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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Fail to compile clang_hip_math with libc++"
href="https://bugs.llvm.org/show_bug.cgi?id=52477">52477</a>
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<th>Summary</th>
<td>Fail to compile clang_hip_math with libc++
</td>
</tr>
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<th>Product</th>
<td>OpenMP
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Clang Compiler Support
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>jonathanchesterfield@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>Reported by Wael Elwasif,
#include <omp.h>
#include <cmath>
#include <cstdio>
int main(int argc, char **argv){
double a = -1.0;
#pragma omp target map(tofrom: a)
{
a = std::abs(a);
}
printf("a = %lf\n", a);
}
...
In file included from
llvm/14.0.0-20211110/lib/clang/14.0.0/include/__clang_hip_math.h:18:
In file included from
llvm/14.0.0-20211110/bin/../include/c++/v1/algorithm:653:
...
llvm/14.0.0-20211110/bin/../include/c++/v1/__threading_support:735:12:
error: calling a private constructor of class 'std::__thread_id'
return __libcpp_thread_get_current_id();
OpenMP currently uses __clang_hip_math.h in the libm implementation. That
header includes <algorithm>, although amdgpu doesn't have a libc++, and that
includes shared_ptr and then threading_support and then falls over.
Fix is to drop algorithm from clang_hip_math.h, which really shouldn't be
including any of the c++ standard library</pre>
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