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/* Internal functions.
Copyright (C) 2011-2017 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 one of the forms:
DEF_INTERNAL_FN (NAME, FLAGS, FNSPEC)
DEF_INTERNAL_OPTAB_FN (NAME, FLAGS, OPTAB, TYPE)
DEF_INTERNAL_FLT_FN (NAME, FLAGS, OPTAB, TYPE)
DEF_INTERNAL_INT_FN (NAME, FLAGS, OPTAB, TYPE)
where NAME is the name of the function, FLAGS is a set of
ECF_* flags and FNSPEC is a string describing functions fnspec.
DEF_INTERNAL_OPTAB_FN defines an internal function that maps to a
direct optab. The function should only be called with a given
set of types if the associated optab is available for the modes
of those types. OPTAB says what optab to use (without the trailing
"_optab") and TYPE categorizes the optab based on its inputs and
outputs. The possible types of optab are:
- mask_load: currently just maskload
- load_lanes: currently just vec_load_lanes
- mask_store: currently just maskstore
- store_lanes: currently just vec_store_lanes
DEF_INTERNAL_FLT_FN is like DEF_INTERNAL_OPTAB_FN, but in addition,
the function implements the computational part of a built-in math
function BUILT_IN_<NAME>{F,,L}. Unlike some built-in functions,
these internal functions never set errno.
DEF_INTERNAL_INT_FN is like DEF_INTERNAL_OPTAB_FN, but in addition
says that the function extends the C-level BUILT_IN_<NAME>{,L,LL,IMAX}
group of functions to any integral mode (including vector modes).
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. These are generated
automatically for optab functions and call out to a function or macro
called expand_<TYPE>_optab_fn. */
#ifndef DEF_INTERNAL_FN
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC)
#endif
#ifndef DEF_INTERNAL_OPTAB_FN
#define DEF_INTERNAL_OPTAB_FN(NAME, FLAGS, OPTAB, TYPE) \
DEF_INTERNAL_FN (NAME, FLAGS | ECF_LEAF, NULL)
#endif
#ifndef DEF_INTERNAL_FLT_FN
#define DEF_INTERNAL_FLT_FN(NAME, FLAGS, OPTAB, TYPE) \
DEF_INTERNAL_OPTAB_FN (NAME, FLAGS, OPTAB, TYPE)
#endif
#ifndef DEF_INTERNAL_INT_FN
#define DEF_INTERNAL_INT_FN(NAME, FLAGS, OPTAB, TYPE) \
DEF_INTERNAL_OPTAB_FN (NAME, FLAGS, OPTAB, TYPE)
#endif
DEF_INTERNAL_OPTAB_FN (MASK_LOAD, ECF_PURE, maskload, mask_load)
DEF_INTERNAL_OPTAB_FN (LOAD_LANES, ECF_CONST, vec_load_lanes, load_lanes)
DEF_INTERNAL_OPTAB_FN (MASK_STORE, 0, maskstore, mask_store)
DEF_INTERNAL_OPTAB_FN (STORE_LANES, ECF_CONST, vec_store_lanes, store_lanes)
DEF_INTERNAL_OPTAB_FN (RSQRT, ECF_CONST, rsqrt, unary)
/* Unary math functions. */
DEF_INTERNAL_FLT_FN (ACOS, ECF_CONST, acos, unary)
DEF_INTERNAL_FLT_FN (ASIN, ECF_CONST, asin, unary)
DEF_INTERNAL_FLT_FN (ATAN, ECF_CONST, atan, unary)
DEF_INTERNAL_FLT_FN (COS, ECF_CONST, cos, unary)
DEF_INTERNAL_FLT_FN (EXP, ECF_CONST, exp, unary)
DEF_INTERNAL_FLT_FN (EXP10, ECF_CONST, exp10, unary)
DEF_INTERNAL_FLT_FN (EXP2, ECF_CONST, exp2, unary)
DEF_INTERNAL_FLT_FN (EXPM1, ECF_CONST, expm1, unary)
DEF_INTERNAL_FLT_FN (LOG, ECF_CONST, log, unary)
DEF_INTERNAL_FLT_FN (LOG10, ECF_CONST, log10, unary)
DEF_INTERNAL_FLT_FN (LOG1P, ECF_CONST, log1p, unary)
DEF_INTERNAL_FLT_FN (LOG2, ECF_CONST, log2, unary)
DEF_INTERNAL_FLT_FN (LOGB, ECF_CONST, logb, unary)
DEF_INTERNAL_FLT_FN (SIGNIFICAND, ECF_CONST, significand, unary)
DEF_INTERNAL_FLT_FN (SIN, ECF_CONST, sin, unary)
DEF_INTERNAL_FLT_FN (SQRT, ECF_CONST, sqrt, unary)
DEF_INTERNAL_FLT_FN (TAN, ECF_CONST, tan, unary)
/* FP rounding. */
DEF_INTERNAL_FLT_FN (CEIL, ECF_CONST, ceil, unary)
DEF_INTERNAL_FLT_FN (FLOOR, ECF_CONST, floor, unary)
DEF_INTERNAL_FLT_FN (NEARBYINT, ECF_CONST, nearbyint, unary)
