53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
/* Shrink-wrapping related functions.
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Copyright (C) 1989-2014 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_SHRINK_WRAP_H
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#define GCC_SHRINK_WRAP_H
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#include "hashtab.h"
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#include "vec.h"
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#include "machmode.h"
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#ifdef HAVE_simple_return
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/* In function.c. */
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extern void emit_return_into_block (bool simple_p, basic_block bb);
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extern bool active_insn_between (rtx head, rtx tail);
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extern vec<edge> convert_jumps_to_returns (basic_block last_bb, bool simple_p,
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vec<edge> unconverted);
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extern basic_block emit_return_for_exit (edge exit_fallthru_edge,
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bool simple_p);
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/* In shrink-wrap.c. */
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extern bool requires_stack_frame_p (rtx, HARD_REG_SET, HARD_REG_SET);
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extern void prepare_shrink_wrap (basic_block entry_block);
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extern void dup_block_and_redirect (basic_block bb, basic_block copy_bb,
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rtx before, bitmap_head *need_prologue);
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extern void try_shrink_wrapping (edge *entry_edge, edge orig_entry_edge,
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bitmap_head *bb_flags, rtx prologue_seq);
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extern edge get_unconverted_simple_return (edge, bitmap_head,
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vec<edge> *, rtx *);
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extern void convert_to_simple_return (edge entry_edge, edge orig_entry_edge,
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bitmap_head bb_flags, rtx returnjump,
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vec<edge> unconverted_simple_returns);
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#endif
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#endif /* GCC_SHRINK_WRAP_H */
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