Clang-21 crash with: Assertion `Entry != DelayedTypos.end() && "Failed to get the state for a TypoExpr!"' failed. (original) (raw)
Description
I encountered a crash in Clang-21 when compiling the following code:
void _Z4func() { entry: int tmp = add(int, 0, 0); uint tmp = add(uint, 1, 1); ubyte tmp = add(ubyte, 1, 2); sbyte tmp = add(sbyte, 2, 3); call(void, f, (int)tmp); call(void, g, (ubyte)tmp); ret(void); }
Clang Version
$ clang -v
Ubuntu clang version 21.0.0 (++20250501082025+9b1051281e43-1exp120250501082214.882)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm-21/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/13
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/13
Candidate multilib: .;@m64
Selected multilib: .;@m64
Command
The compilation command used was:
clang++ bug.cpp -O3 -Wall -Wextra -fno-strict-aliasing -fwrapv -g -fsanitize=address -c -o bug.o
Error Message
:3:26: error: expected '(' for function-style cast or type construction 3 | int tmp = add(int, 0, 0); | ~~~^ :4:9: error: use of undeclared identifier 'uint'; did you mean 'int'? 4 | uint tmp = add(uint, 1, 1); | ^~~~ | int :4:14: error: redefinition of 'tmp' 4 | uint tmp = add(uint, 1, 1); | ^ :3:13: note: previous definition is here 3 | int tmp = add(int, 0, 0); | ^ :4:24: error: use of undeclared identifier 'uint'; did you mean 'using'? 4 | uint tmp = add(uint, 1, 1); | ^~~~ | using :4:24: error: expected expression :5:9: error: unknown type name 'ubyte' 5 | ubyte tmp = add(ubyte, 1, 2); | ^ :5:25: error: use of undeclared identifier 'ubyte' 5 | ubyte tmp = add(ubyte, 1, 2); | ^~~~~ :6:9: error: unknown type name 'sbyte' 6 | sbyte tmp = add(sbyte, 2, 3); | ^ :6:25: error: use of undeclared identifier 'sbyte' 6 | sbyte tmp = add(sbyte, 2, 3); | ^~~~~ :7:18: error: expected '(' for function-style cast or type construction 7 | call(void, f, (int)tmp); | ~~~~^ :7:20: error: use of undeclared identifier 'f' 7 | call(void, f, (int)tmp); | ^ clang++: /root/llvm-project/llvm/tools/clang/lib/Sema/SemaLookup.cpp:5791: const clang::Sema::TypoExprState& clang::Sema::getTypoExprState(clang::TypoExpr*) const: Assertion `Entry != DelayedTypos.end() && "Failed to get the state for a TypoExpr!"' 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 -O3 -Wall -Wextra -fno-strict-aliasing -fwrapv -g -fsanitize=address 1. :8:9: current parser token 'call' 2. :1:16: parsing function body '_Z4func' 3. :1:16: in compound statement ('{}') #0 0x0000000003f76d78 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f76d78) #1 0x0000000003f74a04 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f74a04) #2 0x0000000003eb98c8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0 #3 0x00007401b9842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520) #4 0x00007401b98969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc) #5 0x00007401b9842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476) #6 0x00007401b98287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3) #7 0x00007401b982871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b) #8 0x00007401b9839e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96) #9 0x0000000006d15a66 clang::Sema::getTypoExprState(clang::TypoExpr*) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6d15a66) #10 0x0000000006c0e1e7 (anonymous namespace)::TransformTypos::TransformTypoExpr(clang::TypoExpr*) SemaExprCXX.cpp:0:0 #11 0x0000000006c24a69 clang::TreeTransform<(anonymous namespace)::TransformTypos>::TransformRecoveryExpr(clang::RecoveryExpr*) SemaExprCXX.cpp:0:0 #12 0x0000000006c42d66 (anonymous namespace)::TransformTypos::RecursiveTransformLoop(clang::Expr*, bool&) SemaExprCXX.cpp:0:0 #13 0x0000000006c1770d clang::Sema::CorrectDelayedTyposInExpr(clang::Expr*, clang::VarDecl*, bool, llvm::function_ref (clang::Expr*)>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c1770d) #14 0x0000000006c18d0d clang::Sema::ActOnFinishFullExpr(clang::Expr*, clang::SourceLocation, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c18d0d) #15 0x0000000006f7526e clang::Sema::ActOnExprStmt(clang::ActionResult, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6f7526e) #16 0x00000000066f2124 clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66f2124) #17 0x00000000066e9b42 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66e9b42) #18 0x00000000066eaa6d clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66eaa6d) #19 0x00000000066f2783 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66f2783) #20 0x00000000066f2f4a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66f2f4a) #21 0x00000000065fa913 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65fa913) #22 0x0000000006630fbd 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+++0x6630fbd) #23 0x00000000065ee44e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65ee44e) #24 0x00000000065eec09 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65eec09) #25 0x00000000065f652a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f652a) #26 0x00000000065f74cd clang::Parser::ParseTopLevelDecl(clang::OpaquePtr&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f74cd) #27 0x00000000065f7980 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f7980) #28 0x00000000065e9873 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65e9873) #29 0x0000000004918f78 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4918f78) #30 0x0000000004c0c235 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c0c235) #31 0x0000000004b8b83e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4b8b83e) #32 0x0000000004d000e9 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d000e9) #33 0x0000000000da766f cc1_main(llvm::ArrayRef, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda766f) #34 0x0000000000d9d83a ExecuteCC1Tool(llvm::SmallVectorImpl&, llvm::ToolContext const&) driver.cpp:0:0 #35 0x000000000497f839 void llvm::function_ref::callback_fn>, std::__cxx11::basic_string, std::allocator>*, bool*) const::'lambda'()>(long) Job.cpp:0:0 #36 0x0000000003eb9d64 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3eb9d64) #37 0x000000000497fe4f clang::driver::CC1Command::Execute(llvm::ArrayRef>, std::__cxx11::basic_string, std::allocator>*, bool*) const (.part.0) Job.cpp:0:0 #38 0x000000000494229d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x494229d) #39 0x000000000494332e clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x494332e) #40 0x000000000494b185 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x494b185) #41 0x0000000000da35d8 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda35d8) #42 0x0000000000c28a64 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc28a64) #43 0x00007401b9829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90) #44 0x00007401b9829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40) #45 0x0000000000d9d2e5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xd9d2e5) clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation) Compiler returned: 134The issue can also be reproduced on Compiler Explorer:https://godbolt.org/z/ePK8o9EMo
Please let me know if you need any more details.