[clang][crash-on-valid] Crash in frontend with `std::source_location::current().column()` in deduction guide

[localspook]

The following code crashes Clang, compiling with -std=c++20 -emit-llvm -Xclang -disable-llvm-passes:

#include <source_location>

template <int>
struct S { S(const char *); };

template <int M>
S(const char(&)[M]) -> S<std::source_location::current().column()>;

void f() {
    S{"If you remove this line, no crash happens."};
}

Link: https://godbolt.org/z/jPbb5Kr1P.
It does not crash on versions 17.1.0 and earlier.
I don't believe this is related to #67134, because this has a completely different backtrace.

It also gives an error:

<source>:10:5: error: cannot compile this scalar expression yet
   10 |     S{"If you remove this line, no crash happens."};
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Backtrace:

Stack dump:
0.	Program arguments: /opt/compiler-explorer/clang-trunk/bin/clang++ -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++20 -emit-llvm -Xclang -disable-llvm-passes <source>
1.	<eof> parser at end of file
2.	<source>:9:6: LLVM IR generation of declaration 'f'
3.	<source>:9:6: Generating code for declaration 'f'
 #0 0x00000000036774c8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x36774c8)
 #1 0x0000000003675614 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3675614)
 #2 0x00000000035bfc48 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007fbcd4242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x0000000002f3a418 llvm::UndefValue::get(llvm::Type*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x2f3a418)
 #5 0x0000000003db06e6 (anonymous namespace)::ScalarExprEmitter::Visit(clang::Expr*) CGExprScalar.cpp:0:0
 #6 0x0000000003db2a53 clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3db2a53)
 #7 0x0000000003d53f9e clang::CodeGen::CodeGenFunction::EmitAnyExpr(clang::Expr const*, clang::CodeGen::AggValueSlot, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3d53f9e)
 #8 0x0000000003d6e83b clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(clang::Expr const*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3d6e83b)
 #9 0x000000000397f0be clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x397f0be)
#10 0x0000000003985319 clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3985319)
#11 0x00000000039e2fc4 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x39e2fc4)
#12 0x00000000039ef422 clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x39ef422)
#13 0x0000000003a463bb clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3a463bb)
#14 0x0000000003a42105 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3a42105)
#15 0x0000000003a42db0 clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3a42db0)
#16 0x0000000003a4ae67 clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) (.part.0) CodeGenModule.cpp:0:0
#17 0x0000000003ecf3d6 (anonymous namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef) ModuleBuilder.cpp:0:0
#18 0x0000000003ec04f9 clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3ec04f9)
#19 0x0000000005d7496c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x5d7496c)
#20 0x0000000003ecce75 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3ecce75)
#21 0x0000000004162361 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-trunk/bin/clang+++0x4162361)
#22 0x00000000040e831b clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x40e831b)
#23 0x00000000042449a3 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x42449a3)
#24 0x0000000000c32d06 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xc32d06)
#25 0x0000000000c2bb8d ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#26 0x0000000003f144f9 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
#27 0x00000000035c0073 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x35c0073)
#28 0x0000000003f14719 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
#29 0x0000000003edc457 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3edc457)
#30 0x0000000003edce0d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3edce0d)
#31 0x0000000003ee6b6c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3ee6b6c)
#32 0x0000000000c30121 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xc30121)
#33 0x0000000000b26194 main (/opt/compiler-explorer/clang-trunk/bin/clang+++0xb26194)
#34 0x00007fbcd4229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#35 0x00007fbcd4229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#36 0x0000000000c2b36e _start (/opt/compiler-explorer/clang-trunk/bin/clang+++0xc2b36e)

[llvmbot]

@llvm/issue-subscribers-clang-codegen

Author: Victor Chernyakin (LocalSpook)

The following code crashes Clang, compiling with `-std=c++20 -emit-llvm -Xclang -disable-llvm-passes`:

#include <source_location>

template <int>
struct S { S(const char *); };

template <int M>
S(const char(&)[M]) -> S<std::source_location::current().column()>;

void f() {
    S{"If you remove this line, no crash happens."};
}

Link: https://godbolt.org/z/jPbb5Kr1P.
It does not crash on versions 17.1.0 and earlier.
I don't believe this is related to #67134, because this has a completely different backtrace.

