<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Issue</th>
<td>
<a href=https://github.com/llvm/llvm-project/issues/93609>93609</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>
The openmp-offload-amdgpu-runtime bot uses mismatched x86_64-{pc,unknown}-linux-gnu triples
</td>
</tr>
<tr>
<th>Labels</th>
<td>
new issue,
openmp:libomptarget
</td>
</tr>
<tr>
<th>Assignees</th>
<td>
</td>
</tr>
<tr>
<th>Reporter</th>
<td>
MaskRay
</td>
</tr>
</table>
<pre>
The built toolchain appears to set `LLVM_DEFAULT_TARGET_TRIPLE` to `x86_64-unknown-linux-gnu`.
```
-- LLVM host triple: x86_64-unknown-linux-gnu
-- Native target architecture is X86
...
-- LLVM default target triple: x86_64-unknown-linux-gnu
```
However, the `check check-offload` test step uses a different triple `-fopenmp-targets=x86_64-pc-linux-gnu`.
The test output contains this notice:
```
FAIL: libomptarget :: x86_64-pc-linux-gnu :: api/is_initial_device.c (233 of 750)
```
```
******************** TEST 'libomptarget :: x86_64-pc-linux-gnu :: api/assert.c' FAILED ********************
Exit Code: 1
Command Output (stdout):
--
# RUN: at line 1
/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./bin/clang -fopenmp -I /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test -I /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -nogpulib -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib -fopenmp-targets=x86_64-pc-linux-gnu /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test/api/assert.c -o /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload/test/x86_64-pc-linux-gnu/api/Output/assert.c.tmp /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib/libomptarget.devicertl.a && /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload/test/x86_64-pc-linux-gnu/api/Output/assert.c.tmp | /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./bin/FileCheck /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test/api/assert.c
# executed command: /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./bin/clang -fopenmp -I /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test -I /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -nogpulib -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib -fopenmp-targets=x86_64-pc-linux-gnu /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test/api/assert.c -o /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload/test/x86_64-pc-linux-gnu/api/Output/assert.c.tmp /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib/libomptarget.devicertl.a
# .---command stderr------------
# | ld.lld: error: cannot open crtbeginS.o: No such file or directory
# | ld.lld: error: cannot open crtendS.o: No such file or directory
# | clang: error: linker command failed with exit code 1 (use -v to see invocation)
# | /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/bin/clang-linker-wrapper: error: 'clang' failed
# | clang: error: linker command failed with exit code 1 (use -v to see invocation)
# `-----------------------------
# error: command failed with exit status: 1
```
---
`clang --target=x86_64-pc-linux-gnu` probing `x86_64-unknown-linux-gnu` library/include directories or the converse
is a loose driver behavior that we have been slowly migrating away for the past few years.
(
We have done a few things including:
* Discouraging new additions to `*Libs` arrays in `clang/lib/Driver/ToolChains/Gnu.cpp:CollectLibDirsAndTriples`.
* `--target=x86_64-unknown-linux-gnu` no longer probes `x86_64-linux-android` library/include directories
* `--target=x86_64-unknown-linux-gnu` no longer probes some niche triples
)
</pre>
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