1 /* General types and functions that are uselful for processing of OpenMP, 2 OpenACC and similar directivers at various stages of compilation. 3 4 Copyright (C) 2005-2022 Free Software Foundation, Inc. 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free 10 Software Foundation; either version 3, or (at your option) any later 11 version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16 for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 21 22 #ifndef GCC_OMP_GENERAL_H 23 #define GCC_OMP_GENERAL_H 24 25 #include "gomp-constants.h" 26 27 /* Flags for an OpenACC loop. */ 28 29 enum oacc_loop_flags { 30 OLF_SEQ = 1u << 0, /* Explicitly sequential */ 31 OLF_AUTO = 1u << 1, /* Compiler chooses axes. */ 32 OLF_INDEPENDENT = 1u << 2, /* Iterations are known independent. */ 33 OLF_GANG_STATIC = 1u << 3, /* Gang partitioning is static (has op). */ 34 OLF_TILE = 1u << 4, /* Tiled loop. */ 35 OLF_REDUCTION = 1u << 5, /* Reduction loop. */ 36 37 /* Explicitly specified loop axes. */ 38 OLF_DIM_BASE = 6, 39 OLF_DIM_GANG = 1u << (OLF_DIM_BASE + GOMP_DIM_GANG), 40 OLF_DIM_WORKER = 1u << (OLF_DIM_BASE + GOMP_DIM_WORKER), 41 OLF_DIM_VECTOR = 1u << (OLF_DIM_BASE + GOMP_DIM_VECTOR), 42 43 OLF_MAX = OLF_DIM_BASE + GOMP_DIM_MAX 44 }; 45 46 /* A structure holding the elements of: 47 for (V = N1; V cond N2; V += STEP) [...] 48 or for non-rectangular loops: 49 for (V = M1 * W + N1; V cond M2 * W + N2; V += STEP; 50 where W is V of the OUTER-th loop (e.g. for OUTER 1 it is the 51 the index of the immediately surrounding loop). 52 NON_RECT_REFERENCED is true for loops referenced by loops 53 with non-NULL M1 or M2. */ 54 55 struct omp_for_data_loop 56 { 57 tree v, n1, n2, step, m1, m2; 58 enum tree_code cond_code; 59 int outer; 60 bool non_rect_referenced; 61 }; 62 63 /* A structure describing the main elements of a parallel loop. */ 64 65 struct omp_for_data 66 { 67 struct omp_for_data_loop loop; 68 tree chunk_size; 69 gomp_for *for_stmt; 70 tree pre, iter_type; 71 tree tiling; /* Tiling values (if non null). */ 72 int collapse; /* Collapsed loops, 1 for a non-collapsed loop. */ 73 int ordered; 74 int first_nonrect, last_nonrect; 75 bool have_nowait, have_ordered, simd_schedule, have_reductemp; 76 bool have_pointer_condtemp, have_scantemp, have_nonctrl_scantemp; 77 bool non_rect; 78 int lastprivate_conditional; 79 unsigned char sched_modifiers; 80 enum omp_clause_schedule_kind sched_kind; 81 struct omp_for_data_loop *loops; 82 /* The following are relevant only for non-rectangular loops 83 where only a single loop depends on an outer loop iterator. */ 84 tree first_inner_iterations; /* Number of iterations of the inner 85 loop with the first outer iterator 86 (or adjn1, if that is non-NULL). */ 87 tree factor; /* (m2 - m1) * outer_step / inner_step. */ 88 /* Adjusted n1 of the outer loop in such loop nests (if needed). */ 89 tree adjn1; 90 }; 91 92 #define OACC_FN_ATTRIB "oacc function" 93 94 extern tree omp_find_clause (tree clauses, enum omp_clause_code kind); 95 extern bool omp_is_allocatable_or_ptr (tree decl); 96 extern tree omp_check_optional_argument (tree decl, bool for_present_check); 97 extern bool omp_privatize_by_reference (tree decl); 98 extern void omp_adjust_for_condition (location_t loc, enum tree_code *cond_code, 99 tree *n2, tree v, tree step); 100 extern tree omp_get_for_step_from_incr (location_t loc, tree incr); 101 extern void omp_extract_for_data (gomp_for *for_stmt, struct omp_for_data *fd, 102 struct omp_for_data_loop *loops); 103 extern gimple *omp_build_barrier (tree lhs); 104 extern tree find_combined_omp_for (tree *, int *, void *); 105 extern poly_uint64 omp_max_vf (void); 106 extern int omp_max_simt_vf (void); 107 extern int omp_constructor_traits_to_codes (tree, enum tree_code *); 108 extern tree omp_check_context_selector (location_t loc, tree ctx); 109 extern void omp_mark_declare_variant (location_t loc, tree variant, 110 tree construct); 111 extern int omp_context_selector_matches (tree); 112 extern int omp_context_selector_set_compare (const char *, tree, tree); 113 extern tree omp_get_context_selector (tree, const char *, const char *); 114 extern tree omp_resolve_declare_variant (tree); 115 extern tree oacc_launch_pack (unsigned code, tree device, unsigned op); 116 extern tree oacc_replace_fn_attrib_attr (tree attribs, tree dims); 117 extern void oacc_replace_fn_attrib (tree fn, tree dims); 118 extern void oacc_set_fn_attrib (tree fn, tree clauses, vec<tree> *args); 119 extern int oacc_verify_routine_clauses (tree, tree *, location_t, 120 const char *); 121 extern tree oacc_build_routine_dims (tree clauses); 122 extern tree oacc_get_fn_attrib (tree fn); 123 extern bool offloading_function_p (tree fn); 124 extern int oacc_get_fn_dim_size (tree fn, int axis); 125 extern int oacc_get_ifn_dim_arg (const gimple *stmt); 126 127 enum omp_requires { 128 OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER = 0xf, 129 OMP_REQUIRES_UNIFIED_ADDRESS = 0x10, 130 OMP_REQUIRES_UNIFIED_SHARED_MEMORY = 0x20, 131 OMP_REQUIRES_DYNAMIC_ALLOCATORS = 0x40, 132 OMP_REQUIRES_REVERSE_OFFLOAD = 0x80, 133 OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER_USED = 0x100, 134 OMP_REQUIRES_TARGET_USED = 0x200 135 }; 136 137 extern GTY(()) enum omp_requires omp_requires_mask; 138 139 static inline dump_flags_t 140 get_openacc_privatization_dump_flags () 141 { 142 dump_flags_t l_dump_flags = MSG_NOTE; 143 144 /* For '--param=openacc-privatization=quiet', diagnostics only go to dump 145 files. */ 146 if (param_openacc_privatization == OPENACC_PRIVATIZATION_QUIET) 147 l_dump_flags |= MSG_PRIORITY_INTERNALS; 148 149 return l_dump_flags; 150 } 151 152 extern tree omp_build_component_ref (tree obj, tree field); 153 154 #endif /* GCC_OMP_GENERAL_H */ 155
Indexes created Tue Feb 24 01:34:59 UTC 2026