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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [AMDGPU][Regression,bisected] Recent Load/Store optimizer improvements break SI"
href="https://bugs.llvm.org/show_bug.cgi?id=40129">40129</a>
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<th>Summary</th>
<td>[AMDGPU][Regression,bisected] Recent Load/Store optimizer improvements break SI
</td>
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<th>Product</th>
<td>new-bugs
</td>
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<th>Version</th>
<td>trunk
</td>
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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
</td>
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<th>Severity</th>
<td>release blocker
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>new bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>samuel.pitoiset@gmail.com
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>Hi,
The following commit introduces a bunch of Vulkan CTS failures (~1600) on SI.
Tested with RADV.
If you want to reproduce the problem, you can run
dEQP-VK.clipping.user_defined.clip_cull_distance.vert_tess_geom.1_7 or
dEQP-VK.image.image_size.1d.readonly_1 for example.
Note that a bunch of vec3 CTS tests fail too, maybe it's an alignment issue
that is SI-specific?
4778d2ba9306039e888628874cf5a6c32e6bc004 is the first bad commit
commit 4778d2ba9306039e888628874cf5a6c32e6bc004
Author: Neil Henning <<a href="mailto:neil.henning@amd.com">neil.henning@amd.com</a>>
Date: Wed Dec 12 16:15:21 2018 +0000
[AMDGPU] Extend the SI Load/Store optimizer to combine more things.
I've extended the load/store optimizer to be able to produce dwordx3
loads and stores, This change allows many more load/stores to be combined,
and results in much more optimal code for our hardware.
Differential Revision: <a href="https://reviews.llvm.org/D54042">https://reviews.llvm.org/D54042</a>
git-svn-id: <a href="https://llvm.org/svn/llvm-project/llvm/trunk@348937">https://llvm.org/svn/llvm-project/llvm/trunk@348937</a>
91177308-0d34-0410-b5e6-96231b3b80d8</pre>
</div>
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