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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Regression(r369850): Several tests fail when building with gcc5.1, usually with Assertion `FeatureBitset({mode}) == (STI.getFeatureBits() & AllModes)' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=43149">43149</a>
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<th>Summary</th>
<td>Regression(r369850): Several tests fail when building with gcc5.1, usually with Assertion `FeatureBitset({mode}) == (STI.getFeatureBits() & AllModes)' failed.
</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>Global Analyses
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nicolasweber@gmx.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>When building with gcc5.1, these tests fail:
********************
Failing Tests (8):
LLVM :: MC/AsmParser/dot-symbol-assignment.s
LLVM :: MC/ELF/relocation-386.s
LLVM :: MC/X86/AlignedBundling/bundle-subtarget-change-error.s
LLVM :: MC/X86/address-size.s
LLVM :: MC/X86/code16gcc.s
LLVM :: MC/X86/fixup-cpu-mode.s
LLVM :: MC/X86/intel-syntax-error.s
LLVM :: MC/X86/x86-branch-relaxation.s
An example failure looks like this:
-- Testing: 46847 tests, 32 threads --
Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70
FAIL: LLVM :: MC/AsmParser/dot-symbol-assignment.s (34461 of 46847)
******************** TEST 'LLVM :: MC/AsmParser/dot-symbol-assignment.s' FAILED
********************
Script:
--
: 'RUN: at line 1';
/b/swarming/w/ir/cache/builder/src/third_party/llvm-bootstrap/bin/llvm-mc
-triple i386-unknown-unknown
/b/swarming/w/ir/cache/builder/src/third_party/llvm/llvm/test/MC/AsmParser/dot-symbol-assignment.s
| /b/swarming/w/ir/cache/builder/src/third_party/llvm-bootstrap/bin/FileCheck
/b/swarming/w/ir/cache/builder/src/third_party/llvm/llvm/test/MC/AsmParser/dot-symbol-assignment.s
--
Exit Code: 2
Command Output (stderr):
--
llvm-mc:
/b/swarming/w/ir/cache/builder/src/third_party/llvm/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp:933:
void {anonymous}::X86AsmParser::SwitchMode(unsigned int): Assertion
`FeatureBitset({mode}) == (STI.getFeatureBits() & AllModes)' failed.
Stack dump:
0. Program arguments:
/b/swarming/w/ir/cache/builder/src/third_party/llvm-bootstrap/bin/llvm-mc
-triple i386-unknown-unknown
/b/swarming/w/ir/cache/builder/src/third_party/llvm/llvm/test/MC/AsmParser/dot-symbol-assignment.s
#0 0x00000000005577ed PrintStackTraceSignalHandler(void*)
(/b/swarming/w/ir/cache/builder/src/third_party/llvm-bootstrap/bin/llvm-mc+0x5577ed)
FileCheck error: '-' is empty.
FileCheck command line:
/b/swarming/w/ir/cache/builder/src/third_party/llvm-bootstrap/bin/FileCheck
/b/swarming/w/ir/cache/builder/src/third_party/llvm/llvm/test/MC/AsmParser/dot-symbol-assignment.s
A full build log is at
<a href="https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8903903395454047440/+/steps/package_clang/0/stdout">https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8903903395454047440/+/steps/package_clang/0/stdout</a>
With other host compilers, things are fine, but for 5.1 it looks like r369852
traded the gcc ICE for a gcc miscompile.
(We're going to switch the Chromium bots to 5.3 to get out of the "find all the
5.1 bugs" business, but here's a last bug report.)
See <a href="https://bugs.chromium.org/p/chromium/issues/detail?id=998569">https://bugs.chromium.org/p/chromium/issues/detail?id=998569</a> for more
details.</pre>
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