<html>
<head>
<base href="https://llvm.org/bugs/" />
</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 --- - [REGRESSION] against 3.6: parse + reparse cause crash"
href="https://llvm.org/bugs/show_bug.cgi?id=25363">25363</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[REGRESSION] against 3.6: parse + reparse cause crash
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.7
</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>libclang
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dushistov@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>klimek@google.com, 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=15197" name="attach_15197" title="test to reproduce problem">attachment 15197</a> <a href="attachment.cgi?id=15197&action=edit" title="test to reproduce problem">[details]</a></span>
test to reproduce problem
The simple code like this:
CXIndex index = clang_createIndex(0, 1);
CXTranslationUnit out_TU;
auto error = clang_parseTranslationUnit2(index, argv[1],
compile_args, sizeof(compile_args)
/ sizeof(compile_args[0]), nullptr, 0,
CXTranslationUnit_PrecompiledPreamble |
CXTranslationUnit_CacheCompletionResults
|
CXTranslationUnit_SkipFunctionBodies
, &out_TU);
if (error == CXError_Crashed)
printf("crashed..!\n");
else
printf("res: %d\n", int(error));
clang_reparseTranslationUnit(out_TU, 0, nullptr,
clang_defaultReparseOptions(out_TU));
works fine with clang 3.6, but failed with 3.7, with such message:
clang::CXXConstructorDecl* clang::CXXConstructorDecl::getTargetConstructor()
const: Assertion `isDelegatingConstructor() && "Not a delegating constructor!"'
failed.
The git bisect show that commit that cause problem is:
Author: Richard Smith <<a href="mailto:richard-llvm@metafoo.co.uk">richard-llvm@metafoo.co.uk</a>>
Date: Tue Mar 24 06:36:48 2015 +0000
[modules] Deserialize CXXCtorInitializer list for a constructor lazily.
Previously we'd deserialize the list of mem-initializers for a constructor
when
we deserialized the declaration of the constructor. That could trigger a
significant amount of unnecessary work (pulling in all base classes
recursively, for a start) and was causing problems for the modules buildbot
due
to cyclic deserializations. We now deserialize these on demand.
This creates a certain amount of duplication with the handling of
CXXBaseSpecifiers; I'll look into reducing that next.
git-svn-id: <a href="https://llvm.org/svn/llvm-project/cfe/trunk@233052">https://llvm.org/svn/llvm-project/cfe/trunk@233052</a>
91177308-0d34-0410-b5e6-96231b3b80d8
To reproduce problem you need test_complete_at.cpp (see attachment),
and as input rtags/src/Source.cpp:
git clone <a href="https://github.com/Andersbakken/rtags.git">https://github.com/Andersbakken/rtags.git</a>
git checkout c85d54789ceb44da701051de467208897ff750a4
I tried create preprocessed sources, but for some reason with preprocessed
sources bug not reproduced, command line to reproduce bug:
$./bin/test_complete_at /home/evgeniy/projects/study_ide/rtags/src/Source.cpp
Side note: if I comment CXTranslationUnit_SkipFunctionBodies in
test_complete_at.cpp test start work without errors.</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>