| /* Routines for emitting trees to a file stream. |
| |
| Copyright (C) 2011-2021 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); |
| 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); |
| 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, DECL_IS_OPERATOR_NEW_P (expr), 1); |
| 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)); |
| } |