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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 - calls to operator delete(..., const std::nothrow_t &) are optimized out"
href="https://bugs.llvm.org/show_bug.cgi?id=42564">bug 42564</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - calls to operator delete(..., const std::nothrow_t &) are optimized out"
href="https://bugs.llvm.org/show_bug.cgi?id=42564#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - calls to operator delete(..., const std::nothrow_t &) are optimized out"
href="https://bugs.llvm.org/show_bug.cgi?id=42564">bug 42564</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>This is a permitted optimization. Under C++ [expr.new]p12
(<a href="http://eel.is/c++draft/expr.new#12">http://eel.is/c++draft/expr.new#12</a>):
"An implementation is allowed to omit a call to a replaceable global allocation
function ([new.delete.single], [new.delete.array]). When it does so, the
storage is instead provided by the implementation or provided by extending the
allocation of another new-expression."
In this case, the implementation provides storage for the 'new (std::nothrow)
A' expression itself rather than calling the allocation function, so it would
not be appropriate to call a deallocation function.</pre>
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