<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/57598>57598</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            fatal error: error in backend: Incorrect flag for llvm.bpf.preserve.type.info intrinsic
        </td>
    </tr>

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

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

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

<pre>
    Hi 

I cloned https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git, compile and installed the bpf-next kernel, then when compiling bpf selftest, but got error

```
[root@centos-dev bpf]# make
  CLNG-BPF [test_maps] test_core_reloc_kernel.bpf.o
fatal error: error in backend: Incorrect flag for llvm.bpf.preserve.type.info intrinsic
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: clang -g -Werror -D__TARGET_ARCH_x86 -mlittle-endian -I/usr/src/bpf-next/tools/testing/selftests/bpf/tools/include -I/usr/src/bpf-next/tools/testing/selftests/bpf -I/usr/src/bpf-next/tools/include/uapi -I/usr/src/bpf-next/tools/testing/selftests/usr/include -idirafter /usr/local/lib/clang/15.0.0/include -idirafter /usr/local/include -idirafter /usr/include -Wno-compare-distinct-pointer-types -DENABLE_ATOMICS_TESTS -O2 -target bpf -c progs/test_core_reloc_kernel.c -mcpu=v3 -o /usr/src/bpf-next/tools/testing/selftests/bpf/test_core_reloc_kernel.bpf.o
1.      <eof> parser at end of file
2.      Optimizer
 #0 0x0000000001c825cc llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/local/bin/clang-15+0x1c825cc)
 #1 0x0000000001c8071c llvm::sys::RunSignalHandlers() (/usr/local/bin/clang-15+0x1c8071c)
 #2 0x0000000001c80c59 llvm::sys::CleanupOnSignal(unsigned long) (/usr/local/bin/clang-15+0x1c80c59)
 #3 0x0000000001bf3947 llvm::CrashRecoveryContext::HandleExit(int) (/usr/local/bin/clang-15+0x1bf3947)
 #4 0x0000000001c79d7e llvm::sys::Process::Exit(int, bool) (/usr/local/bin/clang-15+0x1c79d7e)
 #5 0x0000000000a275cb (/usr/local/bin/clang-15+0xa275cb)
 #6 0x0000000001bf95bc llvm::report_fatal_error(llvm::Twine const&, bool) (/usr/local/bin/clang-15+0x1bf95bc)
 #7 0x0000000001bf9728 (/usr/local/bin/clang-15+0x1bf9728)
 #8 0x0000000000a58c8e (anonymous namespace)::BPFAbstractMemberAccess::IsPreserveDIAccessIndexCall(llvm::CallInst const*, (anonymous namespace)::BPFAbstractMemberAccess::CallInfo&) (.isra.280) BPFAbstractMemberAccess.cpp:0:0
 #9 0x0000000000a5ddd5 (anonymous namespace)::BPFAbstractMemberAccess::run(llvm::Function&) (.constprop.380) BPFAbstractMemberAccess.cpp:0:0
#10 0x0000000000a5e1e3 llvm::BPFAbstractMemberAccessPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/usr/local/bin/clang-15+0xa5e1e3)
#11 0x0000000000a362ad llvm::detail::PassModel<llvm::Function, llvm::BPFAbstractMemberAccessPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/usr/local/bin/clang-15+0xa362ad)
#12 0x0000000000a42f6b llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/usr/local/bin/clang-15+0xa42f6b)
#13 0x000000000154ec9a llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/usr/local/bin/clang-15+0x154ec9a)
#14 0x0000000000a3637d llvm::detail::PassModel<llvm::Module, llvm::ModuleToFunctionPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/usr/local/bin/clang-15+0xa3637d)
