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Diffstat (limited to 'gcc/tree-streamer-out.cc')
| -rw-r--r-- | gcc/tree-streamer-out.cc | 1045 |
1 files changed, 1045 insertions, 0 deletions
diff --git a/gcc/tree-streamer-out.cc b/gcc/tree-streamer-out.cc new file mode 100644 index 0000000..23d15a5 --- /dev/null +++ b/gcc/tree-streamer-out.cc @@ -0,0 +1,1045 @@ +/* Routines for emitting trees to a file stream. + + Copyright (C) 2011-2022 Free Software Foundation, Inc. + Contributed by Diego Novillo <dnovillo@google.com> + +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/>. */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "backend.h" +#include "target.h" +#include "tree.h" +#include "gimple.h" +#include "tree-streamer.h" +#include "cgraph.h" +#include "alias.h" +#include "stor-layout.h" +#include "gomp-constants.h" +#include "print-tree.h" + + +/* Output the STRING constant to the string + table in OB. Then put the index onto the INDEX_STREAM. */ + +void +streamer_write_string_cst (struct output_block *ob, + struct lto_output_stream *index_stream, + tree string) +{ + streamer_write_string_with_length (ob, index_stream, + string ? TREE_STRING_POINTER (string) + : NULL, + string ? TREE_STRING_LENGTH (string) : 0, + true); +} + + +/* Output the identifier ID to the string + table in OB. Then put the index onto the INDEX_STREAM. */ + +static void +write_identifier (struct output_block *ob, + struct lto_output_stream *index_stream, + tree id) +{ + streamer_write_string_with_length (ob, index_stream, + IDENTIFIER_POINTER (id), + IDENTIFIER_LENGTH (id), + true); +} + + +/* Pack all the non-pointer fields of the TS_BASE structure of + expression EXPR into bitpack BP. */ + +static inline void +pack_ts_base_value_fields (struct bitpack_d *bp, tree expr) +{ + if (streamer_debugging) + bp_pack_value (bp, TREE_CODE (expr), 16); + if (!TYPE_P (expr)) + { + bp_pack_value (bp, TREE_SIDE_EFFECTS (expr), 1); + bp_pack_value (bp, TREE_CONSTANT (expr), 1); + bp_pack_value (bp, TREE_READONLY (expr), 1); + + /* TREE_PUBLIC is used on types to indicate that the type + has a TYPE_CACHED_VALUES vector. This is not streamed out, + so we skip it here. */ + bp_pack_value (bp, TREE_PUBLIC (expr), 1); + } + else + bp_pack_value (bp, 0, 4); + bp_pack_value (bp, TREE_ADDRESSABLE (expr), 1); + bp_pack_value (bp, TREE_THIS_VOLATILE (expr), 1); + if (DECL_P (expr)) + { + bp_pack_value (bp, DECL_UNSIGNED (expr), 1); + bp_pack_value (bp, DECL_NAMELESS (expr), 1); + } + else if (TYPE_P (expr)) + bp_pack_value (bp, TYPE_UNSIGNED (expr), 1); + else + bp_pack_value (bp, 0, 1); + /* We write debug info two times, do not confuse the second one. + The only relevant TREE_ASM_WRITTEN use is on SSA names. */ + bp_pack_value (bp, (TREE_CODE (expr) != SSA_NAME + ? 0 : TREE_ASM_WRITTEN (expr)), 1); + if (TYPE_P (expr)) + bp_pack_value (bp, TYPE_ARTIFICIAL (expr), 1); + else + bp_pack_value (bp, TREE_NO_WARNING (expr), 1); + bp_pack_value (bp, TREE_NOTHROW (expr), 1); + bp_pack_value (bp, TREE_STATIC (expr), 1); + if (TREE_CODE (expr) != TREE_BINFO) + bp_pack_value (bp, TREE_PRIVATE (expr), 1); + else + bp_pack_value (bp, 0, 1); + bp_pack_value (bp, TREE_PROTECTED (expr), 1); + bp_pack_value (bp, TREE_DEPRECATED (expr), 1); + if (TYPE_P (expr)) + { + if (AGGREGATE_TYPE_P (expr)) + bp_pack_value (bp, TYPE_REVERSE_STORAGE_ORDER (expr), 1); + else + bp_pack_value (bp, TYPE_SATURATING (expr), 1); + if (lto_stream_offload_p) + /* Host and offload targets have no common meaning of address + spaces. */ + ; + else + bp_pack_value (bp, TYPE_ADDR_SPACE (expr), 8); + } + else if (TREE_CODE (expr) == BIT_FIELD_REF || TREE_CODE (expr) == MEM_REF) + { + bp_pack_value (bp, REF_REVERSE_STORAGE_ORDER (expr), 1); + bp_pack_value (bp, 0, 8); + } + else if (TREE_CODE (expr) == SSA_NAME) + { + bp_pack_value (bp, SSA_NAME_IS_DEFAULT_DEF (expr), 1); + bp_pack_value (bp, 0, 8); + } + else if (TREE_CODE (expr) == CALL_EXPR) + { + bp_pack_value (bp, CALL_EXPR_BY_DESCRIPTOR (expr), 1); + bp_pack_value (bp, 0, 8); + } + else + bp_pack_value (bp, 0, 9); +} + + +/* Pack