GCC Middle and Back End API Reference
lra.h File Reference

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static enum reg_class lra_get_allocno_class ()
rtx lra_create_new_reg (enum machine_mode, rtx, enum reg_class, const char *)
void lra_init_elimination (void)
rtx lra_eliminate_regs (rtx, enum machine_mode, rtx)
void lra (FILE *)
void lra_init_once (void)
void lra_init (void)
void lra_finish_once (void)


bool lra_simple_p

Function Documentation

void lra ( FILE *  )
rtx lra_create_new_reg ( enum machine_mode  md_mode,
rtx  original,
enum reg_class  rclass,
const char *  title 
   Analogous to the previous function but also inherits value of

Referenced by push_insns().

rtx lra_eliminate_regs ( rtx  x,
enum machine_mode  mem_mode,
rtx  insn 
   This function is used externally in subsequent passes of GCC.  It
   always does a full elimination of X.  
void lra_finish_once ( void  )
   Called once per compiler to finish LRA data which are initialize
static enum reg_class lra_get_allocno_class ( )
   Return the allocno reg class of REGNO.  If it is a reload pseudo,
   the pseudo should finally get hard register of the allocno
void lra_init ( void  )
   Initialize LRA whenever register-related information is changed.  
void lra_init_elimination ( void  )
   Entry function for initialization of elimination once per

References lra_dump_file, and print_elim_table().

void lra_init_once ( void  )
   Called once per compiler to initialize LRA data once.  

Variable Documentation

bool lra_simple_p

Communication between the Local Register Allocator (LRA) and the rest of the compiler. Copyright (C) 2010-2013 Free Software Foundation, Inc. Contributed by Vladimir Makarov vmaka.nosp@m.rov@.nosp@m.redha.nosp@m.t.co.nosp@m.m.

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/.

   True if the current function is too big to use regular algorithms
   in LRA. In other words, we should use simpler and faster algorithms
   in LRA.  It also means we should not worry about generation code
   for caller saves.  The value is set up in IRA.  

Referenced by split_live_ranges_for_shrink_wrap().