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<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 3.6 asserting: UNREACHABLE executed lib/IR/Value.cpp:781!"
href="http://llvm.org/bugs/show_bug.cgi?id=22293">22293</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Clang 3.6 asserting: UNREACHABLE executed lib/IR/Value.cpp:781!
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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>release blocker
</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>agenda2010@grueninger.de
</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>I tested Clang 3.6-branch in version r226728, self-compiled with Clang like
described at the getting started page with openSuse's Clang 3.5 and -O3.
I checkout our modules and while compiling them, the compiler errored out with
the message below. The setup is a little bit of work, as several modules from
Dune (dune-project.org) have to be installed together with the external module
dune-alugrid.
Please tell me, if you need some more files or advice how to reproduce this.
[ 85%] Building CXX object
lib/CMakeFiles/dunealugrid.dir/__/dune/alugrid/impl/2d/vtx_btree.cc.o
While deleting: void (%"struct.ALU2DGrid::Vtx_btree<2, 3>::Node"*)* %
An asserting value handle still pointed to this value!
UNREACHABLE executed at /home/asdf/downloads/llvm-3.6-svn/lib/IR/Value.cpp:781!
#0 0x1536bf8 llvm::sys::PrintStackTrace(_IO_FILE*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1536bf8)
#1 0x15381db SignalHandler(int)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x15381db)
#2 0x7f1cb5f4b890 __restore_rt (/lib64/libpthread.so.0+0xf890)
#3 0x7f1cb5109187 __GI_raise (/lib64/libc.so.6+0x35187)
#4 0x7f1cb510a538 __GI_abort (/lib64/libc.so.6+0x36538)
#5 0x14fe953 llvm::llvm_unreachable_internal(char const*, char const*, unsigned
int) (/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x14fe953)
#6 0x12475eb llvm::ValueHandleBase::ValueIsDeleted(llvm::Value*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x12475eb)
#7 0x1246fa9 llvm::Value::~Value()
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1246fa9)
#8 0x1195c6d llvm::Function::~Function()
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1195c6d)
#9 0x1195fb9 llvm::Function::~Function()
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1195fb9)
#10 0x1a448ba (anonymous
namespace)::ItaniumCXXABI::emitCXXStructor(clang::CXXMethodDecl const*,
clang::CodeGen::StructorType)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1a448ba)
#11 0x19f3679
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x19f3679)
#12 0x1a40f14 (anonymous
namespace)::ItaniumCXXABI::EmitCXXDestructors(clang::CXXDestructorDecl const*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1a40f14)
#13 0x19958ef (anonymous
namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x19958ef)
#14 0x198c717 clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x198c717)
#15 0x257211a clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation,
clang::FunctionDecl*, bool, bool)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x257211a)
#16 0x253fc6f clang::Sema::InstantiateClassMembers(clang::SourceLocation,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x253fc6f)
#17 0x253fed5 clang::Sema::InstantiateClassMembers(clang::SourceLocation,
clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x253fed5)
#18 0x25402d4
clang::Sema::InstantiateClassTemplateSpecializationMembers(clang::SourceLocation,
clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x25402d4)
#19 0x24c1718 clang::Sema::ActOnExplicitInstantiation(clang::Scope*,
clang::SourceLocation, clang::SourceLocation, unsigned int,
clang::SourceLocation, clang::CXXScopeSpec const&,
clang::OpaquePtr<clang::TemplateName>, clang::SourceLocation,
clang::SourceLocation, llvm::MutableArrayRef<clang::ParsedTemplateArgument>,
clang::SourceLocation, clang::AttributeList*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x24c1718)
#20 0x1f8064c clang::Parser::ParseClassSpecifier(clang::tok::TokenKind,
clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo
const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext,
clang::Parser::ParsedAttributesWithRange&)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f8064c)
#21 0x1f62f1e clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f62f1e)
#22 0x1fda4e4 clang::Parser::ParseSingleDeclarationAfterTemplate(unsigned int,
clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject&,
clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1fda4e4)
