From: "H.J. Lu" <hjl.tools@gmail.com>
To: gcc-patches@gcc.gnu.org
Subject: PATCH: Update gcc-4.4/changes.html for x86-64 ABI changes
Date: Mon, 20 Apr 2009 02:25:00 -0000 [thread overview]
Message-ID: <20090420022543.GA21001@lucon.org> (raw)
Hi,
This patch documents x86-64 ABI changes in gcc 4.4.
H.J.
----
Index: gcc-4.4/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.4/changes.html,v
retrieving revision 1.69
diff -u -p -r1.69 changes.html
--- gcc-4.4/changes.html 19 Apr 2009 21:57:47 -0000 1.69
+++ gcc-4.4/changes.html 20 Apr 2009 02:24:22 -0000
@@ -539,6 +539,12 @@
<li>GCC can now utilize the SVML library for vectorizing calls to
a set of C99 functions if <code>-mveclibabi=svml</code> is specified
and you link to an SVML ABI compatible library.</li>
+ <li>The following changes have been made to conform to x86-64 ABI:
+ <ul>
+ <li>Passing/returning structures with flexible array member.</li>
+ <li>Passing/returning structures with complex float member.</li>
+ <li>Passing/returning unions with long double member.</li>
+ </ul></li>
<li>A new <code>target</code> attribute was added to allow programmers to change the target options like <code>-msse2</code> or <code>-march=k8</code> for an individual function. You can also change the target options via the <code>GCC target</code> pragma for functions defined after the pragma.</li>
<li>GCC can now be configured with
options <code>--with-arch-32</code>, <code>--with-arch-64</code>,
next reply other threads:[~2009-04-20 2:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-20 2:25 H.J. Lu [this message]
2009-04-21 7:39 ` Gerald Pfeifer
2009-04-23 14:30 ` H.J. Lu
2009-04-26 0:22 ` Gerald Pfeifer
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