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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - The introduction of $ref globals is not always valid"
href="https://bugs.llvm.org/show_bug.cgi?id=49649">49649</a>
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<th>Summary</th>
<td>The introduction of $ref globals is not always valid
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<th>Product</th>
<td>OpenMP
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Clang Compiler Support
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>jdoerfert@anl.gov
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<th>CC</th>
<td>a.bataev@hotmail.com, deepak.eachempati@hpe.com, jonathanchesterfield@gmail.com, kkwli0@gmail.com, llvm-bugs@lists.llvm.org, ravi.narayanaswamy@intel.com
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<p>
<div>
<pre>If we have code like (<a href="https://godbolt.org/z/3neTaj">https://godbolt.org/z/3neTaj</a>)
```
#include <omp.h>
#pragma omp declare target
static int X;
#pragma omp allocate(X) allocator(omp_pteam_mem_alloc)
#pragma omp end declare target
```
we cannot introduce the $ref variable because the ptx:
```
.shared .align 4 .u32 X;
.global .align 8 .u64 _X$ref = X;
```
is invalid, a global is initialized with a shared value.
That said, I'm unsure $ref should ever be used. I didn't
find the a bug report or detailed explanation in the
original commit 3823514b56d92</pre>
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