internal-fn.def revision 1.4
1 /* Internal functions. 2 Copyright (C) 2011-2016 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it under 7 the terms of the GNU General Public License as published by the Free 8 Software Foundation; either version 3, or (at your option) any later 9 version. 10 11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 /* This file specifies a list of internal "functions". These functions 21 differ from built-in functions in that they have no linkage and cannot 22 be called directly by the user. They represent operations that are only 23 synthesised by GCC itself. 24 25 Internal functions are used instead of tree codes if the operation 26 and its operands are more naturally represented as a GIMPLE_CALL 27 than a GIMPLE_ASSIGN. 28 29 Each entry in this file has one of the forms: 30 31 DEF_INTERNAL_FN (NAME, FLAGS, FNSPEC) 32 DEF_INTERNAL_OPTAB_FN (NAME, FLAGS, OPTAB, TYPE) 33 DEF_INTERNAL_FLT_FN (NAME, FLAGS, OPTAB, TYPE) 34 DEF_INTERNAL_INT_FN (NAME, FLAGS, OPTAB, TYPE) 35 36 where NAME is the name of the function, FLAGS is a set of 37 ECF_* flags and FNSPEC is a string describing functions fnspec. 38 39 DEF_INTERNAL_OPTAB_FN defines an internal function that maps to a 40 direct optab. The function should only be called with a given 41 set of types if the associated optab is available for the modes 42 of those types. OPTAB says what optab to use (without the trailing 43 "_optab") and TYPE categorizes the optab based on its inputs and 44 outputs. The possible types of optab are: 45 46 - mask_load: currently just maskload 47 - load_lanes: currently just vec_load_lanes 48 49 - mask_store: currently just maskstore 50 - store_lanes: currently just vec_store_lanes 51 52 DEF_INTERNAL_FLT_FN is like DEF_INTERNAL_OPTAB_FN, but in addition, 53 the function implements the computational part of a built-in math 54 function BUILT_IN_<NAME>{F,,L}. Unlike some built-in functions, 55 these internal functions never set errno. 56 57 DEF_INTERNAL_INT_FN is like DEF_INTERNAL_OPTAB_FN, but in addition 58 says that the function extends the C-level BUILT_IN_<NAME>{,L,LL,IMAX} 59 group of functions to any integral mode (including vector modes). 60 61 Each entry must have a corresponding expander of the form: 62 63 void expand_NAME (gimple_call stmt) 64 65 where STMT is the statement that performs the call. These are generated 66 automatically for optab functions and call out to a function or macro 67 called expand_<TYPE>_optab_fn. */ 68 69 #ifndef DEF_INTERNAL_FN 70 #define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) 71 #endif 72 73 #ifndef DEF_INTERNAL_OPTAB_FN 74 #define DEF_INTERNAL_OPTAB_FN(NAME, FLAGS, OPTAB, TYPE) \ 75 DEF_INTERNAL_FN (NAME, FLAGS | ECF_LEAF, NULL) 76 #endif 77 78 #ifndef DEF_INTERNAL_FLT_FN 79 #define DEF_INTERNAL_FLT_FN(NAME, FLAGS, OPTAB, TYPE) \ 80 DEF_INTERNAL_OPTAB_FN (NAME, FLAGS, OPTAB, TYPE) 81 #endif 82 83 #ifndef DEF_INTERNAL_INT_FN 84 #define DEF_INTERNAL_INT_FN(NAME, FLAGS, OPTAB, TYPE) \ 