
    396. 

  396. def NEG8m  : I<0xF6, MRM3m, (outs), (ins i8mem :$dst),
    397. 

  397.                "neg{b}\t$dst",
    398. 

  398.                [(store (ineg (loadi8 addr:$dst)), addr:$dst),
    399. 

  399.                 (implicit EFLAGS)], IIC_UNARY_MEM>;
    400. 

  400. def NEG16m : I<0xF7, MRM3m, (outs), (ins i16mem:$dst),
    401. 

  401.                "neg{w}\t$dst",
    402. 

  402.                [(store (ineg (loadi16 addr:$dst)), addr:$dst),
    403. 

  403.                 (implicit EFLAGS)], IIC_UNARY_MEM>, OpSize;
    404. 

  404. def NEG32m : I<0xF7, MRM3m, (outs), (ins i32mem:$dst),
    405. 

  405.                "neg{l}\t$dst",
    406. 

  406.                [(store (ineg (loadi32 addr:$dst)), addr:$dst),
    407. 

  407.                 (implicit EFLAGS)], IIC_UNARY_MEM>;
    408. 

  408. def NEG64m : RI<0xF7, MRM3m, (outs), (ins i64mem:$dst), "neg{q}\t$dst",
    409. 

  409.                 [(store (ineg (loadi64 addr:$dst)), addr:$dst),
    410. 

  410.                  (implicit EFLAGS)], IIC_UNARY_MEM>;
    411. 

  411. } // SchedRW
    412. 

  412. } // Defs = [EFLAGS]
    413. 

  413. 

  414. 

  415. // Note: NOT does not set EFLAGS!
    416. 

  416. 

  417. let Constraints = "$src1 = $dst", SchedRW = [WriteALU] in {
    418. 

  418. // Match xor -1 to not. Favors these over a move imm + xor to save code size.
    419. 

  419. let AddedComplexity = 15 in {
    420. 

  420. def NOT8r  : I<0xF6, MRM2r, (outs GR8 :$dst), (ins GR8 :$src1),
    421. 

  421.                "not{b}\t$dst",
    422. 

  422.                [(set GR8:$dst, (not GR8:$src1))], IIC_UNARY_REG>;
    423. 

  423. def NOT16r : I<0xF7, MRM2r, (outs GR16:$dst), (ins GR16:$src1),
    424. 

  424.                "not{w}\t$dst",
    425. 

  425.                [(set GR16:$dst, (not GR16:$src1))], IIC_UNARY_REG>, OpSize;
    426. 

  426. def NOT32r : I<0xF7, MRM2r, (outs GR32:$dst), (ins GR32:$src1),
    427. 

  427.                "not{l}\t$dst",
    428. 

  428.                [(set GR32:$dst, (not GR32:$src1))], IIC_UNARY_REG>;
    429. 

  429. def NOT64r : RI<0xF7, MRM2r, (outs GR64:$dst), (ins GR64:$src1), "not{q}\t$dst",
    430. 

  430.                 [(set GR64:$dst, (not GR64:$src1))], IIC_UNARY_REG>;
    431. 

  431. }
    432. 

  432. } // Constraints = "$src1 = $dst", SchedRW
    433. 

  433. 

  434. let SchedRW = [WriteALULd, WriteRMW] in {
    435. 

  435. def NOT8m  : I<0xF6, MRM2m, (outs), (ins i8mem :$dst),
    436. 

  436.                "not{b}\t$dst",
    437. 

  437.                [(store (not (loadi8 addr:$dst)), addr:$dst)], IIC_UNARY_MEM>;
    438. 

  438. def NOT16m : I<0xF7, MRM2m, (outs), (ins i16mem:$dst),
    439. 

  439.                "not{w}\t$dst",
    440. 

  440.                [(store (not (loadi16 addr:$dst)), addr:$dst)], IIC_UNARY_MEM>,
    441. 

  441.                OpSize;
    442. 

  442. def NOT32m : I<0xF7, MRM2m, (outs), (ins i32mem:$dst),
    443. 

  443.                "not{l}\t$dst",
    444. 

  444.                [(store (not (loadi32 addr:$dst)), addr:$dst)], IIC_UNARY_MEM>;
    445. 

  445. def NOT64m : RI<0xF7, MRM2m, (outs), (ins i64mem:$dst), "not{q}\t$dst",
    446. 

  446.                 [(store (not (loadi64 addr:$dst)), addr:$dst)], IIC_UNARY_MEM>;
    447. 

  447. } // SchedRW
    448. 

  448. } // CodeSize
    449. 

  449. 

  450. // TODO: inc/dec is slow for P4, but fast for Pentium-M.
    451. 

  451. let Defs = [EFLAGS] in {
    452. 

  452. let Constraints = "$src1 = $dst", SchedRW = [WriteALU] in {
    453. 

  453. let CodeSize = 2 in
    454. 

  454. def INC8r  : I<0xFE, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
    455. 

  455.                "inc{b}\t$dst",
    456. 

  456.                [(set GR8:$dst, EFLAGS, (X86inc_flag GR8:$src1))],
    457. 

  457.                IIC_UNARY_REG>;
    458. 

  458. 

  459. let isConvertibleToThreeAddress = 1, CodeSize = 1 in {  // Can xform into LEA.
    460. 

  460. def INC16r : I<0x40, AddRegFrm, (outs GR16:$dst), (ins GR16:$src1),
    461. 

  461.                "inc{w}\t$dst",
    462. 

  462.                [(set GR16:$dst, EFLAGS, (X86inc_flag GR16:$src1))], IIC_UNARY_REG>,
    463. 

  463.              OpSize, Requires<[In32BitMode]>;
    464. 

  464. def INC32r : I<0x40, AddRegFrm, (outs GR32:$dst), (ins GR32:$src1),
    465. 

  465.                "inc{l}\t$dst",
    466. 

  466.                [(set GR32:$dst, EFLAGS, (X86inc_flag GR32:$src1))],
    467. 

  467.                IIC_UNARY_REG>,
    468. 

  468.              Requires<[In32BitMode]>;
    469. 

  469. def INC64r : RI<0xFF, MRM0r, (outs GR64:$dst), (ins GR64:$src1), "inc{q}\t$dst",
    470. 

  470.                 [(set GR64:$dst, EFLAGS, (X86inc_flag GR64:$src1))],
    471. 

  471.                 IIC_UNARY_REG>;
    472. 

  472. } // isConvertibleToThreeAddress = 1, CodeSize = 1
    473. 

