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avr.c (reg_class_tab): Make local to avr_regno_reg_class.

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* config/avr/avr.c (reg_class_tab): Make local to
	avr_regno_reg_class.  Return smallest register class available.

From-SVN: r178063
This commit is contained in:
Georg-Johann Lay 2011-08-25 13:50:30 +00:00 • committed by Georg-Johann Lay
parent f2814222f9
commit 61af7eb4d1
2 changed files with 29 additions and 16 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2011-08-25 Georg-Johann Lay <avr@gjlay.de>
* config/avr/avr.c (reg_class_tab): Make local to
avr_regno_reg_class. Return smallest register class available.
2011-08-25 Georg-Johann Lay <avr@gjlay.de>
* config/avr/avr.c (STR_PREFIX_P): New Define.

40
gcc/config/avr/avr.c
View file

@ -281,22 +281,6 @@ avr_option_override (void)
init_machine_status = avr_init_machine_status;
}
/* return register class from register number. */
static const enum reg_class reg_class_tab[]={
GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,
GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,
GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,GENERAL_REGS,
GENERAL_REGS, /* r0 - r15 */
LD_REGS,LD_REGS,LD_REGS,LD_REGS,LD_REGS,LD_REGS,LD_REGS,
LD_REGS, /* r16 - 23 */
ADDW_REGS,ADDW_REGS, /* r24,r25 */
POINTER_X_REGS,POINTER_X_REGS, /* r26,27 */
POINTER_Y_REGS,POINTER_Y_REGS, /* r28,r29 */
POINTER_Z_REGS,POINTER_Z_REGS, /* r30,r31 */
STACK_REG,STACK_REG /* SPL,SPH */
};
/* Function to set up the backend function structure. */
static struct machine_function *
@ -310,8 +294,32 @@ avr_init_machine_status (void)
enum reg_class
avr_regno_reg_class (int r)
{
static const enum reg_class reg_class_tab[] =
{
R0_REG,
/* r1 - r15 */
NO_LD_REGS, NO_LD_REGS, NO_LD_REGS,
NO_LD_REGS, NO_LD_REGS, NO_LD_REGS, NO_LD_REGS,
NO_LD_REGS, NO_LD_REGS, NO_LD_REGS, NO_LD_REGS,
NO_LD_REGS, NO_LD_REGS, NO_LD_REGS, NO_LD_REGS,
/* r16 - r23 */
SIMPLE_LD_REGS, SIMPLE_LD_REGS, SIMPLE_LD_REGS, SIMPLE_LD_REGS,
SIMPLE_LD_REGS, SIMPLE_LD_REGS, SIMPLE_LD_REGS, SIMPLE_LD_REGS,
/* r24, r25 */
ADDW_REGS, ADDW_REGS,
/* X: r26, 27 */
POINTER_X_REGS, POINTER_X_REGS,
/* Y: r28, r29 */
POINTER_Y_REGS, POINTER_Y_REGS,
/* Z: r30, r31 */
POINTER_Z_REGS, POINTER_Z_REGS,
/* SP: SPL, SPH */
STACK_REG, STACK_REG
};
if (r <= 33)
return reg_class_tab[r];
return ALL_REGS;
}