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(MAX_MOVE_MAX, MAX_UNITS_PER_WORD): New macros. 

(regno_save_mode, regno_save_mem): Use them.

From-SVN: r5102
This commit is contained in:
Doug Evans 1993-08-07 19:58:54 +00:00
parent 6706083e3a
commit dc17cfda7d
1 changed files with 12 additions and 4 deletions
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16
gcc/caller-save.c
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@ -28,19 +28,27 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "reload.h"
#include "expr.h"
#ifndef MAX_MOVE_MAX
#define MAX_MOVE_MAX MOVE_MAX
#endif
#ifndef MAX_UNITS_PER_WORD
#define MAX_UNITS_PER_WORD UNITS_PER_WORD
#endif
/* Modes for each hard register that we can save. The smallest mode is wide
enough to save the entire contents of the register. When saving the
register because it is live we first try to save in multi-register modes.
If that is not possible the save is done one register at a time. */
static enum machine_mode
regno_save_mode[FIRST_PSEUDO_REGISTER][MOVE_MAX / UNITS_PER_WORD + 1];
regno_save_mode[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MAX_UNITS_PER_WORD + 1];
/* For each hard register, a place on the stack where it can be saved,
if needed. */
static rtx
regno_save_mem[FIRST_PSEUDO_REGISTER][MOVE_MAX / UNITS_PER_WORD + 1];
regno_save_mem[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MAX_UNITS_PER_WORD + 1];
/* We will only make a register eligible for caller-save if it can be
saved in its widest mode with a simple SET insn as long as the memory
@ -49,9 +57,9 @@ static rtx
be recognized. */
static enum insn_code
reg_save_code[FIRST_PSEUDO_REGISTER][MOVE_MAX / UNITS_PER_WORD + 1];
reg_save_code[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MAX_UNITS_PER_WORD + 1];
static enum insn_code
reg_restore_code[FIRST_PSEUDO_REGISTER][MOVE_MAX / UNITS_PER_WORD + 1];
reg_restore_code[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MAX_UNITS_PER_WORD + 1];
/* Set of hard regs currently live (during scan of all insns). */