#include "config.h"#include "system.h"#include "coretypes.h"#include "backend.h"#include "target.h"#include "rtl.h"#include "tree.h"#include "predict.h"#include "memmodel.h"#include "tm_p.h"#include "stringpool.h"#include "regs.h"#include "emit-rtl.h"#include "cgraph.h"#include "diagnostic-core.h"#include "fold-const.h"#include "stor-layout.h"#include "varasm.h"#include "version.h"#include "flags.h"#include "stmt.h"#include "expr.h"#include "expmed.h"#include "optabs.h"#include "output.h"#include "langhooks.h"#include "debug.h"#include "common/common-target.h"#include "attribs.h"#include "asan.h"#include "rtl-iter.h"#include "file-prefix-map.h"#include "alloc-pool.h"#include "toplev.h"#include "opts.h"#include "recog.h"#include "gimple-expr.h"#include "gt-varasm.h"
Data Structures | |
| struct | section_hasher |
| struct | object_block_hasher |
| class | addr_const |
| class | constant_descriptor_rtx |
| struct | const_rtx_desc_hasher |
| struct | rtx_constant_pool |
| struct | constant_descriptor_rtx_data |
| struct | const_rtx_data_hasher |
| struct | oc_outer_state |
| struct | oc_local_state |
| struct | tm_clone_hasher |
| struct | tm_alias_pair |
Macros | |
| #define | n_deferred_constants (crtl->varasm.deferred_constants) |
| #define | IN_NAMED_SECTION(DECL) |
| #define | CONSTANT_POOL_BEFORE_FUNCTION 1 |
| #define | TLS_SECTION_ASM_FLAG 'T' |
Macro Definition Documentation
◆ CONSTANT_POOL_BEFORE_FUNCTION
| #define CONSTANT_POOL_BEFORE_FUNCTION 1 |
CONSTANT_POOL_BEFORE_FUNCTION may be defined as an expression with a nonzero value if the constant pool should be output before the start of the function, or a zero value if the pool should output after the end of the function. The default is to put it before the start.
Referenced by assemble_end_function(), and assemble_start_function().
◆ IN_NAMED_SECTION
| #define IN_NAMED_SECTION | ( | DECL | ) |
Return a nonzero value if DECL has a section attribute.
Referenced by get_variable_section().
◆ n_deferred_constants
| #define n_deferred_constants (crtl->varasm.deferred_constants) |
Referenced by mark_constant_pool(), mark_constants_in_pattern(), and maybe_output_constant_def_contents().
◆ TLS_SECTION_ASM_FLAG
| #define TLS_SECTION_ASM_FLAG 'T' |
Referenced by default_elf_asm_named_section().
Function Documentation
◆ add_constant_to_table()
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static |
Subroutine of output_constant_def and tree_output_constant_def: Add a constant to the hash table that tracks which constants already have labels.
References build_constant_desc(), const_desc_htab, const_hash_1(), exp(), gcc_assert, constant_descriptor_tree::hash, output_addressed_constants(), and constant_descriptor_tree::value.
Referenced by output_constant_def(), and tree_output_constant_def().
◆ align_variable()
Compute the alignment of variable specified by DECL. DONT_OUTPUT_DATA is from assemble_variable.
References BITS_PER_WORD, DECL_ALIGN, decl_binds_to_current_def_p(), DECL_INITIAL, DECL_SIZE, DECL_THREAD_LOCAL_P, DECL_USER_ALIGN, DECL_VIRTUAL_P, error(), error_mark_node, MAX, MAX_OFILE_ALIGNMENT, SET_DECL_ALIGN, targetm, TREE_CODE, TREE_TYPE, and TYPE_ALIGN.
Referenced by varpool_node::analyze(), assemble_variable(), build_constant_desc(), and get_block_for_decl().
◆ array_size_for_constructor()
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static |
Subroutine of output_constructor, used for computing the size of arrays of unspecified length. VAL must be a CONSTRUCTOR of an array type with an unspecified upper bound.
References bitsize_int, CONSTRUCTOR_ELTS, wi::fits_uhwi_p(), FOR_EACH_CONSTRUCTOR_ELT, gcc_assert, i, NULL_TREE, RAW_DATA_LENGTH, size_binop, wi::to_offset(), TREE_CODE, tree_int_cst_lt(), TREE_OPERAND, TREE_STRING_LENGTH, TREE_TYPE, TYPE_DOMAIN, TYPE_MIN_VALUE, and TYPE_SIZE_UNIT.
Referenced by output_constructor_regular_field().
◆ assemble_addr_to_section()
Write the address of the entity given by SYMBOL to SEC.
References assemble_align(), assemble_integer(), POINTER_SIZE, POINTER_SIZE_UNITS, and switch_to_section().
Referenced by default_elf_fini_array_asm_out_destructor(), default_elf_init_array_asm_out_constructor(), default_named_section_asm_out_constructor(), and default_named_section_asm_out_destructor().
◆ assemble_alias()
Emit an assembler directive to make the symbol for DECL an alias to the symbol for TARGET.
References symtab_node::alias, alias_pairs, symtab_node::decl, DECL_ASSEMBLER_NAME, DECL_ATTRIBUTES, DECL_SOURCE_LOCATION, DECL_WEAK, do_assemble_alias(), error(), error_at(), EXPANSION, find_decl(), gcc_unreachable, cgraph_node::get_create(), varpool_node::get_create(), symbol_table::global_info_ready, lookup_attribute(), NULL, symbol_table::state, symtab, TARGET_SUPPORTS_ALIASES, TREE_ASM_WRITTEN, TREE_CODE, TREE_PUBLIC, TREE_USED, ultimate_transparent_alias_target(), and vec_safe_push().
Referenced by asan_add_global(), and rest_of_decl_compilation().
◆ assemble_align()
| void assemble_align | ( | unsigned int | align | ) |
Assemble an alignment pseudo op for an ALIGN-bit boundary.
References asm_out_file, and floor_log2().
Referenced by assemble_addr_to_section(), assemble_start_function(), default_print_patchable_function_entry(), dump_tm_clone_pairs(), dw2_asm_output_encoded_addr_rtx(), output_constant_pool_1(), output_object_block(), and output_one_function_exception_table().
◆ assemble_asm()
| void assemble_asm | ( | tree | asm_str | ) |
Output a string of literal assembler code for an `asm' keyword used between functions.
References ALL_ALTERNATIVES, app_enable(), ASM_INPUTS, asm_operand_ok(), asm_out_file, ASM_OUTPUTS, ASM_STRING, build_fold_addr_expr, constrain_operands(), constraints, recog_data_d::constraints, cse_not_expected, error(), error_mark_node, expand_expr(), EXPAND_INITIALIZER, EXPR_LOCATION, gen_rtx_MEM(), i, input_location, insn_noperands, recog_data_d::is_asm, is_gimple_addressable(), list_length(), make_insn_raw(), recog_data_d::n_alternatives, recog_data_d::n_operands, NULL, NULL_RTX, OP_IN, OP_OUT, recog_data_d::operand, recog_data_d::operand_loc, recog_data_d::operand_mode, recog_data_d::operand_type, output_addressed_constants(), output_asm_insn(), parse_input_constraint(), parse_output_constraint(), recog_data, reload_completed, this_is_asm_operands, TREE_CHAIN, TREE_CODE, TREE_OPERAND, TREE_PURPOSE, TREE_STRING_POINTER, TREE_TYPE, TREE_VALUE, TYPE_MODE, warning(), and which_alternative.
Referenced by cgraph_order_sort::process().
◆ assemble_constant_contents()
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static |
Subroutine of output_constant_def_contents. Output the definition of constant EXP, which is pointed to by label LABEL. ALIGN is the constant's alignment in bits.
References asm_out_file, exp(), get_constant_size(), output_constant(), and targetm.
Referenced by output_constant_def_contents(), and output_object_block().
◆ assemble_end_function()
| void assemble_end_function | ( | tree | decl, |
| const char * | fnname ) |
Output assembler code associated with defining the size of the function. DECL describes the function. NAME is the function's name.
References asm_out_file, ASM_OUTPUT_LABEL, cold_function_name, CONSTANT_POOL_BEFORE_FUNCTION, crtl, first_function_block_is_cold, function_section(), IDENTIFIER_POINTER, in_section, NULL_TREE, output_constant_pool(), switch_to_section(), text_section, and unlikely_text_section().
Referenced by rest_of_handle_final().
◆ assemble_external()
| void assemble_external | ( | tree | decl | ) |
Output something to declare an external symbol to the assembler, and qualifiers such as weakness. (Most assemblers don't need extern declaration, so we normally output nothing.) Do nothing if DECL is not external.
References hash_set< KeyId, Lazy, Traits >::add(), asm_out_file, DECL_ATTRIBUTES, DECL_EXTERNAL, DECL_P, DECL_WEAK, EXPANSION, FINISHED, gcc_assert, lookup_attribute(), NULL, NULL_TREE, pending_assemble_externals, TARGET_SUPPORTS_WEAK, tree_cons(), TREE_PUBLIC, TREE_STATIC, value_member(), and weak_decls.
Referenced by final_scan_insn_1(), mark_symbol_refs_as_used(), and output_addr_const().
◆ assemble_external_libcall()
| void assemble_external_libcall | ( | rtx | fun | ) |
Similar, for calling a library function FUN.
References gcc_assert, gen_rtx_EXPR_LIST(), get_identifier(), symtab_node::name(), pending_libcall_symbols, SYMBOL_REF_USED, targetm, and XSTR.
Referenced by emit_library_call_value_1(), output_call_frame_info(), output_function_exception_table(), and sjlj_emit_function_enter().
◆ assemble_function_label_final()
| void assemble_function_label_final | ( | void | ) |
Finish outputting function label. Needs to be called when outputting function label without using assemble_function_label_raw ().
References asan_function_start(), cfun, first_function_block_is_cold, in_cold_section_p, and SANITIZE_ADDRESS.
Referenced by assemble_function_label_raw().
◆ assemble_function_label_raw()
| void assemble_function_label_raw | ( | FILE * | file, |
| const char * | name ) |
Output function label, possibly with accompanying metadata. No additional code or data is output after the label.
References ASM_OUTPUT_LABEL, assemble_function_label_final(), and symtab_node::name().
◆ assemble_integer()
Assemble the integer constant X into an object of SIZE bytes. ALIGN is the alignment of the integer in bits. Return 1 if we were able to output the constant, otherwise 0. We must be able to output the constant, if FORCE is nonzero.
References assemble_integer(), gcc_assert, GET_CODE, GET_MODE, GET_MODE_CLASS, i, MIN, mode_for_size(), opt_mode< T >::require(), simplify_subreg(), and targetm.
Referenced by assemble_addr_to_section(), assemble_integer(), assemble_real(), assemble_zeros(), dump_tm_clone_pairs(), output_constant(), output_constant_pool_2(), output_constructor(), output_constructor_bitfield(), and output_constructor_regular_field().
◆ assemble_integer_with_op()
| void assemble_integer_with_op | ( | const char * | op, |
| rtx | x ) |
Use directive OP to assemble an integer object X. Print OP at the start of the line, followed immediately by the value of X.
References asm_out_file, fputc(), and output_addr_const().
Referenced by default_assemble_integer().
◆ assemble_label()
| void assemble_label | ( | FILE * | file, |
| const char * | name ) |
Assemble a label named NAME.
References ASM_OUTPUT_LABEL, and symtab_node::name().
Referenced by default_asm_declare_constant_name().
◆ assemble_name()
| void assemble_name | ( | FILE * | file, |
| const char * | name ) |
Like assemble_name_raw, but should be used when NAME might refer to an entity that is also represented as a tree (like a function or variable). If NAME does refer to such an entity, that entity will be marked as referenced.
References assemble_name_raw(), assemble_name_resolve(), and symtab_node::name().
Referenced by default_assemble_visibility(), dw2_asm_output_delta_uleb128(), dw2_asm_output_symname_uleb128(), output_addr_const(), and output_asm_label().
◆ assemble_name_raw()
| void assemble_name_raw | ( | FILE * | file, |
| const char * | name ) |
Output to FILE (an assembly file) a reference to NAME. If NAME starts with a *, the rest of NAME is output verbatim. Otherwise NAME is transformed in a target-specific way (usually by the addition of an underscore).
References ASM_OUTPUT_LABELREF, and symtab_node::name().
Referenced by assemble_name(), default_elf_asm_named_section(), and default_print_patchable_function_entry().
◆ assemble_name_resolve()
| const char * assemble_name_resolve | ( | const char * | name | ) |
Return NAME that should actually be emitted, looking through transparent aliases. If NAME refers to an entity that is also represented as a tree (like a function or variable), mark the entity as referenced.
References gcc_assert, IDENTIFIER_POINTER, mark_referenced(), maybe_get_identifier(), symtab_node::name(), targetm, TREE_CHAIN, and ultimate_transparent_alias_target().
Referenced by assemble_name().
◆ assemble_noswitch_variable()
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static |
Assemble DECL given that it belongs in SECTION_NOSWITCH section SECT. NAME is the name of DECL's SYMBOL_REF.
References asan_protect_global(), asan_red_zone_size(), noswitch_section::callback, DECL_SIZE_UNIT, error(), symtab_node::name(), section::noswitch, SANITIZE_ADDRESS, and tree_to_uhwi().
Referenced by assemble_variable().
◆ assemble_real()
| void assemble_real | ( | REAL_VALUE_TYPE | d, |
| scalar_float_mode | mode, | ||
| unsigned int | align, | ||
| bool | reverse ) |
Assemble the floating-point constant D into an object of size MODE. ALIGN is the alignment of the constant in bits. If REVERSE is true, D is output in reverse storage order.
References assemble_integer(), CEIL, flip_storage_order(), GEN_INT, gen_int_mode(), GET_MODE_SIZE(), i, MIN, min_align(), real_to_target(), and sext_hwi().
Referenced by output_constant(), and output_constant_pool_2().
◆ assemble_start_function()
| void assemble_start_function | ( | tree | decl, |
| const char * | fnname ) |
Output assembler code for the constant pool of a function and associated with defining the name of the function. DECL describes the function. NAME is the function's name. For the constant pool, we use the current constant pool data.
References align_functions, app_disable(), asm_out_file, ASM_OUTPUT_FUNCTION_LABEL, ASM_OUTPUT_LABEL, assemble_align(), BB_PARTITION, gcc_debug_hooks::begin_function, cfun, cold_function_name, const_labelno, CONSTANT_POOL_BEFORE_FUNCTION, crtl, current_function_decl, debug_hooks, DECL_ATTRIBUTES, DECL_IGNORED_P, DECL_PRESERVE_P, DECL_USER_ALIGN, symtab_node::definition_alignment(), ENTRY_BLOCK_PTR_FOR_FN, first_function_block_is_cold, floor_log2(), function_section(), symtab_node::get(), ggc_strdup, globalize_decl(), in_cold_section_p, lookup_attribute(), MAX, maybe_assemble_visibility(), notice_global_symbol(), NULL, NULL_TREE, optimize_function_for_speed_p(), output_constant_pool(), saw_no_split_stack, switch_to_section(), targetm, text_section, TREE_PUBLIC, and unlikely_text_section().
