From: David Malcolm <dmalcolm@redhat.com>
To: gcc-patches@gcc.gnu.org
Cc: David Malcolm <dmalcolm@redhat.com>
Subject: [PATCH 09/10] Simplification within reorg.c
Date: Fri, 05 Sep 2014 01:47:00 -0000 [thread overview]
Message-ID: <1409881927-61672-10-git-send-email-dmalcolm@redhat.com> (raw)
In-Reply-To: <1409881927-61672-1-git-send-email-dmalcolm@redhat.com>
gcc/
* reorg.c (relax_delay_slots): Move declaration of "trial_seq"
above the conditional, and convert the check on GET_CODE to a
dyn_cast, so that "trial_seq" is available as an rtx_sequence * in
the conditional. Simplify the conditional by using methods of
"trial_seq".
---
gcc/reorg.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/gcc/reorg.c b/gcc/reorg.c
index 89d500d..7bacc6d 100644
--- a/gcc/reorg.c
+++ b/gcc/reorg.c
@@ -3385,13 +3385,14 @@ relax_delay_slots (rtx_insn *first)
/* Similarly, if it is an unconditional jump with one insn in its
delay list and that insn is redundant, thread the jump. */
- if (trial && GET_CODE (PATTERN (trial)) == SEQUENCE
- && XVECLEN (PATTERN (trial), 0) == 2
- && JUMP_P (XVECEXP (PATTERN (trial), 0, 0))
- && simplejump_or_return_p (XVECEXP (PATTERN (trial), 0, 0))
- && redundant_insn (XVECEXP (PATTERN (trial), 0, 1), insn, 0))
+ rtx_sequence *trial_seq =
+ trial ? dyn_cast <rtx_sequence *> (PATTERN (trial)) : NULL;
+ if (trial_seq
+ && trial_seq->len () == 2
+ && JUMP_P (trial_seq->insn (0))
+ && simplejump_or_return_p (trial_seq->insn (0))
+ && redundant_insn (trial_seq->insn (1), insn, 0))
{
- rtx_sequence *trial_seq = as_a <rtx_sequence *> (PATTERN (trial));
target_label = JUMP_LABEL (trial_seq->insn (0));
if (ANY_RETURN_P (target_label))
target_label = find_end_label (target_label);
--
1.8.5.3
next prev parent reply other threads:[~2014-09-05 1:47 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-05 1:47 [PATCH 00/10] More use of rtx subclasses David Malcolm
2014-09-05 1:47 ` [PATCH 10/10] Use rtx_insn for various jump-handling functions and predicates David Malcolm
2014-09-05 2:34 ` Jeff Law
2014-09-05 13:03 ` Richard Sandiford
2014-09-05 15:16 ` David Malcolm
2014-09-05 1:47 ` David Malcolm [this message]
2014-09-05 2:32 ` [PATCH 09/10] Simplification within reorg.c Jeff Law
2014-09-05 1:47 ` [PATCH 03/10] for_each_eh_label callbacks take an rtx_code_label David Malcolm
2014-09-05 2:27 ` Jeff Law
2014-09-05 1:47 ` [PATCH 07/10] Use rtx_insn for more scheduler things, plus CONST_CAST_RTX_INSN David Malcolm
2014-09-05 2:31 ` Jeff Law
2014-09-05 1:47 ` [PATCH 06/10] Use rtx_insn more within peep2 David Malcolm
2014-09-05 2:29 ` Jeff Law
2014-09-05 1:47 ` [PATCH 01/10] Use rtx_jump_table_data in jump.c:delete_related_insns David Malcolm
2014-09-05 2:23 ` Jeff Law
2014-09-05 1:47 ` [PATCH 05/10] Convert set_block_for_insn from a macro to an inline function David Malcolm
2014-09-05 2:29 ` Jeff Law
2014-09-05 1:47 ` [PATCH 08/10] Use rtx_insn_list within haifa-sched.c David Malcolm
2014-09-05 2:31 ` Jeff Law
2014-09-05 1:47 ` [PATCH 02/10] Drop uncast_insn from param 1 of final_scan_insn David Malcolm
2014-09-05 2:25 ` Jeff Law
2014-09-05 1:47 ` [PATCH 04/10] Eliminate the checked cast from get_call_reg_set_usage David Malcolm
2014-09-05 2:28 ` Jeff Law
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