<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/62449>62449</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            "parser at end of file" crash with `-fasync-exceptions`
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          apple1417
      </td>
    </tr>
</table>

<pre>
    I was messing with the various exception flags (trying to catch an exception thrown by an msvc-compiled extern C export), and ran into this crash. Without `-fasync-exceptions` it compiles fine. I was basically just trying random combinations of the flags, no idea if `-fexceptions -fasync-exceptions -fcxx-exceptions` is something that actually makes any sense.

Running using the [`llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64.tar.xz` release from here](https://github.com/mstorsjo/llvm-mingw/releases/tag/20230320), under an ubuntu wsl install.

[uarrayproperty-0941a7.zip](https://github.com/llvm/llvm-project/files/11358971/uarrayproperty-0941a7.zip)

<details>
 <summary>Shell output</summary>
  
```
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: /mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/clang --start-no-unused-arguments --driver-mode=g++ -target x86_64-w64-mingw32 -rtlib=compiler-rt -unwindlib=libunwind -stdlib=libc++ -fuse-ld=lld --end-no-unused-arguments -DARCH_X64 -DUE4 -DUNREALSDK_SHARED @CMakeFiles/unrealsdk.dir/includes_CXX.rsp -g -Wall -Wextra -Wpedantic -fexceptions -fasync-exceptions -fcxx-exceptions -std=gnu++20 -Werror -Winvalid-pch -Xclang -include-pch -Xclang /mnt/p/sdk_shared_test/out/build/mingw-debug/unrealsdk/CMakeFiles/unrealsdk.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /mnt/p/sdk_shared_test/out/build/mingw-debug/unrealsdk/CMakeFiles/unrealsdk.dir/cmake_pch.hxx -MD -MT unrealsdk/CMakeFiles/unrealsdk.dir/src/unrealsdk/unreal/classes/properties/uarrayproperty.cpp.obj -MF CMakeFiles/unrealsdk.dir/src/unrealsdk/unreal/classes/properties/uarrayproperty.cpp.obj.d 
-o CMakeFiles/unrealsdk.dir/src/unrealsdk/unreal/classes/properties/uarrayproperty.cpp.obj -c /mnt/p/sdk_shared_test/unrealsdk/src/unrealsdk/unreal/classes/properties/uarrayproperty.cpp
1. <eof> parser at end of file
2.      Code generation
3. Running pass 'Function Pass Manager' on module '/mnt/p/sdk_shared_test/unrealsdk/src/unrealsdk/unreal/classes/properties/uarrayproperty.cpp'.
4. Running pass 'X86 DAG->DAG Instruction Selection' on function '@_ZN9unrealsdk6unreal12WrappedArrayD2Ev'
 #0 0x00007f3402b7e72a llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x97e72a)
 #1 0x00007f3402b7c4b4 llvm::sys::CleanupOnSignal(unsigned long) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x97c4b4)
