<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ThinLTO/X86/cfi-devirt.ll test appears flaky"
href="https://bugs.llvm.org/show_bug.cgi?id=40351">40351</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>ThinLTO/X86/cfi-devirt.ll test appears flaky
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Interprocedural Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>vlad@tsyrklevich.net
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, peter@pcc.me.uk, tejohnson@google.com
</td>
</tr></table>
<p>
<div>
<pre>While trying to identify instances of an msan test flake, I also found that
this test is flaking on multiple bots, e.g. some example failures:
<a href="http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/9865/steps/annotate/logs/stdio">http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/9865/steps/annotate/logs/stdio</a>
<a href="http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/9862/steps/check-llvm%20check-clang%20stage3%2Fmsan/logs/stdio">http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/9862/steps/check-llvm%20check-clang%20stage3%2Fmsan/logs/stdio</a>
<a href="http://lab.llvm.org:8011/builders/clang-with-thin-lto-ubuntu/builds/14927/steps/test-stage1-compiler/logs/stdio">http://lab.llvm.org:8011/builders/clang-with-thin-lto-ubuntu/builds/14927/steps/test-stage1-compiler/logs/stdio</a>
Unfortunately the test failure itself doesn't print any useful indication as to
where it's failing:
FAIL: LLVM :: ThinLTO/X86/cfi-devirt.ll (23018 of 29363)
******************** TEST 'LLVM :: ThinLTO/X86/cfi-devirt.ll' FAILED
********************
Script:
--
: 'RUN: at line 5';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/opt
-thinlto-bc -thinlto-split-lto-unit -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
: 'RUN: at line 9';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-lto2
run
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o
-save-temps -pass-remarks=. -verify-machineinstrs=0 -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,test,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,empty,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,px
2>&1 |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=REMARK
: 'RUN: at line 24';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-dis
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3.1.4.opt.bc
-o - |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=CHECK-IR
: 'RUN: at line 28';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-lto2
run
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o
-save-temps -use-new-pm -pass-remarks=. -verify-machineinstrs=0 -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,test,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,empty,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,px
2>&1 |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=REMARK
: 'RUN: at line 43';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-dis
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3.1.4.opt.bc
-o - |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=CHECK-IR
: 'RUN: at line 50';
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/opt
-thinlto-bc -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp2.o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/Inputs/empty.ll
: 'RUN: at line 51'; not
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-lto2
run
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp2.o
-save-temps -pass-remarks=. -verify-machineinstrs=0 -o
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp3
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,test,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,empty,p
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1A1nEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1B1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZN1C1fEi,
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1B,px
-r=/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/test/ThinLTO/X86/Output/cfi-devirt.ll.tmp.o,_ZTV1C,px
2>&1 |
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck
/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm/test/ThinLTO/X86/cfi-devirt.ll
--check-prefix=ERROR
--
Exit Code: 1</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>