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<body><span class="vcard"><a class="email" href="mailto:asl@math.spbu.ru" title="Anton Korobeynikov <asl@math.spbu.ru>"> <span class="fn">Anton Korobeynikov</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - x86_64: Result code use stack before %rsp (out of stack frame)"
href="http://llvm.org/bugs/show_bug.cgi?id=15573">bug 15573</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>NEW
</td>
<td>RESOLVED
</td>
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<td style="text-align:right;">CC</td>
<td>
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<td>asl@math.spbu.ru
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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 - x86_64: Result code use stack before %rsp (out of stack frame)"
href="http://llvm.org/bugs/show_bug.cgi?id=15573#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - x86_64: Result code use stack before %rsp (out of stack frame)"
href="http://llvm.org/bugs/show_bug.cgi?id=15573">bug 15573</a>
from <span class="vcard"><a class="email" href="mailto:asl@math.spbu.ru" title="Anton Korobeynikov <asl@math.spbu.ru>"> <span class="fn">Anton Korobeynikov</span></a>
</span></b>
<pre>This is expected behavior. From x86-64 ABI:
...
The 128-byte area beyond the location pointed to by %rsp is considered to be
reserved and shall not be modified by signal or interrupt handlers. Therefore,
functions may use this area for temporary data that is not needed across
function calls. In particular, leaf functions may use this area for their
entire stack frame, rather than adjusting the stack pointer in the prologue and
epilogue. This area is known as the red zone.
...
Signal or interrupt handles should not use / modify red zone.
Please reopen if you feel the bug is not red zone - related.</pre>
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