Referenced by rest_of_handle_final().
◆ assemble_static_space()
| rtx assemble_static_space | ( | unsigned HOST_WIDE_INT | size | ) |
Allocate SIZE bytes writable static space with a gensym name and return an RTX to refer to its address.
References asm_out_file, const_labelno, ggc_strdup, symtab_node::name(), NULL_TREE, SYMBOL_FLAG_LOCAL, and SYMBOL_REF_FLAGS.
Referenced by expand_function_start().
◆ assemble_string()
| void assemble_string | ( | const char * | p, |
| int | size ) |
Assemble a string constant with the specified C string as contents.
References asm_out_file, and ASM_OUTPUT_ASCII.
Referenced by lhd_append_data(), output_constant(), and output_constructor_regular_field().
◆ assemble_trampoline_template()
| rtx assemble_trampoline_template | ( | void | ) |
◆ assemble_undefined_decl()
| void assemble_undefined_decl | ( | tree | decl | ) |
Write out assembly for the variable DECL, which is not defined in the current translation unit.
References asm_out_file, DECL_RTL, symtab_node::name(), targetm, XEXP, and XSTR.
Referenced by symbol_table::output_variables(), and cgraph_order_sort::process().
◆ assemble_variable()
| void assemble_variable | ( | tree | decl, |
| int | top_level, | ||
| int | at_end, | ||
| int | dont_output_data ) |
Assemble everything that is needed for a variable or function declaration. Not used for automatic variables, and not used for function definitions. Should not be called for variables of incomplete structure type. TOP_LEVEL is nonzero if this variable has file scope. AT_END is nonzero if this is the special handling, at end of compilation, to define things that have had only tentative definitions. DONT_OUTPUT_DATA if nonzero means don't actually output the initial value (that will be done by the caller).
References align_variable(), app_disable(), asan_protect_global(), ASAN_RED_ZONE_SIZE, asan_red_zone_size(), asm_out_file, assemble_noswitch_variable(), assemble_variable_contents(), assemble_zeros(), section::common, DECL_ALIGN, DECL_EXTERNAL, DECL_IN_TEXT_SECTION, DECL_INITIAL, DECL_NAME, DECL_PRESERVE_P, DECL_RTL, DECL_RTL_SET_P, DECL_SIZE, DECL_SIZE_UNIT, DECL_THREAD_LOCAL_P, error(), error_mark_node, section_common::flags, floor_log2(), gcc_assert, gcc_checking_assert, GET_CODE, get_variable_align(), get_variable_section(), globalize_decl(), handle_vtv_comdat_section(), last_assemble_variable_decl, layout_decl(), MAX, maybe_assemble_visibility(), MEM_P, named_section::name, symtab_node::name(), section::named, notice_global_symbol(), output_addressed_constants(), output_constant_def_contents(), place_block_symbol(), REG_P, SANITIZE_ADDRESS, SECTION_CODE, SECTION_COMMON, SECTION_MERGE, SECTION_NAMED, SECTION_NOSWITCH, SECTION_STRINGS, SECTION_STYLE, SET_DECL_ALIGN, set_mem_align(), switch_to_section(), SYMBOL_REF_BLOCK, SYMBOL_REF_DECL, SYMBOL_REF_HAS_BLOCK_INFO_P, targetm, TREE_ASM_WRITTEN, TREE_CONSTANT_POOL_ADDRESS_P, TREE_PUBLIC, tree_to_uhwi(), valid_constant_size_p(), VAR_P, XEXP, and XSTR.
Referenced by varpool_node::assemble_decl(), and dw2_output_indirect_constant_1().
◆ assemble_variable_contents()
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static |
A subroutine of assemble_variable. Output the label and contents of DECL, whose address is a SYMBOL_REF with name NAME. DONT_OUTPUT_DATA is as for assemble_variable.
References asm_out_file, ASM_OUTPUT_LABEL, assemble_zeros(), symtab_node::decl, DECL_INITIAL, DECL_SIZE_UNIT, error_mark_node, gcc_assert, get_variable_align(), initializer_zerop(), last_assemble_variable_decl, symtab_node::name(), output_constant(), targetm, and tree_to_uhwi().
Referenced by assemble_variable(), and output_object_block().
◆ assemble_zeros()
| void assemble_zeros | ( | unsigned HOST_WIDE_INT | size | ) |
Assemble code to leave SIZE bytes of zeros.
References asm_out_file, assemble_integer(), section::common, const0_rtx, section_common::flags, i, in_section, and SECTION_CODE.
Referenced by assemble_variable(), assemble_variable_contents(), output_constant(), output_constant_def_contents(), output_constructor(), output_constructor_array_range(), output_constructor_bitfield(), output_constructor_regular_field(), and output_object_block().
◆ bss_initializer_p()
| bool bss_initializer_p | ( | const_tree | decl, |
| bool | named ) |
Return true if DECL's initializer is suitable for a BSS section.
References DECL_COMMON, DECL_INITIAL, DECL_PERSISTENT_P, error_mark_node, initializer_zerop(), NULL, and TREE_READONLY.
Referenced by categorize_decl_for_section(), and get_variable_section().
◆ build_constant_desc()
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static |
Subroutine of output_constant_def: No constant equal to EXP is known to have been output. Make a constant descriptor to enter EXP in the hash table. Assign the label number and construct RTL to refer to the constant's location in memory. Caller is responsible for updating the hash table.
References align_variable(), build_decl(), const_labelno, create_block_symbol(), DECL_ALIGN, DECL_ARTIFICIAL, DECL_IGNORED_P, DECL_IN_CONSTANT_POOL, DECL_INITIAL, DECL_MODE, symtab_node::definition_alignment(), exp(), gen_const_mem(), symtab_node::get(), get_block_for_section(), get_constant_section(), get_identifier(), GET_MODE_ALIGNMENT, ggc_alloc(), ggc_strdup, optab_handler(), constant_descriptor_tree::rtl, RTX_FLAG, SET_DECL_ALIGN, set_mem_alias_set(), set_mem_align(), SET_SYMBOL_REF_DECL, SYMBOL_FLAG_LOCAL, SYMBOL_REF_FLAGS, targetm, TREE_ADDRESSABLE, TREE_CODE, TREE_CONSTANT_POOL_ADDRESS_P, TREE_READONLY, TREE_STATIC, TREE_TYPE, TYPE_MODE, UNKNOWN_LOCATION, use_object_blocks_p(), constant_descriptor_tree::value, and VAR_P.
Referenced by add_constant_to_table().
◆ categorize_decl_for_section()
| enum section_category categorize_decl_for_section | ( | const_tree | decl, |
| int | reloc ) |
References asan_protect_global(), bss_initializer_p(), CONST_CAST_TREE, DECL_INITIAL, DECL_MERGEABLE, DECL_THREAD_LOCAL_P, initializer_zerop(), NULL, SANITIZE_ADDRESS, SECCAT_BSS, SECCAT_DATA, SECCAT_DATA_REL, SECCAT_DATA_REL_LOCAL, SECCAT_DATA_REL_RO, SECCAT_DATA_REL_RO_LOCAL, SECCAT_RODATA, SECCAT_RODATA_MERGE_CONST, SECCAT_RODATA_MERGE_STR, SECCAT_RODATA_MERGE_STR_INIT, SECCAT_SBSS, SECCAT_SDATA, SECCAT_SRODATA, SECCAT_TBSS, SECCAT_TDATA, SECCAT_TEXT, targetm, TREE_CODE, TREE_CONSTANT, TREE_READONLY, use_blocks_for_decl_p(), use_object_blocks_p(), and VAR_P.
Referenced by decl_readonly_section(), default_elf_select_section(), default_section_type_flags(), default_unique_section(), and get_section_name().
◆ change_symbol_block()
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static |
Make sure block symbol SYMBOL is in block BLOCK.
References gcc_assert, SYMBOL_REF_BLOCK, and SYMBOL_REF_BLOCK_OFFSET.
Referenced by make_decl_rtl().
◆ check_string_literal()
Check if a STRING_CST fits into the field. Tolerate only the case when the NUL termination does not fit into the field.
References TREE_STRING_LENGTH, tree_to_uhwi(), TREE_TYPE, and TYPE_SIZE_UNIT.
Referenced by output_constant().
◆ compare_constant()
Compare t1 and t2, and return true only if they are known to result in the same bit pattern on output.
References addr_const::base, CASE_CONVERT, CODE_LABEL_NUMBER, compare_constant(), CONSTRUCTOR_ELTS, count, decode_addr_const(), FIXED_VALUES_IDENTICAL, gcc_unreachable, GET_CODE, i, constructor_elt::index, int_size_in_bytes(), label_ref_label(), NULL_TREE, addr_const::offset, RAW_DATA_LENGTH, RAW_DATA_POINTER, real_identical(), TREE_CODE, TREE_FIXED_CST, TREE_IMAGPART, tree_int_cst_equal(), TREE_OPERAND, TREE_REAL_CST, TREE_REALPART, TREE_STRING_LENGTH, TREE_STRING_POINTER, TREE_TYPE, TYPE_MODE, TYPE_PRECISION, TYPE_REVERSE_STORAGE_ORDER, constructor_elt::value, vec_safe_length(), VECTOR_CST_ENCODED_ELT, vector_cst_encoded_nelts(), VECTOR_CST_NELTS_PER_PATTERN, VECTOR_CST_NPATTERNS, and XSTR.
Referenced by compare_constant(), and tree_descriptor_hasher::equal().
◆ compute_reloc_for_constant()
| int compute_reloc_for_constant | ( | tree | exp | ) |
Determine what kind of relocations EXP may need.
References CASE_CONVERT, compute_reloc_for_constant(), CONSTRUCTOR_ELTS, exp(), FOR_EACH_CONSTRUCTOR_VALUE, handled_component_p(), targetm, TREE_CODE, and TREE_OPERAND.
Referenced by compute_reloc_for_constant(), compute_reloc_for_var(), and get_constant_section().
◆ compute_reloc_for_rtx()
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static |
Like compute_reloc_for_constant, except for an RTX. The return value is a mask for which bit 1 indicates a global relocation, and bit 0 indicates a local relocation. Used by default_select_rtx_section and default_elf_select_rtx_section.
References ALL, compute_reloc_for_rtx_1(), FOR_EACH_SUBRTX, and GET_CODE.
Referenced by default_elf_select_rtx_section(), and default_select_rtx_section().
◆ compute_reloc_for_rtx_1()
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static |
Subroutine of compute_reloc_for_rtx for leaf rtxes.
References GET_CODE, and SYMBOL_REF_LOCAL_P.
Referenced by compute_reloc_for_rtx().
◆ compute_reloc_for_var()
| int compute_reloc_for_var | ( | tree | decl | ) |
Compute reloc for get_variable_section. The return value is a mask for which bit 1 indicates a global relocation, and bit 0 indicates a local relocation.
References compute_reloc_for_constant(), contains_pointers_p(), DECL_INITIAL, error_mark_node, and TREE_TYPE.
Referenced by get_variable_section().
◆ const_hash_1()
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static |
References addr_const::base, CASE_CONVERT, CODE_LABEL_NUMBER, poly_int< N, C >::coeffs, const_hash_1(), CONSTANT_CLASS_P, CONSTRUCTOR_ELTS, count, decode_addr_const(), exp(), fixed_hash(), FOR_EACH_CONSTRUCTOR_VALUE, gcc_unreachable, GET_CODE, i, int_size_in_bytes(), label_ref_label(), addr_const::offset, RAW_DATA_LENGTH, RAW_DATA_POINTER, real_hash(), TREE_CODE, TREE_FIXED_CST_PTR, TREE_IMAGPART, TREE_INT_CST_ELT, TREE_INT_CST_NUNITS, TREE_OPERAND, TREE_REAL_CST_PTR, TREE_REALPART, TREE_STRING_LENGTH, TREE_STRING_POINTER, TREE_TYPE, VECTOR_CST_ENCODED_ELT, vector_cst_encoded_nelts(), VECTOR_CST_NELTS_PER_PATTERN, VECTOR_CST_NPATTERNS, and XSTR.
Referenced by add_constant_to_table(), const_hash_1(), and lookup_constant_def().
◆ const_rtx_hash()
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static |
Compute a hash value for X, which should be a constant.
References ALL, const_rtx_hash_1(), and FOR_EACH_SUBRTX.
Referenced by force_const_mem().
◆ const_rtx_hash_1()
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static |
Hash one component of a constant.
References CHAR_BIT, CODE_LABEL_NUMBER, CONST_DOUBLE_HIGH, CONST_DOUBLE_LOW, CONST_DOUBLE_REAL_VALUE, CONST_FIXED_VALUE, CONST_WIDE_INT_ELT, CONST_WIDE_INT_NUNITS, fixed_hash(), GET_CODE, GET_MODE, i, INTVAL, label_ref_label(), constant_descriptor_rtx::mode, real_hash(), TARGET_SUPPORTS_WIDE_INT, XINT, and XSTR.
Referenced by const_rtx_hash().
◆ constant_descriptor_rtx_data_cmp()
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static |
qsort callback to sort constant_descriptor_rtx_data * vector by decreasing size.
References gcc_assert, constant_descriptor_rtx_data::hash, and constant_descriptor_rtx_data::size.
Referenced by optimize_constant_pool().
◆ constant_pool_empty_p()
| bool constant_pool_empty_p | ( | void | ) |
◆ constant_pool_htab()
| hash_table< tree_descriptor_hasher > * constant_pool_htab | ( | void | ) |
◆ constructor_static_from_elts_p()
| bool constructor_static_from_elts_p | ( | const_tree | ctor | ) |
Whether a constructor CTOR is a valid static constant initializer if all its elements are. This used to be internal to initializer_constant_valid_p and has been exposed to let other functions like categorize_ctor_elements evaluate the property while walking a constructor for other purposes.
References TREE_CODE, TREE_CONSTANT, and TREE_TYPE.
Referenced by categorize_ctor_elements_1(), and initializer_constant_valid_p_1().
◆ contains_pointers_p()
Return true if type TYPE contains any pointers.
References contains_pointers_p(), DECL_CHAIN, fields, TREE_CODE, TREE_TYPE, and TYPE_FIELDS.
Referenced by compute_reloc_for_var(), and contains_pointers_p().
◆ create_block_symbol()
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static |
Create a symbol with label LABEL and place it at byte offset OFFSET in BLOCK. OFFSET can be negative if the symbol's offset is not yet known. LABEL must be a garbage-collected string.
References block_symbol::block, ggc_internal_alloc(), offset, PUT_CODE, PUT_MODE(), RTX_HDR_SIZE, object_block::size, SYMBOL_FLAG_HAS_BLOCK_INFO, SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET, SYMBOL_REF_FLAGS, and XSTR.
Referenced by build_constant_desc(), force_const_mem(), get_section_anchor(), and make_decl_rtl().
◆ create_constant_pool()
|
static |
Create and return a new rtx constant pool.
References rtx_constant_pool::const_rtx_htab, hash_table< Descriptor, Lazy, Allocator >::create_ggc(), rtx_constant_pool::first, ggc_alloc(), rtx_constant_pool::last, NULL, and rtx_constant_pool::offset.
Referenced by init_varasm_once(), and init_varasm_status().
