<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Issue</th>
<td>
<a href=https://github.com/llvm/llvm-project/issues/150206>150206</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>
[analyzer] crash on __builtin_mul_overflow
</td>
</tr>
<tr>
<th>Labels</th>
<td>
new issue
</td>
</tr>
<tr>
<th>Assignees</th>
<td>
</td>
</tr>
<tr>
<th>Reporter</th>
<td>
k-arrows
</td>
</tr>
</table>
<pre>
Reproducer:
https://godbolt.org/z/x9j39ah4r
```cpp
void foo (unsigned __int128 a)
{
__builtin_mul_overflow(a, -16, &a);
}
```
Backtrace:
```console
clang++: warning: argument unused during compilation: '-S' [-Wunused-command-line-argument]
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-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 --analyze <source>
1. <eof> parser at end of file
2. While analyzing stack:
#0 Calling foo(unsigned __int128)
3. <source>:3:3: Error evaluating statement
4. <source>:3:3: Error evaluating statement
#0 0x0000000003c96348 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3c96348)
#1 0x0000000003c93d1c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3c93d1c)
#2 0x0000000003be4048 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000070fb4b242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00000000061cd35a (anonymous namespace)::SimpleSValBuilder::MakeSymIntVal(clang::ento::SymExpr const*, clang::BinaryOperatorKind, llvm::APSInt const&, clang::QualType) SimpleSValBuilder.cpp:0:0
#5 0x00000000061d1dde (anonymous namespace)::SimpleSValBuilder::evalBinOpNN(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::BinaryOperatorKind, clang::ento::NonLoc, clang::ento::NonLoc, clang::QualType) SimpleSValBuilder.cpp:0:0
#6 0x00000000061e3716 clang::ento::SValBuilder::evalBinOp(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::BinaryOperatorKind, clang::ento::SVal, clang::ento::SVal, clang::QualType) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x61e3716)
#7 0x0000000005ca3569 (anonymous namespace)::BuiltinFunctionChecker::handleOverflowBuiltin(clang::ento::CallEvent const&, clang::ento::CheckerContext&, clang::BinaryOperatorKind, clang::QualType) const BuiltinFunctionChecker.cpp:0:0
#8 0x0000000005ca46e6 bool clang::ento::eval::Call::_evalCall<(anonymous namespace)::BuiltinFunctionChecker>(void*, clang::ento::CallEvent const&, clang::ento::CheckerContext&) BuiltinFunctionChecker.cpp:0:0
#9 0x00000000060a615f clang::ento::CheckerManager::runCheckersForEvalCall(clang::ento::ExplodedNodeSet&, clang::ento::ExplodedNodeSet const&, clang::ento::CallEvent const&, clang::ento::ExprEngine&, clang::ento::EvalCallOptions const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x60a615f)
#10 0x0000000006126797 clang::ento::ExprEngine::evalCall(clang::ento::ExplodedNodeSet&, clang::ento::ExplodedNode*, clang::ento::CallEvent const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6126797)
#11 0x0000000006127207 clang::ento::ExprEngine::VisitCallExpr(clang::CallExpr const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6127207)
#12 0x00000000060f7880 clang::ento::ExprEngine::Visit(clang::Stmt const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x60f7880)
#13 0x00000000060f9ab5 clang::ento::ExprEngine::ProcessStmt(clang::Stmt const*, clang::ento::ExplodedNode*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x60f9ab5)
#14 0x00000000060ad5e2 clang::ento::CoreEngine::dispatchWorkItem(clang::ento::ExplodedNode*, clang::ProgramPoint, clang::ento::WorkListUnit const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x60ad5e2)
#15 0x00000000060ad84f clang::ento::CoreEngine::ExecuteWorkList(clang::LocationContext const*, unsigned int, llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x60ad84f)
#16 0x0000000005c61821 (anonymous namespace)::AnalysisConsumer::HandleCode(clang::Decl*, unsigned int, clang::ento::ExprEngine::InliningModes, llvm::DenseSet<clang::Decl const*, llvm::DenseMapInfo<clang::Decl const*, void>>*) AnalysisConsumer.cpp:0:0
#17 0x0000000005c62cb0 (anonymous namespace)::AnalysisConsumer::HandleTranslationUnit(clang::ASTContext&) AnalysisConsumer.cpp:0:0
#18 0x00000000062411ac clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x62411ac)
#19 0x00000000048e976a clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-trunk/bin/clang+++0x48e976a)
#20 0x00000000048648bb clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x48648bb)
#21 0x00000000049dd8a3 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x49dd8a3)
#22 0x0000000000db2015 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xdb2015)
#23 0x0000000000da9f7d ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#24 0x00000000046519c9 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
#25 0x0000000003be4463 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3be4463)
#26 0x0000000004651be9 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
#27 0x000000000461530d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-trunk/bin/clang+++0x461530d)
#28 0x00000000046162c1 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-trunk/bin/clang+++0x46162c1)
#29 0x00000000046227ec clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x46227ec)
#30 0x0000000000dae831 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xdae831)
#31 0x0000000000c5e024 main (/opt/compiler-explorer/clang-trunk/bin/clang+++0xc5e024)
#32 0x000070fb4b229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#33 0x000070fb4b229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#34 0x0000000000da9a15 _start (/opt/compiler-explorer/clang-trunk/bin/clang+++0xda9a15)
clang++: error: clang frontend command failed with exit code 139 (use -v to see invocation)
Compiler returned: 139
```
</pre>
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