[clang][bytecode] Assertion `isIntegralPointer()' failed with reference to pointer array element #155132
Description
Reproducer:
https://godbolt.org/z/Y7cvM3e5Y
struct S {
int foo(){ return 42; }
};
S s;
S *sp[2] = {&s, &s};
S *&spp = sp[1];Backtrace:
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ByteCode/Pointer.h:268: bool clang::interp::Pointer::isZero() const: Assertion `isIntegralPointer()' 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 -fexperimental-new-constant-interpreter <source>
1. <source>:7:16: current parser token ';'
#0 0x000000000403c9d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x403c9d8)
#1 0x0000000004039e04 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4039e04)
#2 0x0000000003f7e518 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x0000727a11a42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x0000727a11a969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x0000727a11a42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x0000727a11a287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x0000727a11a2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x0000727a11a39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000007b19949 clang::interp::collectBlocks(clang::interp::Pointer const&, llvm::SetVector<clang::interp::Block const*, llvm::SmallVector<clang::interp::Block const*, 0u>, llvm::DenseSet<clang::interp::Block const*, llvm::DenseMapInfo<clang::interp::Block const*, void>>, 0u>&) EvaluationResult.cpp:0:0
#10 0x0000000007b1a7da clang::interp::EvaluationResult::checkReturnValue(clang::interp::InterpState&, clang::interp::Context const&, clang::interp::Pointer const&, clang::interp::SourceInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7b1a7da)
#11 0x00000000079f4dd6 bool clang::interp::EvalEmitter::emitRet<(clang::interp::PrimType)13>(clang::interp::SourceInfo const&) (.part.0) EvalEmitter.cpp:0:0
#12 0x0000000007a4c9a8 clang::interp::EvalEmitter::emitRet(clang::interp::PrimType, clang::interp::SourceInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7a4c9a8)
#13 0x0000000007e50dd4 clang::interp::Compiler<clang::interp::EvalEmitter>::visitDeclAndReturn(clang::VarDecl const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e50dd4)
#14 0x0000000007a0a707 clang::interp::EvalEmitter::interpretDecl(clang::VarDecl const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7a0a707)
#15 0x00000000079c1d65 clang::interp::Context::evaluateAsInitializer(clang::interp::State&, clang::VarDecl const*, clang::APValue&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x79c1d65)
#16 0x000000000799a063 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+++0x799a063)
#17 0x00000000077ad862 clang::VarDecl::evaluateValueImpl(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x77ad862)
#18 0x00000000077adc11 clang::VarDecl::checkForConstantInitialization(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x77adc11)
#19 0x0000000006a99a9b clang::Sema::CheckCompleteVariableDeclaration(clang::VarDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a99a9b)
#20 0x0000000006aa11cb clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6aa11cb)
#21 0x000000000670494a clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x670494a)
#22 0x0000000006713379 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+++0x6713379)
#23 0x00000000066d06ee clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66d06ee)
#24 0x00000000066d0e8f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66d0e8f)
#25 0x00000000066d8cca clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66d8cca)
#26 0x00000000066d9c65 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66d9c65)
#27 0x00000000066cb7ea clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66cb7ea)
#28 0x00000000049b06f8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49b06f8)
#29 0x0000000004ca6b95 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca6b95)
#30 0x0000000004c22d3e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c22d3e)
#31 0x0000000004d98bc1 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d98bc1)
#32 0x0000000000db3c5f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdb3c5f)
#33 0x0000000000daa90a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#34 0x0000000004a186d9 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
#35 0x0000000003f7e9b4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f7e9b4)
#36 0x0000000004a18cef 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
#37 0x00000000049da9ad clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49da9ad)
#38 0x00000000049dba3e 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+++0x49dba3e)
#39 0x00000000049e3675 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49e3675)
#40 0x0000000000db0115 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdb0115)
#41 0x0000000000c63a44 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc63a44)
#42 0x0000727a11a29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#43 0x0000727a11a29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#44 0x0000000000daa3b5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdaa3b5)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134