public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "olegendo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/49263] SH Target: underutilized "TST #imm, R0" instruction
Date: Tue, 30 May 2023 19:57:07 +0000 [thread overview]
Message-ID: <bug-49263-4-sT4D0dx0T8@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-49263-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49263
--- Comment #49 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Alexander Klepikov from comment #48)
> I made tests (including *.c files from GCC testsuite) and everything looks
> fine for now. But I'm still afraid that pattern for 'ashrsi3_libcall_expand'
> is too wide. It is possible to narrow it down as much as possible by adding
> distinct attribute and set when emitting 'ashrsi3_libcall_collapsed' and
> then check it and fail if not set:
>
For this kind of change, the whole GCC test suite needs to be ran for at least
big/little -m2,-m4 variants.
+(define_insn_and_split "ashrsi3_libcall_expand"
+ [(parallel [(set (match_operand:SI 0 "arith_reg_dest")
+ (ashiftrt:SI (match_operand:SI 1 "arith_reg_operand")
+ (match_operand:SI 2 "const_int_operand"))
+ )(clobber (reg:SI T_REG))
+ (clobber (reg:SI PR_REG))
+ ])]
The 'parallel' construct looks strange.
next prev parent reply other threads:[~2023-05-30 19:57 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-01 20:17 [Bug target/49263] New: " oleg.endo@t-online.de
2011-06-01 20:42 ` [Bug target/49263] " oleg.endo@t-online.de
2011-06-12 23:12 ` kkojima at gcc dot gnu.org
2011-06-19 16:42 ` oleg.endo@t-online.de
2011-06-22 22:34 ` kkojima at gcc dot gnu.org
2011-06-26 22:31 ` oleg.endo@t-online.de
2011-06-27 5:15 ` kkojima at gcc dot gnu.org
2011-10-09 23:35 ` oleg.endo@t-online.de
2011-10-10 1:32 ` kkojima at gcc dot gnu.org
2011-10-10 23:48 ` oleg.endo@t-online.de
2011-10-11 1:47 ` kkojima at gcc dot gnu.org
2011-10-13 22:55 ` oleg.endo@t-online.de
2011-10-14 23:06 ` kkojima at gcc dot gnu.org
2011-10-15 2:33 ` kkojima at gcc dot gnu.org
2011-11-20 14:20 ` oleg.endo@t-online.de
2011-12-29 1:09 ` oleg.endo@t-online.de
2012-02-26 16:28 ` olegendo at gcc dot gnu.org
2012-02-26 23:29 ` olegendo at gcc dot gnu.org
2012-08-27 19:52 ` olegendo at gcc dot gnu.org
2012-10-28 22:02 ` olegendo at gcc dot gnu.org
2012-10-31 13:47 ` olegendo at gcc dot gnu.org
2013-12-08 13:47 ` olegendo at gcc dot gnu.org
2013-12-17 12:37 ` olegendo at gcc dot gnu.org
2014-12-30 18:45 ` olegendo at gcc dot gnu.org
2015-01-24 13:05 ` olegendo at gcc dot gnu.org
2015-01-26 23:57 ` olegendo at gcc dot gnu.org
2023-05-12 11:46 ` klepikov.alex+bugs at gmail dot com
2023-05-23 12:34 ` klepikov.alex+bugs at gmail dot com
2023-05-23 12:35 ` klepikov.alex+bugs at gmail dot com
2023-05-23 19:05 ` olegendo at gcc dot gnu.org
2023-05-24 11:40 ` klepikov.alex+bugs at gmail dot com
2023-05-24 11:57 ` olegendo at gcc dot gnu.org
2023-05-24 13:34 ` klepikov.alex+bugs at gmail dot com
2023-05-24 15:00 ` olegendo at gcc dot gnu.org
2023-05-25 17:53 ` klepikov.alex+bugs at gmail dot com
2023-05-25 21:32 ` olegendo at gcc dot gnu.org
2023-05-26 12:03 ` klepikov.alex+bugs at gmail dot com
2023-05-26 17:44 ` olegendo at gcc dot gnu.org
2023-05-28 10:24 ` klepikov.alex+bugs at gmail dot com
2023-05-28 10:48 ` olegendo at gcc dot gnu.org
2023-05-29 14:54 ` klepikov.alex+bugs at gmail dot com
2023-05-30 1:48 ` egallager at gcc dot gnu.org
2023-05-30 1:56 ` olegendo at gcc dot gnu.org
2023-05-30 12:42 ` klepikov.alex+bugs at gmail dot com
2023-05-30 19:57 ` olegendo at gcc dot gnu.org [this message]
2023-05-30 20:00 ` olegendo at gcc dot gnu.org
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=bug-49263-4-sT4D0dx0T8@http.gcc.gnu.org/bugzilla/ \
--to=gcc-bugzilla@gcc.gnu.org \
--cc=gcc-bugs@gcc.gnu.org \
/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).