Clang crash: UNREACHABLE executed in EmitDeclRefLValue with "DeclRefExpr for Decl not entered in LocalDeclMap"

[AbyssStaror]

Link for quick verification: https://godbolt.org/z/G9fqzzc5h

#include <stdio.h>

void test_lambda_in_defaults(int x = []{ return 5; }(),
                             int y = [x] { return x * 2; }()
                             ) {}

int main() {
    test_lambda_in_defaults();  
    return 0;
}

Go back to clang 19.1.0 (assertions)

Stack dump

DeclRefExpr for Decl not entered in LocalDeclMap?
UNREACHABLE executed at /root/llvm-project/llvm/tools/clang/lib/CodeGen/CGExpr.cpp:3510!
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++ -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>:4:38: Generating code for declaration '(anonymous class)::operator()'
 #0 0x000000000429ea28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x429ea28)
 #1 0x000000000429b8d4 llvm::sys::RunSignalHandlers() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x429b8d4)
 #2 0x000000000429be54 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x429be54)
 #3 0x00000000041e0b98 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #4 0x00007c1c27842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #5 0x00007c1c278969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #6 0x00007c1c27842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #7 0x00007c1c278287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #8 0x00000000041eb7ca (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41eb7ca)
 #9 0x00000000045fd208 clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(clang::DeclRefExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x45fd208)
#10 0x000000000461976e clang::CodeGen::CodeGenFunction::EmitLValueHelper(clang::Expr const*, clang::CodeGen::KnownNonNull_t) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x461976e)
#11 0x000000000461a1b7 void llvm::function_ref<void ()>::callback_fn<clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr const*, clang::CodeGen::KnownNonNull_t)::'lambda'()>(long) CGExpr.cpp:0:0
#12 0x0000000008442351 clang::StackExhaustionHandler::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x8442351)
#13 0x00000000045e2233 clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr const*, clang::CodeGen::KnownNonNull_t) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x45e2233)
#14 0x0000000004607056 clang::CodeGen::CodeGenFunction::EmitCheckedLValue(clang::Expr const*, clang::CodeGen::CodeGenFunction::TypeCheckKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4607056)
#15 0x0000000004681df0 (anonymous namespace)::ScalarExprEmitter::EmitLoadOfLValue(clang::Expr const*) CGExprScalar.cpp:0:0
#16 0x000000000467b488 clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#17 0x000000000467b77b (anonymous namespace)::ScalarExprEmitter::Visit(clang::Expr*) CGExprScalar.cpp:0:0
#18 0x0000000004682343 (anonymous namespace)::ScalarExprEmitter::VisitCastExpr(clang::CastExpr*) CGExprScalar.cpp:0:0
#19 0x0000000004679586 clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#20 0x000000000468981d clang::CodeGen::CodeGenFunction::EmitPromotedScalarExpr(clang::Expr const*, clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x468981d)
#21 0x000000000468a45e (anonymous namespace)::ScalarExprEmitter::EmitBinOps(clang::BinaryOperator const*, clang::QualType) CGExprScalar.cpp:0:0
#22 0x000000000467a7a9 clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#23 0x000000000467f07c clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x467f07c)
#24 0x000000000479ad34 clang::CodeGen::CodeGenFunction::EmitReturnStmt(clang::ReturnStmt const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x479ad34)
#25 0x00000000047a40dd clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47a40dd)
#26 0x00000000047ac3fb clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47ac3fb)
#27 0x000000000481417e clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x481417e)
#28 0x00000000048279d4 clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48279d4)
#29 0x0000000004892f20 clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4892f20)
#30 0x000000000488db94 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x488db94)
#31 0x000000000489adac clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x489adac)
#32 0x000000000489d453 clang::CodeGen::CodeGenModule::Release() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x489d453)
#33 0x0000000004bf847e (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0
#34 0x0000000004bf5e95 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4bf5e95)
#35 0x000000000698304c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x698304c)
#36 0x0000000004bf6678 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4bf6678)
#37 0x0000000004eeb2e5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4eeb2e5)
#38 0x0000000004e6b59e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e6b59e)
#39 0x0000000004fe538d clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4fe538d)
#40 0x0000000000dd9ee2 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd9ee2)
#41 0x0000000000dd090a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#42 0x0000000000dd0a8d int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#43 0x0000000004c68359 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
#44 0x00000000041e1034 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41e1034)
#45 0x0000000004c68986 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
#46 0x0000000004c2a002 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c2a002)
#47 0x0000000004c2afae 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+++0x4c2afae)
#48 0x0000000004c32285 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c32285)
#49 0x0000000000dd62b1 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd62b1)
#50 0x0000000000c81394 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc81394)
#51 0x00007c1c27829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#52 0x00007c1c27829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#53 0x0000000000dd03a5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd03a5)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134