 #2 0x00007f3402a74e68 (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x874e68)
 #3 0x00007f3401df0520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007f3402f9f4d1 llvm::MachineBasicBlock::addSuccessorWithoutProb(llvm::MachineBasicBlock*) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0xd9f4d1)
 #5 0x00007f34033fc09b llvm::FastISel::fastEmitBranch(llvm::MachineBasicBlock*, llvm::DebugLoc const&) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x11fc09b)
 #6 0x00007f3403402e37 llvm::FastISel::selectOperator(llvm::User const*, unsigned int) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x1202e37)
 #7 0x00007f3403408482 llvm::FastISel::selectInstruction(llvm::Instruction const*) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x1208482)
 #8 0x00007f34035ac8e1 llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x13ac8e1)
 #9 0x00007f34035ae89a (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x13ae89a)
#10 0x00007f34054ee660 (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x32ee660)
#11 0x00007f3403017682 (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0xe17682)
#12 0x00007f3402ce6d09 llvm::FPPassManager::runOnFunction(llvm::Function&) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0xae6d09) 
#13 0x00007f3402ce6fa1 llvm::FPPassManager::runOnModule(llvm::Module&) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0xae6fa1)
#14 0x00007f3402ce7a37 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0xae7a37)
#15 0x00007f3408da9651 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x1ba9651)
#16 0x00007f340917e39d (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x1f7e39d)
#17 0x00007f3407d19769 clang::ParseAST(clang::Sema&, bool, bool) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0xb19769)
#18 0x00007f340917eead clang::CodeGenAction::ExecuteAction() (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x1f7eead)
#19 0x00007f3409b8b1c1 clang::FrontendAction::Execute() (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x298b1c1)
#20 0x00007f3409b1c70a clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x291c70a)
#21 0x00007f3409c1a833 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x2a1a833)
#22 0x0000556523e16c74 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/clang+0x16c74)
#23 0x0000556523e11b6f (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/clang+0x11b6f)
#24 0x00007f34097c7205 (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x25c7205)
#25 0x00007f3402a752d5 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libLLVM-16.so+0x8752d5)
#26 0x00007f34097c9b08 clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x25c9b08)
#27 0x00007f340979572b clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x259572b)
