<html>
<head>
<base href="http://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 --- - Clang crashes on simple code"
href="http://llvm.org/bugs/show_bug.cgi?id=19101">19101</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Clang crashes on simple code
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.2
</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>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>marekrusinowski@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created attachment 32329 [details]
Preprocessed source
(Crashes gcc too, bug report:
<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60493">http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60493</a>)
This simple incorrect code (works here to: <a href="http://ideone.com/QPwEPO">http://ideone.com/QPwEPO</a>):
#include <iterator>
template <class T>
class Splay {
public:
class iterator;
};
template <class T, class D>
class Splay<T>::iterator : std::iterator<std::forward_iterator_tag, D> {
};
Splay<int>::iterator it;
Crashes clang with output:
gcc_segfault.cpp:9:1: error: too many template parameters in template
redeclaration
template <class T, class D>
^~~~~~~~~~~~~~~~~~~~~~~~~~~
gcc_segfault.cpp:3:1: note: previous template declaration is here
template <class T>
^~~~~~~~~~~~~~~~~~
0 libLLVM-3.2.so.1 0x00002affdc0038df
1 libLLVM-3.2.so.1 0x00002affdc003d49
2 libpthread.so.0 0x00002affdca11880
3 clang 0x0000000000f853c0 clang::TagType::getDecl() const + 0
4 clang 0x00000000009ab044
5 clang 0x00000000009c17a3
clang::Sema::DeclareImplicitCopyConstructor(clang::CXXRecordDecl*) + 643
6 clang 0x0000000000a7dfbb
clang::Sema::LookupConstructors(clang::CXXRecordDecl*) + 251
7 clang 0x0000000000a67005
8 clang 0x0000000000a70942
clang::InitializationSequence::InitializationSequence(clang::Sema&,
clang::InitializedEntity const&, clang::InitializationKind const&,
clang::Expr**, unsigned int) + 1522
9 clang 0x0000000000977c7c
clang::Sema::ActOnUninitializedDecl(clang::Decl*, bool) + 428
10 clang 0x00000000008861fb
clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&,
clang::Parser::ParsedTemplateInfo const&) + 203
11 clang 0x000000000088eaa4
clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, unsigned int, bool,
clang::SourceLocation*, clang::Parser::ForRangeInit*) + 420
12 clang 0x000000000087d914
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier) + 228
13 clang 0x000000000087e0a9
14 clang 0x000000000087e0df
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier) + 31
15 clang 0x000000000087f583
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) + 83
16 clang 0x000000000088021f
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) + 191
17 clang 0x000000000087886a clang::ParseAST(clang::Sema&, bool,
bool) + 266
18 clang 0x0000000000618101 clang::FrontendAction::Execute() +
97
19 clang 0x00000000005ff6ea
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 282
20 clang 0x00000000005e9152
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1378
21 clang 0x00000000005e4258 cc1_main(char const**, char const**,
char const*, void*) + 1144
22 clang 0x00000000005e313f main + 7247
23 libc.so.6 0x00002affdd869b45 __libc_start_main + 245
24 clang 0x00000000005e3c67
Stack dump:
0. Program arguments: /usr/bin/clang -cc1 -triple x86_64-pc-linux-gnu
-emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name
gcc_segfault.cpp -mrelocation-model static -mdisable-fp-elim -fmath-errno
-masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array
-target-cpu x86-64 -target-linker-version 2.23.52.20130727
-momit-leaf-frame-pointer -resource-dir /usr/bin/../lib/clang/3.2
-fmodule-cache-path /var/tmp/clang-module-cache -internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/x86_64-linux-gnu
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/backward
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8/x86_64-linux-gnu
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8/backward
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8/x86_64-linux-gnu
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8/backward
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/x86_64-linux-gnu
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/backward
-internal-isystem /usr/local/include -internal-isystem
/usr/bin/../lib/clang/3.2/include -internal-isystem
/usr/include/clang/3.2/include/ -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /usr/include
-fdeprecated-macro -fdebug-compilation-dir /home/p2004a -ferror-limit 19
-fmessage-length 238 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions
-fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o
/tmp/gcc_segfault-odFUkb.o -x c++ gcc_segfault.cpp
1. gcc_segfault.cpp:13:24: current parser token ';'
clang: error: unable to execute command: Segmentation fault
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
Debian clang version 3.2-11 (tags/RELEASE_32/final) (based on LLVM 3.2)
Target: x86_64-pc-linux-gnu
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://bugs.debian.org/">http://bugs.debian.org/</a> and include the crash backtrace, preprocessed source,
and associated run script.
clang: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/gcc_segfault-Nm2Ct7.cpp
clang: note: diagnostic msg: /tmp/gcc_segfault-Nm2Ct7.sh
clang: note: diagnostic msg:
********************
Proccessed source (/tmp/gcc_segfault-Nm2Ct7.cpp) in attachment.
clang version:
Debian clang version 3.2-11 (tags/RELEASE_32/final) (based on LLVM 3.2)
Target: x86_64-pc-linux-gnu
Thread model: posix</pre>
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