[clang][bytecode] Assertion `asBlockPointer().Base <= asBlockPointer().Pointee->getSize()' failed. #152901
Description
Reproducer:
https://godbolt.org/z/991esxKvE
struct {
int &&a;
int b{a};
} c[] { { 0 } };Backtrace:
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ByteCode/Pointer.h:812: clang::interp::InlineDescriptor* clang::interp::Pointer::getInlineDesc() const: Assertion `asBlockPointer().Base <= asBlockPointer().Pointee->getSize()' 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++ -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 -fexperimental-new-constant-interpreter <source>
1. <source>:4:16: current parser token ';'
#0 0x000000000400b2d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x400b2d8)
#1 0x0000000004008704 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4008704)
#2 0x0000000003f4d048 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007df1d5c42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007df1d5c969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x00007df1d5c42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007df1d5c287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x00007df1d5c2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x00007df1d5c39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000007992fcb clang::interp::Pointer::getInlineDesc() const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7992fcb)
#10 0x0000000007adda45 clang::interp::Pointer::getFieldDesc() const (.part.0) Interp.cpp:0:0
#11 0x0000000007ae2784 clang::interp::CheckRange(clang::interp::InterpState&, clang::interp::CodePtr, clang::interp::Pointer const&, clang::AccessKinds) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7ae2784)
#12 0x0000000007b39e61 clang::interp::CheckLoad(clang::interp::InterpState&, clang::interp::CodePtr, clang::interp::Pointer const&, clang::AccessKinds) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7b39e61)
#13 0x0000000007a10d89 bool clang::interp::GetFieldPop<(clang::interp::PrimType)13, clang::interp::Pointer>(clang::interp::InterpState&, clang::interp::CodePtr, unsigned int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7a10d89)
#14 0x0000000007e0ccf1 clang::interp::Compiler<clang::interp::EvalEmitter>::VisitMemberExpr(clang::MemberExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e0ccf1)
#15 0x0000000007e07170 clang::interp::Compiler<clang::interp::EvalEmitter>::visit(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e07170)
#16 0x0000000007e08875 clang::interp::Compiler<clang::interp::EvalEmitter>::VisitCastExpr(clang::CastExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e08875)
#17 0x0000000007e0e3a0 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+++0x7e0e3a0)
#18 0x0000000007e0ac07 clang::interp::Compiler<clang::interp::EvalEmitter>::VisitCXXDefaultInitExpr(clang::CXXDefaultInitExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e0ac07)
#19 0x0000000007e07170 clang::interp::Compiler<clang::interp::EvalEmitter>::visit(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e07170)
#20 0x0000000007dcef77 clang::interp::Compiler<clang::interp::EvalEmitter>::visitInitList(llvm::ArrayRef<clang::Expr const*>, clang::Expr const*, clang::Expr const*)::'lambda'(clang::interp::Record::Field const*, clang::Expr const*, clang::interp::PrimType, bool)::operator()(clang::interp::Record::Field const*, clang::Expr const*, clang::interp::PrimType, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dcef77)
#21 0x0000000007e0e8d7 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+++0x7e0e8d7)
#22 0x0000000007dfb03d clang::interp::Compiler<clang::interp::EvalEmitter>::visitInitializer(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dfb03d)
#23 0x0000000007dffe5f clang::interp::Compiler<clang::interp::EvalEmitter>::visitArrayElemInit(unsigned int, clang::Expr const*, clang::interp::OptPrimType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dffe5f)
#24 0x0000000007e0e7b3 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+++0x7e0e7b3)
#25 0x0000000007e0d035 clang::interp::Compiler<clang::interp::EvalEmitter>::VisitExprWithCleanups(clang::ExprWithCleanups const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e0d035)
#26 0x0000000007dfb03d clang::interp::Compiler<clang::interp::EvalEmitter>::visitInitializer(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dfb03d)
#27 0x0000000007dfc5ba clang::interp::Compiler<clang::interp::EvalEmitter>::visitVarDecl(clang::VarDecl const*, bool, bool)::'lambda0'(unsigned int)::operator()(unsigned int) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dfc5ba)
#28 0x0000000007dfcaea clang::interp::Compiler<clang::interp::EvalEmitter>::visitVarDecl(clang::VarDecl const*, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dfcaea)
#29 0x0000000007dfcf44 clang::interp::Compiler<clang::interp::EvalEmitter>::visitDeclAndReturn(clang::VarDecl const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dfcf44)
#30 0x00000000079a60a7 clang::interp::EvalEmitter::interpretDecl(clang::VarDecl const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x79a60a7)
#31 0x0000000007987f2d clang::interp::Context::evaluateAsInitializer(clang::interp::State&, clang::VarDecl const*, clang::APValue&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7987f2d)
#32 0x0000000007960913 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+++0x7960913)
#33 0x0000000007776db2 clang::VarDecl::evaluateValueImpl(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7776db2)
#34 0x0000000007777161 clang::VarDecl::checkForConstantInitialization(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7777161)
#35 0x0000000006a779ab clang::Sema::CheckCompleteVariableDeclaration(clang::VarDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a779ab)
#36 0x0000000006a7f08b clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a7f08b)
#37 0x00000000066e39f4 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66e39f4)
#38 0x00000000066f29a9 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+++0x66f29a9)
#39 0x00000000066b07ee clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b07ee)
#40 0x00000000066b0f8f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b0f8f)
#41 0x00000000066b8763 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b8763)
#42 0x00000000066b9675 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b9675)
#43 0x00000000066b9b30 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b9b30)
#44 0x00000000066ab843 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66ab843)
#45 0x00000000049b0d28 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49b0d28)
#46 0x0000000004ca5115 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca5115)
#47 0x0000000004c2144e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c2144e)
#48 0x0000000004d96861 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d96861)
#49 0x0000000000daf00f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdaf00f)
#50 0x0000000000da5cba ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#51 0x0000000004a18669 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
#52 0x0000000003f4d4e4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f4d4e4)
#53 0x0000000004a18c7f 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
#54 0x00000000049daf1d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49daf1d)
#55 0x00000000049dbfae 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+++0x49dbfae)
#56 0x00000000049e39f5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49e39f5)
#57 0x0000000000dab4c5 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdab4c5)
#58 0x0000000000c5f554 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc5f554)
#59 0x00007df1d5c29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#60 0x00007df1d5c29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#61 0x0000000000da5765 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda5765)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134