  473. 

  474. 

  475. // In 64-bit mode, single byte INC and DEC cannot be encoded.
    476. 

  476. let isConvertibleToThreeAddress = 1, CodeSize = 2 in {
    477. 

  477. // Can transform into LEA.
    478. 

  478. def INC64_16r : I<0xFF, MRM0r, (outs GR16:$dst), (ins GR16:$src1),
    479. 

  479.                   "inc{w}\t$dst",
    480. 

  480.                   [(set GR16:$dst, EFLAGS, (X86inc_flag GR16:$src1))],
    481. 

  481.                   IIC_UNARY_REG>,
    482. 

  482.                 OpSize, Requires<[In64BitMode]>;
    483. 

  483. def INC64_32r : I<0xFF, MRM0r, (outs GR32:$dst), (ins GR32:$src1),
    484. 

  484.                   "inc{l}\t$dst",
    485. 

  485.                   [(set GR32:$dst, EFLAGS, (X86inc_flag GR32:$src1))],
    486. 

  486.                   IIC_UNARY_REG>,
    487. 

  487.                 Requires<[In64BitMode]>;
    488. 

  488. def DEC64_16r : I<0xFF, MRM1r, (outs GR16:$dst), (ins GR16:$src1),
    489. 

  489.                   "dec{w}\t$dst",
    490. 

  490.                   [(set GR16:$dst, EFLAGS, (X86dec_flag GR16:$src1))],
    491. 

  491.                   IIC_UNARY_REG>,
    492. 

  492.                 OpSize, Requires<[In64BitMode]>;
    493. 

  493. def DEC64_32r : I<0xFF, MRM1r, (outs GR32:$dst), (ins GR32:$src1),
    494. 

  494.                   "dec{l}\t$dst",
    495. 

  495.                   [(set GR32:$dst, EFLAGS, (X86dec_flag GR32:$src1))],
    496. 

  496.                   IIC_UNARY_REG>,
    497. 

  497.                 Requires<[In64BitMode]>;
    498. 

  498. } // isConvertibleToThreeAddress = 1, CodeSize = 2
    499. 

  499. 

  500. let isCodeGenOnly = 1, CodeSize = 2 in {
    501. 

  501. def INC32_16r : I<0xFF, MRM0r, (outs GR16:$dst), (ins GR16:$src1),
    502. 

  502.                   "inc{w}\t$dst", [], IIC_UNARY_REG>,
    503. 

  503.                 OpSize, Requires<[In32BitMode]>;
    504. 

  504. def INC32_32r : I<0xFF, MRM0r, (outs GR32:$dst), (ins GR32:$src1),
    505. 

  505.                   "inc{l}\t$dst", [], IIC_UNARY_REG>,
    506. 

  506.                 Requires<[In32BitMode]>;
    507. 

  507. def DEC32_16r : I<0xFF, MRM1r, (outs GR16:$dst), (ins GR16:$src1),
    508. 

  508.                   "dec{w}\t$dst", [], IIC_UNARY_REG>,
    509. 

  509.                 OpSize, Requires<[In32BitMode]>;
    510. 

  510. def DEC32_32r : I<0xFF, MRM1r, (outs GR32:$dst), (ins GR32:$src1),
    511. 

  511.                   "dec{l}\t$dst", [], IIC_UNARY_REG>,
    512. 

  512.                 Requires<[In32BitMode]>;
    513. 

  513. } // isCodeGenOnly = 1, CodeSize = 2
    514. 

  514. 

  515. } // Constraints = "$src1 = $dst", SchedRW
    516. 

  516. 

  517. let CodeSize = 2, SchedRW = [WriteALULd, WriteRMW] in {
    518. 

  518.   def INC8m  : I<0xFE, MRM0m, (outs), (ins i8mem :$dst), "inc{b}\t$dst",
    519. 

  519.                [(store (add (loadi8 addr:$dst), 1), addr:$dst),
    520. 

  520.                 (implicit EFLAGS)], IIC_UNARY_MEM>;
    521. 

  521.   def INC16m : I<0xFF, MRM0m, (outs), (ins i16mem:$dst), "inc{w}\t$dst",
    522. 

  522.                [(store (add (loadi16 addr:$dst), 1), addr:$dst),
    523. 

  523.                 (implicit EFLAGS)], IIC_UNARY_MEM>,
    524. 

  524.                OpSize, Requires<[In32BitMode]>;
    525. 

  525.   def INC32m : I<0xFF, MRM0m, (outs), (ins i32mem:$dst), "inc{l}\t$dst",
    526. 

  526.                [(store (add (loadi32 addr:$dst), 1), addr:$dst),
    527. 

  527.                 (implicit EFLAGS)], IIC_UNARY_MEM>,
    528. 

  528.                Requires<[In32BitMode]>;
    529. 

  529.   def INC64m : RI<0xFF, MRM0m, (outs), (ins i64mem:$dst), "inc{q}\t$dst",
    530. 

  530.                   [(store (add (loadi64 addr:$dst), 1), addr:$dst),
    531. 

  531.                    (implicit EFLAGS)], IIC_UNARY_MEM>;
    532. 

  532. 

  533. // These are duplicates of their 32-bit counterparts. Only needed so X86 knows
    534. 

  534. // how to unfold them.
    535. 

  535. // FIXME: What is this for??
    536. 

  536. def INC64_16m : I<0xFF, MRM0m, (outs), (ins i16mem:$dst), "inc{w}\t$dst",
    537. 

  537.                   [(store (add (loadi16 addr:$dst), 1), addr:$dst),
    538. 

  538.                     (implicit EFLAGS)], IIC_UNARY_MEM>,
    539. 

  539.                 OpSize, Requires<[In64BitMode]>;
    540. 

  540. def INC64_32m : I<0xFF, MRM0m, (outs), (ins i32mem:$dst), "inc{l}\t$dst",
    541. 

  541.                   [(store (add (loadi32 addr:$dst), 1), addr:$dst),
    542. 

  542.                     (implicit EFLAGS)], IIC_UNARY_MEM>,
    543. 

  543.                 Requires<[In64BitMode]>;
    544. 

  544. def DEC64_16m : I<0xFF, MRM1m, (outs), (ins i16mem:$dst), "dec{w}\t$dst",
    545. 

  545.                   [(store (add (loadi16 addr:$dst), -1), addr:$dst),
    546. 

