From: Aurelien Jarno <aurelien@aurel32.net>
To: qemu-devel@nongnu.org
Cc: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Subject: [Qemu-devel] [PATCH 0/3] tcg/arm: fix division
Date: Thu, 4 Mar 2010 22:45:07 +0100 [thread overview]
Message-ID: <1267739110-26400-1-git-send-email-aurelien@aurel32.net> (raw)
The division on TCG ARM is currently broken due to to wrong constraints:
"1" and "2" are interpreted as arguments aliasing instead of
constraints.
This could obviously be fixed, but the division on TCG ARM becomes quite
complex: for no obvious reason div2/divu2 are implemented instead of
div/divu/rem/remu for no obvious reason and the code actually calls the
64-bit helpers for a 32-bit division.
This patch series fixes that by allowing TCG targets to use helpers for
the division in addition to the two current implementations.
next reply other threads:[~2010-03-04 21:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-04 21:45 Aurelien Jarno [this message]
2010-03-04 21:45 ` [Qemu-devel] [PATCH 1/3] tcg: add div/rem 32-bit helpers Aurelien Jarno
2010-03-04 21:45 ` [Qemu-devel] [PATCH 2/3] tcg/arm: use helpers for divu/remu Aurelien Jarno
2010-03-04 21:45 ` [Qemu-devel] [PATCH 3/3] tcg: declare internal helpers as const and pure Aurelien Jarno
2010-03-05 11:15 ` Paul Brook
2010-03-05 20:07 ` Aurelien Jarno
2010-03-07 22:39 ` Paul Brook
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=1267739110-26400-1-git-send-email-aurelien@aurel32.net \
--to=aurelien@aurel32.net \
--cc=andrew.zaborowski@intel.com \
--cc=qemu-devel@nongnu.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 NNTP newsgroup(s).