◆ current_function_section()
| section * current_function_section | ( | void | ) |
Return the section for the current function, take IN_COLD_SECTION_P into account.
References current_function_decl, function_section_1(), and in_cold_section_p.
Referenced by dwarf2out_ignore_block(), dwarf2out_switch_text_section(), final_scan_insn_1(), output_function_exception_table(), profile_function(), secname_for_decl(), and switch_to_other_text_partition().
◆ decide_function_section()
| void decide_function_section | ( | tree | decl | ) |
If not using flag_reorder_blocks_and_partition, decide early whether the current function goes into the cold section, so that targets can use current_function_section during RTL expansion. DECL describes the function.
References current_function_decl, DECL_SECTION_NAME, first_function_block_is_cold, cgraph_node::frequency, cgraph_node::get(), in_cold_section_p, and NODE_FREQUENCY_UNLIKELY_EXECUTED.
Referenced by init_function_start().
◆ decl_binds_to_current_def_p()
| bool decl_binds_to_current_def_p | ( | const_tree | decl | ) |
Return true when references to DECL must bind to current definition in final executable. The condition is usually equivalent to whether the function binds to the current module (shared library or executable), that is to binds_local_p. We use this fact to avoid need for another target hook and implement the logic using binds_local_p and just special cases where decl_binds_to_current_def_p is stronger than binds_local_p. In particular the weak definitions (that can be overwritten at linktime by other definition from different object file) and when resolution info is available we simply use the knowledge passed to us by linker plugin.
References DECL_COMDAT_GROUP, DECL_COMMON, DECL_EXTERNAL, DECL_INITIAL, DECL_P, DECL_WEAK, error_mark_node, gcc_assert, symtab_node::get(), NULL, resolution_to_local_definition_p(), targetm, and TREE_PUBLIC.
Referenced by align_variable(), base_object_writable(), symtab_node::binds_to_current_def_p(), symtab_node::can_increase_alignment_p(), can_replace_by_local_alias(), compare_base_symbol_refs(), decl_replaceable_p(), default_use_anchors_for_symbol_p(), symtab_node::equal_address_to(), fndecl_abi(), get_range_strlen_tree(), get_variable_align(), maybe_instrument_pointer_overflow(), maybe_optimize_ubsan_ptr_ifn(), ipa_icf::sem_function::merge(), ipa_icf::sem_variable::merge(), symtab_node::noninterposable_alias(), symtab_node::noninterposable_alias(), optimize_weakref(), ptrs_compare_unequal(), rest_of_clean_state(), self_recursive_call_p(), and set_uids_in_ptset().
◆ decl_default_tls_model()
| enum tls_model decl_default_tls_model | ( | const_tree | decl | ) |
References optimize_dyn_tls_for_decl_p(), targetm, TLS_MODEL_GLOBAL_DYNAMIC, TLS_MODEL_INITIAL_EXEC, TLS_MODEL_LOCAL_DYNAMIC, and TLS_MODEL_LOCAL_EXEC.
Referenced by function_and_variable_visibility(), and init_ic_make_global_vars().
◆ decl_readonly_section()
| bool decl_readonly_section | ( | const_tree | decl, |
| int | reloc ) |
Decide whether DECL needs to be in a writable section. RELOC is the same as for SELECT_SECTION.
References categorize_decl_for_section(), and decl_readonly_section_1().
Referenced by default_select_section(), and readonly_data_expr().
◆ decl_readonly_section_1()
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static |
References SECCAT_RODATA, SECCAT_RODATA_MERGE_CONST, SECCAT_RODATA_MERGE_STR, SECCAT_RODATA_MERGE_STR_INIT, and SECCAT_SRODATA.
Referenced by decl_readonly_section(), and default_section_type_flags().
◆ decl_replaceable_p()
A replaceable function or variable is one which may be replaced at link-time with an entirely different definition, provided that the replacement has the same type. For example, functions declared with __attribute__((weak)) on most systems are replaceable. If SEMANTIC_INTERPOSITION_P is false allow interposition only on symbols explicitly declared weak. COMDAT functions are not replaceable, since all definitions of the function must be equivalent. It is important that COMDAT functions not be treated as replaceable so that use of C++ template instantiations is not penalized.
References decl_binds_to_current_def_p(), DECL_COMDAT, DECL_P, DECL_WEAK, gcc_assert, and TREE_PUBLIC.
Referenced by varpool_node::ctor_useable_for_folding_p(), cgraph_node::get_availability(), and varpool_node::get_availability().
◆ declare_weak()
| void declare_weak | ( | tree | decl | ) |
Declare DECL to be a weak symbol.
References DECL_ATTRIBUTES, error(), gcc_assert, get_identifier(), lookup_attribute(), mark_weak(), NULL, TARGET_SUPPORTS_WEAK, TREE_ASM_WRITTEN, TREE_CODE, tree_cons(), TREE_PUBLIC, and warning().
◆ decode_addr_const()
|
static |
References addr_const::base, byte_position(), COMPOUND_LITERAL_EXPR_DECL, DECL_RTL, exp(), force_label_rtx(), poly_int< N, C >::force_shwi(), gcc_assert, gcc_unreachable, gen_rtx_MEM(), INDIRECT_REF_P, lookup_constant_def(), MEM_P, mem_ref_offset(), addr_const::offset, offset, poly_int_tree_p(), wi::to_poly_widest(), TREE_CODE, TREE_INT_CST_LOW, TREE_OPERAND, tree_to_shwi(), TREE_TYPE, TYPE_SIZE_UNIT, and XEXP.
Referenced by compare_constant(), and const_hash_1().
◆ decode_reg_name()
| int decode_reg_name | ( | const char * | name | ) |
Decode an `asm' spec for a declaration as a register name. Return the register number, or -1 if nothing specified, or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized, or -3 if ASMSPEC is `cc' and is not recognized, or -4 if ASMSPEC is `memory' and is not recognized. Accept an exact spelling or a decimal number. Prefixes such as % are optional.
References count, and decode_reg_name_and_count().
Referenced by handle_common_deferred_options(), and make_decl_rtl().
◆ decode_reg_name_and_count()
| int decode_reg_name_and_count | ( | const char * | asmspec, |
| int * | pnregs ) |
Decode an `asm' spec for a declaration as a register name. Return the register number, or -1 if nothing specified, or -2 if the ASMSPEC is not `cc' or `memory' or `redzone' and is not recognized, or -3 if ASMSPEC is `cc' and is not recognized, or -4 if ASMSPEC is `memory' and is not recognized, or -5 if ASMSPEC is `redzone' and is not recognized. Accept an exact spelling or a decimal number. Prefixes such as % are optional.
References errno, i, INT_MAX, symtab_node::name(), reg_names, strip_reg_name(), and table.
Referenced by decode_reg_name(), expand_asm_stmt(), and fix_register().
◆ default_asm_declare_constant_name()
| void default_asm_declare_constant_name | ( | FILE * | file, |
| const char * | name, | ||
| const_tree | exp, | ||
| HOST_WIDE_INT | size ) |
The default implementation of ASM_DECLARE_CONSTANT_NAME.
References assemble_label().
◆ default_asm_output_ident_directive()
| void default_asm_output_ident_directive | ( | const char * | ident_str | ) |
Default TARGET_ASM_OUTPUT_IDENT hook. This is a bit of a cheat. The real default is a no-op, but this hook is the default for all targets with a .ident directive.
References asm_out_file, build_string(), symbol_table::finalize_toplevel_asm(), NULL, PARSING, symbol_table::state, and symtab.
◆ default_asm_output_source_filename()
| void default_asm_output_source_filename | ( | FILE * | file, |
| const char * | name ) |
The default hook for TARGET_ASM_OUTPUT_SOURCE_FILENAME.
References output_quoted_string().
◆ default_assemble_integer()
The default implementation of the asm_out.integer target hook.
References assemble_integer_with_op(), integer_asm_op(), and POINTER_SIZE_UNITS.
◆ default_assemble_visibility()
| void default_assemble_visibility | ( | tree | decl, |
| int | vis ) |
Emit an assembler directive to set symbol for DECL visibility to the visibility type VIS, which must not be VISIBILITY_DEFAULT.
References asm_out_file, assemble_name(), DECL_ARTIFICIAL, DECL_ASSEMBLER_NAME, IDENTIFIER_POINTER, symtab_node::name(), NULL, type(), ultimate_transparent_alias_target(), and warning().
◆ default_binds_local_p()
| bool default_binds_local_p | ( | const_tree | exp | ) |
Assume ELF-ish defaults, since that's pretty much the most liberal wrt cross-module name binding.
References default_binds_local_p_3(), and exp().
◆ default_binds_local_p_1()
| bool default_binds_local_p_1 | ( | const_tree | exp, |
| int | shlib ) |
References default_binds_local_p_3(), and exp().
◆ default_binds_local_p_2()
| bool default_binds_local_p_2 | ( | const_tree | exp | ) |
Similar to default_binds_local_p, but common symbol may be local and extern protected data is non-local.
References default_binds_local_p_3(), and exp().
◆ default_binds_local_p_3()
| bool default_binds_local_p_3 | ( | const_tree | exp, |
| bool | shlib, | ||
| bool | weak_dominate, | ||
| bool | extern_protected_data, | ||
| bool | common_local_p ) |
COMMON_LOCAL_P is true means that the linker can guarantee that an uninitialized common symbol in the executable will still be defined (through COPY relocation) in the executable.
References DECL_ATTRIBUTES, DECL_COMMON, DECL_EXTERNAL, DECL_INITIAL, DECL_P, DECL_VISIBILITY, DECL_VISIBILITY_SPECIFIED, DECL_WEAK, error_mark_node, exp(), cgraph_node::get(), symtab_node::get(), lookup_attribute(), NULL, resolution_local_p(), resolution_to_local_definition_p(), targetm, TREE_CODE, TREE_PUBLIC, VISIBILITY_DEFAULT, and VISIBILITY_PROTECTED.
Referenced by default_binds_local_p(), default_binds_local_p_1(), and default_binds_local_p_2().
◆ default_clone_table_section()
| section * default_clone_table_section | ( | void | ) |
Provide a default for the tm_clone_table section.
References get_named_section(), and NULL.
◆ default_coff_asm_named_section()
| void default_coff_asm_named_section | ( | const char * | name, |
| unsigned int | flags, | ||
| tree | decl ) |
References asm_out_file, SECTION_CODE, and SECTION_WRITE.
Referenced by default_pe_asm_named_section().
◆ default_elf_asm_named_section()
| void default_elf_asm_named_section | ( | const char * | name, |
| unsigned int | flags, | ||
| tree | decl ) |
References ASM_COMMENT_START, asm_out_file, assemble_name_raw(), current_function_funcdef_no, DECL_COMDAT_GROUP, gcc_assert, IDENTIFIER_POINTER, SECTION_BSS, SECTION_CODE, SECTION_DEBUG, SECTION_DECLARED, SECTION_ENTSIZE, SECTION_EXCLUDE, SECTION_LINK_ORDER, SECTION_LINKONCE, SECTION_MACH_DEP, SECTION_MERGE, SECTION_NOTYPE, SECTION_RETAIN, SECTION_SMALL, SECTION_STRINGS, SECTION_TLS, SECTION_WRITE, targetm, TLS_SECTION_ASM_FLAG, TREE_CODE, and type().
◆ default_elf_asm_output_external()
| void default_elf_asm_output_external | ( | FILE * | file, |
| tree | decl, | ||
| const char * | name ) |
Emit text to declare externally defined symbols. It is needed to properly support non-default visibility.
References DECL_ASSEMBLER_NAME, DECL_VISIBILITY_SPECIFIED, maybe_assemble_visibility(), targetm, and TREE_SYMBOL_REFERENCED.
◆ default_elf_fini_array_asm_out_destructor()
| void default_elf_fini_array_asm_out_destructor | ( | rtx | symbol, |
| int | priority ) |
Use .fini_array section for destructors.
References assemble_addr_to_section(), and get_elf_initfini_array_priority_section().
◆ default_elf_init_array_asm_out_constructor()
| void default_elf_init_array_asm_out_constructor | ( | rtx | symbol, |
| int | priority ) |
Use .init_array section for constructors.
References assemble_addr_to_section(), and get_elf_initfini_array_priority_section().
◆ default_elf_select_rtx_section()
◆ default_elf_select_section()
Select a section based on the above categorization.
References bss_section, categorize_decl_for_section(), data_section, DECL_INITIAL, DECL_MODE, DECL_NOINIT_P, DECL_P, DECL_PERSISTENT_P, gcc_unreachable, get_named_section(), mergeable_constant_section(), mergeable_string_section(), readonly_data_section, SECCAT_BSS, SECCAT_DATA, SECCAT_DATA_REL, SECCAT_DATA_REL_LOCAL, SECCAT_DATA_REL_RO, SECCAT_DATA_REL_RO_LOCAL, SECCAT_RODATA, SECCAT_RODATA_MERGE_CONST, SECCAT_RODATA_MERGE_STR, SECCAT_RODATA_MERGE_STR_INIT, SECCAT_SBSS, SECCAT_SDATA, SECCAT_SRODATA, SECCAT_TBSS, SECCAT_TDATA, and SECCAT_TEXT.
◆ default_emit_except_table_label()
| void default_emit_except_table_label | ( | FILE * | stream | ) |
Default function to output a label to divide up the exception table. The default is to do nothing. A target that needs/wants to divide up the table must provide it's own function to do this.
◆ default_emit_unwind_label()
| void default_emit_unwind_label | ( | FILE * | stream, |
| tree | decl, | ||
| int | for_eh, | ||
| int | empty ) |
Default function to output a label for unwind information. The default is to do nothing. A target that needs nonlocal labels for unwind information must provide its own function to do this.
◆ default_encode_section_info()
Set the generally applicable flags on the SYMBOL_REF for EXP.
References DECL_EXTERNAL, DECL_P, DECL_THREAD_LOCAL_P, DECL_TLS_MODEL, GET_CODE, MEM_P, SYMBOL_FLAG_EXTERNAL, SYMBOL_FLAG_FUNCTION, SYMBOL_FLAG_HAS_BLOCK_INFO, SYMBOL_FLAG_LOCAL, SYMBOL_FLAG_SMALL, SYMBOL_FLAG_TLS_SHIFT, SYMBOL_REF_FLAGS, targetm, TREE_CODE, TREE_PUBLIC, VAR_P, and XEXP.
◆ default_file_start()
| void default_file_start | ( | void | ) |
This is the default behavior at the beginning of a file. It's controlled by two other target-hook toggles.
References asm_out_file, output_file_directive(), and targetm.
◆ default_function_rodata_section()
Return the read-only or relocated read-only data section associated with function DECL.
References alloca, DECL_COMDAT_GROUP, DECL_SECTION_NAME, get_section(), symtab_node::name(), readonly_data_section, SECTION_LINKONCE, SECTION_RELRO, SECTION_WRITE, and startswith().
◆ default_function_section()
| section * default_function_section | ( | tree | decl, |
| enum node_frequency | freq, | ||
| bool | startup, | ||
| bool | exit ) |
Choose named function section based on its frequency.
