| Issue |
173941
|
| Summary |
[clang][bytecode] Assertion `R' failed where C++11 extension is used with -std=c++03
|
| Labels |
crash,
clang:bytecode
|
| Assignees |
|
| Reporter |
k-arrows
|
Reproducer:
https://godbolt.org/z/PnnfYqY47
```cpp
struct S {
int arr[1024 * 1024 * 1024];
s = {1, {2}};
};
S s[2] = {};
```
Backtrace:
```console
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ByteCode/Compiler.cpp:4389: bool clang::interp::Compiler<Emitter>::visitZeroRecordInitializer(const clang::interp::Record*, const clang::Expr*) [with Emitter = clang::interp::EvalEmitter]: Assertion `R' failed.
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 -std=c++03 -fexperimental-new-constant-interpreter <source>
1. <source>:6:12: current parser token ';'
#0 0x0000000004301458 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4301458)
#1 0x00000000042fe884 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42fe884)
#2 0x0000000004243628 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007aa63cc42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007aa63cc969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x00007aa63cc42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007aa63cc287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x00007aa63cc2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x00007aa63cc39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000008224b0c clang::interp::Compiler<clang::interp::EvalEmitter>::visitZeroRecordInitializer(clang::interp::Record const*, clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x8224b0c)
#10 0x000000000824f564 clang::interp::Compiler<clang::interp::EvalEmitter>::VisitCXXConstructExpr(clang::CXXConstructExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x824f564)
#11 0x000000000824e342 clang::interp::Compiler<clang::interp::EvalEmitter>::visitInitializer(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x824e342)
#12 0x000000000825368a clang::interp::Compiler<clang::interp::EvalEmitter>::visitArrayElemInit(unsigned int, clang::Expr const*, clang::interp::OptPrimType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x825368a)
#13 0x0000000008263136 clang::interp::Compiler<clang::interp::EvalEmitter>::visitInitList(llvm::ArrayRef<clang::Expr const*>, clang::Expr const*, clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x8263136)
#14 0x000000000824e342 clang::interp::Compiler<clang::interp::EvalEmitter>::visitInitializer(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x824e342)
#15 0x000000000825045b clang::interp::Compiler<clang::interp::EvalEmitter>::visitVarDecl(clang::VarDecl const*, clang::Expr const*, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x825045b)
#16 0x000000000825058d clang::interp::Compiler<clang::interp::EvalEmitter>::visitDeclAndReturn(clang::VarDecl const*, clang::Expr const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x825058d)
#17 0x0000000007ddee8d clang::interp::EvalEmitter::interpretDecl(clang::VarDecl const*, clang::Expr const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7ddee8d)
#18 0x0000000007dbdd76 clang::interp::Context::evaluateAsInitializer(clang::interp::State&, clang::VarDecl const*, clang::Expr const*, clang::APValue&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dbdd76)
#19 0x0000000007da6c66 clang::Expr::EvaluateAsInitializer(clang::APValue&, clang::ASTContext const&, clang::VarDecl const*, llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7da6c66)
#20 0x0000000007b8b732 clang::VarDecl::evaluateValueImpl(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7b8b732)
#21 0x0000000007b8bae1 clang::VarDecl::checkForConstantInitialization(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7b8bae1)
#22 0x0000000006e13bd1 clang::Sema::CheckCompleteVariableDeclaration(clang::VarDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e13bd1)
#23 0x0000000006e1b096 clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e1b096)
#24 0x0000000006a69441 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a69441)
#25 0x0000000006a7669a 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+++0x6a7669a)
#26 0x0000000006a33d4b clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a33d4b)
#27 0x0000000006a3453f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a3453f)
#28 0x0000000006a3c36a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a3c36a)
#29 0x0000000006a3d305 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a3d305)
#30 0x0000000006a1e38a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a1e38a)
#31 0x0000000004c62788 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c62788)
#32 0x0000000004f58e05 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4f58e05)
#33 0x0000000004ed909e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ed909e)
#34 0x000000000505318d clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x505318d)
#35 0x0000000000de63ec cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xde63ec)
#36 0x0000000000ddce3a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#37 0x0000000000ddcfbd 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
#38 0x0000000004cd4e59 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
#39 0x0000000004243ac4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4243ac4)
#40 0x0000000004cd546f 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
#41 0x0000000004c95f52 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c95f52)
#42 0x0000000004c96efe 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+++0x4c96efe)
#43 0x0000000004c9e355 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c9e355)
#44 0x0000000000de27e1 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xde27e1)
#45 0x0000000000c8d114 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc8d114)
#46 0x00007aa63cc29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#47 0x00007aa63cc29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#48 0x0000000000ddc8d5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xddc8d5)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
Crash goes back to clang-21.1.0:
https://godbolt.org/z/sbsxjWoxb
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