- Generated by
1.8.1.1
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GCC Middle and Back End API Reference
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Data Structures | |
| struct | label_alignment |
| struct | debug_prefix_map |
Typedefs | |
| typedef struct debug_prefix_map | debug_prefix_map |
| typedef struct debug_prefix_map debug_prefix_map |
??? This is probably the wrong place for these.
Structure recording the mapping from source file and directory names at compile time to those to be embedded in debug information.
| void add_debug_prefix_map | ( | ) |
Record a debug file prefix mapping. ARG is the argument to -fdebug-prefix-map and must be of the form OLD=NEW.
References debug_prefix_maps, error(), map, debug_prefix_map::new_len, debug_prefix_map::new_prefix, debug_prefix_map::next, debug_prefix_map::old_len, debug_prefix_map::old_prefix, and strlen().
Referenced by insn_current_reference_address(), and shorten_branches().
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The differences in addresses between a branch and its target might grow or shrink depending on the alignment the start insn of the range (the branch for a forward branch or the label for a backward branch) starts out on; if these differences are used naively, they can even oscillate infinitely. We therefore want to compute a 'worst case' address difference that is independent of the alignment the start insn of the range end up on, and that is at least as large as the actual difference. The function align_fuzz calculates the amount we have to add to the naively computed difference, by traversing the part of the alignment chain of the start insn of the range that is in front of the end insn of the range, and considering for each alignment the maximum amount that it might contribute to a size increase. For casesi tables, we also want to know worst case minimum amounts of address difference, in case a machine description wants to introduce some common offset that is added to all offsets in a table. For this purpose, align_fuzz with a growth argument of 0 computes the appropriate adjustment.
Compute the maximum delta by which the difference of the addresses of START and END might grow / shrink due to a different address for start which changes the size of alignment insns between START and END. KNOWN_ALIGN_LOG is the alignment known for START. GROWTH should be ~0 if the objective is to compute potential code size increase, and 0 if the objective is to compute potential shrink. The return value is undefined for any other value of GROWTH.
References insn_lengths, uid_align, and uid_shuid.
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Referenced by final_scan_insn().
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Given BODY, the body of a jump instruction, alter the jump condition as required by the bits that are set in cc_status.flags. Not all of the bits there can be handled at this level in all cases. The value is normally 0. 1 means that the condition has become always true. -1 means that the condition has become always false. 2 means that COND has been altered.
References CC_STATUS::flags, reverse_condition(), and swap_condition().
| rtx alter_subreg | ( | ) |
If X is a SUBREG, try to replace it with a REG or a MEM, based on the thing it is a subreg of. Do it anyway if FINAL_P.
References byte_lowpart_offset(), gen_rtx_REG_offset(), HOST_WIDE_INT, offset, simplify_subreg(), subreg_lowpart_p(), and subreg_regno().
Referenced by alter_subregs(), cleanup_subreg_operands(), dbxout_symbol_location(), final_scan_insn(), lra_eliminate_regs_1(), output_operand(), sdbout_symbol(), simplify_operand_subreg(), and walk_alter_subreg().
| void app_disable | ( | void | ) |
Disable APP processing of subsequent output. Called from varasm.c before most kinds of output.
References app_on, and asm_out_file.
Referenced by assemble_start_function(), assemble_variable(), final_end_function(), final_scan_insn(), and output_call_frame_info().
| void app_enable | ( | void | ) |
Enable APP processing of subsequent output. Used before the output from an `asm' statement.
References app_on, and asm_out_file.
Referenced by assemble_asm(), final_scan_insn(), and output_call_frame_info().
| void asm_fprintf | ( | ) |
A poor man's fprintf, with the added features of %I, %R, %L, and %U. %R prints the value of REGISTER_PREFIX. %L prints the value of LOCAL_LABEL_PREFIX. %U prints the value of USER_LABEL_PREFIX. %I prints the value of IMMEDIATE_PREFIX. %O runs ASM_OUTPUT_OPCODE to transform what follows in the string. Also supported are %d, %i, %u, %x, %X, %o, %c, %s and %%. We handle alternate assembler dialects here, just like output_asm_insn.
References asm_out_file, do_assembler_dialects(), HOST_WIDE_INT, HOST_WIDE_INT_PRINT, memcpy(), strlen(), and user_label_prefix.
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Referenced by get_attr_length_1(), and shorten_branches().
