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111
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1 /* General types and functions that are uselful for processing of OpenMP,
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2 OpenACC and similar directivers at various stages of compilation.
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3
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4 Copyright (C) 2005-2020 Free Software Foundation, Inc.
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it under
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9 the terms of the GNU General Public License as published by the Free
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10 Software Foundation; either version 3, or (at your option) any later
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11 version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 #ifndef GCC_OMP_GENERAL_H
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23 #define GCC_OMP_GENERAL_H
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24
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25 #include "gomp-constants.h"
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26
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27 /* Flags for an OpenACC loop. */
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28
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29 enum oacc_loop_flags {
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30 OLF_SEQ = 1u << 0, /* Explicitly sequential */
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31 OLF_AUTO = 1u << 1, /* Compiler chooses axes. */
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32 OLF_INDEPENDENT = 1u << 2, /* Iterations are known independent. */
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33 OLF_GANG_STATIC = 1u << 3, /* Gang partitioning is static (has op). */
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34 OLF_TILE = 1u << 4, /* Tiled loop. */
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35
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36 /* Explicitly specified loop axes. */
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37 OLF_DIM_BASE = 5,
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38 OLF_DIM_GANG = 1u << (OLF_DIM_BASE + GOMP_DIM_GANG),
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39 OLF_DIM_WORKER = 1u << (OLF_DIM_BASE + GOMP_DIM_WORKER),
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40 OLF_DIM_VECTOR = 1u << (OLF_DIM_BASE + GOMP_DIM_VECTOR),
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41
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42 OLF_MAX = OLF_DIM_BASE + GOMP_DIM_MAX
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43 };
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44
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45 /* A structure holding the elements of:
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46 for (V = N1; V cond N2; V += STEP) [...] */
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47
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48 struct omp_for_data_loop
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49 {
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50 tree v, n1, n2, step;
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51 enum tree_code cond_code;
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52 };
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53
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54 /* A structure describing the main elements of a parallel loop. */
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55
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56 struct omp_for_data
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57 {
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58 struct omp_for_data_loop loop;
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59 tree chunk_size;
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60 gomp_for *for_stmt;
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61 tree pre, iter_type;
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62 tree tiling; /* Tiling values (if non null). */
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63 int collapse; /* Collapsed loops, 1 for a non-collapsed loop. */
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64 int ordered;
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65 bool have_nowait, have_ordered, simd_schedule, have_reductemp;
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66 bool have_pointer_condtemp, have_scantemp, have_nonctrl_scantemp;
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67 int lastprivate_conditional;
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68 unsigned char sched_modifiers;
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69 enum omp_clause_schedule_kind sched_kind;
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70 struct omp_for_data_loop *loops;
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71 };
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72
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73 #define OACC_FN_ATTRIB "oacc function"
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74
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75 extern tree omp_find_clause (tree clauses, enum omp_clause_code kind);
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76 extern bool omp_is_allocatable_or_ptr (tree decl);
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77 extern tree omp_check_optional_argument (tree decl, bool for_present_check);
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78 extern bool omp_is_reference (tree decl);
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79 extern void omp_adjust_for_condition (location_t loc, enum tree_code *cond_code,
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80 tree *n2, tree v, tree step);
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81 extern tree omp_get_for_step_from_incr (location_t loc, tree incr);
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82 extern void omp_extract_for_data (gomp_for *for_stmt, struct omp_for_data *fd,
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83 struct omp_for_data_loop *loops);
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84 extern gimple *omp_build_barrier (tree lhs);
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131
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85 extern poly_uint64 omp_max_vf (void);
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86 extern int omp_max_simt_vf (void);
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87 extern int omp_constructor_traits_to_codes (tree, enum tree_code *);
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88 extern int omp_context_selector_matches (tree);
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89 extern int omp_context_selector_set_compare (const char *, tree, tree);
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90 extern tree omp_get_context_selector (tree, const char *, const char *);
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91 extern tree omp_resolve_declare_variant (tree);
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92 extern tree oacc_launch_pack (unsigned code, tree device, unsigned op);
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93 extern tree oacc_replace_fn_attrib_attr (tree attribs, tree dims);
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94 extern void oacc_replace_fn_attrib (tree fn, tree dims);
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95 extern void oacc_set_fn_attrib (tree fn, tree clauses, vec<tree> *args);
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96 extern int oacc_verify_routine_clauses (tree, tree *, location_t,
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97 const char *);
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98 extern tree oacc_build_routine_dims (tree clauses);
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99 extern tree oacc_get_fn_attrib (tree fn);
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100 extern bool offloading_function_p (tree fn);
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101 extern int oacc_get_fn_dim_size (tree fn, int axis);
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102 extern int oacc_get_ifn_dim_arg (const gimple *stmt);
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103
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104 enum omp_requires {
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105 OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER = 0xf,
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106 OMP_REQUIRES_UNIFIED_ADDRESS = 0x10,
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107 OMP_REQUIRES_UNIFIED_SHARED_MEMORY = 0x20,
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108 OMP_REQUIRES_DYNAMIC_ALLOCATORS = 0x40,
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109 OMP_REQUIRES_REVERSE_OFFLOAD = 0x80,
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110 OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER_USED = 0x100,
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111 OMP_REQUIRES_TARGET_USED = 0x200
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112 };
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113
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114 extern GTY(()) enum omp_requires omp_requires_mask;
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115
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116 #endif /* GCC_OMP_GENERAL_H */
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