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<body><span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Wrong transformation due to semantic gap between C11 and LLVM semantics"
href="http://llvm.org/bugs/show_bug.cgi?id=22514">bug 22514</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>REOPENED
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<td>RESOLVED
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<td style="text-align:right;">CC</td>
<td>
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<td>richard-llvm@metafoo.co.uk
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<td style="text-align:right;">Resolution</td>
<td>---
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<td>INVALID
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Wrong transformation due to semantic gap between C11 and LLVM semantics"
href="http://llvm.org/bugs/show_bug.cgi?id=22514#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Wrong transformation due to semantic gap between C11 and LLVM semantics"
href="http://llvm.org/bugs/show_bug.cgi?id=22514">bug 22514</a>
from <span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=22514#c2">comment #2</a>)
<span class="quote">> The R_sc(X,1) in readA() reads-from W_sc(X,1) in writeA() which results in
> synchronization</span >
That is not correct; no synchronization happens here.
<span class="quote">> and W_na(a,42) happens-before R_na(a,42)</span >
No, there is no happens-before relation here.
If you reopen this again, please provide an explanation of why you think there
is a happens-before relation here, referencing the rules in [intro.multithread]
in the C++ standard to justify the steps in your explanation.</pre>
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