Timm =?utf-8?q?Bäder?= <tbae...@redhat.com>, Timm =?utf-8?q?Bäder?= <tbae...@redhat.com> Message-ID: In-Reply-To: <llvm.org/llvm/llvm-project/pull/144...@github.com>
DavidSpickett wrote: This only reproduces if we build it with clang (19.1.7, but might not be version specific). I added a debug trap in place of the assert and got a better traceback: ``` -- Testing: 1 tests, 1 workers -- FAIL: Clang :: AST/ByteCode/intap.cpp (1 of 1) ******************** TEST 'Clang :: AST/ByteCode/intap.cpp' FAILED ******************** Exit Code: 133 Command Output (stderr): -- /home/david.spickett/build-llvm-arm/bin/clang -cc1 -internal-isystem /home/david.spickett/build-llvm-arm/lib/clang/21/include -nostdsysteminc -fexperimental-new-constant-interpreter -fms-extensions -std=c++11 -verify=expected,both /home/david.spickett/llvm-project/clang/test/AST/ByteCode/intap.cpp # RUN: at line 1 + /home/david.spickett/build-llvm-arm/bin/clang -cc1 -internal-isystem /home/david.spickett/build-llvm-arm/lib/clang/21/include -nostdsysteminc -fexperimental-new-constant-interpreter -fms-extensions -std=c++11 -verify=expected,both /home/david.spickett/llvm-project/clang/test/AST/ByteCode/intap.cpp 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: /home/david.spickett/build-llvm-arm/bin/clang -cc1 -internal-isystem /home/david.spickett/build-llvm-arm/lib/clang/21/include -nostdsysteminc -fexperimental-new-constant-interpreter -fms-extensions -std=c++11 -verify=expected,both /home/david.spickett/llvm-project/clang/test/AST/ByteCode/intap.cpp 1. /home/david.spickett/llvm-project/clang/test/AST/ByteCode/intap.cpp:28:35: current parser token ';' #0 0x024a15b8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/david.spickett/build-llvm-arm/bin/clang+0x1b535b8) #1 0x0249edfc llvm::sys::RunSignalHandlers() (/home/david.spickett/build-llvm-arm/bin/clang+0x1b50dfc) #2 0x024a203c SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0 #3 0xf7b1d6f0 __default_rt_sa_restorer ./signal/../sysdeps/unix/sysv/linux/arm/sigrestorer.S:80:0 #4 0x013a0f08 llvm::APInt::APInt(unsigned int, unsigned long long, bool, bool) (/home/david.spickett/build-llvm-arm/bin/clang+0xa52f08) #5 0x056644e0 clang::interp::IntegralAP<true>::toAPSInt(unsigned int) const (/home/david.spickett/build-llvm-arm/bin/clang+0x4d164e0) #6 0x0562df08 bool clang::interp::EvalEmitter::emitRet<(clang::interp::PrimType)9>(clang::interp::SourceInfo const&) (/home/david.spickett/build-llvm-arm/bin/clang+0x4cdff08) #7 0x0598b3a0 clang::interp::Compiler<clang::interp::EvalEmitter>::visitDeclAndReturn(clang::VarDecl const*, bool) (/home/david.spickett/build-llvm-arm/bin/clang+0x503d3a0) #8 0x05593398 clang::interp::EvalEmitter::interpretDecl(clang::VarDecl const*, bool) (/home/david.spickett/build-llvm-arm/bin/clang+0x4c45398) #9 0x0558add0 clang::interp::Context::evaluateAsInitializer(clang::interp::State&, clang::VarDecl const*, clang::APValue&) (/home/david.spickett/build-llvm-arm/bin/clang+0x4c3cdd0) #10 0x054aeebc clang::Expr::EvaluateAsInitializer(clang::APValue&, clang::ASTContext const&, clang::VarDecl const*, llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/home/david.spickett/build-llvm-arm/bin/clang+0x4b60ebc) #11 0x0537e7c4 clang::VarDecl::evaluateValueImpl(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/home/david.spickett/build-llvm-arm/bin/clang+0x4a307c4) #12 0x0537e948 clang::VarDecl::checkForConstantInitialization(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&) const (/home/david.spickett/build-llvm-arm/bin/clang+0x4a30948) #13 0x04838118 clang::Sema::CheckCompleteVariableDeclaration(clang::VarDecl*) (/home/david.spickett/build-llvm-arm/bin/clang+0x3eea118) #14 0x04836b6c clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/home/david.spickett/build-llvm-arm/bin/clang+0x3ee8b6c) #15 0x04567694 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/home/david.spickett/build-llvm-arm/bin/clang+0x3c19694) #16 0x04563fa0 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/home/david.spickett/build-llvm-arm/bin/clang+0x3c15fa0) #17 0x0453c540 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/home/david.spickett/build-llvm-arm/bin/clang+0x3bee540) #18 0x0453bc14 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/home/david.spickett/build-llvm-arm/bin/clang+0x3bedc14) #19 0x0453abf4 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/home/david.spickett/build-llvm-arm/bin/clang+0x3becbf4) #20 0x04538830 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/home/david.spickett/build-llvm-arm/bin/clang+0x3bea830) #21 0x045341b8 clang::ParseAST(clang::Sema&, bool, bool) (/home/david.spickett/build-llvm-arm/bin/clang+0x3be61b8) #22 0x02f785c4 clang::FrontendAction::Execute() (/home/david.spickett/build-llvm-arm/bin/clang+0x262a5c4) #23 0x02ef08ac clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/home/david.spickett/build-llvm-arm/bin/clang+0x25a28ac) #24 0x0305fdd0 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/home/david.spickett/build-llvm-arm/bin/clang+0x2711dd0) #25 0x01257cd0 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/home/david.spickett/build-llvm-arm/bin/clang+0x909cd0) #26 0x01253fa8 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0 #27 0x01252f68 clang_main(int, char**, llvm::ToolContext const&) (/home/david.spickett/build-llvm-arm/bin/clang+0x904f68) #28 0x012630a8 main (/home/david.spickett/build-llvm-arm/bin/clang+0x9150a8) #29 0xf7b0d7d6 __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:74:3 #30 0xf7b0d886 call_init ./csu/libc-start.c:128:20 #31 0xf7b0d886 __libc_start_main ./csu/libc-start.c:379:5 /home/david.spickett/build-llvm-arm/tools/clang/test/AST/ByteCode/Output/intap.cpp.script: line 4: 1330655 Trace/breakpoint trap (core dumped) /home/david.spickett/build-llvm-arm/bin/clang -cc1 -internal-isystem /home/david.spickett/build-llvm-arm/lib/clang/21/include -nostdsysteminc -fexperimental-new-constant-interpreter -fms-extensions -std=c++11 -verify=expected,both /home/david.spickett/llvm-project/clang/test/AST/ByteCode/intap.cpp ``` So either it's a clang bug or its undefined behaviour, I bet the latter but this backtrace isn't much help. Trying to get a debug build, proving difficult due to memory limitations. https://github.com/llvm/llvm-project/pull/144246 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
