<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/68929>68929</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            LLVM ERROR: Broken module found, compilation aborted! when building Firefox with full LTO
        </td>
    </tr>

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

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

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

<pre>
    This didn't happen before 8840da2db237cd714d975c199d5992945d2b71e9.

STR:
- Download https://drive.google.com/file/d/1eTOTaCkLfmShfSDF9OAF77sgxeJ-fgqT/view?usp=sharing
(unfortunately large, this is Firefox)
- Extract
- Run: `cd repr; ld.lld @response.txt`

```
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %8, metadata !26454674, metadata !DIExpression()), !dbg !26454731
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %17, metadata !26462027, metadata !DIExpression()), !dbg !26462037
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %8, metadata !26468121, metadata !DIExpression()), !dbg !26468178
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %17, metadata !26475461, metadata !DIExpression()), !dbg !26475471
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %8, metadata !26481438, metadata !DIExpression()), !dbg !26481495
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %17, metadata !26488783, metadata !DIExpression()), !dbg !26488793
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %8, metadata !26494766, metadata !DIExpression()), !dbg !26494823
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %17, metadata !26502101, metadata !DIExpression()), !dbg !26502111
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %8, metadata !26508252, metadata !DIExpression()), !dbg !26508309
llvm.dbg.declare has larger fragment size than alloca size 
  call void @llvm.dbg.declare(metadata ptr %18, metadata !26516098, metadata !DIExpression()), !dbg !26516124
LLVM ERROR: Broken module found, compilation aborted!
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: /tmp/gecko/clang/bin/ld.lld @response.txt
 #0 0x00007f765d87c8a7 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x28398a7)
 #1 0x00007f765d87cd8b SignalHandler(int) Signals.cpp:0:0
 #2 0x00007f765ab7bfd0 (/lib/x86_64-linux-gnu/libc.so.6+0x3bfd0)
 #3 0x00007f765abcad3c __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
 #4 0x00007f765ab7bf32 raise ./signal/../sysdeps/posix/raise.c:27:6
 #5 0x00007f765ab66472 abort ./stdlib/abort.c:81:7
 #6 0x00007f765d818698 llvm::report_fatal_error(llvm::Twine const&, bool) (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x27d5698)
 #7 0x00007f765cb90bd5 (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x1b4dbd5)
 #8 0x00007f765d96b097 (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x2928097)
 #9 0x00007f765e47c6ed llvm::detail::PassModel<llvm::Module, llvm::VerifierPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) LTOBackend.cpp:0:0
#10 0x00007f765d555bdc llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x2512bdc)
#11 0x00007f765e477af4 llvm::lto::opt(llvm::lto::Config const&, llvm::TargetMachine*, unsigned int, llvm::Module&, bool, llvm::ModuleSummaryIndex*, llvm::ModuleSummaryIndex const*, std::vector<unsigned char, std::allocator<unsigned char>> const&) (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x3434af4)
#12 0x00007f765e479594 llvm::lto::backend(llvm::lto::Config const&, std::function<llvm::Expected<std::unique_ptr<llvm::CachedFileStream, std::default_delete<llvm::CachedFileStream>>> (unsigned int, llvm::Twine const&)>, unsigned int, llvm::Module&, llvm::ModuleSummaryIndex&) (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x3436594)
#13 0x00007f765e46f30f llvm::lto::LTO::runRegularLTO(std::function<llvm::Expected<std::unique_ptr<llvm::CachedFileStream, std::default_delete<llvm::CachedFileStream>>> (unsigned int, llvm::Twine const&)>) (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x342c30f)
#14 0x00007f765e46eb73 llvm::lto::LTO::run(std::function<llvm::Expected<std::unique_ptr<llvm::CachedFileStream, std::default_delete<llvm::CachedFileStream>>> (unsigned int, llvm::Twine const&)>, std::function<llvm::Expected<std::function<llvm::Expected<std::unique_ptr<llvm::CachedFileStream, std::default_delete<llvm::CachedFileStream>>> (unsigned int, llvm::Twine const&)>> (unsigned int, llvm::StringRef, llvm::Twine const&)>) (/tmp/gecko/clang/bin/../lib/libLLVM-18git.so+0x342bb73)
#15 0x00005582ad0e6860 lld::elf::BitcodeCompiler::compile() (/tmp/gecko/clang/bin/ld.lld+0x25d860)
#16 0x00005582ad040549 lld::elf::LinkerDriver::link(llvm::opt::InputArgList&) (/tmp/gecko/clang/bin/ld.lld+0x1b7549)
#17 0x00005582ad02fa34 lld::elf::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>) (/tmp/gecko/clang/bin/ld.lld+0x1a6a34)
#18 0x00005582ad02dfe0 lld::elf::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, bool, bool) (/tmp/gecko/clang/bin/ld.lld+0x1a4fe0)
#19 0x00005582acf72845 lld::unsafeLldMain(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, llvm::ArrayRef<lld::DriverDef>, bool) (/tmp/gecko/clang/bin/ld.lld+0xe9845)
#20 0x00005582acf70182 lld_main(int, char**, llvm::ToolContext const&) (/tmp/gecko/clang/bin/ld.lld+0xe7182)
#21 0x00005582acf7004e main (/tmp/gecko/clang/bin/ld.lld+0xe704e)
#22 0x00007f765ab671ca __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:74:3
#23 0x00007f765ab67285 call_init ./csu/../csu/libc-start.c:128:20
#24 0x00007f765ab67285 __libc_start_main ./csu/../csu/libc-start.c:347:5
#25 0x00005582acf71b72 _start (/tmp/gecko/clang/bin/ld.lld+0xe8b72)
```