all the non-pointer fields of the TS_INTEGER_CST structure of + expression EXPR into bitpack BP. */ + +static void +pack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr) +{ + int i; + /* Note that the number of elements has already been written out in + streamer_write_tree_header. */ + for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++) + bp_pack_var_len_int (bp, TREE_INT_CST_ELT (expr, i)); +} + + +/* Pack all the non-pointer fields of the TS_REAL_CST structure of + expression EXPR into bitpack BP. */ + +static void +pack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr) +{ + unsigned i; + REAL_VALUE_TYPE r; + + r = TREE_REAL_CST (expr); + bp_pack_value (bp, r.cl, 2); + bp_pack_value (bp, r.decimal, 1); + bp_pack_value (bp, r.sign, 1); + bp_pack_value (bp, r.signalling, 1); + bp_pack_value (bp, r.canonical, 1); + bp_pack_value (bp, r.uexp, EXP_BITS); + for (i = 0; i < SIGSZ; i++) + bp_pack_value (bp, r.sig[i], HOST_BITS_PER_LONG); +} + + +/* Pack all the non-pointer fields of the TS_FIXED_CST structure of + expression EXPR into bitpack BP. */ + +static void +pack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr) +{ + struct fixed_value fv = TREE_FIXED_CST (expr); + bp_pack_machine_mode (bp, fv.mode); + bp_pack_var_len_int (bp, fv.data.low); + bp_pack_var_len_int (bp, fv.data.high); +} + +/* Pack all the non-pointer fields of the TS_DECL_COMMON structure + of expression EXPR into bitpack BP. */ + +static void +pack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr) +{ + bp_pack_machine_mode (bp, DECL_MODE (expr)); + bp_pack_value (bp, DECL_NONLOCAL (expr), 1); + bp_pack_value (bp, DECL_VIRTUAL_P (expr), 1); + bp_pack_value (bp, DECL_IGNORED_P (expr), 1); + bp_pack_value (bp, DECL_ABSTRACT_P (expr), 1); + bp_pack_value (bp, DECL_ARTIFICIAL (expr), 1); + bp_pack_value (bp, DECL_USER_ALIGN (expr), 1); + bp_pack_value (bp, DECL_PRESERVE_P (expr), 1); + bp_pack_value (bp, DECL_EXTERNAL (expr), 1); + bp_pack_value (bp, DECL_NOT_GIMPLE_REG_P (expr), 1); + bp_pack_var_len_unsigned (bp, DECL_ALIGN (expr)); + + if (TREE_CODE (expr) == LABEL_DECL) + { + /* Note that we do not write LABEL_DECL_UID. The reader will + always assume an initial value of -1 so that the + label_to_block_map is recreated by gimple_set_bb. */ + bp_pack_var_len_unsigned (bp, EH_LANDING_PAD_NR (expr)); + } + + else if (TREE_CODE (expr) == FIELD_DECL) + { + bp_pack_value (bp, DECL_PACKED (expr), 1); + bp_pack_value (bp, DECL_NONADDRESSABLE_P (expr), 1); + bp_pack_value (bp, DECL_PADDING_P (expr), 1); + if (DECL_BIT_FIELD (expr)) + bp_pack_value (bp, DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD (expr), 1); + else + bp_pack_value (bp, DECL_FIELD_ABI_IGNORED (expr), 1); + bp_pack_value (bp, expr->decl_common.off_align, 8); + } + + else if (VAR_P (expr)) + { + bp_pack_value (bp, DECL_HAS_DEBUG_EXPR_P (expr), 1); + bp_pack_value (bp, DECL_NONLOCAL_FRAME (expr), 1); + } + + else if (TREE_CODE (expr) == PARM_DECL) + bp_pack_value (bp, DECL_HIDDEN_STRING_LENGTH (expr), 1); + + if (TREE_CODE (expr) == RESULT_DECL + || TREE_CODE (expr) == PARM_DECL + || VAR_P (expr)) + { + bp_pack_value (bp, DECL_BY_REFERENCE (expr), 1); + if (VAR_P (expr) || TREE_CODE (expr) == PARM_DECL) + bp_pack_value (bp, DECL_HAS_VALUE_EXPR_P (expr), 1); + } +} + + +/* Pack all the non-pointer fields of the TS_DECL_WRTL structure + of expression EXPR into bitpack BP. */ + +static void +pack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr) +{ + bp_pack_value (bp, DECL_REGISTER (expr), 1); +} + + +/* Pack all the non-pointer fields of the TS_DECL_WITH_VIS structure + of expression EXPR into bitpack BP. */ + +static void +pack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr) +{ + bp_pack_value (bp, DECL_COMMON (expr), 1); + bp_pack_value (bp, DECL_DLLIMPORT_P (expr), 1); + bp_pack_value (bp, DECL_WEAK (expr), 1); + bp_pack_value (bp, DECL_SEEN_IN_BIND_EXPR_P (expr), 1); + bp_pack_value (bp, DECL_COMDAT (expr), 1); + bp_pack_value (bp, DECL_VISIBILITY (expr), 2); + bp_pack_value (bp, DECL_VISIBILITY_SPECIFIED (expr), 1); + + if (VAR_P (expr)) + { + bp_pack_value (bp, DECL_HARD_REGISTER (expr), 1); + /* DECL_IN_TEXT_SECTION is set during final asm output only. */ + bp_pack_value (bp, DECL_IN_CONSTANT_POOL (expr), 1); + } + + if (TREE_CODE (expr) == FUNCTION_DECL) + { + bp_pack_value (bp, DECL_FINAL_P (expr), 1); + bp_pack_value (bp, DECL_CXX_CONSTRUCTOR_P (expr), 1); + bp_pack_value (bp, DECL_CXX_DESTRUCTOR_P (expr), 1); + } +} + + +/* Pack all the non-pointer fields of the TS_FUNCTION_DECL structure + of expression EXPR into bitpack BP. */ + +static void +pack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr) +{ + bp_pack_enum (bp, built_in_class, BUILT_IN_LAST, + DECL_BUILT_IN_CLASS (expr)); + bp_pack_value (bp, DECL_STATIC_CONSTRUCTOR (expr), 1); + bp_pack_value (bp, DECL_STATIC_DESTRUCTOR (expr), 1); + bp_pack_value (bp, DECL_UNINLINABLE (expr), 1); + bp_pack_value (bp, DECL_POSSIBLY_INLINED (expr), 1); + bp_pack_value (bp, DECL_IS_NOVOPS (expr), 1); + bp_pack_value (bp, DECL_IS_RETURNS_TWICE (expr), 1); + bp_pack_value (bp, DECL_IS_MALLOC (expr), 1); + bp_pack_value (bp, FUNCTION_DECL_DECL_TYPE (expr), 2); + bp_pack_value (bp, DECL_IS_OPERATOR_DELETE_P (expr), 1); + bp_pack_value (bp, DECL_DECLARED_INLINE_P (expr), 1); + bp_pack_value (bp, DECL_STATIC_CHAIN (expr), 1); + bp_pack_value (bp, DECL_NO_INLINE_WARNING_P (expr), 1); + bp_pack_value (bp, DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr), 1); + bp_pack_value (bp, DECL_NO_LIMIT_STACK (expr), 1); + bp_pack_value (bp, DECL_DISREGARD_INLINE_LIMITS (expr), 1); + bp_pack_value (bp, DECL_PURE_P (expr), 1); + bp_pack_value (bp, DECL_LOOPING_CONST_OR_PURE_P (expr), 1); + bp_pack_value (bp, DECL_IS_REPLACEABLE_OPERATOR (expr), 1); + if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN) + bp_pack_value (bp, DECL_UNCHECKED_FUNCTION_CODE (expr), 32); +} + + +/* Pack all the non-pointer fields of the TS_TYPE_COMMON structure + of expression EXPR into bitpack BP. */ + +static void +pack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr) +{ + /* for VECTOR_TYPE, TYPE_MODE reevaluates the mode using target_flags + not necessary valid in a global context. + Use the raw value previously set by layout_type. */ + bp_pack_machine_mode (bp, TYPE_MODE_RAW (expr)); + /* TYPE_NO_FORCE_BLK is private to stor-layout and need + no streaming. */ + bp_pack_value (bp, TYPE_PACKED (expr), 1); + bp_pack_value (bp, TYPE_RESTRICT (expr), 1); + bp_pack_value (bp, TYPE_USER_ALIGN (expr), 1); + bp_pack_value (bp, TYPE_READONLY (expr), 1); + unsigned vla_p; + if (in_lto_p) + vla_p = TYPE_LANG_FLAG_0 (TYPE_MAIN_VARIANT (expr)); + else + vla_p = variably_modified_type_p (expr, NULL_TREE); + bp_pack_value (bp, vla_p, 1); + /* We used to stream TYPE_ALIAS_SET == 0 information to let frontends mark + types that are opaque for TBAA. This however did not work as intended, + because TYPE_ALIAS_SET == 0 was regularly lost in type merging. */ + if (RECORD_OR_UNION_TYPE_P (expr)) + { + bp_pack_value (bp, TYPE_TRANSPARENT_AGGR (expr), 1); + bp_pack_value (bp, TYPE_FINAL_P (expr), 1); + /* alias_ptr_types_compatible_p relies on fact that during LTO + types do not get refined from WPA time to ltrans. */ + bp_pack_value (bp, flag_wpa && TYPE_CANONICAL (expr) + ? TYPE_CXX_ODR_P (TYPE_CANONICAL (expr)) + : TYPE_CXX_ODR_P (expr), 1); + } + else if (TREE_CODE (expr) == ARRAY_TYPE) + bp_pack_value (bp, TYPE_NONALIASED_COMPONENT (expr), 1); + if (TREE_CODE (expr) == ARRAY_TYPE || TREE_CODE (expr) == INTEGER_TYPE) + bp_pack_value (bp, TYPE_STRING_FLAG (expr), 1); + if (AGGREGATE_TYPE_P (expr)) + bp_pack_value (bp, TYPE_TYPELESS_STORAGE (expr), 1); + bp_pack_value (bp, TYPE_EMPTY_P (expr), 1); + bp_pack_var_len_unsigned (bp, TYPE_PRECISION (expr)); + bp_pack_var_len_unsigned (bp, TYPE_ALIGN (expr)); +} + + +/* Pack all the non-pointer fields of the TS_BLOCK structure + of expression EXPR into bitpack BP. */ + +static void +pack_ts_block_value_fields (struct output_block *ob, + struct bitpack_d *bp, tree expr) +{ + /* BLOCK_NUMBER is recomputed. */ + /* Stream BLOCK_SOURCE_LOCATION for the limited cases we