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Given the body of an INSN known to be generated by an ASM statement, return the number of machine instructions likely to be generated for this insn. This is used to compute its length.
References asm_str_count(), and decode_asm_operands().
| int asm_str_count | ( | ) |
Return the number of machine instructions likely to be generated for the inline-asm template.
References count.
Referenced by asm_insn_count(), and estimate_num_insns().
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Given a CALL_INSN, find and return the nested CALL.
References SET.
Referenced by final_scan_insn().
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Emit lexical block notes needed to change scope from S1 to S2.
References emit_note_before().
Referenced by reemit_insn_block_notes().
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Return scope resulting from combination of S1 and S2.
Referenced by reemit_insn_block_notes().
| void cleanup_subreg_operands | ( | ) |
For each operand in INSN, simplify (subreg (reg)) so that it refers directly to the desired hard register.
References alter_subreg(), changed, df_insn_rescan(), recog_data_d::dup_loc, extract_insn_cached(), recog_data_d::n_dups, recog_data_d::n_operands, recog_data_d::operand, recog_data_d::operand_loc, recog_data, and walk_alter_subreg().
Referenced by final_scan_insn(), reload(), and split_insn().
| unsigned int compute_alignments | ( | void | ) |
Compute branch alignments based on frequency information in the CFG.
References bb_loop_depth(), CDI_DOMINATORS, cfun, dump_file, dump_flow_info(), dump_reg_info(), edge_def::flags, flow_loops_dump(), free(), free_dominance_info(), basic_block_def::frequency, get_first_label_num(), loop::header, basic_block_def::index, loop::inner, log(), basic_block_def::loop_father, loop_optimizer_finalize(), loop_optimizer_init(), max_label_num(), label_alignment::max_skip, loop::num, optimize_bb_for_size_p(), optimize_bb_for_speed_p(), optimize_function_for_size_p(), basic_block_def::preds, basic_block_def::prev_bb, and targetm.
| int dbr_sequence_length | ( | void | ) |
Return the number of slots filled in the current delayed branch sequence (we don't count the insn needing the delay slot). Zero if not in a delayed branch sequence.
References final_sequence.
| void default_function_pro_epilogue | ( | FILE * | file, |
| HOST_WIDE_INT | size | ||
| ) |
Default target function prologue and epilogue assembler output. If not overridden for epilogue code, then the function body itself contains return instructions wherever needed.
Referenced by final_start_function().
| void default_function_switched_text_sections | ( | FILE * | , |
| tree | , | ||
| bool | |||
| ) |
Default target function switched text sections.
| int default_jump_align_max_skip | ( | ) |
| int default_label_align_after_barrier_max_skip | ( | ) |
| int default_label_align_max_skip | ( | ) |
| int default_loop_align_max_skip | ( | ) |
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Helper function to parse assembler dialects in the asm string. This is called from output_asm_insn and asm_fprintf.
References asm_out_file, dialect_number, and output_operand_lossage().
Referenced by asm_fprintf(), and output_asm_insn().
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Dumper helper for basic block information. FILE is the assembly output file, and INSN is the instruction being emitted.
References asm_out_file, basic_block_def::count, dump_edge_info(), basic_block_def::frequency, HOST_WIDEST_INT_PRINT_DEC, basic_block_def::index, basic_block_def::preds, and basic_block_def::succs.
Referenced by final().
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Return true if DWARF2 debug info can be emitted for DECL.
References DWARF2_DEBUG, and VMS_AND_DWARF2_DEBUG.
Referenced by final_end_function(), and final_start_function().
| void final | ( | ) |
Output assembler code for some insns: all or part of a function. For description of args, see `final_start_function', above.
References cfun, delete_insn(), dump_basic_block_info(), final_scan_insn(), free(), get_max_uid(), init_recog(), insn_current_address, function::is_thunk, last_ignored_compare, and debug_prefix_map::next.
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References exact_log2().
| void final_end_function | ( | void | ) |
Output assembler code for the end of a function. For clarity, args are same as those of `final_start_function' even though not all of them are needed.
References app_disable(), asm_out_file, current_function_decl, debug_hooks, dwarf2_debug_info_emitted_p(), dwarf2out_do_frame(), dwarf2out_end_epilogue(), gcc_debug_hooks::end_epilogue, gcc_debug_hooks::end_function, get_frame_size(), high_function_linenum, last_filename, last_linenum, and targetm.
