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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - protoc miscompiled by clang"
href="https://llvm.org/bugs/show_bug.cgi?id=22940">22940</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>protoc miscompiled by clang
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</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>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hans@chromium.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>protoc, used in the Chromium build, started miscompiling list night.
Last green build at Clang revision: r232443, first bad: r232457
Repro in Chromium:
$ ninja -C out/Debug
gen/protoc_out/components/autofill/content/browser/risk/proto/fingerprint.pb.cc
The actual failing command:
$ out/Debug/protoc --cpp_out
out/Debug/gen/protoc_out/components/autofill/content/browser/risk/proto
--python_out out/Debug/pyproto/components/autofill/content/browser/risk/proto
--proto_path=components/autofill/content/browser/risk/proto
components/autofill/content/browser/risk/proto/fingerprint.proto
top of the stack:
#0 std::pair<google::protobuf::Descriptor const*, int>::pair (this=0x591e48)
at
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/bits/stl_pair.h:109
#1 0x00000000004ee05c in
google::protobuf::SimpleDescriptorDatabase::DescriptorIndex<std::pair<void
const*, int> >::FindFile (this=0x5e8018,
filename="google/protobuf/descriptor.proto") at
../../third_party/protobuf/src/google/protobuf/descriptor_database.cc:176
#2 0x00000000004ebc0c in
google::protobuf::EncodedDescriptorDatabase::FindFileByName (this=0x5e8010,
filename="google/protobuf/descriptor.proto", output=0x7fffffffc4f8) at
../../third_party/protobuf/src/google/protobuf/descriptor_database.cc:331
#3 0x000000000047f448 in
google::protobuf::DescriptorPool::TryFindFileInFallbackDatabase (this=0x5e8130,
name="google/protobuf/descriptor.proto") at
../../third_party/protobuf/src/google/protobuf/descriptor.cc:1324
#4 0x000000000047f316 in google::protobuf::DescriptorPool::FindFileByName
(this=0x5e8130, name="google/protobuf/descriptor.proto") at
../../third_party/protobuf/src/google/protobuf/descriptor.cc:970
#5 0x00000000004bfa68 in
google::protobuf::protobuf_AssignDesc_google_2fprotobuf_2fdescriptor_2eproto ()
at ../../third_party/protobuf/src/google/protobuf/descriptor.pb.cc:95</pre>
</div>
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