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<body><span class="vcard"><a class="email" href="mailto:zegzmanzoro@gmail.com" title="Martynas Skirmantas <zegzmanzoro@gmail.com>"> <span class="fn">Martynas Skirmantas</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CLANG-CL] 64x inline assembler function call/jump miscompiled"
href="https://bugs.llvm.org/show_bug.cgi?id=44272">bug 44272</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
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<td style="text-align:right;">Resolution</td>
<td>WONTFIX
</td>
<td>---
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<td style="text-align:right;">Status</td>
<td>RESOLVED
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<td>REOPENED
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CLANG-CL] 64x inline assembler function call/jump miscompiled"
href="https://bugs.llvm.org/show_bug.cgi?id=44272#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CLANG-CL] 64x inline assembler function call/jump miscompiled"
href="https://bugs.llvm.org/show_bug.cgi?id=44272">bug 44272</a>
from <span class="vcard"><a class="email" href="mailto:zegzmanzoro@gmail.com" title="Martynas Skirmantas <zegzmanzoro@gmail.com>"> <span class="fn">Martynas Skirmantas</span></a>
</span></b>
<pre>Hold up, I have reopened the bug report, I did way more digging and I found
many people stating that Clang support 64bit inline assembly and some people
are using it by looking at stackoverflow questions, here is old post:
<a href="http://blog.llvm.org/2018/03/clang-is-now-used-to-build-chrome-for.html">http://blog.llvm.org/2018/03/clang-is-now-used-to-build-chrome-for.html</a>
It states that chrome is using Clang-CL and they use 64 bit and 32 bit inline
assembly to build a library. What is going on here? it just doesn't add up,
there are many people that claim this if you google enough your self, surely a
llvm blogging site wouldn't lie about such a thing.
This is what it says: "Clang supports 64-bit inline assembly. For example, in
Chrome we built libyuv (a video format conversion library) with Clang long
before we built all of Chrome with it. libyuv had highly-tuned 64-bit inline
assembly with performance not reachable with intrinsics, and we could just use
that code on Windows."
There are many uses for a inline assembler as statement by the blog, this bug
should be fixed, which has been as confirmed by "Eric Astor" using godbolt
compiler explorer. I would like to hear a official statement that this bug
can't be fixed or 64bit inline assembly is NOT supported by Clang.</pre>
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