References cgraph_node::get(), symtab_node::get(), get_named_text_section(), NODE_FREQUENCY_HOT, NODE_FREQUENCY_UNLIKELY_EXECUTED, NULL, and opt_for_fn.
◆ default_generate_internal_label()
| void default_generate_internal_label | ( | char * | buf, |
| const char * | prefix, | ||
| unsigned long | labelno ) |
This is how to output an internal numbered label where PREFIX is the class of label and LABELNO is the number within the class.
◆ default_globalize_decl_name()
| void default_globalize_decl_name | ( | FILE * | stream, |
| tree | decl ) |
◆ default_internal_label()
| void default_internal_label | ( | FILE * | stream, |
| const char * | prefix, | ||
| unsigned long | labelno ) |
This is how to output an internal numbered label where PREFIX is the class of label and LABELNO is the number within the class.
References alloca, and ASM_OUTPUT_INTERNAL_LABEL.
◆ default_named_section_asm_out_constructor()
| void default_named_section_asm_out_constructor | ( | rtx | symbol, |
| int | priority ) |
◆ default_named_section_asm_out_destructor()
| void default_named_section_asm_out_destructor | ( | rtx | symbol, |
| int | priority ) |
◆ default_no_function_rodata_section()
Return the read-only data section associated with function DECL for targets where that section should be always the single readonly data section.
References readonly_data_section.
◆ default_no_named_section()
| void default_no_named_section | ( | const char * | name, |
| unsigned int | flags, | ||
| tree | decl ) |
Output assembly to switch to section NAME with attribute FLAGS. Four variants for common object file formats.
References gcc_unreachable.
◆ default_pe_asm_named_section()
| void default_pe_asm_named_section | ( | const char * | name, |
| unsigned int | flags, | ||
| tree | decl ) |
References asm_out_file, default_coff_asm_named_section(), SECTION_CODE, and SECTION_LINKONCE.
◆ default_section_type_flags()
| unsigned int default_section_type_flags | ( | tree | decl, |
| const char * | name, | ||
| int | reloc ) |
Select a set of attributes for section NAME based on the properties of DECL and whether or not RELOC indicates that DECL's initializer might contain runtime relocations. We make the section read-only and executable for a function decl, read-only for a const data decl, and writable for a non-const data decl.
References categorize_decl_for_section(), DECL_COMDAT_GROUP, DECL_P, decl_readonly_section_1(), DECL_THREAD_LOCAL_P, SECCAT_DATA_REL_RO, SECCAT_DATA_REL_RO_LOCAL, SECTION_BSS, SECTION_CODE, SECTION_ENTSIZE, SECTION_LINKONCE, SECTION_NOTYPE, SECTION_RELRO, SECTION_TLS, SECTION_WRITE, startswith(), TREE_CODE, and VAR_P.
◆ default_select_rtx_section()
References compute_reloc_for_rtx(), data_section, readonly_data_section, and targetm.
◆ default_select_section()
The lame default section selector.
References data_section, DECL_P, decl_readonly_section(), readonly_data_section, TREE_CODE, TREE_CONSTANT, and TREE_READONLY.
◆ default_strip_name_encoding()
| const char * default_strip_name_encoding | ( | const char * | str | ) |
By default, we do nothing for encode_section_info, so we need not do anything but discard the '*' marker.
◆ default_unique_section()
| void default_unique_section | ( | tree | decl, |
| int | reloc ) |
Construct a unique section name based on the decl name and the categorization performed above.
References categorize_decl_for_section(), DECL_ASSEMBLER_NAME, DECL_NOINIT_P, DECL_ONE_ONLY, DECL_P, DECL_PERSISTENT_P, gcc_unreachable, IDENTIFIER_POINTER, NULL, SECCAT_BSS, SECCAT_DATA, SECCAT_DATA_REL, SECCAT_DATA_REL_LOCAL, SECCAT_DATA_REL_RO, SECCAT_DATA_REL_RO_LOCAL, SECCAT_RODATA, SECCAT_RODATA_MERGE_CONST, SECCAT_RODATA_MERGE_STR, SECCAT_RODATA_MERGE_STR_INIT, SECCAT_SBSS, SECCAT_SDATA, SECCAT_SRODATA, SECCAT_TBSS, SECCAT_TDATA, SECCAT_TEXT, set_decl_section_name(), targetm, and ultimate_transparent_alias_target().
◆ default_use_anchors_for_symbol_p()
The default implementation of TARGET_USE_ANCHORS_FOR_SYMBOL_P.
References section::common, decl_binds_to_current_def_p(), DECL_P, DECL_SIZE_UNIT, section_common::flags, gcc_checking_assert, NULL_TREE, SECTION_MERGE, SECTION_SMALL, SYMBOL_REF_BLOCK, SYMBOL_REF_DECL, targetm, tree_fits_uhwi_p(), TREE_PUBLIC, and tree_to_uhwi().
◆ do_assemble_alias()
Output the assembler code for a define (equate) using ASM_OUTPUT_DEF or ASM_OUTPUT_DEF_FROM_DECLS. The function defines the symbol whose tree node is DECL to have the value of the tree node TARGET.
References asm_out_file, symtab_node::decl, DECL_ASSEMBLER_NAME, DECL_ATTRIBUTES, DECL_SOURCE_LOCATION, DECL_THREAD_LOCAL_P, error_at(), gcc_assert, gcc_checking_assert, cgraph_node::get(), globalize_decl(), IDENTIFIER_POINTER, IFUNC_ASM_TYPE, symtab_node::ifunc_resolver, lookup_attribute(), make_decl_rtl(), maybe_assemble_visibility(), symtab_node::name(), seen_error(), TARGET_SUPPORTS_ALIASES, TARGET_SUPPORTS_WEAK, targetm, TREE_ASM_WRITTEN, TREE_CHAIN, TREE_CODE, tree_cons(), TREE_PUBLIC, TREE_SYMBOL_REFERENCED, TREE_VALUE, ultimate_transparent_alias_target(), VAR_P, weak_decls, and weakref_targets.
Referenced by assemble_alias(), varpool_node::assemble_aliases(), cgraph_node::assemble_thunks_and_aliases(), and symbol_table::output_weakrefs().
◆ do_assemble_symver()
Output .symver directive.
References asm_out_file, DECL_ASSEMBLER_NAME, error(), IDENTIFIER_POINTER, and ultimate_transparent_alias_target().
Referenced by varpool_node::assemble_aliases(), and cgraph_node::assemble_thunks_and_aliases().
◆ dump_tm_clone_pairs()
|
static |
Dump the actual pairs to the .tm_clone_table section.
References assemble_align(), assemble_integer(), DECL_RTL, symtab_node::definition, FOR_EACH_VEC_ELT, tm_alias_pair::from, cgraph_node::get(), i, POINTER_SIZE, POINTER_SIZE_UNITS, switch_to_section(), targetm, tm_alias_pair::to, and XEXP.
Referenced by finish_tm_clone_pairs().
◆ elf_record_gcc_switches()
| void elf_record_gcc_switches | ( | const char * | options | ) |
This function provides a possible implementation of the TARGET_ASM_RECORD_GCC_SWITCHES target hook for ELF targets. When triggered by -frecord-gcc-switches it creates a new mergeable, string section in the assembler output file called TARGET_ASM_RECORD_GCC_SWITCHES_SECTION which contains the switches in ASCII format. FIXME: This code does not correctly handle double quote characters that appear inside strings, (it strips them rather than preserving them). FIXME: ASM_OUTPUT_ASCII, as defined in config/elfos.h will not emit NUL characters - instead it treats them as sub-string separators. Since we want to emit NUL strings terminators into the object file we have to use ASM_OUTPUT_SKIP.
References asm_out_file, ASM_OUTPUT_ASCII, get_section(), NULL, SECTION_DEBUG, SECTION_ENTSIZE, SECTION_MERGE, SECTION_STRINGS, switch_to_section(), and targetm.
◆ eliminable_regno_p()
|
static |
Return true if REGNUM is mentioned in ELIMINABLE_REGS as a from register number.
References i.
Referenced by make_decl_rtl().
◆ emit_common()
|
static |
A noswitch_section_callback for bss_noswitch_section.
A noswitch_section_callback for comm_section.
References asm_out_file, get_variable_align(), and symtab_node::name().
Referenced by init_varasm_once().
◆ emit_local()
|
static |
A noswitch_section_callback for lcomm_section.
References asm_out_file, symtab_node::definition_alignment(), symtab_node::get(), and symtab_node::name().
Referenced by init_varasm_once().
◆ emit_tls_common()
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static |
A noswitch_section_callback for tls_comm_section.
References asm_out_file, symtab_node::name(), and sorry().
Referenced by init_varasm_once().
◆ file_end_indicate_exec_stack()
| void file_end_indicate_exec_stack | ( | void | ) |
References get_section(), NULL, SECTION_CODE, SECTION_DEBUG, switch_to_section(), and trampolines_created.
◆ file_end_indicate_split_stack()
| void file_end_indicate_split_stack | ( | void | ) |
Emit a special section directive to indicate that this object file was compiled with -fsplit-stack. This is used to let the linker detect calls between split-stack code and non-split-stack code, so that it can modify the split-stack code to allocate a sufficiently large stack. We emit another special section if there are any functions in this file which have the no_split_stack attribute, to prevent the linker from warning about being unable to convert the functions if they call non-split-stack code.
References get_section(), NULL, saw_no_split_stack, SECTION_DEBUG, and switch_to_section().
◆ find_decl()
Fiven an assembly name, find the decl it is associated with.
References symtab_node::decl, symtab_node::get_for_asmname(), and NULL_TREE.
Referenced by assemble_alias(), and weak_finish().
◆ finish_tm_clone_pairs()
| void finish_tm_clone_pairs | ( | void | ) |
References DECL_UID, dump_tm_clone_pairs(), FOR_EACH_HASH_TABLE_ELEMENT, map, NULL, tm_alias_pair_cmp(), tm_clone_hash, and vNULL.
Referenced by compile_file().
◆ force_const_mem()
Given a constant rtx X, make (or find) a memory constant for its value and return a MEM rtx to refer to it in memory. IN_MODE is the mode of X.
References constant_descriptor_rtx::align, const_labelno, const_rtx_hash(), rtx_constant_pool::const_rtx_htab, constant_descriptor_rtx::constant, CONSTANT_POOL_ADDRESS_P, copy_rtx(), create_block_symbol(), crtl, hash_table< Descriptor, Lazy, Allocator >::find_slot_with_hash(), rtx_constant_pool::first, gen_const_mem(), get_block_for_section(), GET_CODE, GET_MODE_SIZE(), ggc_alloc(), ggc_strdup, constant_descriptor_rtx::hash, is_a(), LABEL_PRESERVE_P, constant_descriptor_rtx::labelno, rtx_constant_pool::last, constant_descriptor_rtx::mark, constant_descriptor_rtx::mem, constant_descriptor_rtx::mode, constant_descriptor_rtx::next, NULL, NULL_RTX, constant_descriptor_rtx::offset, rtx_constant_pool::offset, set_mem_align(), SET_SYMBOL_REF_CONSTANT, shared_constant_pool, constant_descriptor_rtx::sym, SYMBOL_FLAG_LOCAL, SYMBOL_REF_FLAGS, targetm, use_object_blocks_p(), word_mode, and XEXP.
Referenced by compress_float_constant(), cse_insn(), curr_insn_transform(), emit_move_insn(), emit_move_multi_word(), emit_push_insn(), expand_expr_real_1(), find_reloads(), find_reloads_address_part(), find_reloads_toplev(), init_eliminable_invariants(), move_block_to_reg(), plus_constant(), recog_for_combine(), replace_label(), setup_reg_equiv(), and simplify_operand_subreg().
◆ function_mergeable_rodata_prefix()
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A subroutine of mergeable_string_section and mergeable_constant_section.
References current_function_decl, named_section::name, section::named, SECTION_NAMED, SECTION_STYLE, and targetm.
Referenced by mergeable_constant_section(), and mergeable_string_section().
◆ function_section()
Return the section for function DECL. If DECL is NULL_TREE, return the text section. We can be passed NULL_TREE under some circumstances by dbxout.cc at least.
References first_function_block_is_cold, and function_section_1().
Referenced by assemble_end_function(), assemble_start_function(), dwarf2out_begin_prologue(), find_empty_loc_ranges_at_text_label(), and output_fde().
◆ function_section_1()
Return the section for function DECL. If DECL is NULL_TREE, return the text section. We can be passed NULL_TREE under some circumstances by dbxout.cc at least. If FORCE_COLD is true, return cold function section ignoring the frequency info of cgraph_node.
References DECL_SECTION_NAME, symtab_node::definition_alignment(), cgraph_node::frequency, cgraph_node::get(), symtab_node::get(), get_named_section(), hot_function_section(), NODE_FREQUENCY_NORMAL, NODE_FREQUENCY_UNLIKELY_EXECUTED, NULL, NULL_TREE, cgraph_node::only_called_at_exit, cgraph_node::only_called_at_startup, and targetm.
Referenced by current_function_section(), function_section(), unlikely_text_section(), and unlikely_text_section_p().
◆ get_block_for_decl()
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Return the block into which object_block DECL should be placed.
References align_variable(), section::common, DECL_ATTRIBUTES, DECL_COMDAT_GROUP, DECL_EXTERNAL, DECL_SIZE_UNIT, section_common::flags, get_block_for_section(), get_variable_section(), lookup_attribute(), NULL, object_block::sect, SECTION_NOSWITCH, SECTION_RETAIN, SECTION_STYLE, tree_fits_uhwi_p(), and VAR_P.
Referenced by make_decl_rtl().
◆ get_block_for_section()
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static |
Return the object_block structure for section SECT. Create a new structure if we haven't created one already. Return null if SECT itself is null. Return also null for mergeable sections since section anchors can't be used in mergeable sections anyway, because the linker might move objects around, and using the object blocks infrastructure in that case is both a waste and a maintenance burden.
References section::common, section_common::flags, ggc_cleared_alloc(), hash_section(), NULL, object_block_htab, object_block::sect, and SECTION_MERGE.
Referenced by build_constant_desc(), force_const_mem(), and get_block_for_decl().
◆ get_cdtor_priority_section()
Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if not) section for PRIORITY.
References get_section(), MAX_INIT_PRIORITY, NULL, and SECTION_WRITE.
Referenced by default_named_section_asm_out_constructor(), and default_named_section_asm_out_destructor().
◆ get_constant_section()
Return the section into which constant EXP should be placed.
References compute_reloc_for_constant(), exp(), and targetm.
Referenced by build_constant_desc(), and output_constant_def_contents().
◆ get_constant_size()
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Return the size of constant EXP in bytes.
References exp(), gcc_checking_assert, int_size_in_bytes(), TREE_CODE, TREE_STRING_LENGTH, and TREE_TYPE.
Referenced by assemble_constant_contents(), output_constant_def_contents(), output_object_block(), and place_block_symbol().
◆ get_elf_initfini_array_priority_section()
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References DEFAULT_INIT_PRIORITY, elf_fini_array_section, elf_init_array_section, get_section(), NULL, NULL_TREE, SECTION_NOTYPE, and SECTION_WRITE.
Referenced by default_elf_fini_array_asm_out_destructor(), and default_elf_init_array_asm_out_constructor().
