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111
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1 /* XL compiler hardware transactional execution intrinsics
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131
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2 Copyright (C) 2013-2018 Free Software Foundation, Inc.
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111
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3 Contributed by Andreas Krebbel (Andreas.Krebbel@de.ibm.com)
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it under
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8 the terms of the GNU General Public License as published by the Free
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9 Software Foundation; either version 3, or (at your option) any later
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10 version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #ifndef _HTMXLINTRIN_H
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22 #define _HTMXLINTRIN_H
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23
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24 #include <stdint.h>
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25
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26 #include <htmintrin.h>
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27
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28 #ifdef __cplusplus
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29 extern "C" {
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30 #endif
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31
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32 /* These intrinsics are being made available for compatibility with
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33 the IBM XL compiler. For documentation please see the "z/OS XL
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34 C/C++ Programming Guide" publicly available on the web. */
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35
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36 /* FIXME: __TM_simple_begin and __TM_begin should be marked
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37 __always_inline__ as well but this currently produces an error
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38 since the tbegin builtins are "returns_twice" and setjmp_call_p
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39 (calls.c) therefore identifies the functions as calling setjmp.
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40 The tree inliner currently refuses to inline functions calling
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41 setjmp. */
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42
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43 long
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44 __TM_simple_begin ()
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45 {
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46 return __builtin_tbegin_nofloat (0);
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47 }
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48
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49 long
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50 __TM_begin (void* const tdb)
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51 {
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52 return __builtin_tbegin_nofloat (tdb);
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53 }
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54
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55 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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56 __TM_end ()
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57 {
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58 return __builtin_tend ();
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59 }
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60
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61 extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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62 __TM_abort ()
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63 {
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64 return __builtin_tabort (_HTM_FIRST_USER_ABORT_CODE);
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65 }
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66
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67 extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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68 __TM_named_abort (unsigned char const code)
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69 {
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70 return __builtin_tabort ((int)_HTM_FIRST_USER_ABORT_CODE + code);
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71 }
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72
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73 extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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74 __TM_non_transactional_store (void* const addr, long long const value)
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75 {
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76 __builtin_non_tx_store ((uint64_t*)addr, (uint64_t)value);
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77 }
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78
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79 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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80 __TM_nesting_depth (void* const tdb_ptr)
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81 {
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82 int depth = __builtin_tx_nesting_depth ();
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83 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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84
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85 if (depth != 0)
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86 return depth;
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87
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88 if (tdb->format != 1)
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89 return 0;
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90 return tdb->nesting_depth;
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91 }
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92
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93 /* Transaction failure diagnostics */
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94
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95 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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96 __TM_is_user_abort (void* const tdb_ptr)
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97 {
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98 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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99
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100 if (tdb->format != 1)
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101 return 0;
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102
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103 return !!(tdb->abort_code >= _HTM_FIRST_USER_ABORT_CODE);
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104 }
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105
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106 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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107 __TM_is_named_user_abort (void* const tdb_ptr, unsigned char* code)
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108 {
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109 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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110
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111 if (tdb->format != 1)
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112 return 0;
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113
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114 if (tdb->abort_code >= _HTM_FIRST_USER_ABORT_CODE)
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115 {
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116 *code = tdb->abort_code - _HTM_FIRST_USER_ABORT_CODE;
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117 return 1;
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118 }
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119 return 0;
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120 }
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121
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122 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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123 __TM_is_illegal (void* const tdb_ptr)
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124 {
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125 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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126
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127 return (tdb->format == 1
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128 && (tdb->abort_code == 4 /* unfiltered program interruption */
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129 || tdb->abort_code == 11 /* restricted instruction */));
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130 }
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131
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132 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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133 __TM_is_footprint_exceeded (void* const tdb_ptr)
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134 {
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135 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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136
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137 return (tdb->format == 1
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138 && (tdb->abort_code == 7 /* fetch overflow */
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139 || tdb->abort_code == 8 /* store overflow */));
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140 }
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141
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142 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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143 __TM_is_nested_too_deep (void* const tdb_ptr)
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144 {
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145 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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146
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147 return tdb->format == 1 && tdb->abort_code == 13; /* depth exceeded */
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148 }
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149
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150 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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151 __TM_is_conflict (void* const tdb_ptr)
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152 {
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153 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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154
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155 return (tdb->format == 1
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156 && (tdb->abort_code == 9 /* fetch conflict */
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157 || tdb->abort_code == 10 /* store conflict */));
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158 }
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159
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160 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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161 __TM_is_failure_persistent (long const result)
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162 {
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163 return result == _HTM_TBEGIN_PERSISTENT;
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164 }
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165
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166 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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167 __TM_failure_address (void* const tdb_ptr)
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168 {
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169 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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170 #ifdef __s390x__
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171 return tdb->atia;
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172 #else
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173 return tdb->atia & 0xffffffff;
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174 #endif
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175 }
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176
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177 extern __inline long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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178 __TM_failure_code (void* const tdb_ptr)
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179 {
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180 struct __htm_tdb *tdb = (struct __htm_tdb*)tdb_ptr;
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181
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182 return tdb->abort_code;
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183 }
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184
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185 #ifdef __cplusplus
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186 }
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187 #endif
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188
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189 #endif /* _HTMXLINTRIN_H */
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