can handle - those + that represent inlined function scopes. + For the rest them on the floor instead of ICEing in dwarf2out.c. */ + if (inlined_function_outer_scope_p (expr)) + stream_output_location (ob, bp, BLOCK_SOURCE_LOCATION (expr)); + else + stream_output_location (ob, bp, UNKNOWN_LOCATION); +} + +/* Pack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL structure + of expression EXPR into bitpack BP. */ + +static void +pack_ts_translation_unit_decl_value_fields (struct output_block *ob, + struct bitpack_d *bp, tree expr) +{ + bp_pack_string (ob, bp, TRANSLATION_UNIT_LANGUAGE (expr), true); +} + + +/* Pack all the non-pointer fields of the TS_OMP_CLAUSE structure + of expression EXPR into bitpack BP. */ + +static void +pack_ts_omp_clause_value_fields (struct output_block *ob, + struct bitpack_d *bp, tree expr) +{ + stream_output_location (ob, bp, OMP_CLAUSE_LOCATION (expr)); + switch (OMP_CLAUSE_CODE (expr)) + { + case OMP_CLAUSE_DEFAULT: + bp_pack_enum (bp, omp_clause_default_kind, OMP_CLAUSE_DEFAULT_LAST, + OMP_CLAUSE_DEFAULT_KIND (expr)); + break; + case OMP_CLAUSE_SCHEDULE: + bp_pack_enum (bp, omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_LAST, + OMP_CLAUSE_SCHEDULE_KIND (expr)); + break; + case OMP_CLAUSE_DEPEND: + bp_pack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST, + OMP_CLAUSE_DEPEND_KIND (expr)); + break; + case OMP_CLAUSE_MAP: + bp_pack_enum (bp, gomp_map_kind, GOMP_MAP_LAST, + OMP_CLAUSE_MAP_KIND (expr)); + break; + case OMP_CLAUSE_PROC_BIND: + bp_pack_enum (bp, omp_clause_proc_bind_kind, OMP_CLAUSE_PROC_BIND_LAST, + OMP_CLAUSE_PROC_BIND_KIND (expr)); + break; + case OMP_CLAUSE_REDUCTION: + case OMP_CLAUSE_TASK_REDUCTION: + case OMP_CLAUSE_IN_REDUCTION: + bp_pack_enum (bp, tree_code, MAX_TREE_CODES, + OMP_CLAUSE_REDUCTION_CODE (expr)); + break; + default: + break; + } +} + + +/* Pack all the bitfields in EXPR into a bit pack. */ + +void +streamer_write_tree_bitfields (struct output_block *ob, tree expr) +{ + bitpack_d bp = bitpack_create (ob->main_stream); + enum tree_code code; + + code = TREE_CODE (expr); + + /* Note that all these functions are highly sensitive to changes in + the types and sizes of each of the fields being packed. */ + pack_ts_base_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_INT_CST)) + pack_ts_int_cst_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST)) + pack_ts_real_cst_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST)) + pack_ts_fixed_cst_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL)) + stream_output_location (ob, &bp, DECL_SOURCE_LOCATION (expr)); + + if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON)) + pack_ts_decl_common_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)) + pack_ts_decl_wrtl_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)) + pack_ts_decl_with_vis_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL)) + pack_ts_function_decl_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON)) + pack_ts_type_common_value_fields (&bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_EXP)) + { + stream_output_location (ob, &bp, EXPR_LOCATION (expr)); + if (code == MEM_REF + || code == TARGET_MEM_REF) + { + bp_pack_value (&bp, MR_DEPENDENCE_CLIQUE (expr), sizeof (short) * 8); + if (MR_DEPENDENCE_CLIQUE (expr) != 0) + bp_pack_value (&bp, MR_DEPENDENCE_BASE (expr), sizeof (short) * 8); + } + else if (code == CALL_EXPR) + bp_pack_enum (&bp, internal_fn, IFN_LAST, CALL_EXPR_IFN (expr)); + } + + if (CODE_CONTAINS_STRUCT (code, TS_BLOCK)) + pack_ts_block_value_fields (ob, &bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL)) + pack_ts_translation_unit_decl_value_fields (ob, &bp, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION)) + cl_optimization_stream_out (ob, &bp, TREE_OPTIMIZATION (expr)); + + if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR)) + bp_pack_var_len_unsigned (&bp, CONSTRUCTOR_NELTS (expr)); + + if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION) + /* Don't stream these when passing things to a different target. */ + && !lto_stream_offload_p) + cl_target_option_stream_out (ob, &bp, TREE_TARGET_OPTION (expr)); + + if (code == OMP_CLAUSE) + pack_ts_omp_clause_value_fields (ob, &bp, expr); + + streamer_write_bitpack (&bp); +} + + +/* Emit the chain of tree nodes starting at T. OB is the output block + to write to. REF_P is true if chain elements should be emitted + as references. */ + +static void +streamer_write_chain (struct output_block *ob, tree t) +{ + while (t) + { + /* We avoid outputting external vars or functions by reference + to the global decls section as we do not want to have them + enter decl merging. We should not need to do this anymore because + free_lang_data removes them from block scopes. */ + gcc_assert (!VAR_OR_FUNCTION_DECL_P (t) || !DECL_EXTERNAL (t)); + stream_write_tree_ref (ob, t); + + t = TREE_CHAIN (t); + } + + /* Write a sentinel to terminate the chain. */ + stream_write_tree_ref (ob, NULL_TREE); +} + + +/* Write all pointer fields in the TS_COMMON structure of EXPR to output + block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_common_tree_pointers (struct output_block *ob, tree expr) +{ + if (TREE_CODE (expr) != IDENTIFIER_NODE) + stream_write_tree_ref (ob, TREE_TYPE (expr)); +} + + +/* Write all pointer fields in the TS_VECTOR structure of EXPR to output + block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_vector_tree_pointers (struct output_block *ob, tree expr) +{ + /* Note that the number of elements for EXPR has already been emitted + in EXPR's header (see streamer_write_tree_header). */ + unsigned int count = vector_cst_encoded_nelts (expr); + for (unsigned int i = 0; i < count; ++i) + stream_write_tree_ref (ob, VECTOR_CST_ENCODED_ELT (expr, i)); +} + + +/* Write all pointer fields in the TS_POLY_INT_CST structure of EXPR to + output block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_poly_tree_pointers (struct output_block *ob, tree expr) +{ + for (unsigned int i = 0; i < NUM_POLY_INT_COEFFS; ++i) + stream_write_tree_ref (ob, POLY_INT_CST_COEFF (expr, i)); +} + + +/* Write all pointer fields in the TS_COMPLEX structure of EXPR to output + block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_complex_tree_pointers (struct output_block *ob, tree expr) +{ + stream_write_tree_ref (ob, TREE_REALPART (expr)); + stream_write_tree_ref (ob, TREE_IMAGPART (expr)); +} + + +/* Write all pointer fields in the TS_DECL_MINIMAL structure of EXPR + to output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_decl_minimal_tree_pointers (struct output_block *ob, tree expr) +{ + /* Drop names that were created for anonymous entities. */ + if (DECL_NAME (expr) + && TREE_CODE (DECL_NAME (expr)) == IDENTIFIER_NODE + && IDENTIFIER_ANON_P (DECL_NAME (expr))) + stream_write_tree_ref (ob, NULL_TREE); + else + stream_write_tree_ref (ob, DECL_NAME (expr)); + if (TREE_CODE (expr) != TRANSLATION_UNIT_DECL + && ! DECL_CONTEXT (expr)) + stream_write_tree_ref (ob, (*all_translation_units)[0]); + else + stream_write_tree_ref (ob, DECL_CONTEXT (expr)); +} + + +/* Write all pointer fields in the TS_DECL_COMMON structure of EXPR to + output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_decl_common_tree_pointers (struct output_block *ob, tree expr) +{ + stream_write_tree_ref (ob, DECL_SIZE (expr)); + stream_write_tree_ref (ob, DECL_SIZE_UNIT (expr)); + + /* Note, DECL_INITIAL is not handled here. Since DECL_INITIAL needs + special handling in LTO, it must be handled by streamer hooks. */ + + stream_write_tree_ref (ob, DECL_ATTRIBUTES (expr)); + + /* On non-early-LTO enabled targets we claim we compiled with -g0 + but dwarf2out still did its set_decl_origin_self game fooling + itself late. Und that here since we won't have access to the + early generated abstract DIEs. */ + tree ao = DECL_ABSTRACT_ORIGIN (expr); + if (debug_info_level == DINFO_LEVEL_NONE + && ao == expr) + ao = NULL_TREE; + stream_write_tree_ref (ob, ao); + + if ((VAR_P (expr) || TREE_CODE (expr) == PARM_DECL) + && DECL_HAS_VALUE_EXPR_P (expr)) + stream_write_tree_ref (ob, DECL_VALUE_EXPR (expr)); + + if (VAR_P (expr) + && DECL_HAS_DEBUG_EXPR_P (expr)) + stream_write_tree_ref (ob, DECL_DEBUG_EXPR (expr)); +} + + +/* Write all pointer fields in the TS_DECL_NON_COMMON structure of + EXPR to output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_decl_non_common_tree_pointers (struct output_block *, tree) +{ +} + + +/* Write all pointer fields in the TS_DECL_WITH_VIS structure of EXPR + to output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_decl_with_vis_tree_pointers (struct output_block *ob, tree expr) +{ + /* Make sure we don't inadvertently set the assembler name. */ + if (DECL_ASSEMBLER_NAME_SET_P (expr)) + stream_write_tree_ref (ob, DECL_ASSEMBLER_NAME (expr)); + else + stream_write_tree_ref (ob, NULL_TREE); +} + + +/* Write all pointer fields in the TS_FIELD_DECL structure of EXPR to + output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_field_decl_tree_pointers (struct output_block *ob, tree expr) +{ + stream_write_tree_ref (ob, DECL_FIELD_OFFSET (expr)); + stream_write_tree_ref (ob, DECL_BIT_FIELD_TYPE (expr)); + stream_write_tree_ref (ob, DECL_BIT_FIELD_REPRESENTATIVE (expr)); + stream_write_tree_ref (ob, DECL_FIELD_BIT_OFFSET (expr)); +} + + +/* Write all pointer fields in the TS_FUNCTION_DECL structure of EXPR + to output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_function_decl_tree_pointers (struct output_block *ob, tree expr) +{ + /* DECL_STRUCT_FUNCTION is handled by lto_output_function. */ + stream_write_tree_ref (ob, DECL_FUNCTION_PERSONALITY (expr)); + /* Don't stream these when passing things to a different target. */ + if (!lto_stream_offload_p) + stream_write_tree_ref (ob, DECL_FUNCTION_SPECIFIC_TARGET (expr)); + stream_write_tree_ref (ob, DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr)); +} + + +/* Write all pointer fields in the TS_TYPE_COMMON structure of EXPR to + output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_type_common_tree_pointers (struct output_block *ob, tree expr) +{ + stream_write_tree_ref (ob, TYPE_SIZE (expr)); + stream_write_tree_ref (ob, TYPE_SIZE_UNIT (expr)); + stream_write_tree_ref (ob, TYPE_ATTRIBUTES (expr)); + stream_write_tree_ref (ob, TYPE_NAME (expr)); + /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be + reconstructed during fixup. */ + /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists + during fixup. */ + stream_write_tree_ref (ob, TYPE_MAIN_VARIANT (expr)); + stream_write_tree_ref (ob, TYPE_CONTEXT (expr)); + /* TYPE_CANONICAL is re-computed during type merging, so no need + to stream it here. */ + /* Do not stream TYPE_STUB_DECL; it is not needed by LTO but currently + it cannot be freed by free_lang_data without triggering ICEs in + langhooks. */ +} + +/* Write all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR + to output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_type_non_common_tree_pointers (struct output_block *ob, tree expr) +{ + if (TREE_CODE (expr) == ARRAY_TYPE) + stream_write_tree_ref (ob, TYPE_DOMAIN (expr)); + else if (RECORD_OR_UNION_TYPE_P (expr)) + streamer_write_chain (ob, TYPE_FIELDS (expr)); + else if (TREE_CODE (expr) == FUNCTION_TYPE + || TREE_CODE (expr) == METHOD_TYPE) + stream_write_tree_ref (ob, TYPE_ARG_TYPES (expr)); + + if (!POINTER_TYPE_P (expr)) + stream_write_tree_ref (ob, TYPE_MIN_VALUE_RAW (expr)); + stream_write_tree_ref (ob, TYPE_MAX_VALUE_RAW (expr)); +} + + +/* Write all pointer fields in the TS_LIST structure of EXPR to output + block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_list_tree_pointers (struct output_block *ob, tree expr) +{ + stream_write_tree_ref (ob, TREE_PURPOSE (expr)); + stream_write_tree_ref (ob, TREE_VALUE (expr)); + stream_write_tree_ref (ob, TREE_CHAIN (expr)); +} + + +/* Write all pointer fields in the TS_VEC structure of EXPR to output + block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_vec_tree_pointers (struct output_block *ob, tree expr) +{ + int i; + + /* Note that the number of slots for EXPR has already been emitted + in EXPR's header (see streamer_write_tree_header). */ + for (i = 0; i < TREE_VEC_LENGTH (expr); i++) + stream_write_tree_ref (ob, TREE_VEC_ELT (expr, i)); +} + + +/* Write all pointer fields in the TS_EXP structure of EXPR to output + block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_exp_tree_pointers (struct output_block *ob, tree expr) +{ + int i; + + for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++) + stream_write_tree_ref (ob, TREE_OPERAND (expr, i)); + stream_write_tree_ref (ob, TREE_BLOCK (expr)); +} + + +/* Write all pointer fields in the TS_BLOCK structure of EXPR to output + block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_block_tree_pointers (struct output_block *ob, tree expr) +{ + streamer_write_chain (ob, BLOCK_VARS (expr)); + + stream_write_tree_ref (ob, BLOCK_SUPERCONTEXT (expr)); + stream_write_tree_ref (ob, BLOCK_ABSTRACT_ORIGIN (expr)); + + /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information + for early inlined BLOCKs so drop it on the floor instead of ICEing in + dwarf2out.c. */ + + /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO + streaming time. */ + + /* Do not output BLOCK_SUBBLOCKS. Instead on streaming-in this + list is re-constructed from BLOCK_SUPERCONTEXT. */ +} + + +/* Write all pointer fields in the TS_BINFO structure of EXPR to output + block OB. If REF_P is true, write a reference to EXPR's pointer + fields. */ + +static void +write_ts_binfo_tree_pointers (struct output_block *ob, tree expr) +{ + unsigned i; + tree t; + + /* Note that the number of BINFO slots has already been emitted in + EXPR's header (see streamer_write_tree_header) because this length + is needed to build the empty BINFO node on the reader side. */ + FOR_EACH_VEC_ELT (*BINFO_BASE_BINFOS (expr), i, t) + stream_write_tree_ref (ob, t); + stream_write_tree_ref (ob, NULL_TREE); + + stream_write_tree_ref (ob, BINFO_OFFSET (expr)); + stream_write_tree_ref (ob, BINFO_VTABLE (expr)); + + /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX, + BINFO_BASE_ACCESSES and BINFO_VPTR_INDEX; these are used by C++ FE only. */ +} + + +/* Write all pointer fields in the TS_CONSTRUCTOR structure of EXPR to + output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_constructor_tree_pointers (struct output_block *ob, tree expr) +{ + unsigned i; + tree index, value; + + FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (expr), i, index, value) + { + stream_write_tree_ref (ob, index); + stream_write_tree_ref (ob, value); + } +} + + +/* Write all pointer fields in the TS_OMP_CLAUSE structure of EXPR + to output block OB. If REF_P is true, write a reference to EXPR's + pointer fields. */ + +static void +write_ts_omp_clause_tree_pointers (struct output_block *ob, tree expr) +{ + int i; + for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++) + stream_write_tree_ref (ob, OMP_CLAUSE_OPERAND (expr, i)); + switch (OMP_CLAUSE_CODE (expr)) + { + case OMP_CLAUSE_REDUCTION: + case OMP_CLAUSE_TASK_REDUCTION: + case OMP_CLAUSE_IN_REDUCTION: + /* We don't stream these right now, handle it if streaming + of them is needed. */ + gcc_assert (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (expr) == NULL); + gcc_assert (OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (expr) == NULL); + break; + default: + break; + } + stream_write_tree_ref (ob, OMP_CLAUSE_CHAIN (expr)); +} + + +/* Write all pointer fields in EXPR to output block OB. If REF_P is true, + the leaves of EXPR are emitted as references. */ + +void +streamer_write_tree_body (struct output_block *ob, tree expr) +{ + enum tree_code code; + + lto_stats.num_tree_bodies_output++; + + code = TREE_CODE (expr); + + if (CODE_CONTAINS_STRUCT (code, TS_TYPED)) + write_ts_common_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_VECTOR)) + write_ts_vector_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_POLY_INT_CST)) + write_ts_poly_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX)) + write_ts_complex_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL)) + write_ts_decl_minimal_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON)) + write_ts_decl_common_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON)) + write_ts_decl_non_common_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)) + write_ts_decl_with_vis_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL)) + write_ts_field_decl_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL)) + write_ts_function_decl_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON)) + write_ts_type_common_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON)) + write_ts_type_non_common_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_LIST)) + write_ts_list_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_VEC)) + write_ts_vec_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_EXP)) + write_ts_exp_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_BLOCK)) + write_ts_block_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) + write_ts_binfo_tree_pointers (ob, expr); + + if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR)) + write_ts_constructor_tree_pointers (ob, expr); + + if (code == OMP_CLAUSE) + write_ts_omp_clause_tree_pointers (ob, expr); +} + + +/* Emit header information for tree EXPR to output block OB. The header + contains everything needed to instantiate an empty skeleton for + EXPR on the reading side. IX is the index into the streamer cache + where EXPR is stored. */ + +void +streamer_write_tree_header (struct output_block *ob, tree expr) +{ + enum LTO_tags tag; + enum tree_code code; + + if (streamer_dump_file) + { + print_node_brief (streamer_dump_file, " Streaming header of ", + expr, 4); + fprintf (streamer_dump_file, " to %s\n", + lto_section_name[ob->section_type]); + } + + /* We should not see any tree nodes not handled by the streamer. */ + code = TREE_CODE (expr); + + /* The header of a tree node consists of its tag, the size of + the node, and any other information needed to instantiate + EXPR on the reading side (such as the number of slots in + variable sized nodes). */ + tag = lto_tree_code_to_tag (code); + streamer_write_record_start (ob, tag); + + /* The text in strings and identifiers are completely emitted in + the header. */ + if (CODE_CONTAINS_STRUCT (code, TS_STRING)) + streamer_write_string_cst (ob, ob->main_stream, expr); + else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER)) + write_identifier (ob, ob->main_stream, expr); + else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR)) + { + bitpack_d bp = bitpack_create (ob->main_stream); + bp_pack_value (&bp, VECTOR_CST_LOG2_NPATTERNS (expr), 8); + bp_pack_value (&bp, VECTOR_CST_NELTS_PER_PATTERN (expr), 8); + streamer_write_bitpack (&bp); + } + else if (CODE_CONTAINS_STRUCT (code, TS_VEC)) + streamer_write_hwi (ob, TREE_VEC_LENGTH (expr)); + else if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) + streamer_write_uhwi (ob, BINFO_N_BASE_BINFOS (expr)); + else if (TREE_CODE (expr) == CALL_EXPR) + streamer_write_uhwi (ob, call_expr_nargs (expr)); + else if (TREE_CODE (expr) == OMP_CLAUSE) + streamer_write_uhwi (ob, OMP_CLAUSE_CODE (expr)); + else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST)) + { + gcc_checking_assert (TREE_INT_CST_NUNITS (expr)); + streamer_write_uhwi (ob, TREE_INT_CST_NUNITS (expr)); + streamer_write_uhwi (ob, TREE_INT_CST_EXT_NUNITS (expr)); + } +} + + +/* Emit the integer constant CST to output block OB. If REF_P is true, + CST's type will be emitted as a reference. */ + +void +streamer_write_integer_cst (struct output_block *ob, tree cst) +{ + int i; + int len = TREE_INT_CST_NUNITS (cst); + gcc_assert (!TREE_OVERFLOW (cst)); + if (streamer_dump_file) + { + print_node_brief (streamer_dump_file, " Streaming integer ", + cst, 4); + fprintf (streamer_dump_file, "\n"); + } + streamer_write_record_start (ob, LTO_integer_cst); + stream_write_tree_ref (ob, TREE_TYPE (cst)); + /* We're effectively streaming a non-sign-extended wide_int here, + so there's no need to stream TREE_INT_CST_EXT_NUNITS or any + array members beyond LEN. We'll recreate the tree from the + wide_int and the type. */ + streamer_write_uhwi (ob, len); + for (i = 0; i < len; i++) + streamer_write_hwi (ob, TREE_INT_CST_ELT (cst, i)); +} |