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<body><span class="vcard"><a class="email" href="mailto:moritz.roth@arm.com" title="Moritz Roth <moritz.roth@arm.com>"> <span class="fn">Moritz Roth</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Bad code generation in post-ra ARMLoadStoreOptimizer pass in thumb1 mode"
href="http://llvm.org/bugs/show_bug.cgi?id=19972">bug 19972</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
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<td style="text-align:right;">CC</td>
<td>
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<td>moritz.roth@arm.com
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Bad code generation in post-ra ARMLoadStoreOptimizer pass in thumb1 mode"
href="http://llvm.org/bugs/show_bug.cgi?id=19972#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Bad code generation in post-ra ARMLoadStoreOptimizer pass in thumb1 mode"
href="http://llvm.org/bugs/show_bug.cgi?id=19972">bug 19972</a>
from <span class="vcard"><a class="email" href="mailto:moritz.roth@arm.com" title="Moritz Roth <moritz.roth@arm.com>"> <span class="fn">Moritz Roth</span></a>
</span></b>
<pre>Hi,
thanks for the report and helpful test case. Looks like this was caused by a
small mistake in the order of operations in the pass which lead to the base
register reset instruction (subs r0, #8) being emitted before the actual
LDM/STM.
I've created a patch at <a href="http://reviews.llvm.org/D4084">http://reviews.llvm.org/D4084</a> which should fix this.
It's been committed as rL210542.
Thanks
Moritz</pre>
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