gcc/internal-fn.def

   1 /* Internal functions.
   2    Copyright (C) 2011-2015 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 the form:
  30
  31      DEF_INTERNAL_FN (NAME, FLAGS, FNSPEC)
  32
  33    where NAME is the name of the function, FLAGS is a set of
  34    ECF_* flags and FNSPEC is a string describing functions fnspec.
  35
  36    Each entry must have a corresponding expander of the form:
  37
  38      void expand_NAME (gimple_call stmt)
  39
  40    where STMT is the statement that performs the call.  */
  41
  42 DEF_INTERNAL_FN (LOAD_LANES, ECF_CONST | ECF_LEAF, NULL)
  43 DEF_INTERNAL_FN (STORE_LANES, ECF_CONST | ECF_LEAF, NULL)
  44 DEF_INTERNAL_FN (GOMP_SIMD_LANE, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
  45 DEF_INTERNAL_FN (GOMP_SIMD_VF, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  46 DEF_INTERNAL_FN (GOMP_SIMD_LAST_LANE, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  47 DEF_INTERNAL_FN (GOMP_SIMD_ORDERED_START, ECF_LEAF | ECF_NOTHROW, NULL)
  48 DEF_INTERNAL_FN (GOMP_SIMD_ORDERED_END, ECF_LEAF | ECF_NOTHROW, NULL)
  49 DEF_INTERNAL_FN (LOOP_VECTORIZED, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
  50 DEF_INTERNAL_FN (MASK_LOAD, ECF_PURE | ECF_LEAF, NULL)
  51 DEF_INTERNAL_FN (MASK_STORE, ECF_LEAF, NULL)
  52 DEF_INTERNAL_FN (ANNOTATE,  ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  53 DEF_INTERNAL_FN (UBSAN_NULL, ECF_LEAF | ECF_NOTHROW, ".R.")
  54 DEF_INTERNAL_FN (UBSAN_BOUNDS, ECF_LEAF | ECF_NOTHROW, NULL)
  55 DEF_INTERNAL_FN (UBSAN_VPTR, ECF_LEAF | ECF_NOTHROW, ".RR..")
  56 DEF_INTERNAL_FN (UBSAN_CHECK_ADD, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  57 DEF_INTERNAL_FN (UBSAN_CHECK_SUB, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  58 DEF_INTERNAL_FN (UBSAN_CHECK_MUL, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  59 DEF_INTERNAL_FN (UBSAN_OBJECT_SIZE, ECF_LEAF | ECF_NOTHROW, NULL)
  60 DEF_INTERNAL_FN (ABNORMAL_DISPATCHER, ECF_NORETURN, NULL)
  61 DEF_INTERNAL_FN (BUILTIN_EXPECT, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  62 DEF_INTERNAL_FN (ASAN_CHECK, ECF_TM_PURE | ECF_LEAF | ECF_NOTHROW, ".R...")
  63 DEF_INTERNAL_FN (ADD_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  64 DEF_INTERNAL_FN (SUB_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  65 DEF_INTERNAL_FN (MUL_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
  66 DEF_INTERNAL_FN (TSAN_FUNC_EXIT, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
  67 DEF_INTERNAL_FN (VA_ARG, ECF_NOTHROW | ECF_LEAF, NULL)
  68
  69 /* An unduplicable, uncombinable function.  Generally used to preserve
  70    a CFG property in the face of jump threading, tail merging or
  71    other such optimizations.  The first argument distinguishes
  72    between uses.  See internal-fn.h for usage.  */
  73 DEF_INTERNAL_FN (UNIQUE, ECF_NOTHROW, NULL)
  74
  75 /* DIM_SIZE and DIM_POS return the size of a particular compute
  76    dimension and the executing thread's position within that
  77    dimension.  DIM_POS is pure (and not const) so that it isn't
  78    thought to clobber memory and can be gcse'd within a single
  79    parallel region, but not across FORK/JOIN boundaries.  They take a
  80    single INTEGER_CST argument.  */
  81 DEF_INTERNAL_FN (GOACC_DIM_SIZE, ECF_CONST | ECF_NOTHROW | ECF_LEAF, ".")
  82 DEF_INTERNAL_FN (GOACC_DIM_POS, ECF_PURE | ECF_NOTHROW | ECF_LEAF, ".")
  83
  84 /* OpenACC looping abstraction.  See internal-fn.h for usage.  */
  85 DEF_INTERNAL_FN (GOACC_LOOP, ECF_PURE | ECF_NOTHROW, NULL)
  86
  87 /* OpenACC reduction abstraction.  See internal-fn.h  for usage.  */
  88 DEF_INTERNAL_FN (GOACC_REDUCTION, ECF_NOTHROW | ECF_LEAF, NULL)