[clang] [alpha.webkit.UnretainedCallArgsChecker] Add a checker for NS or CF type call arguments. (PR #130729)

Tue Mar 11 12:58:22 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-sles-build-only` running on `rocm-worker-hw-04-sles` while building `clang` at step 6 "Add check check-clang".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/140/builds/18759

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (Add check check-clang) failure: test (failure)
******************** TEST 'Clang :: Analysis/Checkers/WebKit/unretained-call-args.mm' FAILED ********************
Exit Code: 134

Command Output (stderr):
--
RUN: at line 1: /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang -cc1 -internal-isystem /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/lib/clang/21/include -nostdsysteminc -analyze -analyzer-constraints=range -setup-static-analyzer -analyzer-checker=alpha.webkit.UnretainedCallArgsChecker -verify /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.src/clang/test/Analysis/Checkers/WebKit/unretained-call-args.mm
+ /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang -cc1 -internal-isystem /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/lib/clang/21/include -nostdsysteminc -analyze -analyzer-constraints=range -setup-static-analyzer -analyzer-checker=alpha.webkit.UnretainedCallArgsChecker -verify /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.src/clang/test/Analysis/Checkers/WebKit/unretained-call-args.mm
clang: /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.src/llvm/include/llvm/Support/Casting.h:662: decltype(auto) llvm::dyn_cast(From*) [with To = clang::ParenExpr; From = clang::Expr]: Assertion `detail::isPresent(Val) && "dyn_cast on a non-existent value"' 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: /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang -cc1 -internal-isystem /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/lib/clang/21/include -nostdsysteminc -analyze -analyzer-constraints=range -setup-static-analyzer -analyzer-checker=alpha.webkit.UnretainedCallArgsChecker -verify /home/botworker/bbot/builds/openmp-offload-sles-build/llvm.src/clang/test/Analysis/Checkers/WebKit/unretained-call-args.mm
1.	<eof> parser at end of file
 #0 0x000000000286d858 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x286d858)
 #1 0x000000000286ad54 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #2 0x00007f171e088910 __restore_rt (/lib64/libpthread.so.0+0x16910)
 #3 0x00007f171d9b6d2b raise (/lib64/libc.so.6+0x4ad2b)
 #4 0x00007f171d9b83e5 abort (/lib64/libc.so.6+0x4c3e5)
 #5 0x00007f171d9aec6a __assert_fail_base (/lib64/libc.so.6+0x42c6a)
 #6 0x00007f171d9aecf2 (/lib64/libc.so.6+0x42cf2)
 #7 0x0000000004d9e2ee clang::IgnoreParensSingleStep(clang::Expr*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x4d9e2ee)
 #8 0x000000000575e41c clang::Expr::IgnoreParenCasts() (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x575e41c)
 #9 0x00000000045fdd72 (anonymous namespace)::RawPtrRefCallArgsChecker::checkASTDecl(clang::TranslationUnitDecl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) const::LocalVisitor::VisitObjCMessageExpr(clang::ObjCMessageExpr*) RawPtrRefCallArgsChecker.cpp:0:0
#10 0x00000000056c02c5 clang::DynamicRecursiveASTVisitorBase<false>::TraverseObjCMessageExpr(clang::ObjCMessageExpr*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56c02c5)
#11 0x00000000056b5b09 clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (.constprop.8768) DynamicRecursiveASTVisitor.cpp:0:0
#12 0x00000000056b5c33 clang::DynamicRecursiveASTVisitorBase<false>::TraverseStmt(clang::Stmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56b5c33)
#13 0x00000000056c0230 clang::DynamicRecursiveASTVisitorBase<false>::TraverseObjCMessageExpr(clang::ObjCMessageExpr*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56c0230)
#14 0x00000000056b5b09 clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (.constprop.8768) DynamicRecursiveASTVisitor.cpp:0:0
