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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion failure: /lib/Analysis/ScopInfo.cpp:797: void polly::MemoryAccess::computeBoundsOnAccessRelation(unsigned int): Assertion `M in.sle(Max) && "Minimum expected to be less or equal than max"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=32715">32715</a>
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<th>Summary</th>
<td>Assertion failure: /lib/Analysis/ScopInfo.cpp:797: void polly::MemoryAccess::computeBoundsOnAccessRelation(unsigned int): Assertion `M in.sle(Max) && "Minimum expected to be less or equal than max"' failed.
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<th>Product</th>
<td>Polly
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Other
</td>
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<th>Assignee</th>
<td>polly-dev@googlegroups.com
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<th>Reporter</th>
<td>sabuasal@codeaurora.org
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>Created <span class=""><a href="attachment.cgi?id=18315" name="attach_18315" title="reduced ll file for the test case">attachment 18315</a> <a href="attachment.cgi?id=18315&action=edit" title="reduced ll file for the test case">[details]</a></span>
reduced ll file for the test case
This bug causes a crash in ScopInfo with an assertion failure:
"opt: lib/Analysis/ScopInfo.cpp:797: void
polly::MemoryAccess::computeBoundsOnAccessRelation(unsigned int): Assertion `M
in.sle(Max) && "Minimum expected to be less or equal than max"' failed."
Reduced IR attached.
can recrete the crash with
opt -S -O3 -polly -polly-scops -polly-tiling=false -polly-allow-nonaffine
-polly-process-unprofitable ./test_case.ll
My investigation shows this was introduced by r294891 :
Author: Tobias Grosser <<a href="mailto:tobias@grosser.es">tobias@grosser.es</a>>
Date: Sun Feb 12 08:11:12 2017 +0000
Do not use wrapping ranges to bound non-affine accesses</pre>
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