From: liuhongt <hongtao.liu@intel.com>
To: gcc-patches@gcc.gnu.org
Cc: josmyers@redhat.com
Subject: [PATCH V2] Document -fexcess-precision=16.
Date: Wed, 20 Mar 2024 09:09:23 +0800 [thread overview]
Message-ID: <20240320010923.3141911-1-hongtao.liu@intel.com> (raw)
In-Reply-To: <b9788724-83eb-235c-d58c-aced83f019c3@redhat.com>
gcc/ChangeLog:
* doc/invoke.texi: Document -fexcess-precision=16.
---
gcc/doc/invoke.texi | 3 +++
1 file changed, 3 insertions(+)
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 85c938d4a14..6bc1ebf9721 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -14930,6 +14930,9 @@ assignments). This option is enabled by default for C or C++ if a strict
conformance option such as @option{-std=c99} or @option{-std=c++17} is used.
@option{-ffast-math} enables @option{-fexcess-precision=fast} by default
regardless of whether a strict conformance option is used.
+If @option{-fexcess-precision=16} is specified, constants and the
+results of expressions with types @code{_Float16} and @code{__bf16}
+are computed without excess precision.
@opindex mfpmath
@option{-fexcess-precision=standard} is not implemented for languages
--
2.31.1
next prev parent reply other threads:[~2024-03-20 1:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-18 10:55 [PATCH] " liuhongt
2024-03-18 16:16 ` Joseph Myers
2024-03-19 0:58 ` Hongtao Liu
2024-03-19 19:56 ` Joseph Myers
2024-03-20 1:09 ` liuhongt [this message]
2024-03-20 21:10 ` [PATCH V2] " Joseph Myers
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=20240320010923.3141911-1-hongtao.liu@intel.com \
--to=hongtao.liu@intel.com \
--cc=gcc-patches@gcc.gnu.org \
--cc=josmyers@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).