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  1. //===--- MipsABIFlags.h - MIPS ABI flags ----------------------------------===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===----------------------------------------------------------------------===//
  8. //
  9. // This file defines the constants for the ABI flags structure contained
  10. // in the .MIPS.abiflags section.
  11. //
  12. // https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking
  13. //
  14. //===----------------------------------------------------------------------===//
  15.  
  16. #ifndef LLVM_SUPPORT_MIPSABIFLAGS_H
  17. #define LLVM_SUPPORT_MIPSABIFLAGS_H
  18.  
  19. namespace llvm {
  20. namespace Mips {
  21.  
  22. // Values for the xxx_size bytes of an ABI flags structure.
  23. enum AFL_REG {
  24.   AFL_REG_NONE = 0x00, // No registers
  25.   AFL_REG_32 = 0x01,   // 32-bit registers
  26.   AFL_REG_64 = 0x02,   // 64-bit registers
  27.   AFL_REG_128 = 0x03   // 128-bit registers
  28. };
  29.  
  30. // Masks for the ases word of an ABI flags structure.
  31. enum AFL_ASE {
  32.   AFL_ASE_DSP = 0x00000001,       // DSP ASE
  33.   AFL_ASE_DSPR2 = 0x00000002,     // DSP R2 ASE
  34.   AFL_ASE_EVA = 0x00000004,       // Enhanced VA Scheme
  35.   AFL_ASE_MCU = 0x00000008,       // MCU (MicroController) ASE
  36.   AFL_ASE_MDMX = 0x00000010,      // MDMX ASE
  37.   AFL_ASE_MIPS3D = 0x00000020,    // MIPS-3D ASE
  38.   AFL_ASE_MT = 0x00000040,        // MT ASE
  39.   AFL_ASE_SMARTMIPS = 0x00000080, // SmartMIPS ASE
  40.   AFL_ASE_VIRT = 0x00000100,      // VZ ASE
  41.   AFL_ASE_MSA = 0x00000200,       // MSA ASE
  42.   AFL_ASE_MIPS16 = 0x00000400,    // MIPS16 ASE
  43.   AFL_ASE_MICROMIPS = 0x00000800, // MICROMIPS ASE
  44.   AFL_ASE_XPA = 0x00001000,       // XPA ASE
  45.   AFL_ASE_CRC = 0x00008000,       // CRC ASE
  46.   AFL_ASE_GINV = 0x00020000       // GINV ASE
  47. };
  48.  
  49. // Values for the isa_ext word of an ABI flags structure.
  50. enum AFL_EXT {
  51.   AFL_EXT_NONE = 0,         // None
  52.   AFL_EXT_XLR = 1,          // RMI Xlr instruction
  53.   AFL_EXT_OCTEON2 = 2,      // Cavium Networks Octeon2
  54.   AFL_EXT_OCTEONP = 3,      // Cavium Networks OcteonP
  55.   AFL_EXT_LOONGSON_3A = 4,  // Loongson 3A
  56.   AFL_EXT_OCTEON = 5,       // Cavium Networks Octeon
  57.   AFL_EXT_5900 = 6,         // MIPS R5900 instruction
  58.   AFL_EXT_4650 = 7,         // MIPS R4650 instruction
  59.   AFL_EXT_4010 = 8,         // LSI R4010 instruction
  60.   AFL_EXT_4100 = 9,         // NEC VR4100 instruction
  61.   AFL_EXT_3900 = 10,        // Toshiba R3900 instruction
  62.   AFL_EXT_10000 = 11,       // MIPS R10000 instruction
  63.   AFL_EXT_SB1 = 12,         // Broadcom SB-1 instruction
  64.   AFL_EXT_4111 = 13,        // NEC VR4111/VR4181 instruction
  65.   AFL_EXT_4120 = 14,        // NEC VR4120 instruction
  66.   AFL_EXT_5400 = 15,        // NEC VR5400 instruction
  67.   AFL_EXT_5500 = 16,        // NEC VR5500 instruction
  68.   AFL_EXT_LOONGSON_2E = 17, // ST Microelectronics Loongson 2E
  69.   AFL_EXT_LOONGSON_2F = 18, // ST Microelectronics Loongson 2F
  70.   AFL_EXT_OCTEON3 = 19      // Cavium Networks Octeon3
  71. };
  72.  
  73. // Values for the flags1 word of an ABI flags structure.
  74. enum AFL_FLAGS1 { AFL_FLAGS1_ODDSPREG = 1 };
  75.  
  76. // MIPS object attribute tags
  77. enum {
  78.   Tag_GNU_MIPS_ABI_FP = 4,  // Floating-point ABI used by this object file
  79.   Tag_GNU_MIPS_ABI_MSA = 8, // MSA ABI used by this object file
  80. };
  81.  
  82. // Values for the fp_abi word of an ABI flags structure
  83. // and for the Tag_GNU_MIPS_ABI_FP attribute tag.
  84. enum Val_GNU_MIPS_ABI_FP {
  85.   Val_GNU_MIPS_ABI_FP_ANY = 0,    // not tagged
  86.   Val_GNU_MIPS_ABI_FP_DOUBLE = 1, // hard float / -mdouble-float
  87.   Val_GNU_MIPS_ABI_FP_SINGLE = 2, // hard float / -msingle-float
  88.   Val_GNU_MIPS_ABI_FP_SOFT = 3,   // soft float
  89.   Val_GNU_MIPS_ABI_FP_OLD_64 = 4, // -mips32r2 -mfp64
  90.   Val_GNU_MIPS_ABI_FP_XX = 5,     // -mfpxx
  91.   Val_GNU_MIPS_ABI_FP_64 = 6,     // -mips32r2 -mfp64
  92.   Val_GNU_MIPS_ABI_FP_64A = 7     // -mips32r2 -mfp64 -mno-odd-spreg
  93. };
  94.  
  95. // Values for the Tag_GNU_MIPS_ABI_MSA attribute tag.
  96. enum Val_GNU_MIPS_ABI_MSA {
  97.   Val_GNU_MIPS_ABI_MSA_ANY = 0, // not tagged
  98.   Val_GNU_MIPS_ABI_MSA_128 = 1  // 128-bit MSA
  99. };
  100. }
  101. }
  102.  
  103. #endif
  104.