#15 0x00000000056b5c33 clang::DynamicRecursiveASTVisitorBase<false>::TraverseStmt(clang::Stmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56b5c33)
#16 0x00000000056c3ec8 clang::DynamicRecursiveASTVisitorBase<false>::TraverseCallExpr(clang::CallExpr*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56c3ec8)
#17 0x00000000056b5b09 clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (.constprop.8768) DynamicRecursiveASTVisitor.cpp:0:0
#18 0x00000000056b5c33 clang::DynamicRecursiveASTVisitorBase<false>::TraverseStmt(clang::Stmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56b5c33)
#19 0x00000000056d1ba8 clang::DynamicRecursiveASTVisitorBase<false>::TraverseCXXBindTemporaryExpr(clang::CXXBindTemporaryExpr*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56d1ba8)
#20 0x00000000056b5b09 clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (.constprop.8768) DynamicRecursiveASTVisitor.cpp:0:0
#21 0x00000000056b5c33 clang::DynamicRecursiveASTVisitorBase<false>::TraverseStmt(clang::Stmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56b5c33)
#22 0x00000000056c2888 clang::DynamicRecursiveASTVisitorBase<false>::TraverseExprWithCleanups(clang::ExprWithCleanups*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56c2888)
#23 0x00000000056b5b09 clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (.constprop.8768) DynamicRecursiveASTVisitor.cpp:0:0
#24 0x00000000056b5c33 clang::DynamicRecursiveASTVisitorBase<false>::TraverseStmt(clang::Stmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56b5c33)
#25 0x00000000056e8f4f clang::DynamicRecursiveASTVisitorBase<false>::TraverseVarDecl(clang::VarDecl*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56e8f4f)
#26 0x00000000045facd4 (anonymous namespace)::RawPtrRefCallArgsChecker::checkASTDecl(clang::TranslationUnitDecl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) const::LocalVisitor::TraverseDecl(clang::Decl*) RawPtrRefCallArgsChecker.cpp:0:0
#27 0x00000000056b62b5 clang::DynamicRecursiveASTVisitorBase<false>::TraverseDeclStmt(clang::DeclStmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56b62b5)
#28 0x00000000056b5b09 clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (.constprop.8768) DynamicRecursiveASTVisitor.cpp:0:0
#29 0x00000000056b5c33 clang::DynamicRecursiveASTVisitorBase<false>::TraverseStmt(clang::Stmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56b5c33)
#30 0x00000000056c414e clang::DynamicRecursiveASTVisitorBase<false>::TraverseCompoundStmt(clang::CompoundStmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56c414e)
#31 0x00000000056b5b09 clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (.constprop.8768) DynamicRecursiveASTVisitor.cpp:0:0
#32 0x00000000056b5c33 clang::DynamicRecursiveASTVisitorBase<false>::TraverseStmt(clang::Stmt*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56b5c33)
#33 0x00000000056ebbac clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseFunctionHelper(clang::FunctionDecl*) DynamicRecursiveASTVisitor.cpp:0:0
#34 0x00000000056ebe67 clang::DynamicRecursiveASTVisitorBase<false>::TraverseFunctionDecl(clang::FunctionDecl*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56ebe67)
#35 0x00000000045facd4 (anonymous namespace)::RawPtrRefCallArgsChecker::checkASTDecl(clang::TranslationUnitDecl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) const::LocalVisitor::TraverseDecl(clang::Decl*) RawPtrRefCallArgsChecker.cpp:0:0
#36 0x00000000056b7556 clang::RecursiveASTVisitor<(anonymous namespace)::Impl<false>>::TraverseDeclContextHelper(clang::DeclContext*) (.part.7182) DynamicRecursiveASTVisitor.cpp:0:0
#37 0x00000000056e2a09 clang::DynamicRecursiveASTVisitorBase<false>::TraverseNamespaceDecl(clang::NamespaceDecl*) (/home/botworker/bbot/builds/openmp-offload-sles-build/llvm.build/bin/clang+0x56e2a09)
...

```

</details>

https://github.com/llvm/llvm-project/pull/130729