#28 0x00007f3409796273 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x2596273)
#29 0x00007f340979e6ef clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/../lib/libclang-cpp.so.16+0x259e6ef)
#30 0x0000556523e14a41 clang_main(int, char**) (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/clang+0x14a41)
#31 0x00007f3401dd7d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#32 0x00007f3401dd7e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#33 0x0000556523e0cd3a _start (/mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin/clang+0xcd3a)
clang-16: error: clang frontend command failed with exit code 139 (use -v to see invocation)
clang version 16.0.0 (https://github.com/llvm/llvm-project.git 08d094a0e457360ad8b94b017d2dc277e697ca76)
Target: x86_64-w64-windows-gnu
Thread model: posix
InstalledDir: /mnt/p/unrealsdk/llvm-mingw-20230320-msvcrt-ubuntu-18.04-x86_64/bin
clang-16: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-16: note: diagnostic msg: /tmp/uarrayproperty-0941a7.cpp
clang-16: note: diagnostic msg: /tmp/uarrayproperty-0941a7.sh
clang-16: note: diagnostic msg:

********************
gmake[2]: *** [unrealsdk/CMakeFiles/unrealsdk.dir/build.make:452: unrealsdk/CMakeFiles/unrealsdk.dir/src/unrealsdk/unreal/classes/properties/uarrayproperty.cpp.obj] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:167: unrealsdk/CMakeFiles/unrealsdk.dir/all] Error 2
gmake: *** [Makefile:136: all] Error 2
```

</details>

</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzMWl1zoziz_jXkRgUFAvNxkQvHHzPznmSTSrI7U-fGJSRhawISRxKJs7_-lAS2kZPsTN6djXcq5cFCqJ-nu9Xdwo2UYmtO6bk3ufAm8zPU6Y2Q56htaxolUXZWCvJ8_gU8IQUaqhTja_DE9AboDQWPSDLRKUC3mLaaCQ6qGq0V8GCu5bOZqgXASOMNQHw0S2-keOKgfDbDjXrEPhZNy2pKAN1qKjmYAbpthdQeLDw4A4gTIBEHjGsB9IYpgCVSmwB8ZXojOg28NPQrpJ459vdilJeGgGkwrK1AxTgNQM-lRIphVNfP4HunNBjgSsSJaMwTJePILgJEZblaZgYLF4ARigCreqkHeeAlBOBXeLs9xqSAEg3VG6uhDdIAYd1ZMA16oAog_gwU5YoGXjj3wmn_edtxbp7oVP8cBcZmaVjXj43fML5-8mEI4zCGoW-UKrXflR3XnR_lQZj42zxdpUmgkQy2fxocktYUKQoqKRqwoZJ6k7kH843WrfLiqQeXHlyumd50ZYBF48Flo7SQ6rvw4PIg1YPLYSXlwaVGaw8ud0AG-3WcUGmM3QMCT6oGjCuN6tqh6E0uOiQlem6laKnUz35YJBHKgj9Z-0NwBtEOWCvFd4q1B5eVMb0Hl1EUT_Iiizy4fFsELBw08YxQjVitvHjRDwEvnqmuaZB89uLF3YbWNRCdbjvtxTMPLg_3hvlgWCoNhz_79eZyMb1bANWVDdMAgbJbA0mNw5sd826OTKnOkrQbhXFcd4RaD7HbBJQIP2iJMDW2aCVtpcBUKUqAEp3sh82TSCmBGdKUANlxoLBkrR4MdKcRfgCka1qDzA6FAbD_bqRYS9QAJNddQ7k22IHxFm7AtUbjXFJUK_LgOM7PuKsHlyXjHlziGvE18H2lkdQ-F37HO0WJvxcKfJ9I9kil3whCvXi-9uCFBy-Ar5FcUw36Bf2nNOnFxxD4Utes9OL5ECOkLzXwO_7EOOlv1KzsvwJf6cMY3q1ddYr6NTGjNQG-Tzl5Hdx8ejv7vPqWJsCf_76wn7_dLqaXd_P_Wd19nt4u5sBLwtkVeqDLwWX3WgsIk8bMvWHVavbtWyBVC_w18L-iugb-V7rVEgH_a0sJ4pph8N7AZPkZrfGu5wZDs6yUQgL_K-OPqGbEb_EG-