  546.                     (implicit EFLAGS)], IIC_UNARY_MEM>,
    547. 

  547.                 OpSize, Requires<[In64BitMode]>;
    548. 

  548. def DEC64_32m : I<0xFF, MRM1m, (outs), (ins i32mem:$dst), "dec{l}\t$dst",
    549. 

  549.                   [(store (add (loadi32 addr:$dst), -1), addr:$dst),
    550. 

  550.                     (implicit EFLAGS)], IIC_UNARY_MEM>,
    551. 

  551.                 Requires<[In64BitMode]>;
    552. 

  552. } // CodeSize = 2, SchedRW
    553. 

  553. 

  554. let Constraints = "$src1 = $dst", SchedRW = [WriteALU] in {
    555. 

  555. let CodeSize = 2 in
    556. 

  556. def DEC8r  : I<0xFE, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
    557. 

  557.                "dec{b}\t$dst",
    558. 

  558.                [(set GR8:$dst, EFLAGS, (X86dec_flag GR8:$src1))],
    559. 

  559.                IIC_UNARY_REG>;
    560. 

  560. let isConvertibleToThreeAddress = 1, CodeSize = 1 in {   // Can xform into LEA.
    561. 

  561. def DEC16r : I<0x48, AddRegFrm, (outs GR16:$dst), (ins GR16:$src1),
    562. 

  562.                "dec{w}\t$dst",
    563. 

  563.                [(set GR16:$dst, EFLAGS, (X86dec_flag GR16:$src1))],
    564. 

  564.                IIC_UNARY_REG>,
    565. 

  565.              OpSize, Requires<[In32BitMode]>;
    566. 

  566. def DEC32r : I<0x48, AddRegFrm, (outs GR32:$dst), (ins GR32:$src1),
    567. 

  567.                "dec{l}\t$dst",
    568. 

  568.                [(set GR32:$dst, EFLAGS, (X86dec_flag GR32:$src1))],
    569. 

  569.                IIC_UNARY_REG>,
    570. 

  570.              Requires<[In32BitMode]>;
    571. 

  571. def DEC64r : RI<0xFF, MRM1r, (outs GR64:$dst), (ins GR64:$src1), "dec{q}\t$dst",
    572. 

  572.                 [(set GR64:$dst, EFLAGS, (X86dec_flag GR64:$src1))],
    573. 

  573.                 IIC_UNARY_REG>;
    574. 

  574. } // CodeSize = 2
    575. 

  575. } // Constraints = "$src1 = $dst", SchedRW
    576. 

  576. 

  577. 

  578. let CodeSize = 2, SchedRW = [WriteALULd, WriteRMW] in {
    579. 

  579.   def DEC8m  : I<0xFE, MRM1m, (outs), (ins i8mem :$dst), "dec{b}\t$dst",
    580. 

  580.                [(store (add (loadi8 addr:$dst), -1), addr:$dst),
    581. 

  581.                 (implicit EFLAGS)], IIC_UNARY_MEM>;
    582. 

  582.   def DEC16m : I<0xFF, MRM1m, (outs), (ins i16mem:$dst), "dec{w}\t$dst",
    583. 

  583.                [(store (add (loadi16 addr:$dst), -1), addr:$dst),
    584. 

  584.                 (implicit EFLAGS)], IIC_UNARY_MEM>,
    585. 

  585.                OpSize, Requires<[In32BitMode]>;
    586. 

  586.   def DEC32m : I<0xFF, MRM1m, (outs), (ins i32mem:$dst), "dec{l}\t$dst",
    587. 

  587.                [(store (add (loadi32 addr:$dst), -1), addr:$dst),
    588. 

  588.                 (implicit EFLAGS)], IIC_UNARY_MEM>,
    589. 

  589.                Requires<[In32BitMode]>;
    590. 

  590.   def DEC64m : RI<0xFF, MRM1m, (outs), (ins i64mem:$dst), "dec{q}\t$dst",
    591. 

  591.                   [(store (add (loadi64 addr:$dst), -1), addr:$dst),
    592. 

  592.                    (implicit EFLAGS)], IIC_UNARY_MEM>;
    593. 

  593. } // CodeSize = 2, SchedRW
    594. 

  594. } // Defs = [EFLAGS]
    595. 

  595. 

  596. /// X86TypeInfo - This is a bunch of information that describes relevant X86
    597. 

  597. /// information about value types.  For example, it can tell you what the
    598. 

  598. /// register class and preferred load to use.
    599. 

  599. class X86TypeInfo<ValueType vt, string instrsuffix, RegisterClass regclass,
    600. 

  600.                   PatFrag loadnode, X86MemOperand memoperand, ImmType immkind,
    601. 

  601.                   Operand immoperand, SDPatternOperator immoperator,
    602. 

  602.                   Operand imm8operand, SDPatternOperator imm8operator,
    603. 

  603.                   bit hasOddOpcode, bit hasOpSizePrefix, bit hasREX_WPrefix> {
    604. 

  604.   /// VT - This is the value type itself.
    605. 

  605.   ValueType VT = vt;
    606. 

  606. 

  607.   /// InstrSuffix - This is the suffix used on instructions with this type.  For
    608. 

  608.   /// example, i8 -> "b", i16 -> "w", i32 -> "l", i64 -> "q".
    609. 

  609.   string InstrSuffix = instrsuffix;
    610. 

  610. 

  611.   /// RegClass - This is the register class associated with this type.  For
    612. 

  612.   /// example, i8 -> GR8, i16 -> GR16, i32 -> GR32, i64 -> GR64.
    613. 

  613.   RegisterClass RegClass = regclass;
    614. 

  614. 

  615.   /// LoadNode - This is the load node associated with this type.  For
    616. 

  616.   /// example, i8 -> loadi8, i16 -> loadi16, i32 -> loadi32, i64 -> loadi64.
    617. 

  617.   PatFrag LoadNode = loadnode;
    618. 

  618. 

  619.   /// MemOperand - This is the memory operand associated with this type.  For
    620. 

  620.   /// example, i8 -> i8mem, i16 -> i16mem, i32 -> i32mem, i64 -> i64mem.
    621. 

  621.   X86MemOperand MemOperand = memoperand;
    622. 

  622. 

  623.   /// ImmEncoding - This is the encoding of an immediate of this type.  For
    624. 

  624.   /// example, i8 -> Imm8, i16 -> Imm16, i32 -> Imm32.  Note that i64 -> Imm32
    625. 

