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avr.c (out_tsthi,out_tstsi): Test simplification bug fixed.

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* config/avr/avr.c (out_tsthi,out_tstsi): Test simplification bug
	fixed.
	(machine_dependent_reorg): Wrong optimization based on
	NOTICE_UPDATE_CC removed.

From-SVN: r37715
This commit is contained in:
Denis Chertykov 2000-11-24 20:02:40 +00:00 • committed by Denis Chertykov
parent 692dc9c635
commit 33f7735588
2 changed files with 18 additions and 18 deletions
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7
gcc/ChangeLog
View file

@ -1,3 +1,10 @@
Fri Nov 24 22:37:41 2000 Denis Chertykov <denisc@overta.ru>
* config/avr/avr.c (out_tsthi,out_tstsi): Test simplification bug
fixed.
(machine_dependent_reorg): Wrong optimization based on
NOTICE_UPDATE_CC removed.
Fri Nov 24 19:48:09 2000 J"orn Rennecke <amylaar@redhat.com>
* jump.c (delete_computation): Re-instate deletion of feeding insn.

29
gcc/config/avr/avr.c
View file

@ -2650,7 +2650,7 @@ out_tsthi (insn, l)
rtx insn;
int *l;
{
if (!compare_eq_p (insn))
if (!compare_eq_p (insn) && !compare_diff_p (insn))
{
if (l) *l = 1;
return AS1 (tst,%B0);
@ -2679,7 +2679,7 @@ out_tstsi (insn, l)
rtx insn;
int *l;
{
if (!compare_eq_p (insn))
if (!compare_eq_p (insn) && !compare_diff_p(insn))
{
if (l) *l = 1;
return AS1 (tst,%D0);
@ -4932,20 +4932,17 @@ machine_dependent_reorg (first_insn)
rtx first_insn;
{
rtx insn, pattern;
CC_STATUS_INIT;
for (insn = first_insn; insn; insn = NEXT_INSN (insn))
{
if (! (insn == 0 || GET_CODE (insn) == INSN
|| GET_CODE (insn) == CALL_INSN || GET_CODE (insn) == JUMP_INSN)
if (! (GET_CODE (insn) == INSN
|| GET_CODE (insn) == CALL_INSN
|| GET_CODE (insn) == JUMP_INSN)
|| !single_set (insn))
continue;
pattern = PATTERN (insn);
cc_prev_status = cc_status;
NOTICE_UPDATE_CC (pattern, insn);
if (GET_CODE (pattern) == PARALLEL)
pattern = XVECEXP (pattern, 0, 0);
if (GET_CODE (pattern) == SET
@ -4997,16 +4994,12 @@ machine_dependent_reorg (first_insn)
rtx src = SET_SRC (pat);
rtx t = XEXP (src,0);
if (!(cc_prev_status.value1 != 0 && cc_status.value1 != 0
&& rtx_equal_p (cc_status.value1, cc_prev_status.value1)))
{
PUT_CODE (t, swap_condition (GET_CODE (t)));
SET_SRC (pattern) = gen_rtx (NEG,
GET_MODE (SET_SRC (pattern)),
SET_SRC (pattern));
INSN_CODE (next) = -1;
INSN_CODE (insn) = -1;
}
PUT_CODE (t, swap_condition (GET_CODE (t)));
SET_SRC (pattern) = gen_rtx (NEG,
GET_MODE (SET_SRC (pattern)),
SET_SRC (pattern));
INSN_CODE (next) = -1;
INSN_CODE (insn) = -1;
}
}
}