diff options
Diffstat (limited to 'gcc_arm/range.h')
| -rwxr-xr-x | gcc_arm/range.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/gcc_arm/range.h b/gcc_arm/range.h new file mode 100755 index 0000000..20d1d4f --- /dev/null +++ b/gcc_arm/range.h @@ -0,0 +1,57 @@ +/* CYGNUS LOCAL LRS */ +/* Allocate registers within a basic block, for GNU compiler. + Copyright (C) 1997, 1998 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC 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 2, or (at your option) +any later version. + +GNU CC 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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* Global declarations for live range support. */ +/* Linked list of live ranges to try allocating registers in first before + allocating all of the remaining registers. */ +extern rtx live_range_list; + +/* # of distinct ranges seen so far */ +extern int range_max_unique; + +/* Bits for the different live range copy options. */ +/* Allow copys from original register into new register */ +#define LIVE_RANGE_COPYIN 0x1 + +/* Allow copys from new register back into original register */ +#define LIVE_RANGE_COPYOUT 0x2 + +/* Allow copies from constant integers */ +#define LIVE_RANGE_COPYIN_CONST 0x4 + +/* Default value for using GDB specific stabs to denote live ranges */ +#define LIVE_RANGE_GDB_DEFAULT 1 + +/* Default value for creating scoping blocks for live ranges */ +#define LIVE_RANGE_SCOPE_DEFAULT 0 + +/* Determine whether or not to use new style stabs for live range debugging. + Assumes that write_symbols == DBX_DEBUG has already been checked for. */ +#define LIVE_RANGE_GDBSTAB_P() (use_gnu_debug_info_extensions \ + && flag_live_range_gdb) + +/* Live range functions */ +#ifdef BUFSIZ +extern void live_range_print PROTO((FILE *, rtx, char *, char *)); +extern int live_range PROTO((rtx, FILE *)); +#endif +extern void init_live_range PROTO((void)); +/* END CYGNUS LOCAL LRS */ |