  625.   /// since the immediate fields of i64 instructions is a 32-bit sign extended
    626. 

  626.   /// value.
    627. 

  627.   ImmType ImmEncoding = immkind;
    628. 

  628. 

  629.   /// ImmOperand - This is the operand kind of an immediate of this type.  For
    630. 

  630.   /// example, i8 -> i8imm, i16 -> i16imm, i32 -> i32imm.  Note that i64 ->
    631. 

  631.   /// i64i32imm since the immediate fields of i64 instructions is a 32-bit sign
    632. 

  632.   /// extended value.
    633. 

  633.   Operand ImmOperand = immoperand;
    634. 

  634. 

  635.   /// ImmOperator - This is the operator that should be used to match an
    636. 

  636.   /// immediate of this kind in a pattern (e.g. imm, or i64immSExt32).
    637. 

  637.   SDPatternOperator ImmOperator = immoperator;
    638. 

  638. 

  639.   /// Imm8Operand - This is the operand kind to use for an imm8 of this type.
    640. 

  640.   /// For example, i8 -> <invalid>, i16 -> i16i8imm, i32 -> i32i8imm.  This is
    641. 

  641.   /// only used for instructions that have a sign-extended imm8 field form.
    642. 

  642.   Operand Imm8Operand = imm8operand;
    643. 

  643. 

  644.   /// Imm8Operator - This is the operator that should be used to match an 8-bit
    645. 

  645.   /// sign extended immediate of this kind in a pattern (e.g. imm16immSExt8).
    646. 

  646.   SDPatternOperator Imm8Operator = imm8operator;
    647. 

  647. 

  648.   /// HasOddOpcode - This bit is true if the instruction should have an odd (as
    649. 

  649.   /// opposed to even) opcode.  Operations on i8 are usually even, operations on
    650. 

  650.   /// other datatypes are odd.
    651. 

  651.   bit HasOddOpcode = hasOddOpcode;
    652. 

  652. 

  653.   /// HasOpSizePrefix - This bit is set to true if the instruction should have
    654. 

  654.   /// the 0x66 operand size prefix.  This is set for i16 types.
    655. 

  655.   bit HasOpSizePrefix = hasOpSizePrefix;
    656. 

  656. 

  657.   /// HasREX_WPrefix - This bit is set to true if the instruction should have
    658. 

  658.   /// the 0x40 REX prefix.  This is set for i64 types.
    659. 

  659.   bit HasREX_WPrefix = hasREX_WPrefix;
    660. 

  660. }
    661. 

  661. 

  662. def invalid_node : SDNode<"<<invalid_node>>", SDTIntLeaf,[],"<<invalid_node>>">;
    663. 

  663. 

  664. 

  665. def Xi8  : X86TypeInfo<i8 , "b", GR8 , loadi8 , i8mem ,
    666. 

  666.                        Imm8 , i8imm ,    imm,          i8imm   , invalid_node,
    667. 

  667.                        0, 0, 0>;
    668. 

  668. def Xi16 : X86TypeInfo<i16, "w", GR16, loadi16, i16mem,
    669. 

  669.                        Imm16, i16imm,    imm,          i16i8imm, i16immSExt8,
    670. 

  670.                        1, 1, 0>;
    671. 

  671. def Xi32 : X86TypeInfo<i32, "l", GR32, loadi32, i32mem,
    672. 

  672.                        Imm32, i32imm,    imm,          i32i8imm, i32immSExt8,
    673. 

  673.                        1, 0, 0>;
    674. 

  674. def Xi64 : X86TypeInfo<i64, "q", GR64, loadi64, i64mem,
    675. 

  675.                        Imm32, i64i32imm, i64immSExt32, i64i8imm, i64immSExt8,
    676. 

  676.                        1, 0, 1>;
    677. 

  677. 

  678. /// ITy - This instruction base class takes the type info for the instruction.
    679. 

  679. /// Using this, it:
    680. 

  680. /// 1. Concatenates together the instruction mnemonic with the appropriate
    681. 

  681. ///    suffix letter, a tab, and the arguments.
    682. 

  682. /// 2. Infers whether the instruction should have a 0x66 prefix byte.
    683. 

  683. /// 3. Infers whether the instruction should have a 0x40 REX_W prefix.
    684. 

  684. /// 4. Infers whether the low bit of the opcode should be 0 (for i8 operations)
    685. 

  685. ///    or 1 (for i16,i32,i64 operations).
    686. 

  686. class ITy<bits<8> opcode, Format f, X86TypeInfo typeinfo, dag outs, dag ins,
    687. 

  687.           string mnemonic, string args, list<dag> pattern,
    688. 

  688.           InstrItinClass itin = IIC_BIN_NONMEM>
    689. 

  689.   : I<{opcode{7}, opcode{6}, opcode{5}, opcode{4},
    690. 

  690.        opcode{3}, opcode{2}, opcode{1}, typeinfo.HasOddOpcode },
    691. 

  691.       f, outs, ins,
    692. 

  692.       !strconcat(mnemonic, "{", typeinfo.InstrSuffix, "}\t", args), pattern,
    693. 

  693.       itin> {
    694. 

  694. 

  695.   // Infer instruction prefixes from type info.
    696. 

  696.   let hasOpSizePrefix = typeinfo.HasOpSizePrefix;
    697. 

  697.   let hasREX_WPrefix  = typeinfo.HasREX_WPrefix;
    698. 

  698. }
    699. 

  699. 

  700. // BinOpRR - Instructions like "add reg, reg, reg".
    701. 

  701. class BinOpRR<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    702. 

  702.               dag outlist, list<dag> pattern, InstrItinClass itin,
    703. 

  703.               Format f = MRMDestReg>
    704. 

  704.   : ITy<opcode, f, typeinfo, outlist,
    705. 

  705.         (ins typeinfo.RegClass:$src1, typeinfo.RegClass:$src2),
    706. 

  706.         mnemonic, "{$src2, $src1|$src1, $src2}", pattern, itin>,
    707. 

  707.     Sched<[WriteALU]>;
    708. 

  708. 

  709. // BinOpRR_R - Instructions like "add reg, reg, reg", where the pattern has
    710. 

  710. // just a regclass (no eflags) as a result.
    711. 

  711. class BinOpRR_R<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    712. 

  712.                 SDNode opnode>
    713. 

  713.   : BinOpRR<opcode, mnemonic, typeinfo, (outs typeinfo.RegClass:$dst),
    714. 