DEF_INTERNAL_FLT_FN (RINT, ECF_CONST, rint, unary)
DEF_INTERNAL_FLT_FN (ROUND, ECF_CONST, round, unary)
DEF_INTERNAL_FLT_FN (TRUNC, ECF_CONST, btrunc, unary)
/* Binary math functions. */
DEF_INTERNAL_FLT_FN (ATAN2, ECF_CONST, atan2, binary)
DEF_INTERNAL_FLT_FN (COPYSIGN, ECF_CONST, copysign, binary)
DEF_INTERNAL_FLT_FN (FMOD, ECF_CONST, fmod, binary)
DEF_INTERNAL_FLT_FN (POW, ECF_CONST, pow, binary)
DEF_INTERNAL_FLT_FN (REMAINDER, ECF_CONST, remainder, binary)
DEF_INTERNAL_FLT_FN (SCALB, ECF_CONST, scalb, binary)
DEF_INTERNAL_FLT_FN (FMIN, ECF_CONST, fmin, binary)
DEF_INTERNAL_FLT_FN (FMAX, ECF_CONST, fmax, binary)
/* FP scales. */
DEF_INTERNAL_FLT_FN (LDEXP, ECF_CONST, ldexp, binary)
/* Unary integer ops. */
DEF_INTERNAL_INT_FN (CLRSB, ECF_CONST, clrsb, unary)
DEF_INTERNAL_INT_FN (CLZ, ECF_CONST, clz, unary)
DEF_INTERNAL_INT_FN (CTZ, ECF_CONST, ctz, unary)
DEF_INTERNAL_INT_FN (FFS, ECF_CONST, ffs, unary)
DEF_INTERNAL_INT_FN (PARITY, ECF_CONST, parity, unary)
DEF_INTERNAL_INT_FN (POPCOUNT, ECF_CONST, popcount, unary)
DEF_INTERNAL_FN (GOMP_USE_SIMT, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_ENTER, ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_ENTER_ALLOC, ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_EXIT, ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_LANE, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_VF, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_LAST_LANE, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_ORDERED_PRED, ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_VOTE_ANY, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_XCHG_BFLY, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, NULL)
DEF_INTERNAL_FN (GOMP_SIMT_XCHG_IDX, ECF_NOVOPS | ECF_LEAF | ECF_NOTHROW, 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 (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 (ASAN_MARK, ECF_LEAF | ECF_NOTHROW, ".R..")
DEF_INTERNAL_FN (ASAN_POISON, ECF_LEAF | ECF_NOTHROW | ECF_NOVOPS, NULL)
DEF_INTERNAL_FN (ASAN_POISON_USE, ECF_LEAF | ECF_NOTHROW | ECF_NOVOPS, NULL)
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)
DEF_INTERNAL_FN (PHI, 0, 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. This might be overly conservative. */
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)
/* OpenACC reduction abstraction. See internal-fn.h for usage. */
DEF_INTERNAL_FN (GOACC_REDUCTION, ECF_NOTHROW | ECF_LEAF, NULL)
/* Openacc tile abstraction. Describes the spans of the element loop.
GOACC_TILE (num-loops, loop-no, tile-arg, tile-mask, element-mask). */
DEF_INTERNAL_FN (GOACC_TILE, ECF_NOTHROW | ECF_LEAF, NULL)
/* Set errno to EDOM, if GCC knows how to do that directly for the
current target. */
DEF_INTERNAL_FN (SET_EDOM, ECF_LEAF | ECF_NOTHROW, NULL)
/* Atomic functions. These don't have ECF_NOTHROW because for
-fnon-call-exceptions they can throw, otherwise we set
gimple_call_nothrow_p on it. */
DEF_INTERNAL_FN (ATOMIC_BIT_TEST_AND_SET, ECF_LEAF, NULL)
DEF_INTERNAL_FN (ATOMIC_BIT_TEST_AND_COMPLEMENT, ECF_LEAF, NULL)
DEF_INTERNAL_FN (ATOMIC_BIT_TEST_AND_RESET, ECF_LEAF, NULL)
DEF_INTERNAL_FN (ATOMIC_COMPARE_EXCHANGE, ECF_LEAF, NULL)
/* To implement [[fallthrough]]. */
DEF_INTERNAL_FN (FALLTHROUGH, ECF_LEAF | ECF_NOTHROW, NULL)
/* To implement __builtin_launder. */
DEF_INTERNAL_FN (LAUNDER, ECF_LEAF | ECF_NOTHROW | ECF_NOVOPS, NULL)
/* Divmod function. */
DEF_INTERNAL_FN (DIVMOD, ECF_CONST | ECF_LEAF, NULL)
#undef DEF_INTERNAL_INT_FN
#undef DEF_INTERNAL_FLT_FN
#undef DEF_INTERNAL_OPTAB_FN
#undef DEF_INTERNAL_FN