/* Internal functions.
   Copyright (C) 2011-2015 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

/* This file specifies a list of internal "functions".  These functions
   differ from built-in functions in that they have no linkage and cannot
   be called directly by the user.  They represent operations that are only
   synthesised by GCC itself.

   Internal functions are used instead of tree codes if the operation
   and its operands are more naturally represented as a GIMPLE_CALL
   than a GIMPLE_ASSIGN.

   Each entry in this file has the form:

     DEF_INTERNAL_FN (NAME, FLAGS, FNSPEC)

   where NAME is the name of the function, FLAGS is a set of
   ECF_* flags and FNSPEC is a string describing functions fnspec.
   
   Each entry must have a corresponding expander of the form:

     void expand_NAME (gimple_call stmt)

   where STMT is the statement that performs the call.  */

DEF_INTERNAL_FN (LOAD_LANES, ECF_CONST | ECF_LEAF, NULL)
DEF_INTERNAL_FN (STORE_LANES, ECF_CONST | ECF_LEAF, NULL)
DEF_INTERNAL_FN (GOMP_SIMD_LANE, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMD_VF, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMD_LAST_LANE, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMD_ORDERED_START, ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMD_ORDERED_END, ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (LOOP_VECTORIZED, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (MASK_LOAD, ECF_PURE | ECF_LEAF, NULL)
DEF_INTERNAL_FN (MASK_STORE, ECF_LEAF, NULL)
DEF_INTERNAL_FN (ANNOTATE,  ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (UBSAN_NULL, ECF_LEAF | ECF_NOTHROW, ".R.")
DEF_INTERNAL_FN (UBSAN_BOUNDS, ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (UBSAN_VPTR, ECF_LEAF | ECF_NOTHROW, ".RR..")
DEF_INTERNAL_FN (UBSAN_CHECK_ADD, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (UBSAN_CHECK_SUB, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (UBSAN_CHECK_MUL, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (UBSAN_OBJECT_SIZE, ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (ABNORMAL_DISPATCHER, ECF_NORETURN, NULL)
DEF_INTERNAL_FN (BUILTIN_EXPECT, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (ASAN_CHECK, ECF_TM_PURE | ECF_LEAF | ECF_NOTHROW, ".R...")
DEF_INTERNAL_FN (ADD_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (SUB_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (MUL_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (TSAN_FUNC_EXIT, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (VA_ARG, ECF_NOTHROW | ECF_LEAF, NULL)

/* An unduplicable, uncombinable function.  Generally used to preserve
   a CFG property in the face of jump threading, tail merging or
   other such optimizations.  The first argument distinguishes
   between uses.  See internal-fn.h for usage.  */
DEF_INTERNAL_FN (UNIQUE, ECF_NOTHROW, NULL)

/* DIM_SIZE and DIM_POS return the size of a particular compute
   dimension and the executing thread's position within that
   dimension.  DIM_POS is pure (and not const) so that it isn't
   thought to clobber memory and can be gcse'd within a single
   parallel region, but not across FORK/JOIN boundaries.  They take a
   single INTEGER_CST argument.  */
DEF_INTERNAL_FN (GOACC_DIM_SIZE, ECF_CONST | ECF_NOTHROW | ECF_LEAF, ".")
DEF_INTERNAL_FN (GOACC_DIM_POS, ECF_PURE | ECF_NOTHROW | ECF_LEAF, ".")

/* OpenACC looping abstraction.  See internal-fn.h for usage.  */
DEF_INTERNAL_FN (GOACC_LOOP, ECF_PURE | ECF_NOTHROW, NULL)