#23 0x1fd99b4 clang::Parser::ParseExplicitInstantiation(unsigned int,
clang::SourceLocation, clang::SourceLocation, clang::SourceLocation&,
clang::AccessSpecifier)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1fd99b4)
#24 0x1fd9881 clang::Parser::ParseDeclarationStartingWithTemplate(unsigned int,
clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1fd9881)
#25 0x1f61d75 clang::Parser::ParseDeclaration(unsigned int,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f61d75)
#26 0x1f52953
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f52953)
#27 0x1f7a699
clang::Parser::ParseInnerNamespace(std::vector<clang::SourceLocation,
std::allocator<clang::SourceLocation> >&, std::vector<clang::IdentifierInfo*,
std::allocator<clang::IdentifierInfo*> >&, std::vector<clang::SourceLocation,
std::allocator<clang::SourceLocation> >&, unsigned int, clang::SourceLocation&,
clang::ParsedAttributes&, clang::BalancedDelimiterTracker&)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f7a699)
#28 0x1f79ee2 clang::Parser::ParseNamespace(unsigned int,
clang::SourceLocation&, clang::SourceLocation)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f79ee2)
#29 0x1f61bb8 clang::Parser::ParseDeclaration(unsigned int,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f61bb8)
#30 0x1f52953
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f52953)
#31 0x1f5218a
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f5218a)
#32 0x1f4df16 clang::ParseAST(clang::Sema&, bool, bool)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x1f4df16)
#33 0x16e68ae clang::FrontendAction::Execute()
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x16e68ae)
#34 0x16b770c clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x16b770c)
#35 0x176fce2 clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x176fce2)
#36 0x6f6ff4 cc1_main(llvm::ArrayRef<char const*>, char const*, void*)
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x6f6ff4)
#37 0x6f5bc0 main
(/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6+0x6f5bc0)
#38 0x7f1cb50f5b05 __libc_start_main (/lib64/libc.so.6+0x21b05)
#39 0x6f27aa _start
/home/abuild/rpmbuild/BUILD/glibc-2.19/csu/../sysdeps/x86_64/start.S:125:0
Stack dump:
0. Program arguments:
/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6 -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name
vtx_btree.cc -mrelocation-model static -mthread-model posix -mdisable-fp-elim
-relaxed-aliasing -fmath-errno -masm-verbose -mconstructor-aliases
-munwind-tables -fuse-init-array -target-cpu x86-64 -g -dwarf-column-info
-coverage-file
/home/asdf/Documents/dune/complete/dune-alugrid/build-cmake/lib/CMakeFiles/dunealugrid.dir/__/dune/alugrid/impl/2d/vtx_btree.cc.o
-resource-dir /home/asdf/downloads/llvm-3.6-svn/build/bin/../lib/clang/3.6.0 -D
HAVE_CONFIG_H -D DUNE_AVOID_CAPABILITIES_IS_PARALLEL_DEPRECATION_WARNING -D
DUNE_AVOID_SGRID_DEPRE_WARNING_BECAUSE_I_KNOW_WHAT_IM_DOING -D
DISABLE_DEPRECATED_METHOD_CHECK=1 -I
/home/asdf/Documents/dune/complete/dune-alugrid/build-cmake -I
/home/asdf/Documents/dune/complete/dune-alugrid -I
/usr/lib64/mpi/gcc/openmpi/include/openmpi/opal/mca/hwloc/hwloc152/hwloc/include
-I
/usr/lib64/mpi/gcc/openmpi/include/openmpi/opal/mca/event/libevent2019/libevent
-I
/usr/lib64/mpi/gcc/openmpi/include/openmpi/opal/mca/event/libevent2019/libevent/include
-I /usr/lib64/mpi/gcc/openmpi/include -I
/usr/lib64/mpi/gcc/openmpi/include/openmpi -I
/home/asdf/Documents/dune/complete/dune-common -I
/home/asdf/Documents/dune/complete/dune-geometry -I
/home/asdf/Documents/dune/complete/dune-grid -internal-isystem
/usr/lib64/gcc/x86_64-suse-linux/4.9/../../../../include/c++/4.9
-internal-isystem
/usr/lib64/gcc/x86_64-suse-linux/4.9/../../../../include/c++/4.9/x86_64-suse-linux
-internal-isystem
/usr/lib64/gcc/x86_64-suse-linux/4.9/../../../../include/c++/4.9/backward
-internal-isystem /usr/local/include -internal-isystem
/home/asdf/downloads/llvm-3.6-svn/build/bin/../lib/clang/3.6.0/include
-internal-externc-isystem /include -internal-externc-isystem /usr/include -O0
-Wall -Wmissing-include-dirs -Wcast-align -Wno-cast-align -Wno-sign-compare
-Wno-unused-parameter -pedantic -std=c++11 -fdeprecated-macro
-fdebug-compilation-dir
/home/asdf/Documents/dune/complete/dune-alugrid/build-cmake/lib -ferror-limit
19 -fmessage-length 270 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions
-fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o
CMakeFiles/dunealugrid.dir/__/dune/alugrid/impl/2d/vtx_btree.cc.o -x c++
/home/asdf/Documents/dune/complete/dune-alugrid/dune/alugrid/impl/2d/vtx_btree.cc
1.