Referenced by rest_of_handle_final().
| int final_forward_branch_p | ( | ) |
Return 1 if branch is a forward branch. Uses insn_shuid array, so it works only in the final pass. May be used by output templates to customary add branch prediction hints.
References uid_shuid.
The final scan for one insn, INSN. Args are same as in `final', except that INSN is the insn being scanned. Value returned is the next insn to be scanned. NOPEEPHOLES is the flag to disallow peephole processing (currently used for within delayed branch sequence output). SEEN is used to track the end of the prologue, for emitting debug information. We force the emission of a line note after both NOTE_INSN_PROLOGUE_END and NOTE_INSN_FUNCTION_BEG, or at the beginning of the second basic block, whichever comes first.
References alter_cond(), alter_subreg(), app_disable(), app_enable(), asm_noperands(), asm_out_file, assemble_external(), gcc_debug_hooks::begin_block, gcc_debug_hooks::begin_epilogue, block_depth, block_nonartificial_location(), call_from_call_insn(), cc0_rtx, cc_status, cleanup_subreg_operands(), const_true_rtx, constrain_operands_cached(), current_function_decl, current_function_section(), current_insn_predicate, current_output_insn, DBX_DEBUG, debug_hooks, debug_insn, decode_asm_operands(), delete_insn(), DINFO_LEVEL_NORMAL, DINFO_LEVEL_VERBOSE, discriminator, dump_flags, dump_insn_slim(), DWARF2_DEBUG, dwarf2out_do_frame(), dwarf2out_emit_cfi(), dwarf2out_switch_text_section(), gcc_debug_hooks::end_block, gcc_debug_hooks::end_prologue, exact_log2(), expand_location(), final_scan_insn(), final_sequence, find_reg_note(), CC_STATUS::flags, force_source_line, get_insn_template(), high_block_linenum, in_cold_section_p, insn_code_number, insn_counter, insn_noperands, gcc_debug_hooks::label, last_discriminator, last_filename, last_ignored_compare, last_linenum, recog_data_d::n_operands, need_profile_function, debug_prefix_map::next, next_nonnote_insn(), notice_source_line(), recog_data_d::operand, output_alternate_entry_point(), output_asm_insn(), override_filename, override_linenum, pc_rtx, peephole(), prev_nonnote_insn(), print_rtl_single(), print_rtx_head, profile_after_prologue(), profile_function(), recog_data, recog_memoized(), rtx_equal_p(), SDB_DEBUG, SET, gcc_debug_hooks::source_line, gcc_debug_hooks::switch_text_section, switch_to_section(), targetm, this_is_asm_operands, try_split(), validate_change(), CC_STATUS::value1, CC_STATUS::value2, gcc_debug_hooks::var_location, VMS_AND_DWARF2_DEBUG, VMS_DEBUG, and volatile_refs_p().
Referenced by final(), and final_scan_insn().
| void final_start_function | ( | rtx | first, |
| FILE * | file, | ||
| int | optimize_p | ||
| ) |
Output assembler code for the start of a function,
and initialize some of the variables in this file
for the new function. The label for the function and associated
assembler pseudo-ops have already been output in `assemble_start_function'.
FIRST is the first insn of the rtl for the function being compiled.
FILE is the file to write assembler code to.
OPTIMIZE_P is nonzero if we should eliminate redundant
test and compare insns.
References gcc_debug_hooks::begin_prologue, block_depth, current_function_decl, debug_hooks, default_function_pro_epilogue(), discriminator, dwarf2_debug_info_emitted_p(), dwarf2out_begin_prologue(), get_frame_size(), HAVE_prologue, high_block_linenum, high_function_linenum, last_discriminator, last_filename, last_linenum, leaf_renumber_regs(), need_profile_function, number_blocks(), profile_after_prologue(), profile_function(), prologue_location, reemit_insn_block_notes(), targetm, this_is_asm_operands, and warning().
Referenced by rest_of_handle_final().
| void fprint_ul | ( | ) |
Write an unsigned long as decimal to a file, fast.
References sprint_ul_rev().
Referenced by dwarf2out_source_line().
| void fprint_whex | ( | ) |
Write a HOST_WIDE_INT number in hex form 0x1234, fast.
