1 //===-- HexagonBaseInfo.h - Top level definitions for Hexagon --*- C++ -*--===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains small standalone helper functions and enum definitions for 11 // the Hexagon target useful for the compiler back-end and the MC libraries. 12 // As such, it deliberately does not include references to LLVM core 13 // code gen types, passes, etc.. 14 // 15 //===----------------------------------------------------------------------===// 16 17 #ifndef LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONBASEINFO_H 18 #define LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONBASEINFO_H 19 20 #include "HexagonMCTargetDesc.h" 21 #include "llvm/Support/ErrorHandling.h" 22 #include <stdint.h> 23 24 namespace llvm { 25 26 /// HexagonII - This namespace holds all of the target specific flags that 27 /// instruction info tracks. 28 /// 29 namespace HexagonII { 30 // *** The code below must match HexagonInstrFormat*.td *** // 31 32 // Insn types. 33 // *** Must match HexagonInstrFormat*.td *** 34 enum Type { 35 TypePSEUDO = 0, 36 TypeALU32 = 1, 37 TypeCR = 2, 38 TypeJR = 3, 39 TypeJ = 4, 40 TypeLD = 5, 41 TypeST = 6, 42 TypeSYSTEM = 7, 43 TypeXTYPE = 8, 44 TypeMEMOP = 9, 45 TypeNV = 10, 46 TypeDUPLEX = 11, 47 TypeCOMPOUND = 12, 48 TypeCVI_FIRST = 13, 49 TypeCVI_VA = TypeCVI_FIRST, 50 TypeCVI_VA_DV = 14, 51 TypeCVI_VX = 15, 52 TypeCVI_VX_DV = 16, 53 TypeCVI_VP = 17, 54 TypeCVI_VP_VS = 18, 55 TypeCVI_VS = 19, 56 TypeCVI_VINLANESAT= 20, 57 TypeCVI_VM_LD = 21, 58 TypeCVI_VM_TMP_LD = 22, 59 TypeCVI_VM_CUR_LD = 23, 60 TypeCVI_VM_VP_LDU = 24, 61 TypeCVI_VM_ST = 25, 62 TypeCVI_VM_NEW_ST = 26, 63 TypeCVI_VM_STU = 27, 64 TypeCVI_HIST = 28, 65 TypeCVI_LAST = TypeCVI_HIST, 66 TypePREFIX = 30, // Such as extenders. 67 TypeENDLOOP = 31 // Such as end of a HW loop. 68 }; 69 70 enum SubTarget { 71 HasV2SubT = 0xf, 72 HasV2SubTOnly = 0x1, 73 NoV2SubT = 0x0, 74 HasV3SubT = 0xe, 75 HasV3SubTOnly = 0x2, 76 NoV3SubT = 0x1, 77 HasV4SubT = 0xc, 78 NoV4SubT = 0x3, 79 HasV5SubT = 0x8, 80 NoV5SubT = 0x7 81 }; 82 83 enum AddrMode { 84 NoAddrMode = 0, // No addressing mode 85 Absolute = 1, // Absolute addressing mode 86 AbsoluteSet = 2, // Absolute set addressing mode 87 BaseImmOffset = 3, // Indirect with offset 88 BaseLongOffset = 4, // Indirect with long offset 89 BaseRegOffset = 5, // Indirect with register offset 90 PostInc = 6 // Post increment addressing mode 91 }; 92 93 // MemAccessSize is represented as 1+log2(N) where N is size in bits. 94 enum class MemAccessSize { 95 NoMemAccess = 0, // Not a memory acces instruction. 96 ByteAccess = 1, // Byte access instruction (memb). 97 HalfWordAccess = 2, // Half word access instruction (memh). 98 WordAccess = 3, // Word access instruction (memw). 99 DoubleWordAccess = 4, // Double word access instruction (memd) 100 // 5, // We do not have a 16 byte vector access. 101 Vector64Access = 7, // 64 Byte vector access instruction (vmem). 102 Vector128Access = 8 // 128 Byte vector access instruction (vmem). 103 }; 104 105 // MCInstrDesc TSFlags 106 // *** Must match HexagonInstrFormat*.td *** 107 enum { 108 // This 5-bit field describes the insn type. 109 TypePos = 0, 110 TypeMask = 0x1f, 111 112 // Solo instructions. 113 SoloPos = 5, 114 SoloMask = 0x1, 115 // Packed only with A or X-type instructions. 116 SoloAXPos = 6, 117 SoloAXMask = 0x1, 118 // Only A-type instruction in first slot or nothing. 119 SoloAin1Pos = 7, 120 SoloAin1Mask = 0x1, 121 122 // Predicated instructions. 123 PredicatedPos = 8, 124 PredicatedMask = 0x1, 125 PredicatedFalsePos = 9, 126 PredicatedFalseMask = 0x1, 127 PredicatedNewPos = 10, 128 PredicatedNewMask = 0x1, 129 PredicateLatePos = 11, 130 PredicateLateMask = 0x1, 131 132 // New-Value consumer instructions. 133 NewValuePos = 12, 134 NewValueMask = 0x1, 135 // New-Value producer instructions. 136 hasNewValuePos = 13, 137 hasNewValueMask = 0x1, 138 // Which operand consumes or produces a new value. 139 NewValueOpPos = 14, 140 NewValueOpMask = 0x7, 141 // Stores that can become new-value stores. 142 mayNVStorePos = 17, 143 mayNVStoreMask = 0x1, 144 // New-value store instructions. 