cfgbuild.h File Reference

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Functions
bool	inside_basic_block_p (const rtx_insn *)
bool	control_flow_insn_p (const rtx_insn *)
void	rtl_make_eh_edge (sbitmap, basic_block, rtx)
void	find_many_sub_basic_blocks (sbitmap)
void	find_sub_basic_blocks (basic_block)

Function Documentation

control_flow_insn_p()

bool control_flow_insn_p ( const rtx_insn * insn )

extern

Return true if INSN may cause control flow transfer, so it should be last in
the basic block.   

References can_nonlocal_goto(), can_throw_internal(), cfun, const1_rtx, find_reg_note(), gcc_unreachable, GET_CODE, ggc_alloc(), PATTERN(), SIBLING_CALL_P, and XEXP.

Referenced by add_labels_and_missing_jumps(), dce_process_block(), decompose_multiword_subregs(), emit_common_tails_for_components(), emit_moves(), find_bb_boundaries(), find_moveable_pseudos(), reload_combine(), rtl_verify_bb_insns(), try_head_merge_bb(), unify_moves(), and word_dce_process_block().

find_many_sub_basic_blocks()

void find_many_sub_basic_blocks ( sbitmap blocks )

extern

Assume that some pass has inserted labels or control flow
instructions within a basic block.  Split basic blocks as needed
and create edges.   

References any_condjump_p(), BB_END, bitmap_bit_p, BLOCK_NEW, BLOCK_ORIGINAL, BLOCK_TO_SPLIT, cfun, compute_outgoing_frequencies(), EDGE_COUNT, EXIT_BLOCK_PTR_FOR_FN, find_bb_boundaries(), FOR_BB_BETWEEN, FOR_EACH_BB_FN, ggc_alloc(), basic_block_def::index, JUMP_P, last_basic_block_for_fn, make_edges(), basic_block_def::next_bb, PROFILE_ABSENT, profile_status_for_fn, SET_STATE, STATE, basic_block_def::succs, update_br_prob_note(), and update_profile_for_new_sub_basic_block().

Referenced by break_superblocks(), lra(), reload(), split_all_insns(), and thread_prologue_and_epilogue_insns().

find_sub_basic_blocks()

void find_sub_basic_blocks ( basic_block bb )

extern

Like find_many_sub_basic_blocks, but look only within BB.   

References cfun, compute_outgoing_frequencies(), find_bb_boundaries(), ggc_alloc(), make_edges(), basic_block_def::next_bb, PROFILE_ABSENT, profile_status_for_fn, and update_profile_for_new_sub_basic_block().

Referenced by commit_one_edge_insertion(), and thread_prologue_and_epilogue_insns().

inside_basic_block_p()

bool inside_basic_block_p ( const rtx_insn * insn )

extern

Control flow graph building header file.
   Copyright (C) 2014-2024 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/>.   

Return true if insn is something that should be contained inside basic
block.   

References gcc_unreachable, GET_CODE, ggc_alloc(), JUMP_TABLE_DATA_P, and NEXT_INSN().

Referenced by find_bb_boundaries(), save_point_p(), and scan_trace().

rtl_make_eh_edge()

void rtl_make_eh_edge ( sbitmap edge_cache, basic_block src, rtx insn )

extern

Create the edges generated by INSN in REGION.   

References CALL_P, gcc_assert, get_eh_landing_pad_from_rtx(), ggc_alloc(), label_rtx(), eh_landing_pad_d::landing_pad, make_label_edge(), NULL, and eh_landing_pad_d::post_landing_pad.

Referenced by decompose_multiword_subregs(), and make_edges().