N8GWwx4nEHH7Io8rNQGSUpWmiozKjrzWXasJmam9QJCy2595CR_qQdsouSqxZtgs90Gr0E6HRzgX82Bf3UPfvpxJfGRtP6693nVR9UhWLF-BSd-BbhtA1F-B_7VEnyIpIAMUc0XHyMQ-PhHlhwL-RVie4JRYAI-FZUXL0CLpDJZTAPKiSkLTGrp58EhEs4EoWBNOZW2eOhvxgHYpe4WKVMdZcuOY1sJ3ZiBK8TRmkoPZkBw0AjS1dTM-mjKMBtiffIS8bc8BfPpJ9-LF_PpJ_CFKy27nsMdram9GghUO3KGQhKu_ve3Yg8s7a8i-FWitqVkakDM4eLRzB0yLIxDEG7DMAyzKk5CWGY0gwjY1BdPvXiqnlV_cSMZ1zYx3ffZLT9MkuhpJZSWFDUeTE2GY0aXhSlOf3VuCgLzLCv7z8vLP678KA2U8OBFuC0s_H1pYfhFR_xwUiav8ZvVFPGuveZ3bM2NMfOO23KdgFrw9WnYGLAOG-iwQVlC0_zDceVWrIMrHuOKSBVOYDjg6lcZCoKa8W7r27xnbuBAiSC1iyZw0pew-zUTh2tVVAmJRpa7QnjDOL0wh4uLWuCHfhgRctdhU3IJOZxYbqQoHX99-SicnsLAxHJySE_GpOO4wmFRjkgvkdJf7mjdf6uQ0ouG6QuJON78BMXZaKm5yb2XAgMsuIlx6Sk0EEWWoaOC1FFBEkIaZ2-qQNmAeN2aLCCko4LfTQYZyE37k9GwoU8UnSJouThksyOyeZLDH5Ad5QOH7zhPHGifhKZh4dDMHZoThHM63sv7tDaffjrQ7UendX3wYuUw3qf2k7pwbNk4dIsjujQv0CmAGbmHgzaMIyfbTxJK0zT8cGAxtHIdYE6ajsMoS3P44cCoFevgchMupikJi_H-vDFV5a6o7Iuhjl_znWe-6q4nclRkwVvJe3rxMb0KRT9B78rWzW7CGYZORa1CkWO45IhZhpwsUtM1ws9DaXvg-KVp6z3PfxM_A9_h5xQKOUFFOomAPYj3eG1dgPAD5eS6f2kG89HtOUNrLpRmWC34mnE6FO6jKZ8pIlTeUSTx5np4cXEItM5Ucxb7RPkPZt3bd0M_mHSJ-Pq1KaNkoSXj61taucM7A02PFhyUMB223gzYdy_mTsfZ_3V01WrpxTP3NNM-SabpanemGT1EaIW6Wq8IrammP3gwXpi_j3AYS9g3Z3glgqgvqaPSeoXjNk5xVUQZjQtyInSVFe6gc6qhjERFlhZjW94gqej07t715TvaoMFLSiHqw_8n0ntpcTvE8mO1U0Re2UCDk_YbeEtxp-nOb_PTuVFl4Tp8nAKnKPMywk70WUrB9WHXjQmdkgosLNIxFRi6VCKchcg1Tf-62pTXiGP6unXe5v5BGeN1upaNQ9cptAocoTyOnbzREzuwfhQYvST5QisfdNZ4lSayLByau7ptMkknMKZRirMEYBytGsTcxG5fi5lsEs_wBo1OjCZyz4A7BmfgUTDyz7HtVWy3nYHscIqPOEVlWv3DGIwIB4NTVhUZzmA4OZHVJ1a4g25y9HpsAslkVCLMJFKbW4rFI5XPM7NLt7q_c9vxO1TR-tlxjd3b1ZW07mEs33MtPiqtv3jzZhg5lNMjgxRlmI_3c_873cB_Fs1E0yBOjiPyq9thX_MIW4-h2ql2DmXYUOWMiqTVCm-3UdR_sT__m4qIGUx2kzmTzcBKS8S02t0-Wg7VtQlCQo7umynTQ6q3-9Fu05N5o9G8Y5rMNU0xyWD5pmlsPEUvsuXOXk7wPXrQTHirnP6LqVOnZjqx9qxyHO3lR9pLYRa_V3v_EaV6W3X_EeUlU_qtY0aD6voPirUYToWH_dAiZlzRvkb8eW0PTvsv0rlRqaPz4kjnNKXVW_zmo2unaHilWnjLVh-o81PVJhOrxLGW9z-57fJ4gpKheN5VJzuWNlROP6TaMCAclJH7kw7JSPHOn3RgQQrnLZ_785VZkyYhWK3MYyvbbGIV8F4pNHGlHNVJISYxAv36_6wSjaA9kt4botSLp8C2dpiLvlOiGk4IAA_-WiHbkGeb_ejW9tERCqLYGr1TFPiPQAugKAVsVJCPJYFHKhUTHERpEAbWUu_rbQrWTIMwJ2GRoJAmkyxOQ0TyskjKMMoIJBhmGU2LDKMs3cvu3-kYaqOWnyfGiXhS1lz9rI00B95GEPtuH7RCsW1_60vfmkbJnMlf38v0whJcaHOCA2T__gs0am0FD_7zN_5G_WxD19n0_n46-wzuPy_A8vry8vrrl98-geWXy8UduL-2wxe_fwK3i5vr2_t9r9fNa11juTIx4M3Osf0ESYEtligBSO-X_EkVwKVu2je79vatGr9kNbV5x2JOq-DfNtG6QQ_Um1xAbzLvkQ63gTe5-OlmItvKFNil4mkygWalD-9E8iZzsLCNY5HLLXqNmwPJXFespgZ4lGbvgo_q-iAZjiUfi9xJMUJia-TXnj3q2dz3hHpwedwWekbOY1LEBTqj51GawyxNsyg625wXYQaTApMoxynK0yJJswjmsEgSjMoqLs_YuQ0cCSyiKIomUZDmFclImE9wVRUFxl4S0gaxOjCxJhByfWa7Pc9TmCTFWY1KWivbvA0hp0_A3vSg8aIzeW7jU9mtlZeENVNaHVbRTNf03IPw9bYmCIfeURv_32qvPutkff7ft6taDv8fAAD__8ngMWs">