From: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
To: gcc-patches@gcc.gnu.org
Cc: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>,
Bernd Schmidt <bernds_cb1@t-online.de>,
Vladimir Makarov <vmakarov@redhat.com>,
Jeff Law <jeffreyalaw@gmail.com>,
Alexander Monakov <amonakov@ispras.ru>,
Richard Guenther <richard.guenther@gmail.com>
Subject: [PATCH v3 5/8] Add a bit more logging scheduler's dependency analysis
Date: Wed, 22 Nov 2023 11:14:12 +0000 [thread overview]
Message-ID: <20231122111415.815147-6-maxim.kuvyrkov@linaro.org> (raw)
In-Reply-To: <20231120120649.672893-1-maxim.kuvyrkov@linaro.org>
gcc/ChangeLog:
* sched-deps.cc (sd_add_dep, find_inc): Add logging about
dependency creation.
---
gcc/sched-deps.cc | 30 ++++++++++++++++++++++++++----
1 file changed, 26 insertions(+), 4 deletions(-)
diff --git a/gcc/sched-deps.cc b/gcc/sched-deps.cc
index 4d357079a7a..2a87158ba4b 100644
--- a/gcc/sched-deps.cc
+++ b/gcc/sched-deps.cc
@@ -1342,6 +1342,13 @@ sd_add_dep (dep_t dep, bool resolved_p)
in the bitmap caches of dependency information. */
if (true_dependency_cache != NULL)
set_dependency_caches (dep);
+
+ if (sched_verbose >= 9)
+ {
+ fprintf (sched_dump, "created dependency ");
+ dump_dep (sched_dump, dep, 1);
+ fprintf (sched_dump, "\n");
+ }
}
/* Add or update backward dependence between INSN and ELEM
@@ -4879,18 +4886,33 @@ find_inc (struct mem_inc_info *mii, bool backwards)
we create. */
gcc_assert (mii->inc_insn == inc_cand);
+ int n_deps_created = 0;
if (backwards)
{
FOR_EACH_DEP (mii->inc_insn, SD_LIST_BACK, sd_it, dep)
- add_dependence_1 (mii->mem_insn, DEP_PRO (dep),
- REG_DEP_TRUE);
+ {
+ add_dependence_1 (mii->mem_insn, DEP_PRO (dep),
+ REG_DEP_TRUE);
+ ++n_deps_created;
+ }
}
else
{
FOR_EACH_DEP (mii->inc_insn, SD_LIST_FORW, sd_it, dep)
- add_dependence_1 (DEP_CON (dep), mii->mem_insn,
- REG_DEP_ANTI);
+ {
+ add_dependence_1 (DEP_CON (dep), mii->mem_insn,
+ REG_DEP_ANTI);
+ ++n_deps_created;
+ }
}
+ if (sched_verbose >= 6)
+ fprintf (sched_dump,
+ "created %d deps for mem_insn %d due to "
+ "inc_insn %d %s deps\n",
+ n_deps_created, INSN_UID (mii->mem_insn),
+ INSN_UID (mii->inc_insn),
+ backwards ? "backward" : "forward");
+
return true;
}
next:
--
2.34.1
next prev parent reply other threads:[~2023-11-22 11:15 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-20 12:06 [PATCH 0/1] Avoid exponential behavior in scheduler and better logging Maxim Kuvyrkov
2023-11-20 12:06 ` [PATCH 1/1] sched-deps.cc (find_modifiable_mems): Avoid exponential behavior Maxim Kuvyrkov
2023-11-20 13:09 ` Richard Biener
2023-11-20 13:42 ` Maxim Kuvyrkov
2023-11-20 13:45 ` Richard Biener
2023-11-20 14:48 ` [PATCH v2] " Maxim Kuvyrkov
2023-11-20 18:59 ` [PATCH 1/1] " Maxim Kuvyrkov
2023-11-20 13:52 ` Alexander Monakov
2023-11-20 14:39 ` Maxim Kuvyrkov
2023-11-20 16:30 ` Alexander Monakov
2023-11-21 10:32 ` Maxim Kuvyrkov
2023-11-21 11:05 ` Alexander Monakov
2023-11-22 11:14 ` [PATCH v3 0/8] Avoid exponential behavior in scheduler and better logging Maxim Kuvyrkov
2023-11-22 11:14 ` [PATCH v3 1/8] sched-deps.cc (find_modifiable_mems): Avoid exponential behavior Maxim Kuvyrkov
2024-01-15 12:56 ` Maxim Kuvyrkov
2024-01-15 18:26 ` Vladimir Makarov
2024-01-16 14:52 ` Jeff Law
2024-01-17 6:51 ` Richard Biener
2024-01-17 7:39 ` Maxim Kuvyrkov
2024-01-17 15:02 ` Richard Biener
2024-01-17 15:05 ` Maxim Kuvyrkov
2024-01-17 15:44 ` Maxim Kuvyrkov
2024-01-17 18:54 ` H.J. Lu
2023-11-22 11:14 ` [PATCH v3 2/8] Unify implementations of print_hard_reg_set() Maxim Kuvyrkov
2023-11-22 15:04 ` Vladimir Makarov
2023-11-22 11:14 ` [PATCH v3 3/8] Simplify handling of INSN_ and EXPR_LISTs in sched-rgn.cc Maxim Kuvyrkov
2024-01-15 12:59 ` Maxim Kuvyrkov
2023-11-22 11:14 ` [PATCH v3 4/8] Improve and fix sched-deps.cc: dump_dep() and dump_lists() Maxim Kuvyrkov
2024-01-15 13:01 ` Maxim Kuvyrkov
2023-11-22 11:14 ` Maxim Kuvyrkov [this message]
2024-01-15 13:04 ` [PATCH v3 5/8] Add a bit more logging scheduler's dependency analysis Maxim Kuvyrkov
2023-11-22 11:14 ` [PATCH v3 6/8] sched_deps.cc: Simplify initialization of dependency contexts Maxim Kuvyrkov
2024-01-15 13:05 ` Maxim Kuvyrkov
2023-11-22 11:14 ` [PATCH v3 7/8] Improve logging of register data in scheduler dependency analysis Maxim Kuvyrkov
2024-01-15 13:06 ` Maxim Kuvyrkov
2023-11-22 11:14 ` [PATCH v3 8/8] Improve logging of scheduler dependency analysis context Maxim Kuvyrkov
2024-01-15 13:08 ` Maxim Kuvyrkov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231122111415.815147-6-maxim.kuvyrkov@linaro.org \
--to=maxim.kuvyrkov@linaro.org \
--cc=amonakov@ispras.ru \
--cc=bernds_cb1@t-online.de \
--cc=gcc-patches@gcc.gnu.org \
--cc=jeffreyalaw@gmail.com \
--cc=richard.guenther@gmail.com \
--cc=vmakarov@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).