[llvmbot]

@llvm/issue-subscribers-clang-codegen

Author: None (AbyssStaror)

Details

### Link for quick verification: https://godbolt.org/z/G9fqzzc5h ```c #include <stdio.h>

void test_lambda_in_defaults(int x = []{ return 5; }(),
int y = [x] { return x * 2; }()
) {}

int main() {
test_lambda_in_defaults();
return 0;
}

Go back to `clang 19.1.0 (assertions)`
## Stack dump

DeclRefExpr for Decl not entered in LocalDeclMap?
UNREACHABLE executed at /root/llvm-project/llvm/tools/clang/lib/CodeGen/CGExpr.cpp:3510!
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++ -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>:4:38: Generating code for declaration '(anonymous class)::operator()'
   #0 0x000000000429ea28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x429ea28)
   Fixing Rust build #1 0x000000000429b8d4 llvm::sys::RunSignalHandlers() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x429b8d4)
   Fix a typo #2 0x000000000429be54 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x429be54)
   Fix a compilation error on gcc8 #3 0x00000000041e0b98 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
   Fix a compilation error on gcc8 #4 0x00007c1c27842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
   Seedarg/member/wip #5 0x00007c1c278969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
   Add check for matching HeaderFilter before emitting Diagnostic #6 0x00007c1c27842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
   Random engine swap #7 0x00007c1c278287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
   Update rwlock init #8 0x00000000041eb7ca (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41eb7ca)
   Next80 merge test #9 0x00000000045fd208 clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(clang::DeclRefExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x45fd208)
   Fix typo: 'soruce' -> 'source' #10 0x000000000461976e clang::CodeGen::CodeGenFunction::EmitLValueHelper(clang::Expr const*, clang::CodeGen::KnownNonNull_t) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x461976e)
   fix for gcc 8 #11 0x000000000461a1b7 void llvm::function_ref<void ()>::callback_fn<clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr const*, clang::CodeGen::KnownNonNull_t)::'lambda'()>(long) CGExpr.cpp:0:0
   Fix "Allman" style example #12 0x0000000008442351 clang::StackExhaustionHandler::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x8442351)
   Defer diag #13 0x00000000045e2233 clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr const*, clang::CodeGen::KnownNonNull_t) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x45e2233)
   WIP lifetime categories #14 0x0000000004607056 clang::CodeGen::CodeGenFunction::EmitCheckedLValue(clang::Expr const*, clang::CodeGen::CodeGenFunction::TypeCheckKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4607056)
   Fix ClangOpenCLBuiltinsImpl target not found #15 0x0000000004681df0 (anonymous namespace)::ScalarExprEmitter::EmitLoadOfLValue(clang::Expr const*) CGExprScalar.cpp:0:0
   __unique_stable_name implementation. #16 0x000000000467b488 clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
   Lockdown test #17 0x000000000467b77b (anonymous namespace)::ScalarExprEmitter::Visit(clang::Expr*) CGExprScalar.cpp:0:0
   Lockdown test #18 0x0000000004682343 (anonymous namespace)::ScalarExprEmitter::VisitCastExpr(clang::CastExpr*) CGExprScalar.cpp:0:0
   Test commit to check lockdown app #19 0x0000000004679586 clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
   Construct path using a locale #20 0x000000000468981d clang::CodeGen::CodeGenFunction::EmitPromotedScalarExpr(clang::Expr const*, clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x468981d)
   moved upfront the skip branch insertion code for correctness. #21 0x000000000468a45e (anonymous namespace)::ScalarExprEmitter::EmitBinOps(clang::BinaryOperator const*, clang::QualType) CGExprScalar.cpp:0:0
   Update Applyreplacements.h #22 0x000000000467a7a9 clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
   Fix issue with empty LIB_NAMES #23 0x000000000467f07c clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x467f07c)
