<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/113325>113325</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang] clang trunk crashes at (anonymous namespace)::JumpScopeChecker::DiagnoseIndirectOrAsmJump(clang::Stmt*, unsigned int, clang::LabelDecl*, unsigned int)
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang:frontend,
            crash-on-invalid,
            clang:frontend:fuzzer,
            regression:17
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          yijan4845
      </td>
    </tr>
</table>

<pre>
    **This testcase is generated by a fuzzer.**

Compiler explorer: [https://godbolt.org/z/jT55687eW](https://godbolt.org/z/jT55687eW)

This invalid code will crash on both Clang Trunk and Clang Assertion Trunk:
```cpp
void func() {
  try { } catch(...) {
    __label__ label;
    asm goto("" : : : : label);
  };
}
```

It seems that this goes back to clang-17.

Stack dump:
```
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 <source>
1.      <eof> parser at end of file
2.      <source>:1:13: parsing function body 'func'
 #0 0x0000000003bc6148 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3bc6148)
 #1 0x0000000003bc3e0c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3bc3e0c)
 #2 0x0000000003b114b8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x000072041a842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00000000075a213b DiagnoseIndirectOrAsmJumpStmt(clang::Sema&, clang::Stmt*, clang::LabelDecl*, bool&) (.part.0) JumpDiagnostics.cpp:0:0
 #5 0x00000000075a6541 (anonymous namespace)::JumpScopeChecker::DiagnoseIndirectOrAsmJump(clang::Stmt*, unsigned int, clang::LabelDecl*, unsigned int) JumpDiagnostics.cpp:0:0
 #6 0x00000000075a6b60 (anonymous namespace)::JumpScopeChecker::VerifyJumps() JumpDiagnostics.cpp:0:0
 #7 0x00000000075ae8aa clang::Sema::DiagnoseInvalidJumps(clang::Stmt*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x75ae8aa)
 #8 0x0000000006a444e2 clang::Sema::ActOnFinishFunctionBody(clang::Decl*, clang::Stmt*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a444e2)
 #9 0x00000000067856cf clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x67856cf)
#10 0x0000000006699223 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6699223)
#11 0x00000000066cd8dd 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+++0x66cd8dd)
#12 0x000000000668cf6e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x668cf6e)
#13 0x000000000668d72e clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x668d72e)
#14 0x0000000006694ec3 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6694ec3)
#15 0x0000000006695dad clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6695dad)
#16 0x0000000006696250 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6696250)
#17 0x0000000006688292 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6688292)
#18 0x000000000453b728 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x453b728)
#19 0x00000000047f6bf9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47f6bf9)
#20 0x00000000047756be clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47756be)
#21 0x00000000048dc3de clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48dc3de)
#22 0x0000000000cdee3f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcdee3f)
#23 0x0000000000cd6b3a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#24 0x000000000457f449 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 0x0000000003b11964 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3b11964)
#26 0x000000000457fa3f 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 0x000000000454533d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x454533d)
#28 0x000000000454642d 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+++0x454642d)