◆ get_fnname_from_decl()
| const char * get_fnname_from_decl | ( | tree | decl | ) |
Get the function's name, as described by its RTL. This may be different from the DECL_NAME name used in the source file.
References DECL_RTL, gcc_assert, GET_CODE, MEM_P, XEXP, and XSTR.
Referenced by output_function_exception_table(), and rest_of_handle_final().
◆ get_named_section()
Return a section with a particular name and with whatever SECTION_* flags section_type_flags deems appropriate. The name of the section is taken from NAME if nonnull, otherwise it is taken from DECL's DECL_SECTION_NAME. DECL is the decl associated with the section (see the section comment for details) and RELOC is as for section_type_flags.
References DECL_P, DECL_SECTION_NAME, gcc_assert, get_section(), NULL, and targetm.
Referenced by default_clone_table_section(), default_elf_select_rtx_section(), default_elf_select_section(), function_section_1(), get_named_text_section(), get_variable_section(), and hot_function_section().
◆ get_named_text_section()
| section * get_named_text_section | ( | tree | decl, |
| const char * | text_section_name, | ||
| const char * | named_section_suffix ) |
Return section for TEXT_SECTION_NAME if DECL or DECL_SECTION_NAME (DECL) is NULL. When DECL_SECTION_NAME is non-NULL and it is implicit section and NAMED_SECTION_SUFFIX is non-NULL, then produce section called concatenate the name with NAMED_SECTION_SUFFIX. Otherwise produce "TEXT_SECTION_NAME.IMPLICIT_NAME".
References alloca, DECL_ASSEMBLER_NAME, DECL_COMDAT_GROUP, DECL_SECTION_NAME, symtab_node::get(), get_named_section(), IDENTIFIER_POINTER, NULL, and targetm.
Referenced by default_function_section().
◆ get_noswitch_section()
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static |
Return a SECTION_NOSWITCH section with the given fields.
References noswitch_section::callback, noswitch_section::common, section_common::flags, ggc_alloc(), section::noswitch, and SECTION_NOSWITCH.
Referenced by init_varasm_once().
◆ get_pool_constant()
Given a constant pool SYMBOL_REF, return the corresponding constant.
References SYMBOL_REF_CONSTANT.
Referenced by avoid_constant_pool_reference(), get_some_local_dynamic_name(), mark_jump_label_1(), noce_try_abs(), plus_constant(), replace_label(), and rtx_referenced_p().
◆ get_pool_constant_mark()
Given a constant pool SYMBOL_REF, return the corresponding constant and whether it has been output or not.
References constant_descriptor_rtx::constant, constant_descriptor_rtx::mark, and SYMBOL_REF_CONSTANT.
Referenced by const_ok_for_output_1().
◆ get_pool_mode()
| fixed_size_mode get_pool_mode | ( | const_rtx | addr | ) |
Similar, return the mode.
References SYMBOL_REF_CONSTANT.
Referenced by avoid_constant_pool_reference(), offset_within_block_p(), plus_constant(), and replace_label().
◆ get_section()
Return the named section structure associated with NAME. Create a new section with the given fields if no such structure exists. When NOT_EXISTING, then fail if the section already exists. Return the existing section if the SECTION_RETAIN bit doesn't match. Set the SECTION_WRITE | SECTION_RELRO bits on the existing section if one of the section flags is SECTION_WRITE | SECTION_RELRO and the other has none of these flags in named sections and either the section hasn't been declared yet or has been declared as writable.
References named_section::common, section::common, named_section::decl, DECL_ATTRIBUTES, DECL_P, DECL_SOURCE_LOCATION, error(), section_common::flags, ggc_alloc(), ggc_strdup, inform(), internal_error(), lookup_attribute(), named_section::name, section::named, NULL, SECTION_BSS, SECTION_CODE, SECTION_DECLARED, SECTION_ENTSIZE, section_htab, SECTION_LINKONCE, SECTION_NAMED, SECTION_NOTYPE, SECTION_OVERRIDE, SECTION_RELRO, SECTION_RETAIN, SECTION_TLS, and SECTION_WRITE.
Referenced by build_gcov_info_var_registration(), default_elf_select_rtx_section(), default_function_rodata_section(), default_named_section_asm_out_constructor(), default_named_section_asm_out_destructor(), default_print_patchable_function_entry(), elf_record_gcc_switches(), file_end_indicate_exec_stack(), file_end_indicate_split_stack(), get_cdtor_priority_section(), get_elf_initfini_array_priority_section(), get_named_section(), init_btf_sections(), init_ctf_sections(), lhd_begin_section(), mergeable_constant_section(), mergeable_string_section(), output_comdat_type_unit(), output_comp_unit(), switch_to_eh_frame_section(), switch_to_exception_section(), and switch_to_frame_table_section().
◆ get_section_anchor()
| rtx get_section_anchor | ( | struct object_block * | block, |
| HOST_WIDE_INT | offset, | ||
| enum tls_model | model ) |
Return the anchor that should be used to address byte offset OFFSET from the first object in BLOCK. MODEL is the TLS model used to access it.
References anchor_labelno, object_block::anchors, begin(), create_block_symbol(), end(), GET_MODE_BITSIZE(), ggc_strdup, HOST_WIDE_INT_1U, offset, ptr_mode, SYMBOL_FLAG_ANCHOR, SYMBOL_FLAG_LOCAL, SYMBOL_FLAG_TLS_SHIFT, SYMBOL_REF_BLOCK_OFFSET, SYMBOL_REF_FLAGS, SYMBOL_REF_TLS_MODEL, targetm, vec_safe_insert(), and vec_safe_length().
Referenced by use_anchored_address().
◆ get_tm_clone_pair()
References NULL_TREE, and tm_clone_hash.
Referenced by ipa_tm_insert_gettmclone_call().
◆ get_unnamed_section()
| section * get_unnamed_section | ( | unsigned int | flags, |
| void(* | callback )(const char *), | ||
| const char * | data ) |
Return a new unnamed section with the given fields.
References unnamed_section::callback, unnamed_section::common, unnamed_section::data, section_common::flags, ggc_alloc(), unnamed_section::next, SECTION_UNNAMED, section::unnamed, and unnamed_sections.
Referenced by init_varasm_once().
◆ get_variable_align()
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static |
Return DECL_ALIGN (decl), possibly increased for optimization purposes beyond what align_variable returned.
References BITS_PER_WORD, DECL_ALIGN, decl_binds_to_current_def_p(), DECL_INITIAL, DECL_THREAD_LOCAL_P, DECL_USER_ALIGN, error_mark_node, targetm, TREE_PUBLIC, and TREE_TYPE.
Referenced by assemble_variable(), assemble_variable_contents(), emit_common(), get_variable_section(), and place_block_symbol().
◆ get_variable_section()
Return the section into which the given VAR_DECL or CONST_DECL should be placed. PREFER_NOSWITCH_P is true if a noswitch section should be used wherever possible.
References ADDR_SPACE_GENERIC, ADDR_SPACE_GENERIC_P, asan_protect_global(), bss_initializer_p(), bss_noswitch_section, comm_section, section::common, compute_reloc_for_var(), symtab_node::decl, DECL_ATTRIBUTES, DECL_COMMON, DECL_INITIAL, DECL_NOINIT_P, DECL_SECTION_NAME, DECL_SOURCE_LOCATION, DECL_THREAD_LOCAL_P, error_at(), error_mark_node, section_common::flags, gcc_assert, varpool_node::get(), varpool_node::get_constructor(), get_named_section(), get_variable_align(), IN_NAMED_SECTION, lcomm_section, lookup_attribute(), named_section::name, section::named, NULL, resolve_unique_section(), SANITIZE_ADDRESS, SECTION_BSS, targetm, tls_comm_section, TREE_PUBLIC, TREE_TYPE, TYPE_ADDR_SPACE, and varpool_node::ultimate_alias_target().
Referenced by assemble_variable(), varpool_node::finalize_named_section_flags(), get_block_for_decl(), and write_symbol_extension_info().
◆ globalize_decl()
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static |
Emit the assembly bits to indicate that DECL is globally visible.
References asm_out_file, DECL_ASSEMBLER_NAME, DECL_RTL, DECL_WEAK, symtab_node::name(), targetm, TREE_CHAIN, TREE_VALUE, ultimate_transparent_alias_target(), weak_decls, weakref_targets, XEXP, and XSTR.
Referenced by assemble_start_function(), assemble_variable(), and do_assemble_alias().
◆ handle_vtv_comdat_section()
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This function ensures that vtable_map variables are not only in the comdat section, but that each variable has its own unique comdat name. Without this the variables end up in the same section with a single comdat name.
References DECL_NAME, and switch_to_comdat_section().
Referenced by assemble_variable(), and output_object_block().
◆ hash_section()
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static |
Return a hash value for section SECT.
References section::common, section_common::flags, named_section::name, section::named, and SECTION_NAMED.
Referenced by get_block_for_section(), and object_block_hasher::hash().
◆ have_global_bss_p()
| bool have_global_bss_p | ( | void | ) |
Return true if the target supports some form of global BSS, either through bss_noswitch_section, or by selecting a BSS section in TARGET_ASM_SELECT_SECTION.
References bss_noswitch_section, and targetm.
◆ have_optimized_refs()
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static |
Determine whether SYMBOL is used in any optimized function.
References symtab_node::decl, dyn_cast(), i, symtab_node::iterate_referring(), opt_for_fn, and ipa_ref::referring.
Referenced by optimize_dyn_tls_for_decl_p().
◆ hot_function_section()
Return the hot section for function DECL. Return text_section for null DECLs.
References DECL_SECTION_NAME, get_named_section(), NULL, NULL_TREE, and text_section.
Referenced by function_section_1().
◆ init_varasm_once()
| void init_varasm_once | ( | void | ) |
In varasm.cc
References bss_noswitch_section, bss_section, comm_section, const_desc_htab, create_constant_pool(), hash_table< Descriptor, Lazy, Allocator >::create_ggc(), ctors_section, data_section, dtors_section, emit_common(), emit_local(), emit_tls_common(), get_noswitch_section(), get_unnamed_section(), lcomm_section, NULL, object_block_htab, output_section_asm_op(), readonly_data_section, sbss_section, sdata_section, SECTION_BSS, SECTION_CODE, SECTION_COMMON, section_htab, SECTION_WRITE, shared_constant_pool, targetm, text_section, and tls_comm_section.
Referenced by backend_init().
◆ init_varasm_status()
| void init_varasm_status | ( | void | ) |
Initialize constant pool hashing for a new function.
References create_constant_pool(), and crtl.
Referenced by prepare_function_start(), read_rtl_function_body(), and read_rtl_function_body_from_file_range().
◆ initializer_constant_valid_for_bitfield_p()
| bool initializer_constant_valid_for_bitfield_p | ( | const_tree | value | ) |
Return true if VALUE is a valid constant-valued expression for use in initializing a static bit-field; one that can be an element of a "constant" initializer.
References CONSTRUCTOR_ELTS, FOR_EACH_CONSTRUCTOR_VALUE, initializer_constant_valid_for_bitfield_p(), TREE_CODE, and TREE_OPERAND.
Referenced by immediate_const_ctor_p(), and initializer_constant_valid_for_bitfield_p().
◆ initializer_constant_valid_p()
Return nonzero if VALUE is a valid constant-valued expression for use in initializing a static variable; one that can be an element of a "constant" initializer. Return null_pointer_node if the value is absolute; if it is relocatable, return the variable that determines the relocation. We assume that VALUE has been folded as much as possible; therefore, we do not need to check for such things as arithmetic-combinations of integers.
References AGGREGATE_TYPE_P, initializer_constant_valid_p_1(), NULL, null_pointer_node, NULL_TREE, and VECTOR_TYPE_P.
Referenced by categorize_ctor_elements_1(), tree_switch_conversion::switch_conversion::check_final_bb(), gimplify_init_constructor(), rtl_for_decl_init(), and tree_add_const_value_attribute().
◆ initializer_constant_valid_p_1()
Helper function of initializer_constant_valid_p. Return nonzero if VALUE is a valid constant-valued expression for use in initializing a static variable; one that can be an element of a "constant" initializer. Return null_pointer_node if the value is absolute; if it is relocatable, return the variable that determines the relocation. We assume that VALUE has been folded as much as possible; therefore, we do not need to check for such things as arithmetic-combinations of integers. Use CACHE (pointer to 2 tree values) for caching if non-NULL.
References AGGREGATE_TYPE_P, BITS_PER_WORD, cache, CASE_CONVERT, CONSTRUCTOR_ELTS, constructor_static_from_elts_p(), DECL_STATIC_CHAIN, error_mark_node, FOR_EACH_CONSTRUCTOR_VALUE, initializer_constant_valid_p_1(), integer_zerop(), INTEGRAL_TYPE_P, narrowing_initializer_constant_valid_p(), NULL, null_pointer_node, NULL_TREE, operand_equal_p(), POINTER_SIZE, POINTER_TYPE_P, SCALAR_FLOAT_TYPE_P, staticp(), TREE_CODE, TREE_CONSTANT, TREE_NO_TRAMPOLINE, TREE_OPERAND, TREE_STATIC, TREE_TYPE, TYPE_MODE, TYPE_PRECISION, TYPE_REVERSE_STORAGE_ORDER, and TYPE_UNSIGNED.
Referenced by initializer_constant_valid_p(), initializer_constant_valid_p_1(), and narrowing_initializer_constant_valid_p().
◆ integer_asm_op()
| const char * integer_asm_op | ( | int | size, |
| int | aligned_p ) |
Return the assembler directive for creating a given kind of integer object. SIZE is the number of bytes in the object and ALIGNED_P indicates whether it is known to be aligned. Return NULL if the assembly dialect has no such directive. The returned string should be printed at the start of a new line and be followed immediately by the object's initial value.
References asm_int_op::di, asm_int_op::hi, NULL, asm_int_op::pdi, asm_int_op::psi, asm_int_op::pti, asm_int_op::si, targetm, and asm_int_op::ti.
Referenced by default_assemble_integer(), default_print_patchable_function_entry(), dw2_asm_output_data(), and dw2_assemble_integer().
◆ lookup_constant_def()
Look up EXP in the table of constant descriptors. Return the rtl if it has been emitted, else null.
References const_desc_htab, const_hash_1(), exp(), constant_descriptor_tree::hash, NULL_RTX, constant_descriptor_tree::rtl, and constant_descriptor_tree::value.
Referenced by cst_pool_loc_descr(), decode_addr_const(), and expand_debug_expr().
◆ make_debug_expr_from_rtl()
Create a DEBUG_EXPR_DECL / DEBUG_EXPR pair from RTL expression EXP.
References DEBUG_EXPR_TREE_DECL, DECL_ARTIFICIAL, exp(), GET_MODE, make_node(), MEM_EXPR, MEM_P, constant_descriptor_rtx::mode, NULL_TREE, REG_EXPR, REG_P, SET_DECL_MODE, SET_DECL_RTL, TREE_TYPE, type(), lang_hooks_for_types::type_for_mode, TYPE_MODE, and lang_hooks::types.
Referenced by avoid_complex_debug_insns(), dead_debug_insert_temp(), dead_debug_promote_uses(), delete_trivially_dead_insns(), and propagate_for_debug_subst().
