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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Launching SteamVR results in nir_deref_instr_remove_if_unused assert"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108065">108065</a>
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<th>Summary</th>
<td>Launching SteamVR results in nir_deref_instr_remove_if_unused assert
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<th>Product</th>
<td>Mesa
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/Vulkan/radeon
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>andresx7@gmail.com
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
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<pre>When launching SteamVR, the vrcompositor process hits the following assert:
vrcompositor: ../src/compiler/nir/nir_deref.c:95:
nir_deref_instr_remove_if_unused: Assertion `d->dest.is_ssa' failed.
This regression started with the change:
864c78 "nir/opt_if: Re-materialize derefs in use blocks before peeling loops"
<a href="https://gitlab.freedesktop.org/mesa/mesa/commit/864c780566b8782c4fc69b4337db768223717bd8">https://gitlab.freedesktop.org/mesa/mesa/commit/864c780566b8782c4fc69b4337db768223717bd8</a></pre>
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