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20 hours ago •
llvm
llvm
crash on x86_64-linux-gnu (gcc accepts the program. Assertion `V.isLValue()' failed.)
| Bugzilla Link | 31010 |
| Version | trunk |
| OS | Windows NT |
| CC | @hfinkel |
Extended Description
gcc accepts the test program, whereas clang crashes with an assertion failure.
$ clang-trunk -v
clang version 4.0.0 (trunk 286765)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9.2
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.2
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$
$ clang-trunk small.c -w
clang-4.0: /tmp/llvm-builder/llvm-source-trunk/tools/clang/lib/AST/ExprConstant.cpp:1089: void {anonymous}::LValue::setFrom(clang::ASTContext&, const clang::APValue&): Assertion `V.isLValue()' failed.
#​0 0x0000000001e47245 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/usr/local/clang-trunk/bin/clang-4.0+0x1e47245)
#​1 0x0000000001e4534e llvm::sys::RunSignalHandlers() (/usr/local/clang-trunk/bin/clang-4.0+0x1e4534e)
#​2 0x0000000001e454b0 SignalHandler(int) (/usr/local/clang-trunk/bin/clang-4.0+0x1e454b0)
#​3 0x00007ff936b848d0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0xf8d0)
#​4 0x00007ff93578c067 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x35067)
#​5 0x00007ff93578d448 abort (/lib/x86_64-linux-gnu/libc.so.6+0x36448)
#​6 0x00007ff935785266 (/lib/x86_64-linux-gnu/libc.so.6+0x2e266)
#​7 0x00007ff935785312 (/lib/x86_64-linux-gnu/libc.so.6+0x2e312)
#​8 0x000000000342aafc (anonymous namespace)::LValue::setFrom(clang::ASTContext&, clang::APValue const&) (/usr/local/clang-trunk/bin/clang-4.0+0x342aafc)
#​9 0x000000000346fd59 (anonymous namespace)::PointerExprEvaluator::VisitCastExpr(clang::CastExpr const*) (/usr/local/clang-trunk/bin/clang-4.0+0x346fd59)
#​10 0x0000000003440a88 clang::StmtVisitorBase<clang::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) (/usr/local/clang-trunk/bin/clang-4.0+0x3440a88)
#​11 0x00000000034418ae EvaluatePointer(clang::Expr const*, (anonymous namespace)::LValue&, (anonymous namespace)::EvalInfo&) (/usr/local/clang-trunk/bin/clang-4.0+0x34418ae)
#​12 0x000000000345f1c6 (anonymous namespace)::IntExprEvaluator::VisitBinaryOperator(clang::BinaryOperator const*) (/usr/local/clang-trunk/bin/clang-4.0+0x345f1c6)
#​13 0x000000000343cb9d clang::StmtVisitorBase<clang::make_const_ptr, (anonymous namespace)::IntExprEvaluator, bool>::Visit(clang::Stmt const*) (/usr/local/clang-trunk/bin/clang-4.0+0x343cb9d)
#​14 0x00000000034436e0 Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) (/usr/local/clang-trunk/bin/clang-4.0+0x34436e0)
#​15 0x0000000003446b0e EvaluateAsRValue((anonymous namespace)::EvalInfo&, clang::Expr const*, clang::APValue&) (/usr/local/clang-trunk/bin/clang-4.0+0x3446b0e)
#​16 0x0000000003447ea7 clang::Expr::EvaluateForOverflow(clang::ASTContext const&) const (/usr/local/clang-trunk/bin/clang-4.0+0x3447ea7)
#​17 0x0000000002b91896 clang::Sema::CheckForIntOverflow(clang::Expr*) (/usr/local/clang-trunk/bin/clang-4.0+0x2b91896)
#​18 0x0000000002bba0ae clang::Sema::CheckCompletedExpr(clang::Expr*, clang::SourceLocation, bool) (/usr/local/clang-trunk/bin/clang-4.0+0x2bba0ae)
#​19 0x0000000002d73af5 clang::Sema::ActOnFinishFullExpr(clang::Expr*, clang::SourceLocation, bool, bool, bool) (/usr/local/clang-trunk/bin/clang-4.0+0x2d73af5)
#​20 0x0000000002d0f261 clang::Sema::ActOnCondition(clang::Scope*, clang::SourceLocation, clang::Expr*, clang::Sema::ConditionKind) (/usr/local/clang-trunk/bin/clang-4.0+0x2d0f261)
#​21 0x00000000029f8fc2 clang::Parser::ParseParenExprOrCondition(clang::ActionResult<clang::Stmt*, true>*, clang::Sema::ConditionResult&, clang::SourceLocation, clang::Sema::ConditionKind) (/usr/local/clang-trunk/bin/clang-4.0+0x29f8fc2)
#​22 0x00000000029fd04b clang::Parser::ParseIfStatement(clang::SourceLocation*) (/usr/local/clang-trunk/bin/clang-4.0+0x29fd04b)
#​23 0x00000000029fa7db clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::AllowedContsructsKind, clang::SourceLocation*, clang::Parser::ParsedAttributesWithRange&) (/usr/local/clang-trunk/bin/clang-4.0+0x29fa7db)