145 NVStorePos = 18, 146 NVStoreMask = 0x1, 147 // Loads that can become current-value loads. 148 mayCVLoadPos = 19, 149 mayCVLoadMask = 0x1, 150 // Current-value load instructions. 151 CVLoadPos = 20, 152 CVLoadMask = 0x1, 153 154 // Extendable insns. 155 ExtendablePos = 21, 156 ExtendableMask = 0x1, 157 // Insns must be extended. 158 ExtendedPos = 22, 159 ExtendedMask = 0x1, 160 // Which operand may be extended. 161 ExtendableOpPos = 23, 162 ExtendableOpMask = 0x7, 163 // Signed or unsigned range. 164 ExtentSignedPos = 26, 165 ExtentSignedMask = 0x1, 166 // Number of bits of range before extending operand. 167 ExtentBitsPos = 27, 168 ExtentBitsMask = 0x1f, 169 // Alignment power-of-two before extending operand. 170 ExtentAlignPos = 32, 171 ExtentAlignMask = 0x3, 172 173 // Valid subtargets 174 validSubTargetPos = 34, 175 validSubTargetMask = 0xf, 176 177 // Addressing mode for load/store instructions. 178 AddrModePos = 40, 179 AddrModeMask = 0x7, 180 // Access size for load/store instructions. 181 MemAccessSizePos = 43, 182 MemAccesSizeMask = 0xf, 183 184 // Branch predicted taken. 185 TakenPos = 47, 186 TakenMask = 0x1, 187 188 // Floating-point instructions. 189 FPPos = 48, 190 FPMask = 0x1, 191 192 // New-Value producer-2 instructions. 193 hasNewValuePos2 = 50, 194 hasNewValueMask2 = 0x1, 195 196 // Which operand consumes or produces a new value. 197 NewValueOpPos2 = 51, 198 NewValueOpMask2 = 0x7, 199 200 // Accumulator instructions. 201 AccumulatorPos = 54, 202 AccumulatorMask = 0x1, 203 204 // Complex XU, prevent xu competition by prefering slot3 205 PrefersSlot3Pos = 55, 206 PrefersSlot3Mask = 0x1, 207 }; 208 209 // *** The code above must match HexagonInstrFormat*.td *** // 210 211 // Hexagon specific MO operand flag mask. 212 enum HexagonMOTargetFlagVal { 213 //===------------------------------------------------------------------===// 214 // Hexagon Specific MachineOperand flags. 215 MO_NO_FLAG, 216 217 HMOTF_ConstExtended = 1, 218 219 /// MO_PCREL - On a symbol operand, indicates a PC-relative relocation 220 /// Used for computing a global address for PIC compilations 221 MO_PCREL, 222 223 /// MO_GOT - Indicates a GOT-relative relocation 224 MO_GOT, 225 226 // Low or high part of a symbol. 227 MO_LO16, MO_HI16, 228 229 // Offset from the base of the SDA. 230 MO_GPREL, 231 232 // MO_GDGOT - indicates GOT relative relocation for TLS 233 // GeneralDynamic method 234 MO_GDGOT, 235 236 // MO_GDPLT - indicates PLT relative relocation for TLS 237 // GeneralDynamic method 238 MO_GDPLT, 239 240 // MO_IE - indicates non PIC relocation for TLS 241 // Initial Executable method 242 MO_IE, 243 244 // MO_IEGOT - indicates PIC relocation for TLS 245 // Initial Executable method 246 MO_IEGOT, 247 248 // MO_TPREL - indicates relocation for TLS 249 // local Executable method 250 MO_TPREL 251 }; 252 253 // Hexagon Sub-instruction classes. 254 enum SubInstructionGroup { 255 HSIG_None = 0, 256 HSIG_L1, 257 HSIG_L2, 258 HSIG_S1, 259 HSIG_S2, 260 HSIG_A, 261 HSIG_Compound 262 }; 263 264 // Hexagon Compound classes. 265 enum CompoundGroup { 266 HCG_None = 0, 267 HCG_A, 268 HCG_B, 269 HCG_C 270 }; 271 272 enum InstParseBits { 273 INST_PARSE_MASK = 0x0000c000, 274 INST_PARSE_PACKET_END = 0x0000c000, 275 INST_PARSE_LOOP_END = 0x00008000, 276 INST_PARSE_NOT_END = 0x00004000, 277 INST_PARSE_DUPLEX = 0x00000000, 278 INST_PARSE_EXTENDER = 0x00000000 279 }; 280 281 enum InstIClassBits : unsigned { 282 INST_ICLASS_MASK = 0xf0000000, 283 INST_ICLASS_EXTENDER = 0x00000000, 284 INST_ICLASS_J_1 = 0x10000000, 285 INST_ICLASS_J_2 = 0x20000000, 286 INST_ICLASS_LD_ST_1 = 0x30000000, 287 INST_ICLASS_LD_ST_2 = 0x40000000, 288 INST_ICLASS_J_3 = 0x50000000, 289 INST_ICLASS_CR = 0x60000000, 290 INST_ICLASS_ALU32_1 = 0x70000000, 291 INST_ICLASS_XTYPE_1 = 0x80000000, 292 INST_ICLASS_LD = 0x90000000, 293 INST_ICLASS_ST = 0xa0000000, 294 INST_ICLASS_ALU32_2 = 0xb0000000, 295 INST_ICLASS_XTYPE_2 = 0xc0000000, 296 INST_ICLASS_XTYPE_3 = 0xd0000000, 297 INST_ICLASS_XTYPE_4 = 0xe0000000, 298 INST_ICLASS_ALU32_3 = 0xf0000000 299 }; 300 301 } // End namespace HexagonII. 302 303 } // End namespace llvm. 304 305 #endif 306