Referenced by dw2_asm_output_data(), dw2_asm_output_data_uleb128(), and dw2_assemble_integer().
| int get_attr_length | ( | ) |
Obtain the current length of an insn. If branch shortening has been done, get its actual length. Otherwise, get its maximum length.
References get_attr_length_1().
Referenced by output_asm_name().
Obtain the current length of an insn. If branch shortening has been done, get its actual length. Otherwise, use FALLBACK_FN to calculate the length.
References asm_insn_count(), asm_noperands(), insn_lengths, and insn_lengths_max_uid.
Referenced by get_attr_length(), and get_attr_min_length().
| int get_attr_min_length | ( | ) |
Obtain the current length of an insn. If branch shortening has been done, get its actual length. Otherwise, get its minimum length.
References get_attr_length_1().
Referenced by copy_bb_p(), duplicate_computed_gotos(), dwarf2out_var_location(), get_uncond_jump_length(), and thread_prologue_and_epilogue_insns().
| const char* get_insn_template | ( | ) |
References insn_data_d::function, insn_data, insn_data_d::multi, recog_data_d::operand, insn_data_d::output, recog_data, insn_data_d::single, and which_alternative.
Referenced by final_scan_insn().
Referenced by get_mem_expr_from_op(), and output_asm_operand_names().
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If OP is a REG or MEM and we can find a MEM_EXPR corresponding to it or its address, return that expr . Set *PADDRESSP to 1 if the expr corresponds to the address of the object and 0 if to the object.
References get_mem_expr_from_op(), and RTX_BIN_ARITH.
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Grow the LABEL_ALIGN array after new labels are created.
References max_label_num(), max_labelno, and memset().
Referenced by shorten_branches(), and update_alignments().
| void init_final | ( | ) |
Initialize data in final at the beginning of a compilation.
References app_on, dialect_number, and final_sequence.
Referenced by do_compile().
| void init_insn_lengths | ( | void | ) |
Indicate that branch shortening hasn't yet been done.
References free(), insn_lengths, insn_lengths_max_uid, uid_align, and uid_shuid.
Referenced by expand_thunk(), and rest_of_clean_state().
| int insn_current_reference_address | ( | ) |
Compute a worst-case reference address of a branch so that it can be safely used in the presence of aligned labels. Since the size of the branch itself is unknown, the size of the branch is not included in the range. I.e. for a forward branch, the reference address is the end address of the branch as known from the previous branch shortening pass, minus a value to account for possible size increase due to alignment. For a backward branch, it is the start address of the branch as known from the current pass, plus a value to account for possible size increase due to alignment. NB.: Therefore, the maximum offset allowed for backward branches needs to exclude the branch size.
References align_fuzz(), insn_current_address, insn_last_address, insn_lengths, and length_unit_log.
| int label_to_alignment | ( | ) |
For the benefit of port specific code do this also as a function.
| int label_to_max_skip | ( | ) |
| int leaf_function_p | ( | void | ) |
Return nonzero if this function has no function calls.
References get_insns().
Referenced by ira(), and rest_of_handle_check_leaf_regs().
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Referenced by final_start_function().
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Scan all instructions and renumber all registers into those available in leaf functions.
References leaf_renumber_regs_insn().
| void leaf_renumber_regs_insn | ( | ) |
Scan IN_RTX and its subexpressions, and renumber all regs into those available in leaf functions.
References df_set_regs_ever_live().
Referenced by dbxout_parms(), dbxout_symbol(), leaf_renumber_regs(), and sdbout_symbol().
| rtl_opt_pass* make_pass_clean_state | ( | ) |
| rtl_opt_pass* make_pass_compute_alignments | ( | ) |
| rtl_opt_pass* make_pass_final | ( | ) |
| rtl_opt_pass* make_pass_shorten_branches | ( | ) |
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Helper rtx-iteration-function for mark_symbol_refs_as_used and output_operand. Marks SYMBOL_REFs as referenced through use of assemble_external.
References assemble_external().
Referenced by mark_symbol_refs_as_used(), and output_operand().
| void mark_symbol_refs_as_used | ( | ) |
Marks SYMBOL_REFs in x as referenced through use of assemble_external.
References for_each_rtx(), and mark_symbol_ref_as_used().
| void no_asm_to_stream | ( | ) |
Default target hook that outputs nothing to a stream.
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Referenced by final_scan_insn().
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Return whether a source line note needs to be emitted before INSN. Sets IS_STMT to TRUE if the line should be marked as a possible breakpoint location.
