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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