It also gives an error:

<source>:10:5: error: cannot compile this scalar expression yet
   10 |     S{"If you remove this line, no crash happens."};
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Backtrace:

Stack dump:
0.	Program arguments: /opt/compiler-explorer/clang-trunk/bin/clang++ -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++20 -emit-llvm -Xclang -disable-llvm-passes <source>
1.	<eof> parser at end of file
2.	<source>:9:6: LLVM IR generation of declaration 'f'
3.	<source>:9:6: Generating code for declaration 'f'
 #<!-- -->0 0x00000000036774c8 llvm::sys::PrintStackTrace(llvm::raw_ostream&amp;, int) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x36774c8)
 #<!-- -->1 0x0000000003675614 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3675614)
 #<!-- -->2 0x00000000035bfc48 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #<!-- -->3 0x00007fbcd4242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #<!-- -->4 0x0000000002f3a418 llvm::UndefValue::get(llvm::Type*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x2f3a418)
 #<!-- -->5 0x0000000003db06e6 (anonymous namespace)::ScalarExprEmitter::Visit(clang::Expr*) CGExprScalar.cpp:0:0
 #<!-- -->6 0x0000000003db2a53 clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3db2a53)
 #<!-- -->7 0x0000000003d53f9e clang::CodeGen::CodeGenFunction::EmitAnyExpr(clang::Expr const*, clang::CodeGen::AggValueSlot, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3d53f9e)
 #<!-- -->8 0x0000000003d6e83b clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(clang::Expr const*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3d6e83b)
 #<!-- -->9 0x000000000397f0be clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef&lt;clang::Attr const*&gt;) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x397f0be)
#<!-- -->10 0x0000000003985319 clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&amp;, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3985319)
#<!-- -->11 0x00000000039e2fc4 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x39e2fc4)
#<!-- -->12 0x00000000039ef422 clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&amp;) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x39ef422)
#<!-- -->13 0x0000000003a463bb clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3a463bb)
#<!-- -->14 0x0000000003a42105 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3a42105)
#<!-- -->15 0x0000000003a42db0 clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3a42db0)
#<!-- -->16 0x0000000003a4ae67 clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) (.part.0) CodeGenModule.cpp:0:0
#<!-- -->17 0x0000000003ecf3d6 (anonymous namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef) ModuleBuilder.cpp:0:0
#<!-- -->18 0x0000000003ec04f9 clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3ec04f9)
#<!-- -->19 0x0000000005d7496c clang::ParseAST(clang::Sema&amp;, bool, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x5d7496c)
#<!-- -->20 0x0000000003ecce75 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3ecce75)
#<!-- -->21 0x0000000004162361 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-trunk/bin/clang+++0x4162361)
#<!-- -->22 0x00000000040e831b clang::CompilerInstance::ExecuteAction(clang::FrontendAction&amp;) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x40e831b)
#<!-- -->23 0x00000000042449a3 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x42449a3)
#<!-- -->24 0x0000000000c32d06 cc1_main(llvm::ArrayRef&lt;char const*&gt;, char const*, void*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xc32d06)
#<!-- -->25 0x0000000000c2bb8d ExecuteCC1Tool(llvm::SmallVectorImpl&lt;char const*&gt;&amp;, llvm::ToolContext const&amp;) driver.cpp:0:0
#<!-- -->26 0x0000000003f144f9 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
#<!-- -->27 0x00000000035c0073 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref&lt;void ()&gt;) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x35c0073)
#<!-- -->28 0x0000000003f14719 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
#<!-- -->29 0x0000000003edc457 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&amp;, clang::driver::Command const*&amp;, bool) const (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3edc457)
#<!-- -->30 0x0000000003edce0d 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-trunk/bin/clang+++0x3edce0d)
#<!-- -->31 0x0000000003ee6b6c 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-trunk/bin/clang+++0x3ee6b6c)
#<!-- -->32 0x0000000000c30121 clang_main(int, char**, llvm::ToolContext const&amp;) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xc30121)
#<!-- -->33 0x0000000000b26194 main (/opt/compiler-explorer/clang-trunk/bin/clang+++0xb26194)
#<!-- -->34 0x00007fbcd4229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#<!-- -->35 0x00007fbcd4229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#<!-- -->36 0x0000000000c2b36e _start (/opt/compiler-explorer/clang-trunk/bin/clang+++0xc2b36e)

[shafik]