  714.             [(set typeinfo.RegClass:$dst,
    715. 

  715.                   (opnode typeinfo.RegClass:$src1, typeinfo.RegClass:$src2))],
    716. 

  716.                   IIC_BIN_NONMEM>;
    717. 

  717. 

  718. // BinOpRR_F - Instructions like "cmp reg, Reg", where the pattern has
    719. 

  719. // just a EFLAGS as a result.
    720. 

  720. class BinOpRR_F<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    721. 

  721.                 SDPatternOperator opnode, Format f = MRMDestReg>
    722. 

  722.   : BinOpRR<opcode, mnemonic, typeinfo, (outs),
    723. 

  723.             [(set EFLAGS,
    724. 

  724.                   (opnode typeinfo.RegClass:$src1, typeinfo.RegClass:$src2))],
    725. 

  725.             IIC_BIN_NONMEM, f>;
    726. 

  726. 

  727. // BinOpRR_RF - Instructions like "add reg, reg, reg", where the pattern has
    728. 

  728. // both a regclass and EFLAGS as a result.
    729. 

  729. class BinOpRR_RF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    730. 

  730.                  SDNode opnode>
    731. 

  731.   : BinOpRR<opcode, mnemonic, typeinfo, (outs typeinfo.RegClass:$dst),
    732. 

  732.             [(set typeinfo.RegClass:$dst, EFLAGS,
    733. 

  733.                   (opnode typeinfo.RegClass:$src1, typeinfo.RegClass:$src2))],
    734. 

  734.                   IIC_BIN_NONMEM>;
    735. 

  735. 

  736. // BinOpRR_RFF - Instructions like "adc reg, reg, reg", where the pattern has
    737. 

  737. // both a regclass and EFLAGS as a result, and has EFLAGS as input.
    738. 

  738. class BinOpRR_RFF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    739. 

  739.                   SDNode opnode>
    740. 

  740.   : BinOpRR<opcode, mnemonic, typeinfo, (outs typeinfo.RegClass:$dst),
    741. 

  741.             [(set typeinfo.RegClass:$dst, EFLAGS,
    742. 

  742.                   (opnode typeinfo.RegClass:$src1, typeinfo.RegClass:$src2,
    743. 

  743.                           EFLAGS))], IIC_BIN_CARRY_NONMEM>;
    744. 

  744. 

  745. // BinOpRR_Rev - Instructions like "add reg, reg, reg" (reversed encoding).
    746. 

  746. class BinOpRR_Rev<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    747. 

  747.                  InstrItinClass itin = IIC_BIN_NONMEM>
    748. 

  748.   : ITy<opcode, MRMSrcReg, typeinfo,
    749. 

  749.         (outs typeinfo.RegClass:$dst),
    750. 

  750.         (ins typeinfo.RegClass:$src1, typeinfo.RegClass:$src2),
    751. 

  751.         mnemonic, "{$src2, $dst|$dst, $src2}", [], itin>,
    752. 

  752.     Sched<[WriteALU]> {
    753. 

  753.   // The disassembler should know about this, but not the asmparser.
    754. 

  754.   let isCodeGenOnly = 1;
    755. 

  755.   let hasSideEffects = 0;
    756. 

  756. }
    757. 

  757. 

  758. // BinOpRR_RDD_Rev - Instructions like "adc reg, reg, reg" (reversed encoding).
    759. 

  759. class BinOpRR_RFF_Rev<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo>
    760. 

  760.   : BinOpRR_Rev<opcode, mnemonic, typeinfo, IIC_BIN_CARRY_NONMEM>;
    761. 

  761. 

  762. // BinOpRR_F_Rev - Instructions like "cmp reg, reg" (reversed encoding).
    763. 

  763. class BinOpRR_F_Rev<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo>
    764. 

  764.   : ITy<opcode, MRMSrcReg, typeinfo, (outs),
    765. 

  765.         (ins typeinfo.RegClass:$src1, typeinfo.RegClass:$src2),
    766. 

  766.         mnemonic, "{$src2, $src1|$src1, $src2}", [], IIC_BIN_NONMEM>,
    767. 

  767.     Sched<[WriteALU]> {
    768. 

  768.   // The disassembler should know about this, but not the asmparser.
    769. 

  769.   let isCodeGenOnly = 1;
    770. 

  770.   let hasSideEffects = 0;
    771. 

  771. }
    772. 

  772. 

  773. // BinOpRM - Instructions like "add reg, reg, [mem]".
    774. 

  774. class BinOpRM<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    775. 

  775.               dag outlist, list<dag> pattern,
    776. 

  776.               InstrItinClass itin = IIC_BIN_MEM>
    777. 

  777.   : ITy<opcode, MRMSrcMem, typeinfo, outlist,
    778. 

  778.         (ins typeinfo.RegClass:$src1, typeinfo.MemOperand:$src2),
    779. 

  779.         mnemonic, "{$src2, $src1|$src1, $src2}", pattern, itin>,
    780. 

  780.     Sched<[WriteALULd, ReadAfterLd]>;
    781. 

  781. 

  782. // BinOpRM_R - Instructions like "add reg, reg, [mem]".
    783. 

  783. class BinOpRM_R<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    784. 

  784.               SDNode opnode>
    785. 

  785.   : BinOpRM<opcode, mnemonic, typeinfo, (outs typeinfo.RegClass:$dst),
    786. 

  786.             [(set typeinfo.RegClass:$dst,
    787. 

  787.             (opnode typeinfo.RegClass:$src1, (typeinfo.LoadNode addr:$src2)))]>;
    788. 

  788. 

  789. // BinOpRM_F - Instructions like "cmp reg, [mem]".
    790. 

  790. class BinOpRM_F<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    791. 

  791.               SDPatternOperator opnode>
    792. 

  792.   : BinOpRM<opcode, mnemonic, typeinfo, (outs),
    793. 

  793.             [(set EFLAGS,
    794. 

  794.             (opnode typeinfo.RegClass:$src1, (typeinfo.LoadNode addr:$src2)))]>;
    795. 

  795. 

  796. // BinOpRM_RF - Instructions like "add reg, reg, [mem]".
    797. 

  797. class BinOpRM_RF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    798. 

  798.                  SDNode opnode>
    799. 

  799.   : BinOpRM<opcode, mnemonic, typeinfo, (outs typeinfo.RegClass:$dst),
    800. 