◆ make_decl_one_only()
Set up DECL as a public symbol that can be defined in multiple translation units without generating a linker error.
References DECL_COMMON, DECL_INITIAL, DECL_WEAK, error_mark_node, gcc_assert, cgraph_node::get_create(), varpool_node::get_create(), symtab_node::set_comdat_group(), SUPPORTS_ONE_ONLY, TARGET_SUPPORTS_WEAK, TREE_PUBLIC, VAR_OR_FUNCTION_DECL_P, and VAR_P.
Referenced by assemble_crc_table(), dw2_output_indirect_constant_1(), get_emutls_init_templ_addr(), new_emutls_decl(), and simd_clone_create().
◆ make_decl_rtl()
| void make_decl_rtl | ( | tree | decl | ) |
Create the DECL_RTL for a VAR_DECL or FUNCTION_DECL. DECL should have static storage duration. In other words, it should not be an automatic variable, including PARM_DECLs. There is, however, one exception: this function handles variables explicitly placed in a particular register by the user. This is never called for PARM_DECL nodes.
References accessible_reg_set, adjust_address_nv, asm_out_file, change_symbol_block(), create_block_symbol(), DECL_ASSEMBLER_NAME, DECL_COMMON, DECL_EXTERNAL, DECL_HARD_REGISTER, DECL_IN_CONSTANT_POOL, DECL_INITIAL, DECL_MODE, DECL_NAME, DECL_REGISTER, DECL_RTL, DECL_RTL_SET_P, DECL_SECTION_NAME, DECL_WEAK, decode_reg_name(), eliminable_regno_p(), error(), error_mark_node, gcc_assert, gen_raw_REG(), gen_rtx_MEM(), get_block_for_decl(), GET_CODE, GET_MODE, globalize_reg(), HARD_FRAME_POINTER_REGNUM, hard_regno_nregs(), IDENTIFIER_POINTER, in_hard_reg_set_p(), MEM_P, symtab_node::name(), NULL, NULL_TREE, operand_reg_set, ORIGINAL_REGNO, output_constant_def(), REG_USERVAR_P, SET_DECL_ASSEMBLER_NAME, SET_DECL_RTL, set_mem_attributes(), SET_SYMBOL_REF_DECL, SYMBOL_REF_HAS_BLOCK_INFO_P, SYMBOL_REF_WEAK, targetm, TREE_CODE, TREE_PUBLIC, TREE_STATIC, TREE_THIS_VOLATILE, TREE_TYPE, TYPE_ADDR_SPACE, use_blocks_for_decl_p(), use_object_blocks_p(), VAR_P, warning(), and XEXP.
Referenced by rt_bb_visited::check(), symtab_node::copy_visibility_from(), create_odr_indicator(), do_assemble_alias(), symtab_node::make_decl_local(), and rest_of_decl_compilation().
◆ make_decl_rtl_for_debug()
Like make_decl_rtl, but inhibit creation of new alias sets when calling make_decl_rtl. Also, reset DECL_RTL before returning the rtl.
References DECL_RTL, DECL_RTL_SET_P, NULL, and SET_DECL_RTL.
Referenced by expand_debug_expr(), and rtl_for_decl_location().
◆ mark_constant_pool()
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static |
Look through the instructions for this function, and mark all the entries in POOL which are actually being used. Emit deferred constants which have indeed been used.
References crtl, get_insns(), mark_constants(), n_deferred_constants, and NEXT_INSN().
Referenced by output_constant_pool().
◆ mark_constants()
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static |
Look through appropriate parts of INSN, marking all entries in the constant pool which are actually being used. Entries that are only referenced by other constants are also marked as used. Emit deferred strings that are used.
References dyn_cast(), i, INSN_P, mark_constants_in_pattern(), and PATTERN().
Referenced by mark_constant_pool().
◆ mark_constants_in_pattern()
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static |
Mark all constants that are referenced by SYMBOL_REFs in X. Emit referenced deferred strings.
References ALL, CONST_CAST_RTX, constant_descriptor_rtx::constant, CONSTANT_POOL_ADDRESS_P, DECL_INITIAL, FOR_EACH_SUBRTX, GET_CODE, constant_descriptor_rtx::mark, n_deferred_constants, output_constant_def_contents(), PATTERN(), SYMBOL_REF_CONSTANT, SYMBOL_REF_DECL, TREE_ASM_WRITTEN, and TREE_CONSTANT_POOL_ADDRESS_P.
Referenced by mark_constants().
◆ mark_decl_referenced()
| void mark_decl_referenced | ( | tree | decl | ) |
Set the symbol_referenced flag for DECL and notify callgraph.
References DECL_EXTERNAL, symtab_node::definition, symtab_node::force_output, cgraph_node::get_create(), varpool_node::get_create(), cgraph_node::mark_force_output(), TREE_CODE, and VAR_P.
Referenced by assemble_crc_table(), and build_gcov_info_var_registration().
◆ mark_referenced()
| void mark_referenced | ( | tree | id | ) |
Set the symbol_referenced flag for ID.
References TREE_SYMBOL_REFERENCED.
Referenced by assemble_name_resolve().
◆ mark_weak()
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static |
Mark DECL as weak.
References DECL_RTL, DECL_RTL_SET_P, DECL_WEAK, error(), symtab_node::get(), GET_CODE, MEM_P, symtab_node::refuse_visibility_changes, SYMBOL_REF_WEAK, and XEXP.
Referenced by declare_weak(), and merge_weak().
◆ maybe_assemble_visibility()
A helper function to call assemble_visibility when needed for a decl.
References DECL_VISIBILITY, targetm, and VISIBILITY_DEFAULT.
Referenced by assemble_start_function(), assemble_variable(), default_elf_asm_output_external(), and do_assemble_alias().
◆ maybe_output_constant_def_contents()
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static |
Subroutine of output_constant_def: Decide whether or not we need to output the constant DESC now, and if so, do it.
References cfun, exp(), n_deferred_constants, output_constant_def_contents(), constant_descriptor_tree::rtl, TREE_ASM_WRITTEN, constant_descriptor_tree::value, and XEXP.
Referenced by output_constant_def().
◆ merge_weak()
Merge weak status between NEWDECL and OLDDECL.
References DECL_ASSEMBLER_NAME, DECL_WEAK, error(), gcc_assert, mark_weak(), TARGET_SUPPORTS_WEAK, TREE_ASM_WRITTEN, TREE_CHAIN, TREE_PUBLIC, TREE_SYMBOL_REFERENCED, TREE_USED, TREE_VALUE, and weak_decls.
◆ mergeable_constant_section()
| section * mergeable_constant_section | ( | machine_mode | mode, |
| unsigned HOST_WIDE_INT | align, | ||
| unsigned int | flags ) |
Return the section to use for constant merging.
References alloca, function_mergeable_rodata_prefix(), GET_MODE_BITSIZE(), get_section(), known_le, symtab_node::name(), NULL, readonly_data_section, and SECTION_MERGE.
Referenced by default_elf_select_rtx_section(), and default_elf_select_section().
◆ mergeable_string_section()
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static |
Return the section to use for string merging.
References alloca, function_mergeable_rodata_prefix(), GET_MODE_BITSIZE(), GET_MODE_SIZE(), get_section(), i, int_size_in_bytes(), symtab_node::name(), NULL, readonly_data_section, SCALAR_INT_TYPE_MODE, SECTION_MERGE, SECTION_STRINGS, TREE_CODE, TREE_STRING_LENGTH, TREE_STRING_POINTER, and TREE_TYPE.
Referenced by default_elf_select_section().
◆ min_align()
|
inlinestatic |
A and B are either alignments or offsets. Return the minimum alignment that may be assumed after adding the two together.
References a, b, and least_bit_hwi().
Referenced by alter_reg(), assemble_real(), create_intersect_range_checks(), gen_reg_rtx(), output_constant(), output_constructor_array_range(), output_constructor_regular_field(), and shorten_branches().
◆ narrowing_initializer_constant_valid_p()
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static |
A subroutine of initializer_constant_valid_p. VALUE is a MINUS_EXPR, PLUS_EXPR or POINTER_PLUS_EXPR. This looks for cases of VALUE which are valid when ENDTYPE is an integer of any size; in particular, this does not accept a pointer minus a constant. This returns null_pointer_node if the VALUE is an absolute constant which can be used to initialize a static variable. Otherwise it returns NULL.
References cache, CONVERT_EXPR_P, error_mark_node, GET_MODE_SIZE(), initializer_constant_valid_p_1(), INTEGRAL_TYPE_P, NULL, null_pointer_node, NULL_TREE, operand_equal_p(), SCALAR_INT_MODE_P, SCALAR_INT_TYPE_MODE, TREE_CODE, TREE_OPERAND, TREE_TYPE, and TYPE_MODE.
Referenced by initializer_constant_valid_p_1().
◆ notice_global_symbol()
| void notice_global_symbol | ( | tree | decl | ) |
DECL is an object (either VAR_DECL or FUNCTION_DECL) which is going to be output to assembler. Set first_global_object_name and weak_global_object_name as appropriate.
References DECL_ASSEMBLER_NAME, DECL_COMMON, DECL_EXTERNAL, DECL_HARD_REGISTER, DECL_INITIAL, DECL_NAME, DECL_ONE_ONLY, DECL_WEAK, error_mark_node, first_global_object_name, ggc_strdup, IDENTIFIER_POINTER, targetm, TREE_CODE, TREE_PUBLIC, ultimate_transparent_alias_target(), VAR_P, and weak_global_object_name.
Referenced by assemble_start_function(), assemble_variable(), varpool_node::finalize_decl(), and cgraph_node::finalize_function().
◆ optimize_constant_pool()
|
static |
Attempt to optimize constant pool POOL. If it contains both CONST_VECTOR constants and scalar constants with the values of CONST_VECTOR elements, try to alias the scalar constants with the CONST_VECTOR elements.
References object_allocator< T >::allocate(), constant_descriptor_rtx_data::bytes, constant_descriptor_rtx_data_cmp(), constant_descriptor_rtx_data::desc, hash_table< Descriptor, Lazy, Allocator >::find_slot_with_hash(), rtx_constant_pool::first, floor_log2(), FOR_EACH_VEC_ELT, GET_MODE_SIZE(), constant_descriptor_rtx_data::hash, i, native_encode_rtx(), constant_descriptor_rtx::next, NULL, constant_descriptor_rtx_data::offset, object_allocator< T >::release(), constant_descriptor_rtx_data::size, SYMBOL_REF_BLOCK, and SYMBOL_REF_HAS_BLOCK_INFO_P.
Referenced by output_shared_constant_pool().
◆ optimize_dyn_tls_for_decl_p()
|
static |
Check if promoting general-dynamic TLS access model to local-dynamic is desirable for DECL.
References cfun, symtab_node::get(), have_optimized_refs(), IPA, symbol_table::state, and symtab.
Referenced by decl_default_tls_model().
◆ output_addressed_constants()
|
static |
Find all the constants whose addresses are referenced inside of EXP, and make sure assembler code with a label has been output for each one. Indicate whether an ADDR_EXPR has been encountered.
References CASE_CONVERT, CONSTANT_CLASS_P, CONSTRUCTOR_ELTS, DECL_INITIAL, exp(), FOR_EACH_CONSTRUCTOR_VALUE, gcc_fallthrough, handled_component_p(), output_addressed_constants(), output_constant_def(), TREE_CODE, and TREE_OPERAND.
Referenced by add_constant_to_table(), assemble_asm(), assemble_variable(), output_addressed_constants(), and output_constant_def_contents().
◆ output_constant()
|
static |
Output assembler code for constant EXP, with no label. This includes the pseudo-op such as ".int" or ".byte", and a newline. Assumes output_addressed_constants has been done on EXP already. Generate at least SIZE bytes of assembler data, padding at the end with zeros if necessary. SIZE must always be specified. The returned value is the actual number of bytes of assembler data generated, which may be bigger than SIZE if the object contains a variable length field. SIZE is important for structure constructors, since trailing members may have been omitted from the constructor. It is also important for initialization of arrays from string constants since the full length of the string constant might not be wanted. It is also needed for initialization of unions, where the initializer's type is just one member, and that may not be as long as the union. There a case in which we would fail to output exactly SIZE bytes: for a structure constructor that wants to produce more than SIZE bytes. But such constructors will never be generated for any possible input. ALIGN is the alignment of the data in bits. If REVERSE is true, EXP is output in reverse storage order.
References bitint_info::abi_limb_mode, as_a(), asm_out_file, assemble_integer(), assemble_real(), assemble_string(), assemble_zeros(), bitint_info::big_endian, build1(), build_int_cst(), build_nonstandard_integer_type(), CEIL, check_string_literal(), CONSTRUCTOR_ELTS, CONVERT_EXPR_P, error(), exp(), expand_expr(), EXPAND_INITIALIZER, flip_storage_order(), fold_convert, wide_int_storage::from(), gcc_assert, gcc_checking_assert, gcc_unreachable, GET_MODE_ALIGNMENT, GET_MODE_PRECISION(), GET_MODE_SIZE(), HOST_BITS_PER_WIDE_INT, i, int_size_in_bytes(), bitint_info::limb_mode, MIN, min_align(), NULL, NULL_RTX, output_constant(), output_constructor(), POINTER_TYPE_P, wi::rshift(), SCALAR_FLOAT_TYPE_MODE, SCALAR_INT_TYPE_MODE, SCALAR_TYPE_MODE, targetm, wi::to_wide(), TREE_CODE, TREE_IMAGPART, TREE_INT_CST_ELT, TREE_INT_CST_EXT_NUNITS, tree_int_cst_sgn(), TREE_OPERAND, TREE_REAL_CST, TREE_REALPART, TREE_STRING_LENGTH, TREE_STRING_POINTER, tree_to_shwi(), TREE_TYPE, TYPE_ADDR_SPACE, TYPE_MODE, TYPE_PRECISION, TYPE_SIGN, UNSIGNED, vec_safe_is_empty(), VECTOR_CST_ELT, VECTOR_CST_NELTS, and wide_int_to_tree().
Referenced by assemble_constant_contents(), assemble_variable_contents(), output_constant(), output_constructor_array_range(), and output_constructor_regular_field().
◆ output_constant_def()
Return an rtx representing a reference to constant data in memory for the constant expression EXP. If assembler code for such a constant has already been output, return an rtx to refer to it. Otherwise, output such a constant in memory and generate an rtx for it. If DEFER is nonzero, this constant can be deferred and output only if referenced in the function after all optimizations. `const_desc_table' records which constants already have label strings.
References add_constant_to_table(), exp(), maybe_output_constant_def_contents(), and constant_descriptor_tree::rtl.
Referenced by expand_expr_constant(), make_decl_rtl(), and output_addressed_constants().
◆ output_constant_def_contents()
|
static |
We must output the constant data referred to by SYMBOL; do so.
