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[clang++] undeduced type in IR-generation UNREACHABLE executed at /root/llvm-project/clang/lib/CodeGen/CodeGenFunction.cpp:267! #112153

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yijan4845 opened this issue Oct 14, 2024 · 1 comment
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[clang++] undeduced type in IR-generation UNREACHABLE executed at /root/llvm-project/clang/lib/CodeGen/CodeGenFunction.cpp:267! #112153

yijan4845 opened this issue Oct 14, 2024 · 1 comment
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clang:codegen IR generation bugs: mangling, exceptions, etc. crash-on-invalid generated by fuzzer regression:16 Regression in 16 release

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@yijan4845
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This testcase is generated by a fuzzer.

Compiler Explorer: https://godbolt.org/z/WYveMhMK3

This invalid code will crash on both Clang Trunk and Clang Assertion Trunk, it seems that this goes back to clang-16:

template<typename T> void g(T t) {
  typename T::X x = x;
}
struct A { template<typename T> struct X { X(T); }; };
void h(A a) { g(a); }

The stack dump and error message are similar to 33335 and 55872.

Stack dump:

undeduced type in IR-generation
UNREACHABLE executed at /root/llvm-project/clang/lib/CodeGen/CodeGenFunction.cpp:267!
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 -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics <source>
1.	<eof> parser at end of file
2.	Per-file LLVM IR generation
3.	<source>:1:27: Generating code for declaration 'g'
 #0 0x0000000003baa6d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3baa6d8)
 #1 0x0000000003ba839c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ba839c)
 #2 0x0000000003af55f8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x000070fecc242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x000070fecc2969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x000070fecc242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x000070fecc2287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x0000000003b00eca (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3b00eca)
 #8 0x0000000003f7ba1a clang::CodeGen::CodeGenFunction::getEvaluationKind(clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f7ba1a)
 #9 0x00000000042e0a18 clang::CodeGen::CodeGenFunction::EmitCallArg(clang::CodeGen::CallArgList&, clang::Expr const*, clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42e0a18)
#10 0x00000000042eb507 clang::CodeGen::CodeGenFunction::EmitCallArgs(clang::CodeGen::CallArgList&, clang::CodeGen::CodeGenFunction::PrototypeWrapper, llvm::iterator_range<clang::Stmt::CastIterator<clang::Expr, clang::Expr const* const, clang::Stmt const* const>>, clang::CodeGen::CodeGenFunction::AbstractCallee, unsigned int, clang::CodeGen::CodeGenFunction::EvaluationOrder) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42eb507)
#11 0x000000000430f63e clang::CodeGen::CodeGenFunction::EmitCXXConstructorCall(clang::CXXConstructorDecl const*, clang::CXXCtorType, bool, bool, clang::CodeGen::AggValueSlot, clang::CXXConstructExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x430f63e)
#12 0x00000000043a93bf clang::CodeGen::CodeGenFunction::EmitCXXConstructExpr(clang::CXXConstructExpr const*, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43a93bf)
#13 0x000000000438d38a (anonymous namespace)::AggExprEmitter::VisitCXXConstructExpr(clang::CXXConstructExpr const*) CGExprAgg.cpp:0:0
#14 0x0000000004399431 (anonymous namespace)::AggExprEmitter::Visit(clang::Expr*) CGExprAgg.cpp:0:0
#15 0x000000000439cd34 (anonymous namespace)::AggExprEmitter::VisitCastExpr(clang::CastExpr*) CGExprAgg.cpp:0:0
#16 0x0000000004399401 (anonymous namespace)::AggExprEmitter::Visit(clang::Expr*) CGExprAgg.cpp:0:0
#17 0x000000000439a090 clang::CodeGen::CodeGenFunction::EmitAggExpr(clang::Expr const*, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x439a090)
#18 0x000000000432c542 clang::CodeGen::CodeGenFunction::EmitExprAsInit(clang::Expr const*, clang::ValueDecl const*, clang::CodeGen::LValue, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x432c542)
#19 0x0000000004338901 clang::CodeGen::CodeGenFunction::EmitAutoVarInit(clang::CodeGen::CodeGenFunction::AutoVarEmission const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4338901)
#20 0x0000000004338ec6 clang::CodeGen::CodeGenFunction::EmitVarDecl(clang::VarDecl const&) (.part.0) CGDecl.cpp:0:0
#21 0x0000000004339116 clang::CodeGen::CodeGenFunction::EmitDecl(clang::Decl const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4339116)
#22 0x0000000003efe587 clang::CodeGen::CodeGenFunction::EmitDeclStmt(clang::DeclStmt const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3efe587)
#23 0x0000000003f15189 clang::CodeGen::CodeGenFunction::EmitSimpleStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f15189)
#24 0x0000000003f0ce35 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f0ce35)
#25 0x0000000003f14ba4 clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f14ba4)
#26 0x0000000003f7d044 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f7d044)
#27 0x0000000003f8f02c clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f8f02c)
#28 0x0000000003ff7bfa clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ff7bfa)
#29 0x0000000003ff28d5 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ff28d5)
#30 0x0000000003ffe94d clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ffe94d)
#31 0x0000000004000a63 clang::CodeGen::CodeGenModule::Release() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4000a63)
#32 0x00000000045047ce (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0
#33 0x0000000004502425 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4502425)
#34 0x000000000664064c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x664064c)
#35 0x0000000004502bd8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4502bd8)
#36 0x00000000047bc4d9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47bc4d9)
#37 0x000000000473b07e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x473b07e)
#38 0x00000000048a204e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48a204e)
#39 0x0000000000cdb81f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcdb81f)
#40 0x0000000000cd352a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#41 0x00000000045468a9 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
#42 0x0000000003af5aa4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3af5aa4)
#43 0x0000000004546e9f 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
#44 0x000000000450c7dd clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x450c7dd)
#45 0x000000000450d8cd 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+++0x450d8cd)
#46 0x00000000045151f5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x45151f5)
#47 0x0000000000cd86ef clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcd86ef)
#48 0x0000000000ba7c44 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xba7c44)
#49 0x000070fecc229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#50 0x000070fecc229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#51 0x0000000000cd2fde _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcd2fde)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
@yijan4845 yijan4845 added clang:codegen IR generation bugs: mangling, exceptions, etc. crash-on-invalid regression:16 Regression in 16 release generated by fuzzer labels Oct 14, 2024
@llvmbot
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llvmbot commented Oct 14, 2024

