<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/144302>144302</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang][OpenMP] Crashes with OpenMP `parallel` and `lastprivate` inside template member function
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          Rush10233
      </td>
    </tr>
</table>

<pre>
    Goes back to clang-3.9: https://godbolt.org/z/vad3Eddc3

Simplified test:

```c++
struct B
{
  int i;
  template<typename T>
void foo();
};

template<typename T>
void B::foo()
{
#pragma omp parallel
 {
  #pragma omp sections lastprivate (i)
    {
      i = 0;
    }
 }
}
```
$clang++ -fopenmp -fsyntax-only test.cpp

```
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 -fopenmp <source>
1.      <source>:17:3: current parser token '}'
2.      <source>:10:1: parsing function body 'B::foo'
3.      <source>:10:1: in compound statement ('{}')
4.      <source>:12:3: in compound statement ('{}')
 #0 0x0000000003c31b88 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3c31b88)
 #1 0x0000000003c2fccc llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3c2fccc)
 #2 0x0000000003b80358 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x000071a30ac42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00000000069ec7ec clang::SemaOpenMP::EndOpenMPDSABlock(clang::Stmt*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x69ec7ec)
 #5 0x00000000062d1691 clang::Parser::ParseOpenMPExecutableDirective(clang::Parser::ParsedStmtContext, llvm::omp::Directive, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x62d1691)
 #6 0x00000000062df7c7 clang::Parser::ParseOpenMPDeclarativeOrExecutableDirective(clang::Parser::ParsedStmtContext, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x62df7c7)
 #7 0x0000000006302bd4 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6302bd4)
 #8 0x00000000063047ce clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x63047ce)
 #9 0x000000000630d24d clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x630d24d)
#10 0x000000000630dbc4 void llvm::function_ref<void ()>::callback_fn<clang::Parser::ParseCompoundStatement(bool, unsigned int)::'lambda'()>(long) ParseStmt.cpp:0:0
#11 0x00000000079bc501 clang::StackExhaustionHandler::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x79bc501)
#12 0x00000000062fbe1e clang::Parser::ParseCompoundStatement(bool, unsigned int) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x62fbe1e)
#13 0x0000000006302b47 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6302b47)
#14 0x00000000063047ce clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x63047ce)
#15 0x0000000006305e68 clang::Parser::ParseStatement(clang::SourceLocation*, clang::Parser::ParsedStmtContext) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6305e68)
#16 0x00000000062d1bc2 clang::Parser::ParseOpenMPExecutableDirective(clang::Parser::ParsedStmtContext, llvm::omp::Directive, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x62d1bc2)
#17 0x00000000062df7c7 clang::Parser::ParseOpenMPDeclarativeOrExecutableDirective(clang::Parser::ParsedStmtContext, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x62df7c7)
#18 0x0000000006302bd4 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6302bd4)
#19 0x00000000063047ce clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x63047ce)
#20 0x000000000630d24d clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x630d24d)
#21 0x000000000630dc8a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x630dc8a)
#22 0x00000000061e7c06 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x61e7c06)
#23 0x000000000623424f clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x623424f)
#24 0x0000000006318870 clang::Parser::ParseDeclarationAfterTemplate(clang::DeclaratorContext, clang::Parser::ParsedTemplateInfo&, clang::ParsingDeclRAIIObject&, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6318870)
#25 0x0000000006325dfa clang::Parser::ParseTemplateDeclarationOrSpecialization(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6325dfa)
#26 0x000000000632617f clang::Parser::ParseDeclarationStartingWithTemplate(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x632617f)
#27 0x0000000006237197 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x6237197)
#28 0x00000000061ea961 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x61ea961)
#29 0x00000000061ec188 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x61ec188)
#30 0x00000000061da59a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x61da59a)
#31 0x000000000457ae7d clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-trunk/bin/clang+++0x457ae7d)
#32 0x000000000488ca8a clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-trunk/bin/clang+++0x488ca8a)
#33 0x00000000048082db clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x48082db)
#34 0x0000000004981033 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x4981033)
#35 0x0000000000d95745 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xd95745)
#36 0x0000000000d8d58d ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#37 0x00000000045ec9b9 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
#38 0x0000000003b80773 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3b80773)
#39 0x00000000045ecbd9 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
#40 0x00000000045af77d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-trunk/bin/clang+++0x45af77d)
#41 0x00000000045b0741 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+++0x45b0741)
#42 0x00000000045bb06c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x45bb06c)
#43 0x0000000000d91ed1 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xd91ed1)
#44 0x0000000000c4c4f4 main (/opt/compiler-explorer/clang-trunk/bin/clang+++0xc4c4f4)
#45 0x000071a30ac29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#46 0x000071a30ac29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#47 0x0000000000d8d025 _start (/opt/compiler-explorer/clang-trunk/bin/clang+++0xd8d025)
clang++: error: clang frontend command failed with exit code 139 (use -v to see invocation)
Compiler returned: 139
```

Generated by fuzzer.
