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* gcc-wwwdocs branch master updated. 7628017f4f79e9ba4f449cc6e24bc1f36c0adf84
@ 2022-04-05 8:20 Tom de Vries
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From: Tom de Vries @ 2022-04-05 8:20 UTC (permalink / raw)
To: gcc-cvs-wwwdocs
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commit 7628017f4f79e9ba4f449cc6e24bc1f36c0adf84
Author: Tom de Vries <tdevries@suse.de>
Date: Wed Mar 30 14:14:06 2022 +0200
gcc-12: Nvptx updates.
Co-Authored-By: Tobias Burnus <tobias@codesourcery.com>
diff --git a/htdocs/gcc-12/changes.html b/htdocs/gcc-12/changes.html
index 4e1f6b0f..4f2ee77f 100644
--- a/htdocs/gcc-12/changes.html
+++ b/htdocs/gcc-12/changes.html
@@ -561,12 +561,33 @@ a work-in-progress.</p>
<h3 id="nvptx">NVPTX</h3>
<ul>
+ <li>The <code>-march</code> flag has been added. The <code>-misa</code>
+ flag is now considered an alias of the <code>-march</code> flag.</li>
+ <li>Support for PTX ISA target architectures <code>sm_53</code>,
+ <code>sm_70</code>, <code>sm_75</code> and <code>sm_80</code> has been
+ added. These can be specified using the <code>-march</code> flag.</li>
+ <li>The default PTX ISA target architecture has been set back
+ to <code>sm_30</code>, to fix support for <code>sm_30</code> boards.</li>
+ <li>The <code>-march-map</code> flag has been added. The
+ <code>-march-map</code> value will be mapped to an valid
+ <code>-march</code> flag value. For instance,
+ <code>-march-map=sm_50</code> maps to <code>-march=sm_35</code>.
+ This can be used to specify that generated code is to be executed on a
+ board with at least some specific compute capability, without having to
+ know the valid values for the <code>-march</code> flag.</li>
<li>The <code>-mptx</code> flag has been added to specify the PTX ISA version
for the generated code; permitted values are <code>3.1</code>
- (default, matches previous GCC versions) and <code>6.3</code>.
+ (matches previous GCC versions), <code>6.0</code>, <code>6.3</code>,
+ and <code>7.0</code>. If not specified, the used version is the minimal
+ version required for <code>-march</code> but at least <code>6.0</code>.
</li>
+ <li>An <code>mptx-3.1</code> multilib was added. This allows using older
+ drivers which do not support PTX ISA version 6.0.</li>
<li>The new <code>__PTX_SM__</code> predefined macro allows code to check the
- compute model being targeted by the compiler.</li>
+ PTX ISA target architecture being targeted by the compiler.</li>
+ <li>The new <code>__PTX_ISA_VERSION_MAJOR__</code>
+ and <code>__PTX_ISA_VERSION_MINOR__</code> predefined macros allows code
+ to check the PTX ISA version being targeted by the compiler.</li>
</ul>
<!-- <h3 id="hppa">PA-RISC</h3> -->
-----------------------------------------------------------------------
Summary of changes:
htdocs/gcc-12/changes.html | 25 +++++++++++++++++++++++--
1 file changed, 23 insertions(+), 2 deletions(-)
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