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/* General types and functions that are uselful for processing of OpenMP,
OpenACC and similar directivers at various stages of compilation.
Copyright (C) 2005-2017 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/>. */
#ifndef GCC_OMP_GENERAL_H
#define GCC_OMP_GENERAL_H
#include "gomp-constants.h"
/* Flags for an OpenACC loop. */
enum oacc_loop_flags {
OLF_SEQ = 1u << 0, /* Explicitly sequential */
OLF_AUTO = 1u << 1, /* Compiler chooses axes. */
OLF_INDEPENDENT = 1u << 2, /* Iterations are known independent. */
OLF_GANG_STATIC = 1u << 3, /* Gang partitioning is static (has op). */
OLF_TILE = 1u << 4, /* Tiled loop. */
/* Explicitly specified loop axes. */
OLF_DIM_BASE = 5,
OLF_DIM_GANG = 1u << (OLF_DIM_BASE + GOMP_DIM_GANG),
OLF_DIM_WORKER = 1u << (OLF_DIM_BASE + GOMP_DIM_WORKER),
OLF_DIM_VECTOR = 1u << (OLF_DIM_BASE + GOMP_DIM_VECTOR),
OLF_MAX = OLF_DIM_BASE + GOMP_DIM_MAX
};
/* A structure holding the elements of:
for (V = N1; V cond N2; V += STEP) [...] */
struct omp_for_data_loop
{
tree v, n1, n2, step;
enum tree_code cond_code;
};
/* A structure describing the main elements of a parallel loop. */
struct omp_for_data
{
struct omp_for_data_loop loop;
tree chunk_size;
gomp_for *for_stmt;
tree pre, iter_type;
tree tiling; /* Tiling values (if non null). */
int collapse; /* Collapsed loops, 1 for a non-collapsed loop. */
int ordered;
bool have_nowait, have_ordered, simd_schedule;
unsigned char sched_modifiers;
enum omp_clause_schedule_kind sched_kind;
struct omp_for_data_loop *loops;
};
#define OACC_FN_ATTRIB "oacc function"
extern tree omp_find_clause (tree clauses, enum omp_clause_code kind);
extern bool omp_is_reference (tree decl);
extern void omp_adjust_for_condition (location_t loc, enum tree_code *cond_code,
tree *n2);
extern tree omp_get_for_step_from_incr (location_t loc, tree incr);
extern void omp_extract_for_data (gomp_for *for_stmt, struct omp_for_data *fd,
struct omp_for_data_loop *loops);
extern gimple *omp_build_barrier (tree lhs);
extern int omp_max_vf (void);
extern int omp_max_simt_vf (void);
extern tree oacc_launch_pack (unsigned code, tree device, unsigned op);
extern void oacc_replace_fn_attrib (tree fn, tree dims);
extern void oacc_set_fn_attrib (tree fn, tree clauses, vec<tree> *args);
extern tree oacc_build_routine_dims (tree clauses);
extern tree oacc_get_fn_attrib (tree fn);
extern int oacc_get_fn_dim_size (tree fn, int axis);
extern int oacc_get_ifn_dim_arg (const gimple *stmt);
#endif /* GCC_OMP_GENERAL_H */