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzsW11v2zjW_jXMDWFDor4vcqHaSd8MOkhRF-9cBhRF2dxKpJakMk5__YKkbFmK4yRdTTHYaZCmNsWP5zw8POeRSGGl2JZTeg2iDyBaX-FO74S8_tKpne-hILgqRPl0_VFQBQtMvkEtIKkx3y6CZQaCHO60bhUIcoBuAbrdirIQtV4KuQXo9jtAt4-4DG7KkgTAy4GXb1jT1qxitISaKm0a2nIQe-6XAPTB_Hq50rIjGpqPIDF_IWRcQwYC90XTpq2xpiBY6aeWctxQ-BUEN8DLHwUrYSUEQClAmWsAknX_wctfa_rB4AryoYcDBICCVuJtg6FoWthiieua1gbOAeK4hqJEM8EVrLHSrWSPWFMIUMpcpxDCY0PzwyAI1tA7WGgurl3n696CE6YsnNBOhuMMLirRUt60cFGpJ67xfiF4_WSJXpK2nTANvPzzp5t8cwNVVzRMQwyLbgslbYXUZp4nU8v0riuWRDQA3db14-G_RSvFvyjRAN0ypTqqALqFmJeQcVJ3JYV6RyGRWO2sA2mJCQVoBVtJWykIVYqWUIlOumLTEislCMOallB2HCoiWauXxnu0ccGya1rnON4SeNlnKbYSNxDLbddQrg1kCNCtaA0mIpqW1VQu6L6thaTSlFkH1rLj3wC6LRg_lB143JZ_YlktQrjYwoUwneG2NV12uu30UsFFY0yHi8U-jRdYNQvHNwjWjGtaw0XFxeKRykIoaq7DxQYuFltCFlqImuww4yBYXwRpKiuOW7UTGi4qImohFyXDWy6UZkS5MSyxk-LeCUCw6mm1ju0brkZlQe4nIMgDwxfppKRcG5dWVEItvlEOAUqMz6EEeDk619wzf0xz04zxLaw6bh0emqhh2p-uJNNNcLEbxqGhQnS8hEpjTc18QrsGE7NOHBi7dMJzHaGDOe_oyKxYD3p77_ATkMAv0hRaH7fo1ZNyHz5LxrV1wq_OjdOhksR_PgilJcUNQLFxZcY1QJkb9ce9EaAP3r7HNCD2x4hRRQg5h3hVU8y79p5v2JbjGqC04zbgl7AWZoi58FkEAz40wlekXhClcGWc9Qsl4pHKJwfo_zAvazNM2rM1qrMSXNO9C15B7tl_rv-g7z_xceBhEqIIeb0lNSsAut2n8UMcLmrGu_1iyzt3gSyVWMYWsm0yAA5PAccZJQklLtM5Ije0wfct5b9_dt9veOm-rjf5h1qQbwClp9V1owHK5-K3BzTAjUZwUenHmX8K97NdxyefHdibPSWdxkVN10ya3PRIx7iftSuNJf08GKcefEy4KBzkJ12tRpTZpflJEGxCgrlYCFHPRokzeqAknlBSJSR5AyVrSmosscF_L_97fmY20RgxmJiMTAw8VJThRRM3h9h3L492Cp5Xmspca8mKTpuEfRLGNg2u6_-nRAsJgtU5j15BFHYm4Loo9x5yLjhHfq6v8hTk2dGmNWYi3lE7EJ9OiA8TQn-A-L8L07OxZHgYWMomLJUoLC-iXvU5-sjWB1E-AZTOuogcjl7Fo8D3pigLEkIr-4e5OeiYB0krEKzs1cPNxI2rQnBdG0H7UPHx9L1u5dHCFTxmY5f-XCuAkho3RYmtSDmMitJDxu49rJkmRmPdSBgkWUEib5QYrHq52e9wp4yBh_zrJEzH_2B6t-mqihFGe6mzaZ3UuRjZ30rdTJPaGzZMKhoH_6qg_uUF-o5JmSmWW0wD4uBZLA8vp6tfsfzHY3mYDMSHv2L5K7HcsBRNWIponL6Npcuh4qxvvGz9bNYZ_IN1U63oFwT98-RzQdBASfK_LZ-NiVMV90s-_wT5bIifCsNfIfdMyEXPhOnfUT4jf4qSpPgiytteEE5RnrQxc_yG1LAhoqXz-qlBP9g2VpE-TYgXv8m2Na0YZ72PThowvj34sJBv8cWv_e7EHa8EJIIrfbnVJ6zpsJo_MTXrkyfHwsDRWLeiIERhddEeY_xHKbr2RWo2LSXPTRxIO78w3xjiXqT2ef33aJVbIb9gvqV3nM1KtyN0oHuiVv00TbxX6T5NVAeTn6-4V8l9B3Uns_klv7u7L9yW0GsMvykpjWrkhFCljMewihla5woFltmB94n-RVFZXQ5zB35O-L-XFieu2Xf8PDa8NgV_Y64sGwNX8YSr2E9eDwk9RxuNpWZ8-wfTux9z1R_iaTYmjK0DExMRHSR-dllEj9XNT_WO12v8ddLHMTPwlk4SL87iy9sZN3tNJcf1i_zNYf-zFDVnVjUmDgRkEwKIn16-3f4q2k_0kdZOOp1aft_if3f0s57I4mMa_kKrs6J4QxvsPv0uyq6md00rpLaqbc4l42w7Wj7ee439EkfZ80Cbb75OHisYsM6Ew1O7WVWvwzGgHKneMEowTUbafCVK-pHy3KpBV-RuhmlfZJ-AzoKtH33ANlKtYZoSPFbkt9JEEF6eATcnLDfwACsYw_JSVBZjytxAd1xpzAk9z9rLdsznkz24AfpIdIVZ6ntBcAq9BzlY8HiMkeklC-cLID2oAfJIr3hlFiVhBAnxHxrMxjfOuZT4yQaBFdlhebjDyG1QWMFxGVrZrZEZkTtoA_B4DDwto7SEB4JX_le7qs_f9981bX3Winj8qM300WfRk_upDJaSPVL5fBNlvM8aRpRkRTbnFpEbuHeSlb8STYN5OV2ZZ6dM6b6eaM3o2BBwQo6WjG_7CO_m89jg4YHs977vvhRYMfKgbPWewlFlU_CgJWZaHS5PusN1bZzePX3pr5sq-RCLrc84wm2T1_a1fhPFmclIp0dJkiQ4mYdzB0bclS8d3-CK1k8jLn_K_lQPc_DybOpRRZnBf7JHGJqXLZZ66b049aE3Zg1XyTjrjlizU4WfpbgDlaPIPGloKrz0pOVC1XykQE4MmyHHW1uP_hNO9EfhJaH_XiZ-E4V6mYbfRPGJKT2i4VLUPU57i5mZcbtX-nbmet_4y_izDA38oQl_hReTl7CuTz6PMv2ZFP8S7z-Rv7lUpeVkYCyYCAqflr3HHSTFAbGNFHm_zl_PuvOICANnADsSbB4JSViF0MCcZTTX3zBaND58iLIye-fhQ9tk6DCedkhDDz48mDYPSmOpH05sefMQNDwZIpnKLA9F0HU-z4zYHt14p9eCHFIpTU7InffAqpfxkPQ-XWFW0xL-yfQO0j0z3lJS6AfWVTpF4eIRagEVpZCdKG0z0kFhQ0l1Jzk1S8q0nJ6T9_KPlFNpj5QXT7Dqvn-ncnlVXgdlFmT4il77SeR5URSFwdXu2kvKKvKqAJGsKnAYBFkSJYjGZRyncUmDK3aNPBR5sR97cYBQsERVZvwu84soJCghIPRog1m9NOthKeT2yh6Ov_bDMPDQVY0LWiv7zgVCPV0IROsreW3P1BfdVoHQq5nSauhCM13bFzVci2gNog_9mdRo7U7OUuV4dMUQxN7xJYXYs4frQeydvIxgShlXrKTH9ylgQ5uCyuNZ7qtO1tc__i5Ab_HjNfpPAAAA___mjnbX">