#29 0x000000000454dd55 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x454dd55)
#30 0x0000000000cdbcff clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcdbcff)
#31 0x0000000000baadf4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xbaadf4)
#32 0x000072041a829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#33 0x000072041a829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#34 0x0000000000cd65ee _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcd65ee)
clang++: error: clang frontend command failed with exit code 139 (use -v to see invocation)
Compiler returned: 139
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzkWl1v2zgW_TXMCyFDor4f8uDY9WyKLFo0weyjQVGUzalEakkqdfrrFyTlRFQctx3ExWJ3MG5sfp5z7uXlFUWsFNtxSq9BegPS9RUe9F7I6yf2F-ZJkaRXlaifrgFaArR82DMFNVWaYEUhU3BHOZVY0xpWTxDDZvj-ncqFawzCNQjHf1ei61lLJaSHvhWSShAvIUhv9lr3CsRLgDYAbXairkSrF0LuANp8B2jz10OaZkVO_wXSNUDFzzdH5XR6i5vxR9yyGhJRU_iNtS0kEqs9FBxWQu_hqsV8Bx_kwL9CzOvx91IpKjUT3NWYyd3AWej-J33vSh4Fq2EzcAJQAVAJQX7jKiDU8sn8hCBfQ4I12QNULBaLWSsIt9sWV7TdbqH9C-JJHVYd3Akt7OgIIASthpOP64PKSTeQr59_me8-9KlEtxoqSjsF9R5rqI1gO0EVrDD5CrWAxKgRRPli2ulem9p66PrXurifn-8-LO8_QDVUHdMQw2rYQUl7IbUZdGZPpvdDtSCiA2jTto_HP0EvxV-UaIA2TKmBKoA21kKMk3aoKdR7OtrSoNUSEwrQCvaS9lIQqhStoRKDdMWmJ1ZKEGYdVw4cKiJZrxdvkgoXICw_S7GTuINY7oaOcq2s7mgjeoOMjB4ePHs42jjN8NGDVKCtC6FNxfixGqAbgG5gsKu_YdkECQx2MBBmXNz3ZvRB94NeKBh0RgsYBIciC7DqAvXENT6AeM24pi0MGi6CRyoroaiph8E9DIIdIYEWoiV7zDiI12fxmsaK417thYZBQ0QrZFAzvONCaUaUm8Mq7RWDeDXKG39wgkVGMBCvqGhA_AH2WCoqIdaQ8hqKBjaspa4lGlu-DBAvI_OJjbymI-M7u6zsIjTBCAKUu3WWj34OUBzC8BAe_4srkkVJAa0TxUsQL9WTcl8-S8a1NfGD85PipZHE37ZCaUlxB1BmfIVxbRepWXPvYmiAbsLDCO85SBn80Qx_TENyCv-qpZgP_Sd-z3YctwAVA7cBvIatMLNcAq0B46FFPtooSqoCroxjfKFEPFL55OD9A_O6NZMWo5Jem5Xgmh70woTQeBnaz_MU8ThFjsIkwkWCUhSO1FpWAbQ5FNk2S4KW8eEQ7PjgKshCiUVmgdsuHuxkCjtPMYriCq6dJ9NbXjNJif4kl6r7OHT9ve40QIXTw4p_Tzs8esa01LZbzkrvTDReU9KOVZUQre1rDbTosdQLgw6aqdYvq-m0GukMeZYmkRkHc8GfOjEoyHFHVW9dunQILAcierraU_LV7rkgXr5Jd0b1hdSzg1kbniXpN_1JbtmcW5WFf4_bn1Sy5snUqXET_ikA-QwALTCGc7PPxLO5xHGmU7q9-zocgXkOXUyRZzhJEopOI18S_YlvGGdqvxmD6Y2on3zwE0uedgXnxO9ObUTuUSs9anmRZqSZovps95TJ9yOte401NRv0z_J7NZJ1rJe1-q5MHZGX_BTFkbd1ZVlZIhT_FNM1bRhn5ptP87PbNQ1bLLEW8nXMejVm_UC7vsWa3vJGQCK40ud73WFNXc-l1vKOqQu5_SiIp1jkK0bqoq7PsjNS_CHF0L8p1H1PyWvCLxKOe9UpQawArBq0yUx_TegTm4nNg-4Ewc6u55x1I-QXzHf0lrOLiW-19cRHvvgFaTL6Q_E_yYnT3nJNpUtefl3LH7Y4a9AlMc8Dpo41zChyAcmsIp5k8UyyOkc_lsz4HRPcU-7N5f7uws397rcIZ3TxhEtmoTGh5Hxo_HBwrjUR8PeIdYm4Z9h6cqQzOdIan497D6K_o4_HFG2qw6ce_3ugn7UE8WoW8Gyg_ELNk9uJ-PScUfxT1ENLbzvzMG_33AvtmI6mp0M20yFDaXh-x2RS6f8NMQxXT4x8FlwKVKJXYizvH958lHFJ3eWSOwfJw-zlrUkaVzkqpphXoqZ_UL60cc8VfThQMmg6Fo1HbO-LdATiIfXS0CRvsqopp0g30iQGvD4B9UIgHYYpSBT6IPM0q6gvp5v2liuNOaGnFX2b1UV8ecTpEfESu6SoSVx7REbIL3wenxOl4hzfi0ToEZ9HwEuOQlJTGjeQkGjbYTPG5LBpKSV-soFlRfZYHlPupQ00K-iXoRV8FKy-DA-H0qMRz2hkVYzhUfxV9GAjxYTMfYfb9k9KtJC3Xd-e5GRjzUsXM8aYVE8eN0pYS_ZI5esHdQMr8cNG3iRJaYWZjHs8KtxKq62tdSvRHS6CeElw21aYfN023A_4bu7Rh1bRSnQd5vV8UZ-0odJjO9Gb2bHRYKKPlozvxm3EGfi5w3ZLDococj8qrBjZKtt8VNFrbAq2WmKm1bF6NhxuW7MmhJzUmyaT53frRE5z2wWgvMVdVWOA8hepUHE8UPwoqtP2SOfHgGWWTExx6rDP1XwZ-D1uaPvkyXnedJc42bSIPc_P5i6GY-_Y4f_OReanlW_5Qu4Ll6RxXL8pnLUdfrVjHtX0gvmso2nw1vnEmaZLL9mZcHvfBMLS9hxqluokWYJ-WZePolJvi_JRVHdMaU-Uc6H52Q96zIwLvD7WPavj6Cy_RU0jlqdmOVOzrtP0LeTryXcvcTiRMbxlhd-o5gXSWSvPVD__NVlI6oo0Y3g7ZihH_DasLMeg8ONt-91zEoPMg-7lhmGFcd0k0IB-77nd0N7cyH8Zhcq6_MWXUbaLN2Y8H5MmIdxuTbet0ljq7YTcT89CE3-WZJ7JpZRCN_7728wM_jz7tDpeQiqlsNc-bDlsxicMSMYV0WDW0hp-Y3oP6YFpd08jiq1rDYrC4BFqARWlkE3S_nJ2wURSPUhOzZo0nWeXEq7q67gu4xJf0esoR2UWFqiIr_bXWZrnOU3KkkQorOKMNE2SZRUhaZbSuCyu2DUKURKFCEVJkiTxAtV1HUVREUYlrbMyBElIO8zahVkrCyF3V_aywnUUxTFKr-zlDGUv2SB0DA5HEeyFjpWpsO_WBQ_GyyovFfMeJlv6_t2YaWwh6U5SpdzWEeWmPF1fyWt7g6IadgokYcuUVi8ANdOtvffjRk_Xo22smd2NCqog1v_9LxqvBtle__3bJKONHq_RfwIAAP__9bhaSg">