  800.             [(set typeinfo.RegClass:$dst, EFLAGS,
    801. 

  801.             (opnode typeinfo.RegClass:$src1, (typeinfo.LoadNode addr:$src2)))]>;
    802. 

  802. 

  803. // BinOpRM_RFF - Instructions like "adc reg, reg, [mem]".
    804. 

  804. class BinOpRM_RFF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    805. 

  805.                  SDNode opnode>
    806. 

  806.   : BinOpRM<opcode, mnemonic, typeinfo, (outs typeinfo.RegClass:$dst),
    807. 

  807.             [(set typeinfo.RegClass:$dst, EFLAGS,
    808. 

  808.             (opnode typeinfo.RegClass:$src1, (typeinfo.LoadNode addr:$src2),
    809. 

  809.                     EFLAGS))], IIC_BIN_CARRY_MEM>;
    810. 

  810. 

  811. // BinOpRI - Instructions like "add reg, reg, imm".
    812. 

  812. class BinOpRI<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    813. 

  813.               Format f, dag outlist, list<dag> pattern,
    814. 

  814.               InstrItinClass itin = IIC_BIN_NONMEM>
    815. 

  815.   : ITy<opcode, f, typeinfo, outlist,
    816. 

  816.         (ins typeinfo.RegClass:$src1, typeinfo.ImmOperand:$src2),
    817. 

  817.         mnemonic, "{$src2, $src1|$src1, $src2}", pattern, itin>,
    818. 

  818.     Sched<[WriteALU]> {
    819. 

  819.   let ImmT = typeinfo.ImmEncoding;
    820. 

  820. }
    821. 

  821. 

  822. // BinOpRI_R - Instructions like "add reg, reg, imm".
    823. 

  823. class BinOpRI_R<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    824. 

  824.                 SDNode opnode, Format f>
    825. 

  825.   : BinOpRI<opcode, mnemonic, typeinfo, f, (outs typeinfo.RegClass:$dst),
    826. 

  826.             [(set typeinfo.RegClass:$dst,
    827. 

  827.                 (opnode typeinfo.RegClass:$src1, typeinfo.ImmOperator:$src2))]>;
    828. 

  828. 

  829. // BinOpRI_F - Instructions like "cmp reg, imm".
    830. 

  830. class BinOpRI_F<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    831. 

  831.                 SDPatternOperator opnode, Format f>
    832. 

  832.   : BinOpRI<opcode, mnemonic, typeinfo, f, (outs),
    833. 

  833.             [(set EFLAGS,
    834. 

  834.                 (opnode typeinfo.RegClass:$src1, typeinfo.ImmOperator:$src2))]>;
    835. 

  835. 

  836. // BinOpRI_RF - Instructions like "add reg, reg, imm".
    837. 

  837. class BinOpRI_RF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    838. 

  838.                  SDNode opnode, Format f>
    839. 

  839.   : BinOpRI<opcode, mnemonic, typeinfo, f, (outs typeinfo.RegClass:$dst),
    840. 

  840.             [(set typeinfo.RegClass:$dst, EFLAGS,
    841. 

  841.                 (opnode typeinfo.RegClass:$src1, typeinfo.ImmOperator:$src2))]>;
    842. 

  842. // BinOpRI_RFF - Instructions like "adc reg, reg, imm".
    843. 

  843. class BinOpRI_RFF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    844. 

  844.                  SDNode opnode, Format f>
    845. 

  845.   : BinOpRI<opcode, mnemonic, typeinfo, f, (outs typeinfo.RegClass:$dst),
    846. 

  846.             [(set typeinfo.RegClass:$dst, EFLAGS,
    847. 

  847.                 (opnode typeinfo.RegClass:$src1, typeinfo.ImmOperator:$src2,
    848. 

  848.                         EFLAGS))], IIC_BIN_CARRY_NONMEM>;
    849. 

  849. 

  850. // BinOpRI8 - Instructions like "add reg, reg, imm8".
    851. 

  851. class BinOpRI8<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    852. 

  852.                Format f, dag outlist, list<dag> pattern,
    853. 

  853.                InstrItinClass itin = IIC_BIN_NONMEM>
    854. 

  854.   : ITy<opcode, f, typeinfo, outlist,
    855. 

  855.         (ins typeinfo.RegClass:$src1, typeinfo.Imm8Operand:$src2),
    856. 

  856.         mnemonic, "{$src2, $src1|$src1, $src2}", pattern, itin>,
    857. 

  857.     Sched<[WriteALU]> {
    858. 

  858.   let ImmT = Imm8; // Always 8-bit immediate.
    859. 

  859. }
    860. 

  860. 

  861. // BinOpRI8_R - Instructions like "add reg, reg, imm8".
    862. 

  862. class BinOpRI8_R<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    863. 

  863.                   SDNode opnode, Format f>
    864. 

  864.   : BinOpRI8<opcode, mnemonic, typeinfo, f, (outs typeinfo.RegClass:$dst),
    865. 

  865.              [(set typeinfo.RegClass:$dst,
    866. 

  866.                (opnode typeinfo.RegClass:$src1, typeinfo.Imm8Operator:$src2))]>;
    867. 

  867. 

  868. // BinOpRI8_F - Instructions like "cmp reg, imm8".
    869. 

  869. class BinOpRI8_F<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    870. 

  870.                   SDNode opnode, Format f>
    871. 

  871.   : BinOpRI8<opcode, mnemonic, typeinfo, f, (outs),
    872. 

  872.              [(set EFLAGS,
    873. 

  873.                (opnode typeinfo.RegClass:$src1, typeinfo.Imm8Operator:$src2))]>;
    874. 

  874. 

  875. // BinOpRI8_RF - Instructions like "add reg, reg, imm8".
    876. 

  876. class BinOpRI8_RF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    877. 

  877.                   SDNode opnode, Format f>
    878. 

  878.   : BinOpRI8<opcode, mnemonic, typeinfo, f, (outs typeinfo.RegClass:$dst),
    879. 

  879.              [(set typeinfo.RegClass:$dst, EFLAGS,
    880. 

  880.                (opnode typeinfo.RegClass:$src1, typeinfo.Imm8Operator:$src2))]>;
    881. 

  881. 

  882. // BinOpRI8_RFF - Instructions like "adc reg, reg, imm8".
    883. 

  883. class BinOpRI8_RFF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    884. 

