<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - OpenMP Offload with complex math function on"
href="https://bugs.llvm.org/show_bug.cgi?id=52068">52068</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>OpenMP Offload with complex math function on
</td>
</tr>
<tr>
<th>Product</th>
<td>OpenMP
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Runtime Library
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tapplencourt@anl.gov
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Math function in std::complex. Maybe related to 45003.
This code doesn't compile:
```
#include <complex>
#include <cmath>
#include <iomanip>
#include <stdlib.h>
#include <limits>
#include <iostream>
#include <cstdlib>
using namespace std;
bool almost_equal(complex<double> x, complex<double> y, int ulp) {
return std::abs(x-y) <= std::numeric_limits<double>::epsilon() *
std::abs(x+y) * ulp || std::abs(x-y) < std::numeric_limits<double>::min();
}
void test_cos(){
const char* usr_precision = getenv("OVO_TOL_ULP");
const int precision = usr_precision ? atoi(usr_precision) : 4;
complex<double> in0 { 0.42, 0.0 };
complex<double> out1_host {};
complex<double> out1_device {};
{
out1_host = cos(in0);
}
#pragma omp target map(tofrom: out1_device )
{
out1_device = cos(in0);
}
if ( !almost_equal(out1_host,out1_device, precision) ) {
std::cerr << std::setprecision
(std::numeric_limits<double>::max_digits10 ) << "Host: " << out1_host << " GPU:
" << out1_device << std::endl;
std::exit(112);
}
}
int main()
{
test_cos();
}
```
Error message:
```
tapplencourt@gpu07:~> clang++ --version
clang version 14.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
63c566b1fde33344688fb0e37dc4223a230ad575)
[...]
tapplencourt@gpu07:~> clang++ -fopenmp -fopenmp-targets=nvptx64 -Xopenmp-target
-march=sm_80 test.cpp
clang-14: warning: unknown CUDA version: version.txt: 11.0.207.; assuming the
latest supported version 10.1 [-Wunknown-cuda-version]
nvlink error : Undefined reference to 'ccos' in '/tmp/test-e10f6f.cubin'
clang-14: error: nvlink command failed with exit code 255 (use -v to see
invocation)
clang version 14.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
63c566b1fde33344688fb0e37dc4223a230ad575)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /soft/compilers/llvm/master-latest/bin
clang-14: note: diagnostic msg: Error generating preprocessed source(s).
```
More tests here:
<a href="https://github.com/TApplencourt/OvO/tree/master/test_src/cpp/mathematical_function/cpp11-complex">https://github.com/TApplencourt/OvO/tree/master/test_src/cpp/mathematical_function/cpp11-complex</a>
One can do:
```
./ovo.sh run ./test_src/cpp/mathematical_function/cpp11-complex/
```</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>