[clang][bytecode] Assertion `Offset != PastEndMark && "invalid offset"' failed. #152903
Description
Reproducer:
https://godbolt.org/z/zMf6vG4sz
bool foo ()
{
return (&"ab"[0] == &"ba"[3]);
}Backtrace:
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ByteCode/Pointer.h:392: unsigned int clang::interp::Pointer::getOffset() const: Assertion `Offset != PastEndMark && "invalid offset"' 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>:3:32: current parser token ';'
2. <source>:2:1: parsing function body 'foo'
3. <source>:2:1: in compound statement ('{}')
#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 0x0000722660242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007226602969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x0000722660242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007226602287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000072266022871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x0000722660239e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x000000000799368e (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x799368e)
#10 0x0000000007ae4a89 clang::interp::arePotentiallyOverlappingStringLiterals(clang::interp::Pointer const&, clang::interp::Pointer const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7ae4a89)
#11 0x0000000007a09b2d bool clang::interp::CmpHelperEQ<clang::interp::Pointer>(clang::interp::InterpState&, clang::interp::CodePtr, llvm::function_ref<bool (clang::ComparisonCategoryResult)>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7a09b2d)
#12 0x0000000007a1eb59 clang::interp::EvalEmitter::emitEQ(clang::interp::PrimType, clang::interp::SourceInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7a1eb59)
#13 0x0000000007e0a36d clang::interp::Compiler<clang::interp::EvalEmitter>::VisitBinaryOperator(clang::BinaryOperator const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e0a36d)
#14 0x0000000007e07170 clang::interp::Compiler<clang::interp::EvalEmitter>::visit(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e07170)
#15 0x0000000007dfc1ca clang::interp::Compiler<clang::interp::EvalEmitter>::visitExpr(clang::Expr const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7dfc1ca)
#16 0x0000000007994171 clang::interp::EvalEmitter::interpretExpr(clang::Expr const*, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7994171)
#17 0x000000000798779f clang::interp::Context::evaluateAsRValue(clang::interp::State&, clang::Expr const*, clang::APValue&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x798779f)
#18 0x0000000007901e33 EvaluateAsRValue((anonymous namespace)::EvalInfo&, clang::Expr const*, clang::APValue&) ExprConstant.cpp:0:0
#19 0x0000000007903ec1 clang::Expr::EvaluateForOverflow(clang::ASTContext const&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7903ec1)
#20 0x0000000006901066 clang::Sema::CheckForIntOverflow(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6901066)
#21 0x0000000006938705 clang::Sema::CheckCompletedExpr(clang::Expr*, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6938705)
#22 0x0000000006cb8177 clang::Sema::ActOnFinishFullExpr(clang::Expr*, clang::SourceLocation, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6cb8177)
#23 0x0000000006fdb32e clang::Sema::BuildReturnStmt(clang::SourceLocation, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6fdb32e)
#24 0x0000000006fdc0c8 clang::Sema::ActOnReturnStmt(clang::SourceLocation, clang::Expr*, clang::Scope*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6fdc0c8)
#25 0x00000000067b874a clang::Parser::ParseReturnStatement() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x67b874a)
#26 0x00000000067bc7d1 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x67bc7d1)
#27 0x00000000067bdc39 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x67bdc39)
#28 0x00000000067c5d6b clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x67c5d6b)
#29 0x00000000067c65ba clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x67c65ba)
#30 0x00000000066bd483 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66bd483)
#31 0x00000000066f33ad 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+++0x66f33ad)
#32 0x00000000066b07ee clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b07ee)
#33 0x00000000066b0f8f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b0f8f)
#34 0x00000000066b8763 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b8763)
#35 0x00000000066b9675 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b9675)
#36 0x00000000066b9b30 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b9b30)
#37 0x00000000066ab843 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66ab843)
#38 0x00000000049b0d28 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49b0d28)
#39 0x0000000004ca5115 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca5115)
#40 0x0000000004c2144e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c2144e)
#41 0x0000000004d96861 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d96861)
#42 0x0000000000daf00f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdaf00f)
#43 0x0000000000da5cba ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#44 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
#45 0x0000000003f4d4e4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f4d4e4)
#46 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
#47 0x00000000049daf1d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49daf1d)
#48 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)
#49 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)
#50 0x0000000000dab4c5 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdab4c5)
#51 0x0000000000c5f554 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc5f554)
#52 0x0000722660229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#53 0x0000722660229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#54 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