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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [amdgpu][regression][bisected] function calls on Raven break sub int loads from private or local memory"
href="https://bugs.llvm.org/show_bug.cgi?id=40936">40936</a>
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<th>Summary</th>
<td>[amdgpu][regression][bisected] function calls on Raven break sub int loads from private or local memory
</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
</td>
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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>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>jv356@scarletmail.rutgers.edu
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</tr>
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
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<pre>Created <span class=""><a href="attachment.cgi?id=21549" name="attach_21549" title="bad.asm">attachment 21549</a> <a href="attachment.cgi?id=21549&action=edit" title="bad.asm">[details]</a></span>
bad.asm
Bisected to:
df3568d8a9367a51c0368d47392f1bbb1b667603 is the first bad commit
commit df3568d8a9367a51c0368d47392f1bbb1b667603
Author: Matt Arsenault <<a href="mailto:Matthew.Arsenault@amd.com">Matthew.Arsenault@amd.com</a>>
Date: Thu Feb 28 00:40:32 2019 +0000
AMDGPU: Enable function calls by default
Fixes some crashes on illegal call situations which are unfortunately
still valid IR.
git-svn-id: <a href="https://llvm.org/svn/llvm-project/llvm/trunk@355051">https://llvm.org/svn/llvm-project/llvm/trunk@355051</a>
91177308-0d34-0410-b5e6-96231b3b80d8
The above commit regresses the following piglit tests:
vload-half-private.cl
vload-half-local.cl
vload-short-private.cl
vload-short-local.cl
vload-ushort-private.cl[0]
vload-ushort-local.cl
Note that the regression happens only on Raven (at least carrizo/iceland is
OK),
and only vec2 tests are affected.
I've verified to switching the options off on
954735141519398580615e0907a85ed0972b50cb
Fixes the issue.
[0]
<a href="https://jvesely.github.io/piglit/raven-latest-5/raven_19_02_28/program@execute@vload@vload-ushort-private.html">https://jvesely.github.io/piglit/raven-latest-5/raven_19_02_28/program@execute@vload@vload-ushort-private.html</a>
GCN assembly code of both the good and the bad case is attached</pre>
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