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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - 7 piglit OpenCL tests regressed on AMD CAICOS GPU"
href="https://llvm.org/bugs/show_bug.cgi?id=26141">26141</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>7 piglit OpenCL tests regressed on AMD CAICOS GPU
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Keywords</th>
<td>regression
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pavel.ondracka@email.cz
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=15630" name="attach_15630" title="backtrace">attachment 15630</a> <a href="attachment.cgi?id=15630&action=edit" title="backtrace">[details]</a></span>
backtrace
Specifically, the piglit opencl tests:
builtin-int-mad_sat-1.0.generated
builtin-long-clamp-1.1.generated
builtin-long-max-1.1.generated
builtin-long-min-1.1.generated
builtin-ulong-clamp-1.1.generated
builtin-ulong-max-1.1.generated
builtin-ulong-min-1.1.generated
pass with the llvm 3.7.1 branch and fail with latest master when run on the AMD
CAICOS GPU with mesa clover opencl.
example output from
generated_tests/cl/builtin/int/builtin-int-mad_sat-1.0.generated.cl:
## Test: Test int mad_sat built-in on CL 1.1
(/home/ondracka/graphics/piglit/tests/cl/program/program-tester.c) ##
# Platform supporting only version 1.1. Running test on that version.
# Running on:
# Platform: Clover
# Device: AMD CAICOS (DRM 2.43.0, LLVM 3.9.0)
# OpenCL version: 1.2
# OpenCL C version: 1.1
# Build options: -cl-std=CL1.1
ExpandIntegerResult #0: t42: i64 = smax t36, Constant:i64<-2147483648>
Do not know how to expand the result of this operator!
UNREACHABLE executed at
/home/ondracka/graphics/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp:1296!
Neúspěšně ukončen (SIGABRT)
Full backtrace attached.
No regression test yet, since llvm is big and the build takes ages, however I
can do it if needed and if I can get some pointers how to speed up the
bisection or the build...
System:
GPU: 06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Caicos XTX [Radeon HD 8490 / R5 235X OEM]
llvm: 92d091bf6f3da5f67e59b94a053125d3f38b5efb
libclc: b858eb3811ca8b49a66653473ef309eadcd491af
mesa: f4ab7340ca72f6b61fe6e3e0995360546d2d6287</pre>
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