References discriminator, force_source_line, high_block_linenum, high_function_linenum, insn_file(), insn_line(), last_discriminator, last_filename, last_linenum, override_filename, and override_linenum.
| int only_leaf_regs_used | ( | void | ) |
On some machines, a function with no call insns can run faster if it doesn't create its own register window. When output, the leaf function should use only the "output" registers. Ordinarily, the function would be compiled to use the "input" registers to find its arguments; it is a candidate for leaf treatment if it uses only the "input" registers. Leaf function treatment means renumbering so the function uses the "output" registers instead.
Return 1 if this function uses only the registers that can be safely renumbered.
References df_regs_ever_live_p(), and global_regs.
Referenced by rest_of_handle_check_leaf_regs().
| void output_addr_const | ( | ) |
Print an integer constant expression in assembler syntax. Addition and subtraction are the only arithmetic that may appear in these expressions.
References assemble_external(), assemble_name(), HOST_WIDE_INT, HOST_WIDE_INT_PRINT_DEC, HOST_WIDE_INT_PRINT_DOUBLE_HEX, HOST_WIDE_INT_PRINT_HEX, output_operand_lossage(), simplify_subtraction(), and targetm.
Referenced by assemble_integer_with_op(), dw2_assemble_integer(), dwarf2out_do_cfi_startproc(), and output_asm_insn().
| void output_address | ( | ) |
Print a memory reference operand for address X using machine-dependent assembler syntax.
References asm_out_file, changed, targetm, and walk_alter_subreg().
Referenced by output_asm_insn().
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Referenced by final_scan_insn().
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Emit the appropriate declaration for an alternate-entry-point symbol represented by INSN, to FILE. INSN is a CODE_LABEL with LABEL_KIND != LABEL_NORMAL. The case fall-through in this function is intentional.
References LABEL_GLOBAL_ENTRY, LABEL_NORMAL, LABEL_STATIC_ENTRY, LABEL_WEAK_ENTRY, and targetm.
| void output_asm_insn | ( | ) |
Output text from TEMPLATE to the assembler output file,
obeying %-directions to substitute operands taken from
the vector OPERANDS.
%N (for N a digit) means print operand N in usual manner.
%lN means require operand N to be a CODE_LABEL or LABEL_REF
and print the label name with no punctuation.
%cN means require operand N to be a constant
and print the constant expression with no punctuation.
%aN means expect operand N to be a memory address
(not a memory reference!) and print a reference
to that address.
%nN means expect operand N to be a constant
and print a constant expression for minus the value
of the operand, with no other punctuation.
References asm_out_file, do_assembler_dialects(), HOST_WIDE_INT_PRINT_DEC, insn_counter, insn_noperands, memset(), output_addr_const(), output_address(), output_asm_label(), output_asm_name(), output_asm_operand_names(), output_operand(), output_operand_lossage(), targetm, and this_is_asm_operands.
Referenced by final_scan_insn().
| void output_asm_label | ( | ) |
Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol.
References asm_out_file, assemble_name(), and output_operand_lossage().
Referenced by output_asm_insn().
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Output of assembler code from a template, and its subroutines.
Annotate the assembly with a comment describing the pattern and alternative used.
References asm_out_file, debug_insn, get_attr_length(), insn_data, n_alternatives(), and which_alternative.
Referenced by output_asm_insn().
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Referenced by output_asm_insn().
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Output operand names for assembler instructions. OPERANDS is the operand vector, OPORDER is the order to write the operands, and NOPS is the number of operands to write.
References asm_out_file, get_mem_expr_from_op(), and print_mem_expr().
| void output_operand | ( | ) |
Print operand X using machine-dependent assembler syntax. CODE is a non-digit that preceded the operand-number in the % spec, such as 'z' if the spec was `%z3'. CODE is 0 if there was no char between the % and the digits. When CODE is a non-letter, X is 0. The meanings of the letters are machine-dependent and controlled by TARGET_PRINT_OPERAND.
References alter_subreg(), asm_out_file, for_each_rtx(), mark_symbol_ref_as_used(), and targetm.
Referenced by output_asm_insn().
| void output_operand_lossage | ( | ) |
Report inconsistency between the assembler template and the operands. In an `asm', it's the user's fault; otherwise, the compiler's fault.
References error_for_asm(), free(), internal_error(), and this_is_asm_operands.
