[llvm-bugs] [Bug 33271] New: Crash in SelectionDAG while compiling libc++ test with UBSan enabled

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Jun 1 12:48:52 PDT 2017 

https://bugs.llvm.org/show_bug.cgi?id=33271

            Bug ID: 33271
           Summary: Crash in SelectionDAG while compiling libc++ test with
                    UBSan enabled
           Product: clang
           Version: 4.0
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: vsk at apple.com
                CC: llvm-bugs at lists.llvm.org

We're crashing in SelectionDAG while attempting to compile a libc++ test with
UBSan enabled:

Bot:
http://lab.llvm.org:8011/builders/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/builds/625

Failure:

******************** TEST 'libc++ ::
std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.pass.cpp'
FAILED ********************
Command: ['/usr/local/bin/clang++', '-o',
'/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/Output/bool_await_suspend.pass.cpp.o',
'-x', 'c++',
'/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.pass.cpp',
'-c', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-g', '-fno-omit-frame-pointer',
'-fsanitize=undefined', '-fno-sanitize=vptr,function,float-divide-by-zero',
'-fno-sanitize-recover=all', '-Werror=thread-safety', '-std=c++1z', '-include',
'/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/__config_site',
'-include',
'/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support/nasty_macros.hpp',
'-nostdinc++',
'-I/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/include',
'-I/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/include/c++build',
'-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS',
'-I/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support',
'-DLIBCXX_FILESYSTEM_STATIC_TEST_ROOT="/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/std/experimental/filesystem/Inputs/static_test_env"',
'-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT="/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/filesystem/Output/dynamic_env"',
'-DLIBCXX_FILESYSTEM_DYNAMIC_TEST_HELPER="/usr/bin/python2.7
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support/filesystem_dynamic_test_helper.py"',
'-O2', '-fcoroutines-ts', '-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER', '-Wall',
'-Wextra', '-Werror', '-Wuser-defined-warnings', '-Wshadow',
'-Wno-unused-command-line-argument', '-Wno-attributes',
'-Wno-pessimizing-move', '-Wno-c++11-extensions', '-Wno-user-defined-literals',
'-Wsign-compare', '-Wunused-variable', '-Wunused-parameter',
'-Wunreachable-code', '-Wno-conversion', '-Wno-unused-local-typedef',
'-Wno-#warnings', '-c']
Exit Code: 254
Standard Error:
--
clang version 5.0.0 (http://llvm.org/git/clang.git
31598e1c84304f0ce0c17fd897035955cbaec8f1) (http://llvm.org/git/llvm.git
1e9afac22cac7385bbc1b0357046b18d89044ac0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.0.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
 "/usr/local/bin/clang-5.0" -cc1 -triple x86_64-unknown-linux-gnu -emit-obj
-disable-free -main-file-name bool_await_suspend.pass.cpp -mrelocation-model
static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose
-mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64
-momit-leaf-frame-pointer -v -dwarf-column-info -debug-info-kind=limited
-dwarf-version=4 -debugger-tuning=gdb -coverage-notes-file
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/Output/bool_await_suspend.pass.cpp.gcno
-nostdinc++ -resource-dir /usr/local/lib/clang/5.0.0 -include
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/__config_site
-include
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support/nasty_macros.hpp
-D _LIBCPP_DISABLE_AVAILABILITY -I
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/include
-I
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/include/c++build
-D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -I
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support
-D
"LIBCXX_FILESYSTEM_STATIC_TEST_ROOT=\"/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/std/experimental/filesystem/Inputs/static_test_env\""
-D
"LIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT=\"/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/filesystem/Output/dynamic_env\""
-D "LIBCXX_FILESYSTEM_DYNAMIC_TEST_HELPER=\"/usr/bin/python2.7
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support/filesystem_dynamic_test_helper.py\""
-D _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -internal-isystem /usr/local/include
-internal-isystem /usr/local/lib/clang/5.0.0/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -O2 -Werror=thread-safety -Wall -Wextra
-Werror -Wuser-defined-warnings -Wshadow -Wno-unused-command-line-argument
-Wno-attributes -Wno-pessimizing-move -Wno-c++11-extensions
-Wno-user-defined-literals -Wsign-compare -Wunused-variable -Wunused-parameter
-Wunreachable-code -Wno-conversion -Wno-unused-local-typedef -Wno-#warnings
-std=c++1z -fdeprecated-macro -fdebug-compilation-dir
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end
-ferror-limit 19 -fmessage-length 0
-fsanitize=alignment,array-bounds,bool,enum,float-cast-overflow,integer-divide-by-zero,nonnull-attribute,null,object-size,return,returns-nonnull-attribute,shift-base,shift-exponent,signed-integer-overflow,unreachable,vla-bound
-fcoroutines-ts -fobjc-runtime=gcc -fcxx-exceptions -fexceptions
-fdiagnostics-show-option -vectorize-loops -vectorize-slp -o
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/Output/bool_await_suspend.pass.cpp.o
-x c++
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.pass.cpp
clang -cc1 version 5.0.0 based upon LLVM 5.0.0svn default target
x86_64-unknown-linux-gnu
ignoring nonexistent directory "/include"
#include "..." search starts here:
#include <...> search starts here:

/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/include

/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/include/c++build

/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support
 /usr/local/include
 /usr/local/lib/clang/5.0.0/include
 /usr/include/x86_64-linux-gnu
 /usr/include
End of search list.
Unknown type!
UNREACHABLE executed at /home/eric/full-llvm/llvm/lib/IR/ValueTypes.cpp:287!
#0 0x0000000001c2f774 PrintStackTraceSignalHandler(void*)
(/usr/local/bin/clang-5.0+0x1c2f774)
#1 0x0000000001c2faa6 SignalHandler(int) (/usr/local/bin/clang-5.0+0x1c2faa6)
#2 0x00007f3589c74390 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#3 0x00007f35887df428 gsignal
/build/glibc-9tT8Do/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0
#4 0x00007f35887e102a abort /build/glibc-9tT8Do/glibc-2.23/stdlib/abort.c:91:0
#5 0x0000000001be7cc7 (/usr/local/bin/clang-5.0+0x1be7cc7)
#6 0x00000000017e87db (/usr/local/bin/clang-5.0+0x17e87db)
#7 0x00000000017e7a07 llvm::EVT::getEVT(llvm::Type*, bool)
(/usr/local/bin/clang-5.0+0x17e7a07)
#8 0x0000000000852c4a llvm::TargetLoweringBase::getValueType(llvm::DataLayout
const&, llvm::Type*, bool) const (/usr/local/bin/clang-5.0+0x852c4a)
#9 0x000000000141b6e9 llvm::ComputeValueVTs(llvm::TargetLowering const&,
llvm::DataLayout const&, llvm::Type*, llvm::SmallVectorImpl<llvm::EVT>&,
llvm::SmallVectorImpl<unsigned long>*, unsigned long)
(/usr/local/bin/clang-5.0+0x141b6e9)
#10 0x000000000237b1ca
llvm::SelectionDAGBuilder::visitTargetIntrinsic(llvm::CallInst const&, unsigned
int) (/usr/local/bin/clang-5.0+0x237b1ca)
#11 0x000000000237c0a0
llvm::SelectionDAGBuilder::visitIntrinsicCall(llvm::CallInst const&, unsigned
int) (/usr/local/bin/clang-5.0+0x237c0a0)
#12 0x000000000235f67c llvm::SelectionDAGBuilder::visitCall(llvm::CallInst
const&) (/usr/local/bin/clang-5.0+0x235f67c)
#13 0x0000000002353be6 llvm::SelectionDAGBuilder::visit(llvm::Instruction
const&) (/usr/local/bin/clang-5.0+0x2353be6)
#14 0x00000000023e1b23
llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction,
true, false, void>, false, true>,
llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction, true,
false, void>, false, true>, bool&) (/usr/local/bin/clang-5.0+0x23e1b23)
#15 0x00000000023e0781
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&)
(/usr/local/bin/clang-5.0+0x23e0781)
#16 0x00000000023dce34
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&)
(/usr/local/bin/clang-5.0+0x23dce34)
#17 0x00000000010dc191 (anonymous
namespace)::X86DAGToDAGISel::runOnMachineFunction(llvm::MachineFunction&)
(/usr/local/bin/clang-5.0+0x10dc191)
#18 0x00000000014cee34
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/usr/local/bin/clang-5.0+0x14cee34)
#19 0x00000000017a6c2f llvm::FPPassManager::runOnFunction(llvm::Function&)
(/usr/local/bin/clang-5.0+0x17a6c2f)
#20 0x00000000017a6e83 llvm::FPPassManager::runOnModule(llvm::Module&)
(/usr/local/bin/clang-5.0+0x17a6e83)
#21 0x00000000017a7378 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/usr/local/bin/clang-5.0+0x17a7378)
#22 0x0000000001db926f clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
const&, llvm::Module*, clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
(/usr/local/bin/clang-5.0+0x1db926f)
#23 0x00000000024a5951
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/usr/local/bin/clang-5.0+0x24a5951)
#24 0x000000000290e2c6 clang::ParseAST(clang::Sema&, bool, bool)
(/usr/local/bin/clang-5.0+0x290e2c6)
#25 0x0000000002194a28 clang::FrontendAction::Execute()
(/usr/local/bin/clang-5.0+0x2194a28)
#26 0x000000000214a731
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/usr/local/bin/clang-5.0+0x214a731)
#27 0x000000000221a9ee
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/usr/local/bin/clang-5.0+0x221a9ee)
#28 0x000000000084278a cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/usr/local/bin/clang-5.0+0x84278a)