#​24 0x00000000029facce clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::AllowedContsructsKind, clang::SourceLocation*) (/usr/local/clang-trunk/bin/clang-4.0+0x29facce)
#​25 0x00000000029fe697 clang::Parser::ParseCompoundStatementBody(bool) (/usr/local/clang-trunk/bin/clang-4.0+0x29fe697)
#​26 0x0000000002a00b89 clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/usr/local/clang-trunk/bin/clang-4.0+0x2a00b89)
#​27 0x0000000002982c25 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/usr/local/clang-trunk/bin/clang-4.0+0x2982c25)
#​28 0x00000000029a1d4c clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, unsigned int, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/usr/local/clang-trunk/bin/clang-4.0+0x29a1d4c)
#​29 0x000000000297d729 clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/usr/local/clang-trunk/bin/clang-4.0+0x297d729)
#​30 0x000000000297ddd1 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*, clang::AccessSpecifier) [clone .part.225] (/usr/local/clang-trunk/bin/clang-4.0+0x297ddd1)
#​31 0x000000000297de0f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/usr/local/clang-trunk/bin/clang-4.0+0x297de0f)
#​32 0x0000000002980218 clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*) (/usr/local/clang-trunk/bin/clang-4.0+0x2980218)
#​33 0x00000000029836f2 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) (/usr/local/clang-trunk/bin/clang-4.0+0x29836f2)
#​34 0x000000000298392c clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) (/usr/local/clang-trunk/bin/clang-4.0+0x298392c)
#​35 0x000000000297b09b clang::ParseAST(clang::Sema&, bool, bool) (/usr/local/clang-trunk/bin/clang-4.0+0x297b09b)
#​36 0x00000000025aa25b clang::CodeGenAction::ExecuteAction() (/usr/local/clang-trunk/bin/clang-4.0+0x25aa25b)
#​37 0x00000000022c35ee clang::FrontendAction::Execute() (/usr/local/clang-trunk/bin/clang-4.0+0x22c35ee)
#​38 0x000000000229953e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/local/clang-trunk/bin/clang-4.0+0x229953e)
#​39 0x000000000234cfb2 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/local/clang-trunk/bin/clang-4.0+0x234cfb2)
#​40 0x0000000000be3c68 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/local/clang-trunk/bin/clang-4.0+0xbe3c68)
#​41 0x0000000000b86466 main (/usr/local/clang-trunk/bin/clang-4.0+0xb86466)
#​42 0x00007ff935778b45 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b45)
#​43 0x0000000000bdfebe _start (/usr/local/clang-trunk/bin/clang-4.0+0xbdfebe)
Stack dump:
0. Program arguments: /usr/local/clang-trunk/bin/clang-4.0 -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name small.c -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -resource-dir /usr/local/clang-trunk/bin/../lib/clang/4.0.0 -internal-isystem /usr/local/include -internal-isystem /usr/local/clang-trunk/bin/../lib/clang/4.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -w -fdebug-compilation-dir /home/cnsun/workspace/meta-compiler/error-fuzzer/exp-runs/crash/RandomTokenManipulationFuzzingEngine/20161028-clang-trunk--Weverything-O3-c-std=c11-build-050451/reduction -ferror-limit 19 -fmessage-length 261 -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/small-88cf10.o -x c small.c
1. small.c:2:20: current parser token ')'
2. small.c:1:11: parsing function body 'x'
3. small.c:1:11: in compound statement ('{}')
clang-4.0: error: unable to execute command: Aborted
clang-4.0: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 4.0.0 (trunk 286765)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
clang-4.0: 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-4.0: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-4.0: note: diagnostic msg: /tmp/small-120235.c
clang-4.0: note: diagnostic msg: /tmp/small-120235.sh
clang-4.0: note: diagnostic msg:
********************
$
$ gcc-trunk -w -c small.c
$
$ cat small.c
void x () {
if (&&e - &&b < x)
x ();
b:
goto *&&b;
e:
;
}
Confirmed: https://godbolt.org/z/xPfzzqvsa
Assertion:
clang++: /root/llvm-project/clang/lib/AST/ExprConstant.cpp:1575:
void {anonymous}::LValue::setFrom(clang::ASTContext&, const clang::APValue&):
Assertion `V.isLValue() && "Setting LValue from a non-LValue?"' failed.