Referenced by crash_signal(), do_assembler_dialects(), output_addr_const(), output_asm_insn(), and output_asm_label().
| void output_quoted_string | ( | ) |
Output a quoted string.
Referenced by dbxout_begin_simple_stabs(), dbxout_begin_simple_stabs_desc(), default_asm_output_source_filename(), maybe_emit_file(), and xcoffout_source_file().
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Referenced by final_scan_insn(), and final_start_function().
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References profile_function(), and targetm.
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Referenced by final_scan_insn(), final_start_function(), and profile_after_prologue().
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Rebuild all the NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes based on the scope tree and the newly reordered instructions.
References active_insn_p(), cfun, change_scope(), choose_inner_scope(), function::decl, delete_insn(), emit_note(), emit_note_after(), emit_note_before(), get_insns(), insn_scope(), and reorder_blocks().
Referenced by final_start_function().
| const char* remap_debug_filename | ( | ) |
Perform user-specified mapping of debug filename prefixes. Return the new name corresponding to FILENAME.
References map, memcpy(), debug_prefix_map::new_len, debug_prefix_map::new_prefix, debug_prefix_map::next, debug_prefix_map::old_len, debug_prefix_map::old_prefix, and strlen().
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References cfun, cgraph_rtl_info(), current_function_decl, decl_binds_to_current_def_p(), delete_tree_ssa(), dump_flags, dump_function_header(), epilogue_completed, error(), final_insns_dump_p, flag_dump_unnumbered, flag_rerun_cse_after_global_opts, free_after_compilation(), free_after_parsing(), free_bb_for_insn(), get_insns(), init_insn_lengths(), init_recog_no_volatile(), init_temp_slots(), pref, cgraph_rtl_info::preferred_incoming_stack_boundary, print_rtl_single(), regstack_completed, reload_completed, SDB_DEBUG, and sdbout_types().
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Turn the RTL into assembly.
References asm_out_file, assemble_end_function(), assemble_start_function(), current_function_decl, debug_hooks, decl_fini_priority_lookup(), decl_init_priority_lookup(), final_end_function(), final_start_function(), free_reg_info(), gcc_debug_hooks::function_decl, get_insns(), output_function_exception_table(), targetm, timevar_pop(), timevar_push(), and user_defined_section_attribute.
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References get_insns(), and shorten_branches().
| void shorten_branches | ( | ) |
Make a pass over all insns and compute their actual lengths by shortening any branches of variable length if possible.
shorten_branches might be called multiple times: for example, the SH port splits out-of-range conditional branches in MACHINE_DEPENDENT_REORG. In order to do this, it needs proper length information, which it obtains by calling shorten_branches. This cannot be collapsed with shorten_branches itself into a single pass unless we also want to integrate reorg.c, since the branch splitting exposes new instructions with delay slots.
References align_fuzz(), asm_insn_count(), asm_noperands(), addr_diff_vec_flags::base_after_vec, free(), get_insns(), get_last_insn(), get_max_uid(), grow_label_align(), insn_current_address, insn_current_align, insn_last_address, insn_lengths, insn_lengths_max_uid, len, log(), addr_diff_vec_flags::max_after_base, addr_diff_vec_flags::max_after_vec, max_label_num(), max_uid, memset(), addr_diff_vec_flags::min_after_base, addr_diff_vec_flags::min_after_vec, min_align(), addr_diff_vec_flags::min_align, next_nonnote_insn(), readonly_data_section, targetm, text_section, uid_align, and uid_shuid.
Referenced by rest_of_handle_shorten_branches().
| int sprint_ul | ( | ) |
Write an unsigned long as decimal to a string, fast. s must be wide enough to not overflow, at least 21 chars. Returns the length of the string (without terminating '\0').
References len, and sprint_ul_rev().
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Internal function that prints an unsigned long in decimal in reverse. The output string IS NOT null-terminated.
Referenced by fprint_ul(), and sprint_ul().
| void update_alignments | ( | ) |
Update the already computed alignment information. LABEL_PAIRS is a vector made up of pairs of labels for which the alignment information of the first element will be copied from that of the second element.
References grow_label_align(), and max_label_num().
Referenced by dbr_schedule().
Referenced by cleanup_subreg_operands(), output_address(), and walk_alter_subreg().
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Do alter_subreg on all the SUBREGs contained in X.
References alter_subreg(), and walk_alter_subreg().
