Description
Reproducer:
https://godbolt.org/z/fa6Gs6vWY
int a = 0o0.;Backtrace:
clang++: /root/llvm-project/llvm/tools/clang/lib/Lex/LiteralSupport.cpp:1568: llvm::APFloatBase::opStatus clang::NumericLiteralParser::GetFloatValue(llvm::APFloat&, llvm::RoundingMode): Assertion `StatusOrErr && "Invalid floating point representation"' 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 <source>
1. <source>:1:9: current parser token '0o0.'
#0 0x0000000003fac638 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3fac638)
#1 0x0000000003faa2c4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3faa2c4)
#2 0x0000000003eeeef8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007d7bf4442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007d7bf44969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x00007d7bf4442476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007d7bf44287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x00007d7bf442871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x00007d7bf4439e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000007e46f74 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7e46f74)
#10 0x0000000006b60814 BuildFloatingLiteral(clang::Sema&, clang::NumericLiteralParser&, clang::QualType, clang::SourceLocation) SemaExpr.cpp:0:0
#11 0x0000000006b618e7 clang::Sema::ActOnNumericConstant(clang::Token const&, clang::Scope*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6b618e7)
#12 0x00000000066c9960 clang::Parser::ParseCastExpression(clang::CastParseKind, bool, bool&, clang::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66c9960)
#13 0x00000000066cb367 clang::Parser::ParseCastExpression(clang::CastParseKind, bool, clang::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66cb367)
#14 0x00000000066cb3f9 clang::Parser::ParseAssignmentExpression(clang::TypeCastState) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66cb3f9)
#15 0x0000000006681cc8 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6681cc8)
#16 0x00000000066915c9 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+++0x66915c9)
#17 0x000000000664f19e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x664f19e)
#18 0x000000000664f959 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x664f959)
#19 0x000000000665726a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x665726a)
#20 0x000000000665820d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x665820d)
#21 0x00000000066586c0 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66586c0)
#22 0x000000000664a5a3 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x664a5a3)
#23 0x000000000495a298 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x495a298)
#24 0x0000000004c52cf5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c52cf5)
#25 0x0000000004bd10fe clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4bd10fe)
#26 0x0000000004d44d19 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d44d19)
#27 0x0000000000dae7af cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdae7af)
#28 0x0000000000da53ca ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#29 0x00000000049c13a9 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
#30 0x0000000003eef394 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3eef394)
#31 0x00000000049c19bf 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
#32 0x000000000498378d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x498378d)
#33 0x000000000498481e 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+++0x498481e)
#34 0x000000000498cb05 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x498cb05)
#35 0x0000000000daacbf clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdaacbf)
#36 0x0000000000c304c4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc304c4)
#37 0x00007d7bf4429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#38 0x00007d7bf4429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#39 0x0000000000da4e75 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda4e75)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134