#29 0x0000000000840c14 main (/usr/local/bin/clang-5.0+0x840c14)
#30 0x00007f35887ca830 __libc_start_main
/build/glibc-9tT8Do/glibc-2.23/csu/../csu/libc-start.c:325:0
#31 0x000000000083dff9 _start (/usr/local/bin/clang-5.0+0x83dff9)
Stack dump:
0.      Program arguments: /usr/local/bin/clang-5.0 -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -disable-free -main-file-name
bool_await_suspend.pass.cpp -mrelocation-model static -mthread-model posix
-mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases
-munwind-tables -fuse-init-array -target-cpu x86-64 -momit-leaf-frame-pointer
-v -dwarf-column-info -debug-info-kind=limited -dwarf-version=4
-debugger-tuning=gdb -coverage-notes-file
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/Output/bool_await_suspend.pass.cpp.gcno
-nostdinc++ -resource-dir /usr/local/lib/clang/5.0.0 -include
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/__config_site
-include
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support/nasty_macros.hpp
-D _LIBCPP_DISABLE_AVAILABILITY -I
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/include
-I
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/include/c++build
-D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -I
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support
-D
LIBCXX_FILESYSTEM_STATIC_TEST_ROOT="/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/std/experimental/filesystem/Inputs/static_test_env"
-D
LIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT="/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/filesystem/Output/dynamic_env"
-D LIBCXX_FILESYSTEM_DYNAMIC_TEST_HELPER="/usr/bin/python2.7
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/support/filesystem_dynamic_test_helper.py"
-D _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -internal-isystem /usr/local/include
-internal-isystem /usr/local/lib/clang/5.0.0/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -O2 -Werror=thread-safety -Wall -Wextra
-Werror -Wuser-defined-warnings -Wshadow -Wno-unused-command-line-argument
-Wno-attributes -Wno-pessimizing-move -Wno-c++11-extensions
-Wno-user-defined-literals -Wsign-compare -Wunused-variable -Wunused-parameter
-Wunreachable-code -Wno-conversion -Wno-unused-local-typedef -Wno-#warnings
-std=c++1z -fdeprecated-macro -fdebug-compilation-dir
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end
-ferror-limit 19 -fmessage-length 0
-fsanitize=alignment,array-bounds,bool,enum,float-cast-overflow,integer-divide-by-zero,nonnull-attribute,null,object-size,return,returns-nonnull-attribute,shift-base,shift-exponent,signed-integer-overflow,unreachable,vla-bound
-fcoroutines-ts -fobjc-runtime=gcc -fcxx-exceptions -fexceptions
-fdiagnostics-show-option -vectorize-loops -vectorize-slp -o
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/build/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/Output/bool_await_suspend.pass.cpp.o
-x c++
/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.pass.cpp 
1.      <eof> parser at end of file
2.      Code generation
3.      Running pass 'Function Pass Manager' on module
'/home/llvm-builder/llvm-buildslave-root/libcxx-libcxxabi-x86_64-linux-ubuntu-ubsan/llvm/projects/libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.pass.cpp'.
4.      Running pass 'X86 DAG->DAG Instruction Selection' on function '@_Z1gv'
clang-5.0: error: unable to execute command: Aborted (core dumped)
clang-5.0: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 5.0.0 (http://llvm.org/git/clang.git
31598e1c84304f0ce0c17fd897035955cbaec8f1) (http://llvm.org/git/llvm.git
1e9afac22cac7385bbc1b0357046b18d89044ac0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
clang-5.0: note: diagnostic msg: PLEASE submit a bug report to
http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and
associated run script.
clang-5.0: note: diagnostic msg: 
********************

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