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Nonzero if have enabled APP processing of our assembler output.
Referenced by app_disable(), app_enable(), and init_final().
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Number of unmatched NOTE_INSN_BLOCK_BEG notes we have seen.
Referenced by final_scan_insn(), and final_start_function().
| CC_STATUS cc_prev_status |
During output of an insn, this contains a copy of cc_status from before the insn.
| CC_STATUS cc_status |
This variable contains machine-dependent flags (defined in tm.h) set and examined by output routines that describe how to interpret the condition codes properly.
Referenced by final_scan_insn().
| rtx current_insn_predicate |
Nonnull if the insn currently being emitted was a COND_EXEC pattern.
Referenced by final_scan_insn().
| rtx current_output_insn |
Last insn processed by final_scan_insn.
Referenced by final_scan_insn().
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Last insn processed by final_scan_insn.
Referenced by df_note_bb_compute(), final_scan_insn(), and output_asm_name().
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Linked list of such structures.
Referenced by add_debug_prefix_map().
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Number of the assembler dialect to use, starting at 0.
Referenced by do_assembler_dialects(), and init_final().
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Discriminator of current block.
Referenced by dwarf2out_source_line(), final_scan_insn(), final_start_function(), and notice_source_line().
| bool final_insns_dump_p |
True if printing into -fdump-final-insns= dump.
Referenced by print_rtx(), and rest_of_clean_state().
| rtx final_sequence |
If we are outputting an insn sequence, this contains the sequence rtx. Zero otherwise.
Referenced by dbr_sequence_length(), final_scan_insn(), and init_final().
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Whether to force emission of a line note before the next insn.
Referenced by final_scan_insn(), and notice_source_line().
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Highest line number in current block.
Referenced by final_scan_insn(), final_start_function(), and notice_source_line().
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Likewise for function.
Referenced by final_end_function(), final_start_function(), and notice_source_line().
| vec<int> insn_addresses_ |
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Assign a unique number to each insn that is output. This can be used to generate unique local labels.
Referenced by final_scan_insn(), and output_asm_insn().
| int insn_current_address |
Address of insn being processed. Used by `insn_current_length'.
Referenced by final(), insn_current_reference_address(), and shorten_branches().
| int insn_current_align |
known invariant alignment of insn being processed.
Referenced by shorten_branches().
| int insn_last_address |
Address of insn being processed in previous iteration.
Referenced by insn_current_reference_address(), and shorten_branches().
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The next two pages contain routines used to compute the length of an insn and to shorten branches.
Arrays for insn lengths, and addresses. The latter is referenced by `insn_current_length'.
Referenced by align_fuzz(), get_attr_length_1(), init_insn_lengths(), insn_current_reference_address(), and shorten_branches().
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Max uid for which the above arrays are valid.
Referenced by get_attr_length_1(), init_insn_lengths(), and shorten_branches().
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Number of operands of this insn, for an `asm' with operands.
Referenced by final_scan_insn(), and output_asm_insn().
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Last discriminator written to assembly.
Referenced by final_scan_insn(), final_start_function(), and notice_source_line().
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Filename of last NOTE.
Referenced by final_end_function(), final_scan_insn(), final_start_function(), and notice_source_line().
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Compare optimization flag.
Referenced by final(), and final_scan_insn().
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Line number of last NOTE.
Referenced by final_end_function(), final_scan_insn(), final_start_function(), and notice_source_line().
| const int length_unit_log |
Referenced by insn_current_reference_address(), and write_length_unit_log().
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Referenced by grow_label_align().
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Referenced by reload_combine().
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True if profile_function should be called, but hasn't been called yet.
Referenced by final_scan_insn(), and final_start_function().
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Override filename and line number.
Referenced by final_scan_insn(), and notice_source_line().
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Referenced by final_scan_insn(), and notice_source_line().
| rtx this_is_asm_operands |
Nonzero while outputting an `asm' with operands. This means that inconsistencies are the user's fault, so don't die. The precise value is the insn being output, to pass to error_for_asm.
Referenced by crash_signal(), final_scan_insn(), final_start_function(), output_asm_insn(), and output_operand_lossage().
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Referenced by align_fuzz(), init_insn_lengths(), and shorten_branches().
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Referenced by align_fuzz(), final_forward_branch_p(), init_insn_lengths(), and shorten_branches().
1.8.1.1