Backtrace:
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -gdwarf-4 -g -o /app/output.s -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -x c <source>
1. <source>:2:20: current parser token ')'
2. <source>:1:11: parsing function body 'x'
3. <source>:1:11: in compound statement ('{}')
#0 0x000055f3f11d9dbf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3c12dbf)
#1 0x000055f3f11d7b2c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3c10b2c)
#2 0x000055f3f11211a8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007f9f1548f420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
#4 0x00007f9f14f5c00b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4300b)
#5 0x00007f9f14f3b859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22859)
#6 0x00007f9f14f3b729 (/lib/x86_64-linux-gnu/libc.so.6+0x22729)
#7 0x00007f9f14f4cfd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
#8 0x000055f3f4a4f435 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7488435)
#9 0x000055f3f4a63c35 (anonymous namespace)::LValue::setFrom(clang::ASTContext&, clang::APValue const&) ExprConstant.cpp:0:0
#10 0x000055f3f4ad78c2 (anonymous namespace)::PointerExprEvaluator::VisitCastExpr(clang::CastExpr const*) ExprConstant.cpp:0:0
#11 0x000055f3f4a8f59e clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) ExprConstant.cpp:0:0
#12 0x000055f3f4a90fc6 EvaluatePointer(clang::Expr const*, (anonymous namespace)::LValue&, (anonymous namespace)::EvalInfo&, bool) ExprConstant.cpp:0:0
#13 0x000055f3f4addac6 (anonymous namespace)::IntExprEvaluator::VisitBinaryOperator(clang::BinaryOperator const*) ExprConstant.cpp:0:0
#14 0x000055f3f4a88c25 clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::IntExprEvaluator, bool>::Visit(clang::Stmt const*) ExprConstant.cpp:0:0
#15 0x000055f3f4a776c6 Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) ExprConstant.cpp:0:0
#16 0x000055f3f4a813e9 EvaluateAsRValue((anonymous namespace)::EvalInfo&, clang::Expr const*, clang::APValue&) ExprConstant.cpp:0:0
#17 0x000055f3f4a82111 clang::Expr::EvaluateForOverflow(clang::ASTContext const&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x74bb111)
#18 0x000055f3f3af1da5 clang::Sema::CheckForIntOverflow(clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x652ada5)
#19 0x000055f3f3b45845 clang::Sema::CheckCompletedExpr(clang::Expr*, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x657e845)
#20 0x000055f3f3fc3a9a clang::Sema::ActOnFinishFullExpr(clang::Expr*, clang::SourceLocation, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69fca9a)
#21 0x000055f3f3eafa13 clang::Sema::ActOnCondition(clang::Scope*, clang::SourceLocation, clang::Expr*, clang::Sema::ConditionKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x68e8a13)
#22 0x000055f3f3a036eb clang::Parser::ParseParenExprOrCondition(clang::ActionResult<clang::Stmt*, true>*, clang::Sema::ConditionResult&, clang::SourceLocation, clang::Sema::ConditionKind, clang::SourceLocation&, clang::SourceLocation&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x643c6eb)
#23 0x000055f3f3a0be86 clang::Parser::ParseIfStatement(clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6444e86)
#24 0x000055f3f3a0583c clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x643e83c)
#25 0x000055f3f3a06d11 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x643fd11)
#26 0x000055f3f3a07d09 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6440d09)
#27 0x000055f3f3a096ba clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x64426ba)
#28 0x000055f3f3934421 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x636d421)
#29 0x000055f3f395b2f0 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x63942f0)
#30 0x000055f3f3927cc1 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6360cc1)
#31 0x000055f3f392857f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#32 0x000055f3f392ef21 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6367f21)
#33 0x000055f3f392f896 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6368896)
#34 0x000055f3f392fd34 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6368d34)
#35 0x000055f3f392362a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x635c62a)
#36 0x000055f3f24277c8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e607c8)
#37 0x000055f3f1c7ef09 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x46b7f09)
#38 0x000055f3f1c033d6 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x463c3d6)
#39 0x000055f3f1d619e6 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x479a9e6)
#40 0x000055f3ee69546d cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x10ce46d)
#41 0x000055f3ee69116a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#42 0x000055f3f1a6b39d void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#43 0x000055f3f11216b0 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3b5a6b0)
#44 0x000055f3f1a6b9bf clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#45 0x000055f3f1a330ec clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x446c0ec)
#46 0x000055f3f1a33b7d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x446cb7d)
#47 0x000055f3f1a3bc5d clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4474c5d)
#48 0x000055f3ee6936ca clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x10cc6ca)
#49 0x000055f3ee59a235 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xfd3235)
#50 0x00007f9f14f3d083 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24083)
#51 0x000055f3ee68bf4e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x10c4f4e)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