#15 0x000000000154bff2 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/usr/local/bin/clang-15+0x154bff2)
#16 0x0000000001f6cada (anonymous namespace)::EmitAssemblyHelper::RunOptimizationPipeline(clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>&, std::unique_ptr<llvm::ToolOutputFile, std::default_delete<llvm::ToolOutputFile>>&) (.constprop.832) BackendUtil.cpp:0:0
#17 0x0000000001f6f3c6 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>>) (/usr/local/bin/clang-15+0x1f6f3c6)
#18 0x0000000002afa691 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/usr/local/bin/clang-15+0x2afa691)
#19 0x00000000035bc101 clang::ParseAST(clang::Sema&, bool, bool) (/usr/local/bin/clang-15+0x35bc101)
#20 0x0000000002af9da5 clang::CodeGenAction::ExecuteAction() (/usr/local/bin/clang-15+0x2af9da5)
#21 0x0000000002579689 clang::FrontendAction::Execute() (/usr/local/bin/clang-15+0x2579689)
#22 0x0000000002515b1b clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/local/bin/clang-15+0x2515b1b)
#23 0x0000000002633773 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/local/bin/clang-15+0x2633773)
#24 0x0000000000a28a34 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/local/bin/clang-15+0xa28a34)
#25 0x0000000000a25abb ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#26 0x00000000023cb005 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#27 0x0000000001bf3803 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/usr/local/bin/clang-15+0x1bf3803)
#28 0x00000000023cb86e clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.216) Job.cpp:0:0
#29 0x000000000239f537 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&) const (/usr/local/bin/clang-15+0x239f537)
#30 0x000000000239fe83 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) const (/usr/local/bin/clang-15+0x239fe83)
#31 0x00000000023ac2f9 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/usr/local/bin/clang-15+0x23ac2f9)
#32 0x00000000009ab13b main (/usr/local/bin/clang-15+0x9ab13b)
#33 0x00007f43d8623493 __libc_start_main (/lib64/libc.so.6+0x23493)
#34 0x0000000000a2567e _start (/usr/local/bin/clang-15+0xa2567e)
clang-15: error: clang frontend command failed with exit code 70 (use -v to see invocation)
clang version 15.0.0 (https://github.com/llvm/llvm-project.git e91a73de24d60954700d7ac0293c050ab2cbe90b)
Target: bpf
Thread model: posix
InstalledDir: /usr/local/bin
clang-15: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-15: note: diagnostic msg: /tmp/test_core_reloc_kernel-b480b4.c
clang-15: note: diagnostic msg: /tmp/test_core_reloc_kernel-b480b4.sh
clang-15: note: diagnostic msg: 

********************
make: *** [Makefile:522: /usr/src/bpf-next/tools/testing/selftests/bpf/test_core_reloc_kernel.bpf.o] Error 70
[test_core_reloc_kernel-b480b4.c.txt](https://github.com/llvm/llvm-project/files/9503087/test_core_reloc_kernel-b480b4.c.txt)
[test_core_reloc_kernel-b480b4.sh.txt](https://github.com/llvm/llvm-project/files/9503088/test_core_reloc_kernel-b480b4.sh.txt)