With assertions build: https://godbolt.org/z/xTMfxe4Yx

Assertion:

clang++: /root/llvm-project/clang/lib/AST/ASTContext.cpp:5891:
clang::QualType clang::ASTContext::getDeducedTemplateSpecializationType(clang::TemplateName, clang::QualType, bool) const:
Assertion `ID == TempID && "ID does not match"' 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 -mllvm --x86-asm-syntax=intel -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++20 -emit-llvm -Xclang -disable-llvm-passes <source>
1.	<source>:10:52: current parser token ';'
2.	<source>:9:10: parsing function body 'f'
3.	<source>:9:10: in compound statement ('{}')
 #0 0x0000000003903418 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3903418)
 #1 0x00000000039010fc llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x39010fc)
 #2 0x0000000003848c18 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007f5f2f242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007f5f2f2969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x00007f5f2f242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x00007f5f2f2287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x00007f5f2f22871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x00007f5f2f239e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x00000000071356ca clang::ASTContext::getDeducedTemplateSpecializationType(clang::TemplateName, clang::QualType, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x71356ca)
#10 0x0000000006c9c7e1 clang::TreeTransform<(anonymous namespace)::SubstituteDeducedTypeTransform>::TransformType(clang::TypeLocBuilder&, clang::TypeLoc) SemaTemplateDeduction.cpp:0:0
#11 0x0000000006cb1265 clang::TreeTransform<(anonymous namespace)::SubstituteDeducedTypeTransform>::TransformElaboratedType(clang::TypeLocBuilder&, clang::ElaboratedTypeLoc) SemaTemplateDeduction.cpp:0:0
#12 0x0000000006c9bb93 clang::TreeTransform<(anonymous namespace)::SubstituteDeducedTypeTransform>::TransformType(clang::TypeLocBuilder&, clang::TypeLoc) SemaTemplateDeduction.cpp:0:0
#13 0x0000000006c9d592 clang::TreeTransform<(anonymous namespace)::SubstituteDeducedTypeTransform>::TransformType(clang::TypeSourceInfo*) SemaTemplateDeduction.cpp:0:0
#14 0x0000000006ca29b8 clang::Sema::SubstAutoType(clang::QualType, clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6ca29b8)
#15 0x00000000069213e4 clang::Sema::DeduceTemplateSpecializationFromInitializer(clang::TypeSourceInfo*, clang::InitializedEntity const&, clang::InitializationKind const&, llvm::MutableArrayRef<clang::Expr*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69213e4)
#16 0x000000000682468d clang::Sema::BuildCXXTypeConstructExpr(clang::TypeSourceInfo*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x682468d)
#17 0x00000000068b221d clang::Sema::ActOnCXXTypeConstructExpr(clang::OpaquePtr<clang::QualType>, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x68b221d)
#18 0x000000000621bb96 clang::Parser::ParseCXXTypeConstructExpression(clang::DeclSpec const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x621bb96)
#19 0x00000000061feb95 clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61feb95)
#20 0x00000000062007aa clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, clang::Parser::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62007aa)
#21 0x0000000006200949 clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6200949)
#22 0x00000000062052b9 clang::Parser::ParseExpression(clang::Parser::TypeCastState) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62052b9)
#23 0x0000000006280c29 clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6280c29)
#24 0x0000000006277477 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+++0x6277477)
#25 0x0000000006278317 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6278317)
#26 0x0000000006279221 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6279221)
#27 0x000000000627ab3a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x627ab3a)
#28 0x0000000006196b61 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6196b61)
#29 0x00000000061cd6cc clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61cd6cc)
#30 0x000000000618ab4e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x618ab4e)
#31 0x000000000618b329 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x618b329)
#32 0x0000000006192766 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6192766)
#33 0x000000000619361d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x619361d)
#34 0x0000000006186332 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6186332)
#35 0x000000000419c788 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x419c788)
#36 0x0000000004418e59 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4418e59)
#37 0x00000000043a279e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43a279e)
#38 0x00000000044fbb3e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x44fbb3e)
#39 0x0000000000c27866 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc27866)
#40 0x0000000000c1f5ca ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#41 0x00000000041ddf29 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 0x00000000038490c4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x38490c4)
#43 0x00000000041de51f 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 0x00000000041a6015 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41a6015)
#45 0x00000000041a6a7d 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+++0x41a6a7d)
#46 0x00000000041ae9c5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41ae9c5)
#47 0x0000000000c24d4d clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc24d4d)
#48 0x0000000000b19f14 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xb19f14)
#49 0x00007f5f2f229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#50 0x00007f5f2f229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#51 0x0000000000c1f08e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc1f08e)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134