| Issue |
122058
|
| Summary |
[clang] Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' failed
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
wxie7
|
code
```c
struct s {
#include <malloc.h>
};
```
just crash on assertions trunk
https://godbolt.org/z/nnjG4rW1n
I searched based on the assertion and found no related issues
generated by fuzzing
<details><summary><strong>Backtrace</strong></summary>
<p>
```
clang: /root/llvm-project/llvm/include/llvm/Support/Casting.h:578: decltype(auto) llvm::cast(From*) [with To = clang::FunctionDecl; From = clang::Decl]: Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' 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 -x c -std=c2x -c <source>
1. /usr/include/malloc.h:69:59: current parser token ';'
2. <source>:1:1: parsing struct/union body 's'
#0 0x0000000003c8d758 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3c8d758)
#1 0x0000000003c8b464 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3c8b464)
#2 0x0000000003bd89a8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007fb4a4442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007fb4a44969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x00007fb4a4442476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007fb4a44287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x00007fb4a442871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x00007fb4a4439e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000006a1ba98 clang::Sema::AddAllocAlignAttr(clang::Decl*, clang::AttributeCommonInfo const&, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a1ba98)
#10 0x0000000006a3164a ProcessDeclAttribute(clang::Sema&, clang::Scope*, clang::Decl*, clang::ParsedAttr const&, clang::Sema::ProcessDeclAttributeOptions const&) (.isra.0) SemaDeclAttr.cpp:0:0
#11 0x0000000006a34ee3 clang::Sema::ProcessDeclAttributes(clang::Scope*, clang::Decl*, clang::Declarator const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a34ee3)
#12 0x0000000006999e8d clang::Sema::CheckFieldDecl(clang::DeclarationName, clang::QualType, clang::TypeSourceInfo*, clang::RecordDecl*, clang::SourceLocation, bool, clang::Expr*, clang::InClassInitStyle, clang::SourceLocation, clang::AccessSpecifier, clang::NamedDecl*, clang::Declarator*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6999e8d)
#13 0x00000000069b2b3d clang::Sema::HandleField(clang::Scope*, clang::RecordDecl*, clang::SourceLocation, clang::Declarator&, clang::Expr*, clang::InClassInitStyle, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x69b2b3d)
#14 0x00000000069b3051 clang::Sema::ActOnField(clang::Scope*, clang::Decl*, clang::SourceLocation, clang::Declarator&, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x69b3051)
#15 0x0000000006659717 clang::Decl* llvm::function_ref<clang::Decl* (clang::ParsingFieldDeclarator&)>::callback_fn<clang::Parser::ParseStructUnionBody(clang::SourceLocation, clang::TypeSpecifierType, clang::RecordDecl*)::'lambda'(clang::ParsingFieldDeclarator&)>(long, clang::ParsingFieldDeclarator&) ParseDecl.cpp:0:0
#16 0x0000000006684086 clang::Parser::ParseStructDeclaration(clang::ParsingDeclSpec&, llvm::function_ref<clang::Decl* (clang::ParsingFieldDeclarator&)>, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6684086)
#17 0x0000000006685879 clang::Parser::ParseStructUnionBody(clang::SourceLocation, clang::TypeSpecifierType, clang::RecordDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6685879)
#18 0x00000000066a02cb clang::Parser::ParseClassSpecifier(clang::tok::TokenKind, clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66a02cb)
#19 0x0000000006675930 clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6675930)
#20 0x0000000006632f84 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6632f84)
#21 0x00000000066339e9 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66339e9)
#22 0x000000000663b193 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x663b193)
#23 0x000000000663c06d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x663c06d)
#24 0x000000000663c510 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x663c510)
#25 0x000000000662e493 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x662e493)
#26 0x000000000461f2b8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x461f2b8)
#27 0x00000000048dbab9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x48dbab9)
#28 0x000000000485e18e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x485e18e)
#29 0x00000000049c906e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x49c906e)
#30 0x0000000000ceda5f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xceda5f)
#31 0x0000000000ce54fa ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#32 0x0000000004664e49 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
#33 0x0000000003bd8e54 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3bd8e54)
#34 0x000000000466543f 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
#35 0x000000000462902d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x462902d)
#36 0x000000000462a0ae 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+0x462a0ae)
#37 0x0000000004631bd5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4631bd5)
#38 0x0000000000cea8a3 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcea8a3)
#39 0x0000000000bb6b84 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbb6b84)
#40 0x00007fb4a4429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#41 0x00007fb4a4429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#42 0x0000000000ce4fa5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xce4fa5)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
</p>
</details>
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