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzlWltz4joS_jXkRQXlC7bxQx48hEyylZmkArPz6JJlmWjHt5XkTHJ-_bYkAxYhCWTmnDq7O8UQkKXur7_ullpCWZM_n18xNHIuRk5i3q8RKZua5uhBylaM_GTkXcJrzeTkB-U1LScNX0ND22XwLkgF7yWruyf4azqY3vCetYV5H9f0SU504xyRpmpZSRGuc8RqIXFZgjb5QNGmJ9rImavmGv1Ub2YYq9eqGxK0LCQVWmDWSbRuJKKcN3xoyih0-pf5GnziTSNHU4fQWjZinNNHJWwUXIw8H1X4BzUdEZrffP08_nR3iWCMUpNWGLgILpD-QhpOU07LhqQ9JSBl0pjBBQaLeix-Yj6AnSjD5Aetc9V2XYMETolERYnXqIAOZflYaSktp4LyRzqRzy2dsLpoYLDkQBQjRsHdzSJZLpDosopJhMH8NeK0bbhEsnnptYcumwB3ykugo_8zbnnzLwAAX5kQHRXwoXcIKbucancQjsWDxi05JlRRDehgJKFCgMtE03HTrEZiIRrCsIQHvKuRIJy1cmIgLyUIQXlXtQqZbnLgUXzHmzXHFcJ83VXgEwUcwg-Dk8fw-m7IG1-k6Sq5_7xYpcn9_Cp9moVoXJVMypKOgVKGazS-Bgs6wVVIcjKIOvgom6ZUBirfQfyoLn30iG2Qbvps7P8leUeN7jWpjrhlv6DQDNoCZznjGB5ytH0GgYpLnaYqZTW_8NcNJs7EOXLoW322z77XzVilKeZ0nDOFlchx20D8Uj5W8SzAl4uvyaebRZqsbr9cz5fparFcLdH41kNjCWFApU7vMYFQa9Ybow9kHIEQIG038i8efTRu0EfZ693_blq7Kl5H_pw2xchfILAR0hRhmHUg9psCFTClmZ6e6nnbSlaxP2g_HwE830HOk7P555KZFxCi817lhJ-IZ2E-3EGyS50xK5N2s10njn-mjZCcYsjkUKUe9B15McifvfBZxuqNu8duMPI-OU-9Whixw-Xu4XIi9yCu-65esnWNyytI95JyoXWeolpJtlR7-6pJEB9SPS8prrv2tgcAGjuYD9dqlYK1an0iClBiofAtFFnhx9NogGKupsF7SppHyp_nDQQzhJV-YohYPKl1bXaiI4waC8fUZiOK84geDhA9A5svQ-2wFEKsn8SGVmKhCIYoHOxFAcmOlWd6W-LCPXLjIBtGl1m4Ur1opmbRHMb76ierYSFqarXShx-x0Gi0IEX7kCJvdoq8SMf9Tt7MZiyYkRlV8nDd1M9V0wlU44qKVidzbAyD2iLJhFpX5RdaZZQnZOfTa3HXVwEX16b9us7p0xwqJYsd1XAN1GwIShRBv6LYCCwazbXmeMIExxNv5qjvr4ydkFat647-v2Ul3mMlz_Pgl8BBVWFZf9nB8sKaegBW8wALRzvxT0Ss5kFnDzF1qT8I1Vdk3eGjAM4HkhKYw54FE19wjdewRPjzA4P8xc6wo3JP490GpjLItQ3yQw_nAxg5lZiV_ZwCVnxpcii6D4Kx4L9FhNVxE8W5MZiKj9GgXn8DfjV9Fr-eze_UK8LsN_Cr-74F_aMs_g87R3NvOcde1YMpJTEewABndCVdNRuVivQkx63U27YDBpkBJ5nTDznVmB6sZc10P5X96LRU3sCfH8nB74qVHQevRcpfR6yhzeI12IuSrCi8I1LxEJv_LSz0Vlo02FVaERKc4_cW60XFZCIErADl8xUtW9onDuwT-t0P1kHFWlpCFQfSzM7TrCHmNCTZTmhC5uZJV7N_dzRtpW2s2vm0PzmTNN3sfwaDclrgrpQpRD2V9J2B_WQYHqN2BeXmbSfbTl4y4_BjdO6N2incL1NmvqfLFMPGN8nKw6VJtOefwichGtCpfNELMXptti8YXtewb2RELOq1doa2ftDliuKc8iXFnDwo9wFEq-4edJ3D5PKZ1u_0Wund_DudbuDToS47Kpfq7Gt9T4tDU1df8v694ur4RDR-tBLR2kt4uMBh7B6wD7ahoqs2GWf2oSuOa1HqnPtWs70ISJarzdb1pMmih2BhtCp7H3ZXrmNhvFNnI6DQRrCkFbb2cCfv5XpVQyyes8dXnOPgQKz28dDvmCnpJN2EyClnGL0CC4FVZHtBFIezeIjgkivetyE5hHCiciPbUu7Zyt0gczPbfH3WztUuEdcweR9k4HW0p8WK0W8BtKowL_T9KPKtictA2eF8BPkvYb2wQyX-8cCMXgvYXkEFS50_RYS4aYWZvTInnONnNQH5c_KA-W6zbSpquw0aHhuWn4bPaLfg7Z_CBDjL0IasubvSmTMAuaxg6_5PSqB0u67a8iBW7cucs0fKD64ynlUFeD7JHCfQ5gwm3qKvFVOuGdFPTRxvSxuws1S_GqRFrXDsvGh09x6du-DUCtf5fkocZH7XaJYLbFe3u1Viu9PZzuFpSp6eXNd8ybBgRE3Y6iTYkGR1Vg0pbG2Z-i3CPN4TB8apEFXbhO1z1SXZzWja94Z6PWTkRSWushzmv2jHFVjan13-o8kOO2T_pMqfOf5RJ5PqrBYXtHy2-Hzbd6cdXgISK2Bn-7EzCyn6v_a9LvVazOXEc8M33Rzb3MVF4EevcqdnQvxiLdkQak2bewNVh9cqsTe6Jv3UsbXqqDnXmDGMEfsXENWBzvxT7QQSxetGwtMbtjsQ3a8lX0ySW8-2mCmn9sfox_IyLOxPZgeMt9ixCwkfE6-IX0NyMfhsLaEH1s7XWP1L2TmaF222xYt9yhbjzPUzpFbpY4WaIZbMTVkSFVM_n4WeP419lKYly9QEATmbDhRAazg1f8lENJOwhwpjLKH7JUUQRhQZccdXAmrQVur22eYiwWj7-3jRF2rqXoSmvcBM3aP4yeQDok9M5UBOUeQo1Z2gaPyorgcIShEbFFlDRQhcKaAVmV-G1cDTbhOoGx6Ixi6O_Jx60zx04mAaOU4eYeJ4sU-cwMGZRzIaOzt_mI2iskz9FmuaHmBDlaPKnGIlqG0Ee-qvp2xujFwwzcZBVl-QVzdq95agfLsRRpVY6_G9-37hNbhx0t_NSFarZH6FVlcLdHl7c3P7_frrZ3R5fbNYotWtbv707TO6X9zd3q8Uu2bsobsVM6Gy59X7FdsOnCK9NMFTLLcij6TAu5RV--qv4ONsOnOy6YT8CTLFwwd89Zs8pu_7aKh9s7rs8wUa9U_5fhJ4nhVgv_9iQXCBFvqGS7S7ofSODyYSVKv7SiemJnxVZilgceD4zix6399a13aCew-aePht2GZHxI0NbnPR64yeu2HoBb7jB85Zfu7nsR_jM8lkSc__xJtZZx0vzz9-9SqIgnh29nCeRa7jxkEeBn7mzIppUQReFFHq5VPiYS8_K3FGS3EOzhh5Xk1_Ii0CPgPvZ-zcczzPiZ3ICYLYdSbYDXKfelBsZGHkx8Fo6lBY18qJtqnh6zN-riFl3VrAwxJKJ7F7CDOOumNBtTqQjzv50PDzR1ar-3NVyc609nON_j_IBzss">