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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - No support for modes KF/KC cause failures to compile math.h with -mfloat128 on PPC"
href="https://bugs.llvm.org/show_bug.cgi?id=46068">46068</a>
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<th>Summary</th>
<td>No support for modes KF/KC cause failures to compile math.h with -mfloat128 on PPC
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>10.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Frontend
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>nemanja.i.ibm@gmail.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>The following test case does not compile with clang (and also causes failures
to configure projects when -mfloat128 is in the FLAGS):
#include <math.h>
__CFLOAT128 testkf(__CFLOAT128 a, __CFLOAT128 b) {
return a + b;
}
$ clang -I /opt/at12.0/include -S -mfloat128 -mcpu=power9 noKC.c -O
In file included from noKC.c:1:
In file included from /opt/at12.0/include/math.h:43:
/opt/at12.0/include/bits/floatn.h:82:52: error: unknown machine mode '__KC__'
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__KC__)));
^
1 error generated.</pre>
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