References asan_protect_global(), ASAN_RED_ZONE_SIZE, asan_red_zone_size(), asm_out_file, assemble_constant_contents(), assemble_zeros(), section::common, DECL_ALIGN, DECL_IN_CONSTANT_POOL, DECL_INITIAL, symtab_node::definition_alignment(), exp(), section_common::flags, floor_log2(), symtab_node::get(), get_constant_section(), get_constant_size(), MAX, output_addressed_constants(), place_block_symbol(), SANITIZE_ADDRESS, SECTION_MERGE, SECTION_STRINGS, SET_DECL_ALIGN, switch_to_section(), SYMBOL_REF_BLOCK, SYMBOL_REF_DECL, SYMBOL_REF_HAS_BLOCK_INFO_P, TREE_ASM_WRITTEN, TREE_CODE, VAR_P, and XSTR.
Referenced by assemble_variable(), mark_constants_in_pattern(), and maybe_output_constant_def_contents().
◆ output_constant_pool()
|
static |
Mark all constants that are used in the current function, then write out the function's private constant pool.
References asm_out_file, crtl, mark_constant_pool(), rtx_constant_pool::offset, output_constant_pool_contents(), and recompute_pool_offsets().
Referenced by assemble_end_function(), and assemble_start_function().
◆ output_constant_pool_1()
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static |
Worker function for output_constant_pool. Emit constant DESC, giving it ALIGN bits of alignment.
References constant_descriptor_rtx::align, asm_out_file, assemble_align(), section::common, constant_descriptor_rtx::constant, rtx_insn::deleted(), section_common::flags, gcc_assert, GET_CODE, GET_MODE_BITSIZE(), in_section, label_ref_label(), constant_descriptor_rtx::labelno, constant_descriptor_rtx::mode, NOTE_KIND, NOTE_P, output_constant_pool_2(), SECTION_MERGE, targetm, and XEXP.
Referenced by output_constant_pool_contents(), and output_object_block().
◆ output_constant_pool_2()
|
static |
Worker function for output_constant_pool_1. Emit assembly for X in MODE with known alignment ALIGN.
References constant_descriptor_rtx::align, as_a(), assemble_integer(), assemble_real(), CONST_DOUBLE_AS_FLOAT_P, CONST_DOUBLE_REAL_VALUE, CONST_VECTOR_ELT, gcc_assert, gcc_unreachable, gen_int_mode(), GET_CODE, GET_MODE_BITSIZE(), GET_MODE_CLASS, GET_MODE_INNER, GET_MODE_MASK, GET_MODE_NUNITS(), GET_MODE_PRECISION(), GET_MODE_SIZE(), i, int_mode_for_size(), INTVAL, MAX, MIN, constant_descriptor_rtx::mode, output_constant_pool_2(), and opt_mode< T >::require().
Referenced by output_constant_pool_1(), and output_constant_pool_2().
◆ output_constant_pool_contents()
|
static |
Write all the constants in POOL.
References constant_descriptor_rtx::align, asm_out_file, constant_descriptor_rtx::constant, rtx_constant_pool::first, gcc_checking_assert, gcc_unreachable, HOST_WIDE_INT_PRINT_DEC, constant_descriptor_rtx::mark, constant_descriptor_rtx::mode, constant_descriptor_rtx::next, constant_descriptor_rtx::offset, output_constant_pool_1(), place_block_symbol(), switch_to_section(), constant_descriptor_rtx::sym, SYMBOL_REF_BLOCK, SYMBOL_REF_HAS_BLOCK_INFO_P, TARGET_SUPPORTS_ALIASES, targetm, and XSTR.
Referenced by output_constant_pool(), and output_shared_constant_pool().
◆ output_constructor()
|
static |
Subroutine of output_constant, used for CONSTRUCTORs (aggregate constants). Generate at least SIZE bytes, padding if necessary. OUTER designates the caller output state of relevance in recursive invocations.
References AGGREGATE_TYPE_P, oc_local_state::align, ASM_COMMENT_START, asm_out_file, assemble_integer(), assemble_zeros(), oc_outer_state::bit_offset, build_nonstandard_integer_type(), oc_local_state::byte, oc_outer_state::byte, oc_local_state::byte_buffer_in_use, CONSTRUCTOR_BITFIELD_P, CONSTRUCTOR_ELTS, DECL_CHAIN, DECL_NAME, exp(), oc_local_state::exp, oc_local_state::field, fold_unary, gcc_assert, GEN_INT, HOST_BITS_PER_WIDE_INT, IDENTIFIER_POINTER, constructor_elt::index, oc_local_state::index, integer_zero_node, oc_local_state::last_relative_index, oc_local_state::min_index, NULL, NULL_TREE, output_constructor_array_range(), output_constructor_bitfield(), output_constructor_regular_field(), RECORD_OR_UNION_TYPE_P, oc_local_state::reverse, oc_local_state::size, STRIP_NOPS, oc_local_state::total_bytes, TREE_CODE, TREE_TYPE, oc_local_state::type, TYPE_DOMAIN, TYPE_FIELDS, TYPE_MIN_VALUE, TYPE_PRECISION, TYPE_REVERSE_STORAGE_ORDER, oc_local_state::val, constructor_elt::value, and vec_safe_iterate().
Referenced by output_constant(), and output_constructor_bitfield().
◆ output_constructor_array_range()
|
static |
Helper for output_constructor. From the current LOCAL state, output a RANGE_EXPR element.
References oc_local_state::align, assemble_zeros(), gcc_assert, oc_local_state::index, int_size_in_bytes(), min_align(), oc_local_state::min_index, NULL_TREE, output_constant(), oc_local_state::reverse, wi::sext(), sizetype, wi::to_offset(), oc_local_state::total_bytes, TREE_OPERAND, tree_to_shwi(), TREE_TYPE, oc_local_state::type, TYPE_PRECISION, TYPE_SIZE_UNIT, and oc_local_state::val.
Referenced by output_constructor().
◆ output_constructor_bitfield()
|
static |
Helper for output_constructor. From the LOCAL state, output an element that is a true bitfield or part of an outer one. BIT_OFFSET is the offset from the start of a possibly ongoing outer byte buffer.
References assemble_integer(), assemble_zeros(), oc_outer_state::bit_offset, oc_local_state::byte, oc_outer_state::byte, oc_local_state::byte_buffer_in_use, DECL_NAME, DECL_SIZE, end(), error(), wi::extract_uhwi(), oc_local_state::field, gcc_assert, GEN_INT, HOST_BITS_PER_WIDE_INT, oc_local_state::index, int_bit_position(), integer_zero_node, oc_local_state::last_relative_index, MIN, oc_local_state::min_index, NULL_TREE, output_constructor(), oc_local_state::reverse, wi::to_widest(), oc_local_state::total_bytes, TREE_CODE, TREE_OPERAND, tree_to_uhwi(), TREE_TYPE, oc_local_state::type, TYPE_SIZE, and oc_local_state::val.
Referenced by output_constructor().
◆ output_constructor_regular_field()
|
static |
Helper for output_constructor. From the current LOCAL state, output a field element that is not true bitfield or part of an outer one.
References oc_local_state::align, array_size_for_constructor(), assemble_integer(), assemble_string(), assemble_zeros(), oc_local_state::byte, oc_local_state::byte_buffer_in_use, DECL_CHAIN, DECL_SIZE_UNIT, oc_local_state::field, gcc_assert, gcc_checking_assert, GEN_INT, oc_local_state::index, int_byte_position(), int_size_in_bytes(), min_align(), oc_local_state::min_index, NULL_TREE, output_constant(), RAW_DATA_LENGTH, RAW_DATA_POINTER, oc_local_state::reverse, wi::sext(), sizetype, wi::to_offset(), oc_local_state::total_bytes, TREE_CODE, tree_to_uhwi(), TREE_TYPE, oc_local_state::type, TYPE_DOMAIN, TYPE_MAX_VALUE, TYPE_PRECISION, TYPE_SIZE_UNIT, and oc_local_state::val.
Referenced by output_constructor().
◆ output_file_directive()
| void output_file_directive | ( | FILE * | asm_file, |
| const char * | input_name ) |
Output a file name in the form wanted by System V.
References NULL, remap_debug_filename(), and targetm.
Referenced by default_file_start().
◆ output_object_block()
|
static |
Output the objects in BLOCK.
References object_block::alignment, object_block::anchors, asan_protect_global(), asan_red_zone_size(), assemble_align(), assemble_constant_contents(), assemble_variable_contents(), assemble_zeros(), section::common, CONSTANT_POOL_ADDRESS_P, named_section::decl, DECL_ALIGN, DECL_INITIAL, DECL_SIZE_UNIT, section_common::flags, FOR_EACH_VEC_ELT, FOR_EACH_VEC_SAFE_ELT, gcc_checking_assert, get_constant_size(), GET_MODE_SIZE(), handle_vtv_comdat_section(), i, constant_descriptor_rtx::mode, named_section::name, section::named, object_block::objects, offset, output_constant_pool_1(), SANITIZE_ADDRESS, object_block::sect, SECTION_MERGE, SECTION_NAMED, SECTION_STYLE, switch_to_section(), SYMBOL_REF_BLOCK_OFFSET, SYMBOL_REF_CONSTANT, SYMBOL_REF_DECL, targetm, TREE_CODE, TREE_CONSTANT_POOL_ADDRESS_P, tree_to_uhwi(), and XSTR.
Referenced by output_object_blocks().
◆ output_object_block_compare()
|
static |
A callback for qsort to compare object_blocks.
References section::common, f1, f2, section_common::flags, named_section::name, section::named, object_block::sect, SECTION_NAMED, and y.
Referenced by output_object_blocks().
◆ output_object_blocks()
| void output_object_blocks | ( | void | ) |
Output the definitions of all object_blocks.
References FOR_EACH_HASH_TABLE_ELEMENT, FOR_EACH_VEC_ELT, i, object_block_htab, output_object_block(), and output_object_block_compare().
Referenced by compile_file().
◆ output_section_asm_op()
| void output_section_asm_op | ( | const char * | directive | ) |
Output DIRECTIVE (a C string) followed by a newline. This is used as a get_unnamed_section callback.
References asm_out_file.
Referenced by init_varasm_once().
◆ output_shared_constant_pool()
| void output_shared_constant_pool | ( | void | ) |
Write the contents of the shared constant pool.
References optimize_constant_pool(), output_constant_pool_contents(), shared_constant_pool, and TARGET_SUPPORTS_ALIASES.
Referenced by compile_file().
◆ place_block_symbol()
| void place_block_symbol | ( | rtx | symbol | ) |
If block symbol SYMBOL has not yet been assigned an offset, place it at the end of its block.
References symtab_node::alias, constant_descriptor_rtx::align, object_block::alignment, asan_protect_global(), ASAN_RED_ZONE_SIZE, asan_red_zone_size(), CONSTANT_POOL_ADDRESS_P, symtab_node::decl, DECL_ALIGN, DECL_IN_CONSTANT_POOL, DECL_INITIAL, DECL_RTL, DECL_SIZE_UNIT, gcc_assert, gcc_checking_assert, symtab_node::get(), GET_CODE, get_constant_size(), GET_MODE_SIZE(), get_variable_align(), MAX, MEM_P, constant_descriptor_rtx::mode, object_block::objects, offset, place_block_symbol(), SANITIZE_ADDRESS, object_block::size, SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET, SYMBOL_REF_CONSTANT, SYMBOL_REF_DECL, SYMBOL_REF_HAS_BLOCK_INFO_P, TREE_CODE, TREE_CONSTANT_POOL_ADDRESS_P, tree_to_uhwi(), symtab_node::ultimate_alias_target(), vec_safe_push(), and XEXP.
Referenced by assemble_variable(), output_constant_def_contents(), output_constant_pool_contents(), place_block_symbol(), and use_anchored_address().
◆ process_pending_assemble_externals()
| void process_pending_assemble_externals | ( | void | ) |
References get_identifier(), symtab_node::name(), NULL_RTX, pending_assemble_externals, pending_libcall_symbols, targetm, TREE_CHAIN, TREE_SYMBOL_REFERENCED, TREE_VALUE, XEXP, and XSTR.
Referenced by compile_file().
◆ recompute_pool_offsets()
|
static |
Recompute the offsets of entries in POOL, and the overall size of POOL. Do this after calling mark_constant_pool to ensure that we are computing the offset values for the pool which we will actually emit.
References constant_descriptor_rtx::align, rtx_constant_pool::first, GET_MODE_SIZE(), constant_descriptor_rtx::mark, constant_descriptor_rtx::mode, constant_descriptor_rtx::next, constant_descriptor_rtx::offset, and rtx_constant_pool::offset.
Referenced by output_constant_pool().
◆ record_tm_clone_pair()
References hash_table< Descriptor, Lazy, Allocator >::create_ggc(), ggc_alloc(), NULL, and tm_clone_hash.
Referenced by ipa_tm_create_version(), ipa_tm_create_version_alias(), and ipa_tm_execute().
◆ resolution_local_p()
|
static |
Return true when RESOLUTION indicate that symbol will be bound locally within current executable or DSO.
Referenced by default_binds_local_p_3().
◆ resolution_to_local_definition_p()
|
static |
Return true when RESOLUTION indicate that symbol will be bound to the definition provided by current .o file.
Referenced by decl_binds_to_current_def_p(), and default_binds_local_p_3().
◆ resolve_unique_section()
| void resolve_unique_section | ( | tree | decl, |
| int | reloc, | ||
| int | flag_function_or_data_sections ) |
If required, set DECL_SECTION_NAME to a unique name.
References symtab_node::call_for_symbol_and_aliases(), DECL_ATTRIBUTES, DECL_COMDAT_GROUP, DECL_SECTION_NAME, symtab_node::get(), lookup_attribute(), NULL, set_implicit_section(), and targetm.
Referenced by expand_thunk(), and get_variable_section().
◆ set_implicit_section()
|
static |
Worker for resolve_unique_section.
References symtab_node::implicit_section.
Referenced by resolve_unique_section().
◆ set_user_assembler_name()
| void set_user_assembler_name | ( | tree | decl, |
| const char * | name ) |
The user has asked for a DECL to have a particular name. Set (or change) it in such a way that we don't prefix an underscore to it.
References alloca, symbol_table::change_decl_assembler_name(), get_identifier(), symtab_node::name(), NULL_RTX, SET_DECL_RTL, and symtab.
Referenced by set_builtin_user_assembler_name(), and set_user_assembler_libfunc().
◆ simplify_subtraction()
Given a MINUS expression, simplify it if both sides include the same symbol.
References r, and simplify_rtx().
Referenced by output_addr_const().
◆ strip_reg_name()
|
static |
Given NAME, a putative register name, discard any customary prefixes.
References symtab_node::name().
Referenced by decode_reg_name_and_count().
◆ supports_one_only()
| bool supports_one_only | ( | void | ) |
Returns true if the target configuration supports defining public symbols so that one of them will be chosen at link time instead of generating a multiply-defined symbol error, whether through the use of weak symbols or a target-specific mechanism for having duplicates discarded.
References SUPPORTS_ONE_ONLY, and TARGET_SUPPORTS_WEAK.
◆ switch_to_comdat_section()
Switch to a COMDAT section with COMDAT name of decl. FIXME: resolve_unique_section needs to deal better with decls with both DECL_SECTION_NAME and DECL_ONE_ONLY. Once that is fixed, this if-else statement can be replaced with a single call to "switch_to_section (sect)".
