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Add some release notes about ARM v7 support and known problems.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78842 91177308-0d34-0410-b5e6-96231b3b80d8
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Bob Wilson 2009-08-12 21:19:49 +00:00
parent f7c553e993
commit 755cbe0db1
1 changed files with 24 additions and 0 deletions
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docs/ReleaseNotes-2.6.html
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@ -395,6 +395,27 @@ it run faster:</p>
</div>
<!--=========================================================================-->
<div class="doc_subsection">
<a name="ARM">ARM Target Improvements</a>
</div>
<div class="doc_text">
<p>New features of the ARM target include:
</p>
<ul>
<li>Preliminary support for processors, such as the Cortex-A8 and Cortex-A9,
that implement version 7 of the ARM architecture. The ARM backend now
supports both the Thumb2 and Advanced SIMD (Neon) instruction sets.
These features are still somewhat experimental and subject to change.
The Neon intrinsics, in particular, may change in future releases of LLVM.
</li>
</ul>
</div>
<!--=========================================================================-->
<div class="doc_subsection">
@ -638,6 +659,9 @@ compilation, and lacks support for debug information.</li>
<div class="doc_text">
<ul>
<li>Support for the Advanced SIMD (Neon) instruction set is still incomplete
and not well tested. Some features may not work at all, and the code quality
may be poor in some cases.</li>
<li>Thumb mode works only on ARMv6 or higher processors. On sub-ARMv6
processors, thumb programs can crash or produce wrong
results (<a href="http://llvm.org/PR1388">PR1388</a>).</li>