85 DEF_INTERNAL_OPTAB_FN (NAME, FLAGS, OPTAB, TYPE) 86 #endif 87 88 DEF_INTERNAL_OPTAB_FN (MASK_LOAD, ECF_PURE, maskload, mask_load) 89 DEF_INTERNAL_OPTAB_FN (LOAD_LANES, ECF_CONST, vec_load_lanes, load_lanes) 90 91 DEF_INTERNAL_OPTAB_FN (MASK_STORE, 0, maskstore, mask_store) 92 DEF_INTERNAL_OPTAB_FN (STORE_LANES, ECF_CONST, vec_store_lanes, store_lanes) 93 94 DEF_INTERNAL_OPTAB_FN (RSQRT, ECF_CONST, rsqrt, unary) 95 96 /* Unary math functions. */ 97 DEF_INTERNAL_FLT_FN (ACOS, ECF_CONST, acos, unary) 98 DEF_INTERNAL_FLT_FN (ASIN, ECF_CONST, asin, unary) 99 DEF_INTERNAL_FLT_FN (ATAN, ECF_CONST, atan, unary) 100 DEF_INTERNAL_FLT_FN (COS, ECF_CONST, cos, unary) 101 DEF_INTERNAL_FLT_FN (EXP, ECF_CONST, exp, unary) 102 DEF_INTERNAL_FLT_FN (EXP10, ECF_CONST, exp10, unary) 103 DEF_INTERNAL_FLT_FN (EXP2, ECF_CONST, exp2, unary) 104 DEF_INTERNAL_FLT_FN (EXPM1, ECF_CONST, expm1, unary) 105 DEF_INTERNAL_FLT_FN (LOG, ECF_CONST, log, unary) 106 DEF_INTERNAL_FLT_FN (LOG10, ECF_CONST, log10, unary) 107 DEF_INTERNAL_FLT_FN (LOG1P, ECF_CONST, log1p, unary) 108 DEF_INTERNAL_FLT_FN (LOG2, ECF_CONST, log2, unary) 109 DEF_INTERNAL_FLT_FN (LOGB, ECF_CONST, logb, unary) 110 DEF_INTERNAL_FLT_FN (SIGNIFICAND, ECF_CONST, significand, unary) 111 DEF_INTERNAL_FLT_FN (SIN, ECF_CONST, sin, unary) 112 DEF_INTERNAL_FLT_FN (SQRT, ECF_CONST, sqrt, unary) 113 DEF_INTERNAL_FLT_FN (TAN, ECF_CONST, tan, unary) 114 115 /* FP rounding. */ 116 DEF_INTERNAL_FLT_FN (CEIL, ECF_CONST, ceil, unary) 117 DEF_INTERNAL_FLT_FN (FLOOR, ECF_CONST, floor, unary) 118 DEF_INTERNAL_FLT_FN (NEARBYINT, ECF_CONST, nearbyint, unary) 119 DEF_INTERNAL_FLT_FN (RINT, ECF_CONST, rint, unary) 120 DEF_INTERNAL_FLT_FN (ROUND, ECF_CONST, round, unary) 121 DEF_INTERNAL_FLT_FN (TRUNC, ECF_CONST, btrunc, unary) 122 123 /* Binary math functions. */ 124 DEF_INTERNAL_FLT_FN (ATAN2, ECF_CONST, atan2, binary) 125 DEF_INTERNAL_FLT_FN (COPYSIGN, ECF_CONST, copysign, binary) 126 DEF_INTERNAL_FLT_FN (FMOD, ECF_CONST, fmod, binary) 127 DEF_INTERNAL_FLT_FN (POW, ECF_CONST, pow, binary) 128 DEF_INTERNAL_FLT_FN (REMAINDER, ECF_CONST, remainder, binary) 129 DEF_INTERNAL_FLT_FN (SCALB, ECF_CONST, scalb, binary) 130 DEF_INTERNAL_FLT_FN (FMIN, ECF_CONST, fmin, binary) 131 DEF_INTERNAL_FLT_FN (FMAX, ECF_CONST, fmax, binary) 132 133 /* FP scales. */ 134 DEF_INTERNAL_FLT_FN (LDEXP, ECF_CONST, ldexp, binary) 135 136 /* Unary integer ops. */ 137 DEF_INTERNAL_INT_FN (CLRSB, ECF_CONST, clrsb, unary) 138 DEF_INTERNAL_INT_FN (CLZ, ECF_CONST, clz, unary) 139 DEF_INTERNAL_INT_FN (CTZ, ECF_CONST, ctz, unary) 140 DEF_INTERNAL_INT_FN (FFS, ECF_CONST, ffs, unary) 141 DEF_INTERNAL_INT_FN (PARITY, ECF_CONST, parity, unary) 142 DEF_INTERNAL_INT_FN (POPCOUNT, ECF_CONST, popcount, unary) 143 144 DEF_INTERNAL_FN (GOMP_SIMD_LANE, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL) 145 DEF_INTERNAL_FN (GOMP_SIMD_VF, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 146 DEF_INTERNAL_FN (GOMP_SIMD_LAST_LANE, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 147 DEF_INTERNAL_FN (GOMP_SIMD_ORDERED_START, ECF_LEAF | ECF_NOTHROW, NULL) 148 DEF_INTERNAL_FN (GOMP_SIMD_ORDERED_END, ECF_LEAF | ECF_NOTHROW, NULL) 149 DEF_INTERNAL_FN (LOOP_VECTORIZED, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL) 150 DEF_INTERNAL_FN (ANNOTATE, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 151 DEF_INTERNAL_FN (UBSAN_NULL, ECF_LEAF | ECF_NOTHROW, ".R.") 152 DEF_INTERNAL_FN (UBSAN_BOUNDS, ECF_LEAF | ECF_NOTHROW, NULL) 153 DEF_INTERNAL_FN (UBSAN_VPTR, ECF_LEAF | ECF_NOTHROW, ".RR..") 154 DEF_INTERNAL_FN (UBSAN_CHECK_ADD, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 155 DEF_INTERNAL_FN (UBSAN_CHECK_SUB, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 156 DEF_INTERNAL_FN (UBSAN_CHECK_MUL, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 157 DEF_INTERNAL_FN (UBSAN_OBJECT_SIZE, ECF_LEAF | ECF_NOTHROW, NULL) 158 DEF_INTERNAL_FN (ABNORMAL_DISPATCHER, ECF_NORETURN, NULL) 159 DEF_INTERNAL_FN (BUILTIN_EXPECT, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 160 DEF_INTERNAL_FN (ASAN_CHECK, ECF_TM_PURE | ECF_LEAF | ECF_NOTHROW, ".R...") 161 DEF_INTERNAL_FN (ADD_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 162 DEF_INTERNAL_FN (SUB_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 163 DEF_INTERNAL_FN (MUL_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL) 164 DEF_INTERNAL_FN (TSAN_FUNC_EXIT, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL) 165 DEF_INTERNAL_FN (VA_ARG, ECF_NOTHROW | ECF_LEAF, NULL) 166 167 /* An unduplicable, uncombinable function. Generally used to preserve 168 a CFG property in the face of jump threading, tail merging or 169 other such optimizations. The first argument distinguishes 170 between uses. See internal-fn.h for usage. */ 171 DEF_INTERNAL_FN (UNIQUE, ECF_NOTHROW, NULL) 172 173 /* DIM_SIZE and DIM_POS return the size of a particular compute 174 dimension and the executing thread's position within that 175 dimension. DIM_POS is pure (and not const) so that it isn't 176 thought to clobber memory and can be gcse'd within a single 177 parallel region, but not across FORK/JOIN boundaries. They take a 178 single INTEGER_CST argument. */ 179 DEF_INTERNAL_FN (GOACC_DIM_SIZE, ECF_CONST | ECF_NOTHROW | ECF_LEAF, ".") 180 DEF_INTERNAL_FN (GOACC_DIM_POS, ECF_PURE | ECF_NOTHROW | ECF_LEAF, ".") 181 182 /* OpenACC looping abstraction. See internal-fn.h for usage. */ 183 DEF_INTERNAL_FN (GOACC_LOOP, ECF_PURE | ECF_NOTHROW, NULL) 184 185 /* OpenACC reduction abstraction. See internal-fn.h for usage. */ 186 DEF_INTERNAL_FN (GOACC_REDUCTION, ECF_NOTHROW | ECF_LEAF, NULL) 187 188 /* Set errno to EDOM, if GCC knows how to do that directly for the 189 current target. */ 190 DEF_INTERNAL_FN (SET_EDOM, ECF_LEAF | ECF_NOTHROW, NULL) 191 192 #undef DEF_INTERNAL_INT_FN 193 #undef DEF_INTERNAL_FLT_FN 194 #undef DEF_INTERNAL_OPTAB_FN 195 #undef DEF_INTERNAL_FN 196
Indexes created Mon Oct 26 00:26:21 UTC 2026