@llvm/issue-subscribers-clang-codegen

Author: Yihan Yang (yijan4845)

**This testcase is generated by a fuzzer.**

Compiler Explorer: https://godbolt.org/z/WYveMhMK3

This invalid code will crash on both Clang Trunk and Clang Assertion Trunk, it seems that this goes back to clang-16:

template&lt;typename T&gt; void g(T t) {
  typename T::X x = x;
}
struct A { template&lt;typename T&gt; struct X { X(T); }; };
void h(A a) { g(a); }

The stack dump and error message are similar to 33335 and 55872.

Stack dump:

undeduced type in IR-generation
UNREACHABLE executed at /root/llvm-project/clang/lib/CodeGen/CodeGenFunction.cpp:267!
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 -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics &lt;source&gt;
1.	&lt;eof&gt; parser at end of file
2.	Per-file LLVM IR generation
3.	&lt;source&gt;:1:27: Generating code for declaration 'g'
 #<!-- -->0 0x0000000003baa6d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&amp;, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3baa6d8)
 #<!-- -->1 0x0000000003ba839c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ba839c)
 #<!-- -->2 0x0000000003af55f8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #<!-- -->3 0x000070fecc242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #<!-- -->4 0x000070fecc2969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #<!-- -->5 0x000070fecc242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #<!-- -->6 0x000070fecc2287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #<!-- -->7 0x0000000003b00eca (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3b00eca)
 #<!-- -->8 0x0000000003f7ba1a clang::CodeGen::CodeGenFunction::getEvaluationKind(clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f7ba1a)
 #<!-- -->9 0x00000000042e0a18 clang::CodeGen::CodeGenFunction::EmitCallArg(clang::CodeGen::CallArgList&amp;, clang::Expr const*, clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42e0a18)
#<!-- -->10 0x00000000042eb507 clang::CodeGen::CodeGenFunction::EmitCallArgs(clang::CodeGen::CallArgList&amp;, clang::CodeGen::CodeGenFunction::PrototypeWrapper, llvm::iterator_range&lt;clang::Stmt::CastIterator&lt;clang::Expr, clang::Expr const* const, clang::Stmt const* const&gt;&gt;, clang::CodeGen::CodeGenFunction::AbstractCallee, unsigned int, clang::CodeGen::CodeGenFunction::EvaluationOrder) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42eb507)
#<!-- -->11 0x000000000430f63e clang::CodeGen::CodeGenFunction::EmitCXXConstructorCall(clang::CXXConstructorDecl const*, clang::CXXCtorType, bool, bool, clang::CodeGen::AggValueSlot, clang::CXXConstructExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x430f63e)
#<!-- -->12 0x00000000043a93bf clang::CodeGen::CodeGenFunction::EmitCXXConstructExpr(clang::CXXConstructExpr const*, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43a93bf)
#<!-- -->13 0x000000000438d38a (anonymous namespace)::AggExprEmitter::VisitCXXConstructExpr(clang::CXXConstructExpr const*) CGExprAgg.cpp:0:0
#<!-- -->14 0x0000000004399431 (anonymous namespace)::AggExprEmitter::Visit(clang::Expr*) CGExprAgg.cpp:0:0
#<!-- -->15 0x000000000439cd34 (anonymous namespace)::AggExprEmitter::VisitCastExpr(clang::CastExpr*) CGExprAgg.cpp:0:0
#<!-- -->16 0x0000000004399401 (anonymous namespace)::AggExprEmitter::Visit(clang::Expr*) CGExprAgg.cpp:0:0
#<!-- -->17 0x000000000439a090 clang::CodeGen::CodeGenFunction::EmitAggExpr(clang::Expr const*, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x439a090)
#<!-- -->18 0x000000000432c542 clang::CodeGen::CodeGenFunction::EmitExprAsInit(clang::Expr const*, clang::ValueDecl const*, clang::CodeGen::LValue, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x432c542)
#<!-- -->19 0x0000000004338901 clang::CodeGen::CodeGenFunction::EmitAutoVarInit(clang::CodeGen::CodeGenFunction::AutoVarEmission const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4338901)
