clang 21 crashes in DiagnoseTypeAwareAllocators with coroutines #164088
Description
https://godbolt.org/z/K9x6P7xGf
using wnr = dd::with_resource<dd::chunk_from<dd::new_delete_resource>>;
dd::generator<int> gen(int x, wnr) {
co_yield x;
}
void foo() {
for (int x : gen(5, wnr{})) {
;
}
}crash output
```cppPLEASE 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-21.1.0/bin/clang++ -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-15.2.0 -fcolor-diagnostics -fno-crash-diagnostics -std=c++20 -O3 -DNDEBUG
-
:1639:1: current parser token 'void' -
:1634:36: parsing function body 'gen'
#0 0x0000000003bfa6c8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x3bfa6c8)
#1 0x0000000003bf809c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x3bf809c)
#2 0x0000000003b483f8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x0000771af2a42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00000000072395d0 clang::Decl::getASTContext() const (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x72395d0)
#5 0x000000000721bb09 clang::FunctionDecl::isTypeAwareOperatorNewOrDelete() const (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x721bb09)
#6 0x00000000064ee9dd DiagnoseTypeAwareAllocators(clang::Sema&, clang::SourceLocation, unsigned int, clang::DeclarationName, clang::QualType) SemaCoroutine.cpp:0:0
#7 0x00000000064f2d81 clang::CoroutineStmtBuilder::makeNewAndDeleteExpr() (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x64f2d81)
#8 0x00000000064faa17 clang::Sema::CheckCompletedCoroutineBody(clang::FunctionDecl*, clang::Stmt*&) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x64faa17)
#9 0x0000000006557ac2 clang::Sema::ActOnFinishFunctionBody(clang::Decl*, clang::Stmt*, bool) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x6557ac2)
#10 0x00000000062c4e2f clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x62c4e2f)
#11 0x000000000619c808 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x619c808)
#12 0x00000000061e8cdf clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x61e8cdf)
#13 0x00000000061955ff clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x61955ff)
#14 0x00000000061963de clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x61963de)
#15 0x000000000619ef7f clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x619ef7f)
#16 0x00000000061a07b0 clang::Parser::ParseTopLevelDecl(clang::OpaquePtrclang::DeclGroupRef&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x61a07b0)
#17 0x000000000618ef7a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x618ef7a)
#18 0x000000000454985d clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x454985d)
#19 0x000000000485b83a clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x485b83a)
#20 0x00000000047d655b clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x47d655b)
#21 0x000000000494e513 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x494e513)
#22 0x0000000000da5f25 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0xda5f25)
#23 0x0000000000d9de2d ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#24 0x00000000045bb869 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optionalllvm::StringRef>, std::__cxx11::basic_string<char, std::char_traits, std::allocator>, bool) const::'lambda'()>(long) Job.cpp:0:0
#25 0x0000000003b48813 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x3b48813)
#26 0x00000000045bba89 clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optionalllvm::StringRef>, std::__cxx11::basic_string<char, std::char_traits, std::allocator>, bool) const (.part.0) Job.cpp:0:0
#27 0x000000000457eddd clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x457eddd)
#28 0x000000000457fd91 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x457fd91)
#29 0x000000000458d29c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0x458d29c)
#30 0x0000000000da2751 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0xda2751)
#31 0x0000000000c526f4 main (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0xc526f4)
#32 0x0000771af2a29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#33 0x0000771af2a29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#34 0x0000000000d9d8c5 _start (/opt/compiler-explorer/clang-21.1.0/bin/clang+++0xd9d8c5)
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