References named_section::common, DECL_COMDAT_GROUP, section_common::flags, IDENTIFIER_POINTER, in_section, named_section::name, section::named, NULL, SECTION_LINKONCE, switch_to_section(), TARGET_PECOFF, targetm, and TREE_CODE.
Referenced by default_print_patchable_function_entry(), and handle_vtv_comdat_section().
◆ switch_to_other_text_partition()
| void switch_to_other_text_partition | ( | void | ) |
Switch to the other function partition (if inside of hot section into cold section, otherwise into the hot section).
References current_function_section(), in_cold_section_p, and switch_to_section().
◆ switch_to_section()
Emit assembly code to switch to section NEW_SECTION. Do nothing if the current section is NEW_SECTION.
References unnamed_section::callback, named_section::common, section::common, unnamed_section::data, named_section::decl, DECL_ATTRIBUTES, DECL_P, DECL_SOURCE_LOCATION, section_common::flags, gcc_unreachable, in_section, inform(), lookup_attribute(), named_section::name, section::named, SECTION_DECLARED, SECTION_NAMED, SECTION_NOSWITCH, SECTION_RETAIN, SECTION_STYLE, SECTION_UNNAMED, targetm, section::unnamed, and warning().
Referenced by assemble_addr_to_section(), assemble_end_function(), assemble_start_function(), assemble_trampoline_template(), assemble_variable(), symbol_table::compile(), default_print_patchable_function_entry(), dump_tm_clone_pairs(), dwarf2out_begin_prologue(), dwarf2out_ignore_block(), dwarf2out_switch_text_section(), elf_record_gcc_switches(), file_end_indicate_exec_stack(), file_end_indicate_split_stack(), final_scan_insn_1(), find_empty_loc_ranges_at_text_label(), lhd_begin_section(), lhd_end_section(), output_btf_header(), output_comdat_type_unit(), output_comp_unit(), output_constant_def_contents(), output_constant_pool_contents(), output_ctf_header(), output_fde(), output_function_exception_table(), output_object_block(), output_pubtables(), output_ranges(), output_rnglists(), output_skeleton_debug_sections(), profile_function(), run_rtl_passes(), switch_to_comdat_section(), switch_to_eh_frame_section(), switch_to_exception_section(), switch_to_frame_table_section(), and switch_to_other_text_partition().
◆ tm_alias_pair_cmp()
|
static |
Helper comparison function for qsorting by the DECL_UID stored in alias_pair->emitted_diags.
References tm_alias_pair::uid, and y.
Referenced by finish_tm_clone_pairs().
◆ tree_output_constant_def()
Return a tree representing a reference to constant data in memory for the constant expression EXP. This is the counterpart of output_constant_def at the Tree level.
References add_constant_to_table(), exp(), varpool_node::finalize_decl(), constant_descriptor_tree::rtl, SYMBOL_REF_DECL, and XEXP.
Referenced by expand_expr_real_1(), gimple_lower_bitint(), gimplify_init_constructor(), and gimplify_init_ctor_eval().
◆ ultimate_transparent_alias_target()
Follow the IDENTIFIER_TRANSPARENT_ALIAS chain starting at *ALIAS until we find an identifier that is not itself a transparent alias. Modify the alias passed to it by reference (and all aliases on the way to the ultimate target), such that they do not have to be followed again, and return the ultimate target of the alias chain.
References symtab_node::alias, gcc_assert, IDENTIFIER_TRANSPARENT_ALIAS, TREE_CHAIN, and ultimate_transparent_alias_target().
Referenced by assemble_alias(), assemble_name_resolve(), default_assemble_visibility(), default_unique_section(), do_assemble_alias(), do_assemble_symver(), globalize_decl(), notice_global_symbol(), ultimate_transparent_alias_target(), and weak_finish().
◆ unlikely_text_section()
| section * unlikely_text_section | ( | void | ) |
Tell assembler to switch to unlikely-to-be-executed text section.
References current_function_decl, and function_section_1().
Referenced by assemble_end_function(), assemble_start_function(), and find_empty_loc_ranges_at_text_label().
◆ unlikely_text_section_p()
When called within a function context, return true if the function has been assigned a cold text section and if SECT is that section. When called outside a function context, return true if SECT is the default cold section.
References current_function_decl, and function_section_1().
◆ use_blocks_for_decl_p()
Return true if it is possible to put DECL in an object_block.
References symtab_node::alias, DECL_INITIAL, symtab_node::get(), NULL, targetm, TREE_CODE, and VAR_P.
Referenced by categorize_decl_for_section(), and make_decl_rtl().
◆ use_object_blocks_p()
|
static |
Return true if the current compilation mode benefits from having objects grouped into blocks.
Referenced by build_constant_desc(), categorize_decl_for_section(), force_const_mem(), and make_decl_rtl().
◆ varasm_cc_finalize()
| void varasm_cc_finalize | ( | ) |
References alias_pairs, anchor_labelno, bss_noswitch_section, bss_section, cold_function_name, comm_section, const_desc_htab, const_labelno, ctors_section, data_section, dtors_section, eh_frame_section, elf_fini_array_section, elf_init_array_section, exception_section, first_function_block_is_cold, first_global_object_name, in_cold_section_p, in_section, initial_trampoline, last_assemble_variable_decl, lcomm_section, NULL_TREE, object_block_htab, pending_assemble_externals, pending_libcall_symbols, readonly_data_section, saw_no_split_stack, sbss_section, sdata_section, section_htab, shared_constant_pool, size_directive_output, text_section, tls_comm_section, tm_clone_hash, trampolines_created, unnamed_sections, weak_decls, weak_global_object_name, and weakref_targets.
Referenced by toplev::finalize().
◆ weak_finish()
| void weak_finish | ( | void | ) |
Emit any pending weak declarations.
References asm_out_file, build_decl(), DECL_ARTIFICIAL, DECL_ASSEMBLER_NAME, DECL_EXTERNAL, DECL_SOURCE_LOCATION, find_decl(), IDENTIFIER_POINTER, NULL_TREE, TREE_CHAIN, TREE_CODE, TREE_NOTHROW, TREE_PUBLIC, TREE_PURPOSE, TREE_SYMBOL_REFERENCED, TREE_TYPE, TREE_USED, TREE_VALUE, ultimate_transparent_alias_target(), weak_decls, weak_finish_1(), and weakref_targets.
Referenced by compile_file().
◆ weak_finish_1()
|
static |
References asm_out_file, DECL_ASSEMBLER_NAME, IDENTIFIER_POINTER, symtab_node::name(), NULL, TREE_USED, and warning().
Referenced by weak_finish().
Variable Documentation
◆ alias_pairs
| vec<alias_pair, va_gc>* alias_pairs |
◆ anchor_labelno
|
static |
The next number to use for internal anchor labels.
Referenced by get_section_anchor(), and varasm_cc_finalize().
◆ bss_noswitch_section
| section* bss_noswitch_section |
A SECTION_NOSWITCH section used for declaring global BSS variables. May be null.
Referenced by get_variable_section(), have_global_bss_p(), init_varasm_once(), and varasm_cc_finalize().
◆ bss_section
| section* bss_section |
Referenced by default_elf_select_section(), init_varasm_once(), and varasm_cc_finalize().
◆ cold_function_name
The following global holds the "function name" for the code in the cold section of a function, if hot/cold function splitting is enabled and there was actually code that went into the cold section. A pseudo function name is needed for the cold section of code for some debugging tools that perform symbolization.
Referenced by assemble_end_function(), assemble_start_function(), final_scan_insn_1(), and varasm_cc_finalize().
◆ comm_section
| section* comm_section |
Referenced by get_variable_section(), init_varasm_once(), and varasm_cc_finalize().
◆ const_desc_htab
|
static |
◆ const_labelno
|
static |
Number for making the label on the next constant that is stored in memory.
Referenced by assemble_start_function(), assemble_static_space(), build_constant_desc(), force_const_mem(), and varasm_cc_finalize().
◆ ctors_section
| section* ctors_section |
Referenced by init_varasm_once(), and varasm_cc_finalize().
◆ data_section
| section* data_section |
◆ dtors_section
| section* dtors_section |
Referenced by init_varasm_once(), and varasm_cc_finalize().
◆ eh_frame_section
| section* eh_frame_section |
The section that holds the DWARF2 frame unwind information, when known. The section is set either by the target's init_sections hook or by the first call to switch_to_eh_frame_section.
Referenced by switch_to_eh_frame_section(), and varasm_cc_finalize().
◆ elf_fini_array_section
|
static |
Referenced by get_elf_initfini_array_priority_section(), and varasm_cc_finalize().
◆ elf_init_array_section
|
static |
Referenced by get_elf_initfini_array_priority_section(), and varasm_cc_finalize().
◆ exception_section
| section* exception_section |
The section that holds the main exception table, when known. The section is set either by the target's init_sections hook or by the first call to switch_to_exception_section.
Referenced by switch_to_exception_section(), and varasm_cc_finalize().
◆ first_function_block_is_cold
| bool first_function_block_is_cold |
The following global variable indicates if the first basic block in a function belongs to the cold partition or not.
Referenced by assemble_end_function(), assemble_function_label_final(), assemble_start_function(), decide_function_section(), dw2_output_call_site_table(), dw_loc_list(), function_section(), and varasm_cc_finalize().
◆ first_global_object_name
| const char* first_global_object_name |
Output variables, constants and external declarations, for GNU compiler. Copyright (C) 1987-2024 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/>.
This file handles generation of all the assembler code *except* the instructions of a function. This includes declarations of variables and their initial values. We also output the assembler code for constants stored in memory and are responsible for combining constants with the same value.
The (assembler) name of the first globally-visible object output.
Referenced by coverage_compute_profile_id(), get_file_function_name(), notice_global_symbol(), and varasm_cc_finalize().
◆ in_cold_section_p
| bool in_cold_section_p |
True if code for the current function is currently being directed at the cold section.
Referenced by assemble_function_label_final(), assemble_start_function(), current_function_section(), decide_function_section(), dw_loc_list(), dwarf2out_switch_text_section(), final_scan_insn_1(), secname_for_decl(), switch_to_other_text_partition(), and varasm_cc_finalize().
◆ in_section
| section* in_section |
asm_out_file's current section. This is NULL if no section has yet been selected or if we lose track of what the current section is.
Referenced by assemble_end_function(), assemble_zeros(), default_print_patchable_function_entry(), lhd_begin_section(), output_constant_pool_1(), switch_to_comdat_section(), switch_to_section(), and varasm_cc_finalize().
◆ initial_trampoline
|
static |
Assemble the static constant template for function entry trampolines. This is done at most once per compilation. Returns an RTX for the address of the template.
Referenced by assemble_trampoline_template(), and varasm_cc_finalize().
◆ last_assemble_variable_decl
| tree last_assemble_variable_decl |
The last decl for which assemble_variable was called, if it did ASM_DECLARE_OBJECT_NAME. If the last call to assemble_variable didn't do that, this holds 0.
Referenced by assemble_variable(), assemble_variable_contents(), rest_of_decl_compilation(), and varasm_cc_finalize().
◆ lcomm_section
| section* lcomm_section |
Referenced by get_variable_section(), init_varasm_once(), and varasm_cc_finalize().
◆ object_block_htab
|
static |
A table of object_blocks, indexed by section.
Referenced by get_block_for_section(), init_varasm_once(), output_object_blocks(), and varasm_cc_finalize().
◆ pending_assemble_externals
|
static |
We delay assemble_external processing until the compilation unit is finalized. This is the best we can do for right now (i.e. stage 3 of GCC 4.0) - the right thing is to delay it all the way to final. See PR 17982 for further discussion.
Referenced by assemble_external(), process_pending_assemble_externals(), and varasm_cc_finalize().
◆ pending_libcall_symbols
|
static |
A similar list of pending libcall symbols. We only want to declare symbols that are actually used in the final assembly.
Referenced by assemble_external_libcall(), process_pending_assemble_externals(), and varasm_cc_finalize().
◆ readonly_data_section
| section* readonly_data_section |
Referenced by assemble_trampoline_template(), default_elf_select_section(), default_function_rodata_section(), default_no_function_rodata_section(), default_select_rtx_section(), default_select_section(), init_varasm_once(), mergeable_constant_section(), mergeable_string_section(), shorten_branches(), switch_to_eh_frame_section(), switch_to_exception_section(), and varasm_cc_finalize().
◆ saw_no_split_stack
|
static |
Whether we saw any functions with no_split_stack.
Referenced by assemble_start_function(), file_end_indicate_split_stack(), and varasm_cc_finalize().
◆ sbss_section
| section* sbss_section |
Referenced by init_varasm_once(), and varasm_cc_finalize().
◆ sdata_section
| section* sdata_section |
Referenced by init_varasm_once(), and varasm_cc_finalize().
◆ section_htab
|
static |
Hash table of named sections.
Referenced by get_section(), init_varasm_once(), and varasm_cc_finalize().
◆ shared_constant_pool
|
static |
A pool of constants that can be shared between functions.
Referenced by force_const_mem(), init_varasm_once(), output_shared_constant_pool(), and varasm_cc_finalize().
◆ size_directive_output
| int size_directive_output |
Carry information from ASM_DECLARE_OBJECT_NAME to ASM_FINISH_DECLARE_OBJECT.
Referenced by varasm_cc_finalize().
◆ text_section
| section* text_section |
Well-known sections, each one associated with some sort of *_ASM_OP.
Referenced by assemble_end_function(), assemble_start_function(), symbol_table::compile(), dwarf2out_begin_prologue(), dwarf2out_switch_text_section(), find_empty_loc_ranges_at_text_label(), hot_function_section(), init_varasm_once(), lhd_begin_section(), run_rtl_passes(), shorten_branches(), and varasm_cc_finalize().
◆ tls_comm_section
| section* tls_comm_section |
Various forms of common section. All are guaranteed to be nonnull.
Referenced by get_variable_section(), init_varasm_once(), and varasm_cc_finalize().
◆ tm_clone_hash
|
static |
Referenced by finish_tm_clone_pairs(), get_tm_clone_pair(), record_tm_clone_pair(), and varasm_cc_finalize().
◆ trampolines_created
| int trampolines_created |
This is a generic routine suitable for use as TARGET_ASM_FILE_END which emits a special section directive used to indicate whether or not this object file needs an executable stack. This is primarily a GNU extension to ELF but could be used on other targets.
Referenced by expand_builtin_init_trampoline(), file_end_indicate_exec_stack(), and varasm_cc_finalize().
◆ unnamed_sections
|
static |
A linked list of all the unnamed sections.
Referenced by get_unnamed_section(), and varasm_cc_finalize().
◆ weak_decls
|
static |
This TREE_LIST contains any weak symbol declarations waiting to be emitted.
Referenced by assemble_external(), do_assemble_alias(), globalize_decl(), merge_weak(), varasm_cc_finalize(), and weak_finish().
◆ weak_global_object_name
| const char* weak_global_object_name |
The first weak object in the file.
Referenced by get_file_function_name(), notice_global_symbol(), and varasm_cc_finalize().
◆ weakref_targets
|
static |
This TREE_LIST contains weakref targets.
Referenced by do_assemble_alias(), globalize_decl(), varasm_cc_finalize(), and weak_finish().