  884.                    SDNode opnode, Format f>
    885. 

  885.   : BinOpRI8<opcode, mnemonic, typeinfo, f, (outs typeinfo.RegClass:$dst),
    886. 

  886.              [(set typeinfo.RegClass:$dst, EFLAGS,
    887. 

  887.                (opnode typeinfo.RegClass:$src1, typeinfo.Imm8Operator:$src2,
    888. 

  888.                        EFLAGS))], IIC_BIN_CARRY_NONMEM>;
    889. 

  889. 

  890. // BinOpMR - Instructions like "add [mem], reg".
    891. 

  891. class BinOpMR<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    892. 

  892.               list<dag> pattern, InstrItinClass itin = IIC_BIN_MEM>
    893. 

  893.   : ITy<opcode, MRMDestMem, typeinfo,
    894. 

  894.         (outs), (ins typeinfo.MemOperand:$dst, typeinfo.RegClass:$src),
    895. 

  895.         mnemonic, "{$src, $dst|$dst, $src}", pattern, itin>,
    896. 

  896.     Sched<[WriteALULd, WriteRMW]>;
    897. 

  897. 

  898. // BinOpMR_RMW - Instructions like "add [mem], reg".
    899. 

  899. class BinOpMR_RMW<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    900. 

  900.                   SDNode opnode>
    901. 

  901.   : BinOpMR<opcode, mnemonic, typeinfo,
    902. 

  902.           [(store (opnode (load addr:$dst), typeinfo.RegClass:$src), addr:$dst),
    903. 

  903.            (implicit EFLAGS)]>;
    904. 

  904. 

  905. // BinOpMR_RMW_FF - Instructions like "adc [mem], reg".
    906. 

  906. class BinOpMR_RMW_FF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    907. 

  907.                     SDNode opnode>
    908. 

  908.   : BinOpMR<opcode, mnemonic, typeinfo,
    909. 

  909.           [(store (opnode (load addr:$dst), typeinfo.RegClass:$src, EFLAGS),
    910. 

  910.                   addr:$dst),
    911. 

  911.            (implicit EFLAGS)], IIC_BIN_CARRY_MEM>;
    912. 

  912. 

  913. // BinOpMR_F - Instructions like "cmp [mem], reg".
    914. 

  914. class BinOpMR_F<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    915. 

  915.                   SDNode opnode>
    916. 

  916.   : BinOpMR<opcode, mnemonic, typeinfo,
    917. 

  917.             [(set EFLAGS, (opnode (load addr:$dst), typeinfo.RegClass:$src))]>;
    918. 

  918. 

  919. // BinOpMI - Instructions like "add [mem], imm".
    920. 

  920. class BinOpMI<string mnemonic, X86TypeInfo typeinfo,
    921. 

  921.               Format f, list<dag> pattern, bits<8> opcode = 0x80,
    922. 

  922.               InstrItinClass itin = IIC_BIN_MEM>
    923. 

  923.   : ITy<opcode, f, typeinfo,
    924. 

  924.         (outs), (ins typeinfo.MemOperand:$dst, typeinfo.ImmOperand:$src),
    925. 

  925.         mnemonic, "{$src, $dst|$dst, $src}", pattern, itin>,
    926. 

  926.     Sched<[WriteALULd, WriteRMW]> {
    927. 

  927.   let ImmT = typeinfo.ImmEncoding;
    928. 

  928. }
    929. 

  929. 

  930. // BinOpMI_RMW - Instructions like "add [mem], imm".
    931. 

  931. class BinOpMI_RMW<string mnemonic, X86TypeInfo typeinfo,
    932. 

  932.                   SDNode opnode, Format f>
    933. 

  933.   : BinOpMI<mnemonic, typeinfo, f,
    934. 

  934.             [(store (opnode (typeinfo.VT (load addr:$dst)),
    935. 

  935.                             typeinfo.ImmOperator:$src), addr:$dst),
    936. 

  936.              (implicit EFLAGS)]>;
    937. 

  937. // BinOpMI_RMW_FF - Instructions like "adc [mem], imm".
    938. 

  938. class BinOpMI_RMW_FF<string mnemonic, X86TypeInfo typeinfo,
    939. 

  939.                   SDNode opnode, Format f>
    940. 

  940.   : BinOpMI<mnemonic, typeinfo, f,
    941. 

  941.             [(store (opnode (typeinfo.VT (load addr:$dst)),
    942. 

  942.                             typeinfo.ImmOperator:$src, EFLAGS), addr:$dst),
    943. 

  943.              (implicit EFLAGS)], 0x80, IIC_BIN_CARRY_MEM>;
    944. 

  944. 

  945. // BinOpMI_F - Instructions like "cmp [mem], imm".
    946. 

  946. class BinOpMI_F<string mnemonic, X86TypeInfo typeinfo,
    947. 

  947.                 SDPatternOperator opnode, Format f, bits<8> opcode = 0x80>
    948. 

  948.   : BinOpMI<mnemonic, typeinfo, f,
    949. 

  949.             [(set EFLAGS, (opnode (typeinfo.VT (load addr:$dst)),
    950. 

  950.                                                typeinfo.ImmOperator:$src))],
    951. 

  951.             opcode>;
    952. 

  952. 

  953. // BinOpMI8 - Instructions like "add [mem], imm8".
    954. 

  954. class BinOpMI8<string mnemonic, X86TypeInfo typeinfo,
    955. 

  955.                Format f, list<dag> pattern,
    956. 

  956.                InstrItinClass itin = IIC_BIN_MEM>
    957. 

  957.   : ITy<0x82, f, typeinfo,
    958. 

  958.         (outs), (ins typeinfo.MemOperand:$dst, typeinfo.Imm8Operand:$src),
    959. 

  959.         mnemonic, "{$src, $dst|$dst, $src}", pattern, itin>,
    960. 

  960.     Sched<[WriteALULd, WriteRMW]> {
    961. 

  961.   let ImmT = Imm8; // Always 8-bit immediate.
    962. 

  962. }
    963. 

  963. 

  964. // BinOpMI8_RMW - Instructions like "add [mem], imm8".
    965. 

  965. class BinOpMI8_RMW<string mnemonic, X86TypeInfo typeinfo,
    966. 

  966.                    SDNode opnode, Format f>
    967. 

  967.   : BinOpMI8<mnemonic, typeinfo, f,
    968. 

  968.              [(store (opnode (load addr:$dst),
    969. 

  969.                              typeinfo.Imm8Operator:$src), addr:$dst),
    970. 

