1  /* Shrink-wrapping related functions.
       2     Copyright (C) 1989-2023 Free Software Foundation, Inc.
       3  
       4  This file is part of GCC.
       5  
       6  GCC is free software; you can redistribute it and/or modify it under
       7  the terms of the GNU General Public License as published by the Free
       8  Software Foundation; either version 3, or (at your option) any later
       9  version.
      10  
      11  GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12  WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14  for more details.
      15  
      16  You should have received a copy of the GNU General Public License
      17  along with GCC; see the file COPYING3.  If not see
      18  <http://www.gnu.org/licenses/>.  */
      19  
      20  #ifndef GCC_SHRINK_WRAP_H
      21  #define GCC_SHRINK_WRAP_H
      22  
      23  #include "function.h"
      24  
      25  /* In shrink-wrap.cc.  */
      26  extern bool requires_stack_frame_p (rtx_insn *, HARD_REG_SET, HARD_REG_SET);
      27  extern void try_shrink_wrapping (edge *entry_edge, rtx_insn *prologue_seq);
      28  extern void try_shrink_wrapping_separate (basic_block first_bb);
      29  #define SHRINK_WRAPPING_ENABLED \
      30    (flag_shrink_wrap && targetm.have_simple_return ())
      31  
      32  #endif  /* GCC_SHRINK_WRAP_H  */
      33  
      34