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