#<!-- -->20 0x0000000004338ec6 clang::CodeGen::CodeGenFunction::EmitVarDecl(clang::VarDecl const&amp;) (.part.0) CGDecl.cpp:0:0
#<!-- -->21 0x0000000004339116 clang::CodeGen::CodeGenFunction::EmitDecl(clang::Decl const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4339116)
#<!-- -->22 0x0000000003efe587 clang::CodeGen::CodeGenFunction::EmitDeclStmt(clang::DeclStmt const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3efe587)
#<!-- -->23 0x0000000003f15189 clang::CodeGen::CodeGenFunction::EmitSimpleStmt(clang::Stmt const*, llvm::ArrayRef&lt;clang::Attr const*&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f15189)
#<!-- -->24 0x0000000003f0ce35 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef&lt;clang::Attr const*&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f0ce35)
#<!-- -->25 0x0000000003f14ba4 clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&amp;, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f14ba4)
#<!-- -->26 0x0000000003f7d044 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f7d044)
#<!-- -->27 0x0000000003f8f02c clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f8f02c)
#<!-- -->28 0x0000000003ff7bfa clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ff7bfa)
#<!-- -->29 0x0000000003ff28d5 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ff28d5)
#<!-- -->30 0x0000000003ffe94d clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ffe94d)
#<!-- -->31 0x0000000004000a63 clang::CodeGen::CodeGenModule::Release() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4000a63)
#<!-- -->32 0x00000000045047ce (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&amp;) ModuleBuilder.cpp:0:0
#<!-- -->33 0x0000000004502425 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4502425)
#<!-- -->34 0x000000000664064c clang::ParseAST(clang::Sema&amp;, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x664064c)
#<!-- -->35 0x0000000004502bd8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4502bd8)
#<!-- -->36 0x00000000047bc4d9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47bc4d9)
#<!-- -->37 0x000000000473b07e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x473b07e)
#<!-- -->38 0x00000000048a204e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48a204e)
#<!-- -->39 0x0000000000cdb81f cc1_main(llvm::ArrayRef&lt;char const*&gt;, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcdb81f)
#<!-- -->40 0x0000000000cd352a ExecuteCC1Tool(llvm::SmallVectorImpl&lt;char const*&gt;&amp;, llvm::ToolContext const&amp;) driver.cpp:0:0
#<!-- -->41 0x00000000045468a9 void llvm::function_ref&lt;void ()&gt;::callback_fn&lt;clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const::'lambda'()&gt;(long) Job.cpp:0:0
#<!-- -->42 0x0000000003af5aa4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref&lt;void ()&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3af5aa4)
#<!-- -->43 0x0000000004546e9f clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const (.part.0) Job.cpp:0:0
#<!-- -->44 0x000000000450c7dd clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&amp;, clang::driver::Command const*&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x450c7dd)
#<!-- -->45 0x000000000450d8cd clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x450d8cd)
#<!-- -->46 0x00000000045151f5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x45151f5)
#<!-- -->47 0x0000000000cd86ef clang_main(int, char**, llvm::ToolContext const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcd86ef)
#<!-- -->48 0x0000000000ba7c44 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xba7c44)
#<!-- -->49 0x000070fecc229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#<!-- -->50 0x000070fecc229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#<!-- -->51 0x0000000000cd2fde _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcd2fde)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134

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