/home/asdf/Documents/dune/complete/dune-alugrid/dune/alugrid/impl/2d/vtx_btree.cc:195:35:
current parser token ';'
2.
/home/asdf/Documents/dune/complete/dune-alugrid/dune/alugrid/impl/2d/vtx_btree.cc:7:1:
parsing namespace 'ALU2DGrid'
3.
/home/asdf/Documents/dune/complete/dune-alugrid/dune/alugrid/impl/2d/vtx_btree.h:39:7:
LLVM IR generation of declaration 'ALU2DGrid::Vtx_btree<2, 3>::Node::~Node'
4.
/home/asdf/Documents/dune/complete/dune-alugrid/dune/alugrid/impl/2d/vtx_btree.h:39:7:
Generating code for declaration 'ALU2DGrid::Vtx_btree<2, 3>::Node::~Node'
clang-3.6: error: unable to execute command: Aborted
clang-3.6: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.6.0 (branches/release_36 226782)
Target: x86_64-unknown-linux-gnu
Thread model: posix
clang-3.6: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://llvm.org/bugs/">http://llvm.org/bugs/</a> and include the crash backtrace, preprocessed source, and
associated run script.
clang-3.6: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-3.6: note: diagnostic msg: /tmp/vtx_btree-80dfab.cpp
clang-3.6: note: diagnostic msg: /tmp/vtx_btree-80dfab.sh
clang-3.6: note: diagnostic msg:
********************
/tmp/vtx_btree-80dfab.sh:
"/home/asdf/downloads/llvm-3.6-svn/build/bin/clang-3.6" "-cc1" "-triple"
"x86_64-unknown-linux-gnu" "-emit-obj" "-mrelax-all" "-disable-free"
"-main-file-name" "vtx_btree.cc" "-mrelocation-model" "static" "-mthread-model"
"posix" "-mdisable-fp-elim" "-relaxed-aliasing" "-fmath-errno" "-masm-verbose"
"-mconstructor-aliases" "-munwind-tables" "-fuse-init-array" "-target-cpu"
"x86-64" "-g" "-dwarf-column-info" "-D" "HAVE_CONFIG_H" "-D"
"DUNE_AVOID_CAPABILITIES_IS_PARALLEL_DEPRECATION_WARNING" "-D"
"DUNE_AVOID_SGRID_DEPRE_WARNING_BECAUSE_I_KNOW_WHAT_IM_DOING" "-D"
"DISABLE_DEPRECATED_METHOD_CHECK=1" "-O0" "-Wall" "-Wmissing-include-dirs"
"-Wcast-align" "-Wno-cast-align" "-Wno-sign-compare" "-Wno-unused-parameter"
"-pedantic" "-std=c++11" "-fdeprecated-macro" "-ferror-limit" "19"
"-fmessage-length" "270" "-mstackrealign" "-fobjc-runtime=gcc"
"-fcxx-exceptions" "-fexceptions" "-fdiagnostics-show-option"
"-fcolor-diagnostics" "-x" "c++" "vtx_btree-80dfab.cpp"</pre>
</div>
</p>
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