   Vardhan/issue 123 #24 0x000000000479ad34 clang::CodeGen::CodeGenFunction::EmitReturnStmt(clang::ReturnStmt const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x479ad34)
   Add bugprone-argument-comment option: IgnoreSingleArgument. #25 0x00000000047a40dd clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47a40dd)
   Cherry-picked from commit 628e418df1a009e0d073545cbef3604350e7b808 #26 0x00000000047ac3fb clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47ac3fb)
   Templateissue #27 0x000000000481417e clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x481417e)
   Dfa #28 0x00000000048279d4 clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48279d4)
   LLVM_COMPLETE_INSTALLATION #29 0x0000000004892f20 clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4892f20)
   Vis debug #30 0x000000000488db94 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x488db94)
   [analyzer][NFC][docs] Add CodeChecker to the command line tools #31 0x000000000489adac clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x489adac)
   Update README.md #32 0x000000000489d453 clang::CodeGen::CodeGenModule::Release() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x489d453)
   Change the tblgen install template to allow mlir-tblgen to install. #33 0x0000000004bf847e (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0
   Test issue #34 0x0000000004bf5e95 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4bf5e95)
   Test issue #2 #35 0x000000000698304c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x698304c)
   Feature/compiler extension #36 0x0000000004bf6678 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4bf6678)
   Broken links in Kaleidoscope tutorial #37 0x0000000004eeb2e5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4eeb2e5)
   llvm 9.0.0 - release pages on github? #38 0x0000000004e6b59e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e6b59e)
   building debian packages from source fails on master #39 0x0000000004fe538d clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4fe538d)
   Use kevent queue for waiting for file unlocking #40 0x0000000000dd9ee2 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd9ee2)
   typo in clang static analyzer GenericTaintChecker.cpp #41 0x0000000000dd090a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
   Stack clash - mir attempt #42 0x0000000000dd0a8d int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
   #22 #43 0x0000000004c68359 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
   access-ui #44 0x00000000041e1034 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41e1034)
   Can i use clang/llvm version 9 for RiscV to cross-compile CXX programs and simulate using Spike? If yes, can you please provide the steps.  #45 0x0000000004c68986 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
   MoveChecker causes false positives with no way to fix #46 0x0000000004c2a002 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c2a002)
   【Feature Request】Please consider to provide essential head files for Windows #47 0x0000000004c2afae 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+++0x4c2afae)
   clang-format does not transfer brace to the new line for union, if flag Allman is set #48 0x0000000004c32285 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c32285)
   Unable to install clangd-8 and clang-tidy-8 at the same time from LLVM Ubuntu Xenial repositories #49 0x0000000000dd62b1 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd62b1)
   Feature/system override #50 0x0000000000c81394 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc81394)
   [lld] .rela.dyn will be removed if it has no entries before ThunkCreator::createThunks #51 0x00007c1c27829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
   [lld] For --defsym from=to, retain to only if from is also retained, rather than retain to unconditionally #52 0x00007c1c27829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
   Add V8/WebAssembly debugging support to LLDB #53 0x0000000000dd03a5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd03a5)
   clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
   Compiler returned: 134

</details>