  970.               (implicit EFLAGS)]>;
    971. 

  971. 

  972. // BinOpMI8_RMW_FF - Instructions like "adc [mem], imm8".
    973. 

  973. class BinOpMI8_RMW_FF<string mnemonic, X86TypeInfo typeinfo,
    974. 

  974.                    SDNode opnode, Format f>
    975. 

  975.   : BinOpMI8<mnemonic, typeinfo, f,
    976. 

  976.              [(store (opnode (load addr:$dst),
    977. 

  977.                              typeinfo.Imm8Operator:$src, EFLAGS), addr:$dst),
    978. 

  978.               (implicit EFLAGS)], IIC_BIN_CARRY_MEM>;
    979. 

  979. 

  980. // BinOpMI8_F - Instructions like "cmp [mem], imm8".
    981. 

  981. class BinOpMI8_F<string mnemonic, X86TypeInfo typeinfo,
    982. 

  982.                  SDNode opnode, Format f>
    983. 

  983.   : BinOpMI8<mnemonic, typeinfo, f,
    984. 

  984.              [(set EFLAGS, (opnode (load addr:$dst),
    985. 

  985.                                    typeinfo.Imm8Operator:$src))]>;
    986. 

  986. 

  987. // BinOpAI - Instructions like "add %eax, %eax, imm", that imp-def EFLAGS.
    988. 

  988. class BinOpAI<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    989. 

  989.               Register areg, string operands,
    990. 

  990.               InstrItinClass itin = IIC_BIN_NONMEM>
    991. 

  991.   : ITy<opcode, RawFrm, typeinfo,
    992. 

  992.         (outs), (ins typeinfo.ImmOperand:$src),
    993. 

  993.         mnemonic, operands, [], itin>, Sched<[WriteALU]> {
    994. 

  994.   let ImmT = typeinfo.ImmEncoding;
    995. 

  995.   let Uses = [areg];
    996. 

  996.   let Defs = [areg, EFLAGS];
    997. 

  997.   let hasSideEffects = 0;
    998. 

  998. }
    999. 

  999. 

  1000. // BinOpAI_FF - Instructions like "adc %eax, %eax, imm", that implicitly define
    1001. 

  1001. // and use EFLAGS.
    1002. 

  1002. class BinOpAI_FF<bits<8> opcode, string mnemonic, X86TypeInfo typeinfo,
    1003. 

  1003.                 Register areg, string operands>
    1004. 

  1004.   : BinOpAI<opcode, mnemonic, typeinfo, areg, operands,
    1005. 

  1005.             IIC_BIN_CARRY_NONMEM> {
    1006. 

  1006.   let Uses = [areg, EFLAGS];
    1007. 

  1007. }
    1008. 

  1008. 

  1009. /// ArithBinOp_RF - This is an arithmetic binary operator where the pattern is
    1010. 

  1010. /// defined with "(set GPR:$dst, EFLAGS, (...".
    1011. 

  1011. ///
    1012. 

  1012. /// It would be nice to get rid of the second and third argument here, but
    1013. 

  1013. /// tblgen can't handle dependent type references aggressively enough: PR8330
    1014. 

  1014. multiclass ArithBinOp_RF<bits<8> BaseOpc, bits<8> BaseOpc2, bits<8> BaseOpc4,
    1015. 

  1015.                          string mnemonic, Format RegMRM, Format MemMRM,
    1016. 

  1016.                          SDNode opnodeflag, SDNode opnode,
    1017. 

  1017.                          bit CommutableRR, bit ConvertibleToThreeAddress> {
    1018. 

  1018.   let Defs = [EFLAGS] in {
    1019. 

  1019.     let Constraints = "$src1 = $dst" in {
    1020. 

  1020.       let isCommutable = CommutableRR,
    1021. 

  1021.           isConvertibleToThreeAddress = ConvertibleToThreeAddress in {
    1022. 

  1022.         def NAME#8rr  : BinOpRR_RF<BaseOpc, mnemonic, Xi8 , opnodeflag>;
    1023. 

  1023.         def NAME#16rr : BinOpRR_RF<BaseOpc, mnemonic, Xi16, opnodeflag>;
    1024. 

  1024.         def NAME#32rr : BinOpRR_RF<BaseOpc, mnemonic, Xi32, opnodeflag>;
    1025. 

  1025.         def NAME#64rr : BinOpRR_RF<BaseOpc, mnemonic, Xi64, opnodeflag>;
    1026. 

  1026.       } // isCommutable
    1027. 

  1027. 

  1028.       def NAME#8rr_REV  : BinOpRR_Rev<BaseOpc2, mnemonic, Xi8>;
    1029. 

  1029.       def NAME#16rr_REV : BinOpRR_Rev<BaseOpc2, mnemonic, Xi16>;
    1030. 

  1030.       def NAME#32rr_REV : BinOpRR_Rev<BaseOpc2, mnemonic, Xi32>;
    1031. 

  1031.       def NAME#64rr_REV : BinOpRR_Rev<BaseOpc2, mnemonic, Xi64>;
    1032. 

  1032. 

  1033.       def NAME#8rm   : BinOpRM_RF<BaseOpc2, mnemonic, Xi8 , opnodeflag>;
    1034. 

  1034.       def NAME#16rm  : BinOpRM_RF<BaseOpc2, mnemonic, Xi16, opnodeflag>;
    1035. 

  1035.       def NAME#32rm  : BinOpRM_RF<BaseOpc2, mnemonic, Xi32, opnodeflag>;
    1036. 

  1036.       def NAME#64rm  : BinOpRM_RF<BaseOpc2, mnemonic, Xi64, opnodeflag>;
    1037. 

  1037. 

  1038.       let isConvertibleToThreeAddress = ConvertibleToThreeAddress in {
    1039. 

  1039.         // NOTE: These are order specific, we want the ri8 forms to be listed
    1040. 

  1040.         // first so that they are slightly preferred to the ri forms.
    1041. 

  1041.         def NAME#16ri8 : BinOpRI8_RF<0x82, mnemonic, Xi16, opnodeflag, RegMRM>;
    1042. 

  1042.         def NAME#32ri8 : BinOpRI8_RF<0x82, mnemonic, Xi32, opnodeflag, RegMRM>;
    1043. 

  1043.         def NAME#64ri8 : BinOpRI8_RF<0x82, mnemonic, Xi64, opnodeflag, RegMRM>;…
    1044.