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<body><span class="vcard"><a class="email" href="mailto:john.brawn@arm.com" title="John Brawn <john.brawn@arm.com>"> <span class="fn">John Brawn</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - ARM: CodeGen fails to legalize AtomicCmpSwap"
href="https://bugs.llvm.org/show_bug.cgi?id=3877">bug 3877</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">CC</td>
<td>
</td>
<td>john.brawn@arm.com
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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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 - ARM: CodeGen fails to legalize AtomicCmpSwap"
href="https://bugs.llvm.org/show_bug.cgi?id=3877#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - ARM: CodeGen fails to legalize AtomicCmpSwap"
href="https://bugs.llvm.org/show_bug.cgi?id=3877">bug 3877</a>
from <span class="vcard"><a class="email" href="mailto:john.brawn@arm.com" title="John Brawn <john.brawn@arm.com>"> <span class="fn">John Brawn</span></a>
</span></b>
<pre>This was fixed long ago. With LLVM 3.5.0 and later I can compile the following:
define i32 @fn(i32 *%ptr, i32 %cmp, i32 %new) {
%val = cmpxchg i32* %ptr, i32 %cmp, i32 %new acq_rel monotonic
%ret = extractvalue { i32, i1 } %val, 0
ret i32 %ret
}
with no problems.</pre>
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