Cc: @nikic 

(It's also unfortunate that it doesn't tell what specific module is broken)
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzcWV1P6zrW_jXmxqJy7CR2LrgoH9W7X4HYAnRuK8d2Ug-u3WM7UObXj5yU0pQeDruDZqMjlZL6Y_l51rPsrKzwEHRrlToDxTkoLk94FxfOn7WGW6m75Unt5MvZw0IHKLW0ANMIF3y1UhbWqnFeQcZyJDmWNSZUSJrlsqKFyKpKFlWFq7yQuKaZqiYAXQI0Hb7vH-4A2Vyfwkv3bI3jEi5iXIXUgWcAz6TXT2rSOtcaNRFuCfCs0UalHoBnmXq4feAXj9fN8n7R3F_OqtvpjNLQrtX_nzbtnw8Az560egZk1oUVIJdhwb227QYGZp1tnI-d5VGZF2i4bxXAFzAmrjrAmfaqcWuAq1eYV-vouYivP-86C8gUghIJCb1aeUDOoZETYyQEOfIqrJwNahLXEZRol336OXz6n8Y8LSeybidSCcO9ggseBjweNp63S2UjDPrfCsYFt5Ab4wQfGgYDEApuDHxyul953x7AbKkilzxyuIoeAlywxHTbCHCGy7zIS5rvt1_-uFqvvApBOwswS95In4vUJ-t2O5WS7LeRyegBNiVG-F3759iUGBH6raQpWYazI8mwjLLvJQ0t8vJINrTI6e8LtEPSsCwn79o_R4ZleVV8L2kYo4wcyYbRinwraaqcluVxZKqc4d9H5pA0BcIZOm7XpKnZt9o1BWK4wEeSYQRVv0-aQ2yyElXHnQFFVmY4H8BcX_9xA6_u7m5TagTPvXtUFi6d7IyCjeusTJOFW6604VE7C3ntfFQS4I22P6-vpvdXMHT1UkfIYd21KS9xPsLo9nKrVsdFV2-yqsR78-905d2_lIgAz3QInQoAzyC3EmorTCeTJxUUnocFrLl4TAmR2mR295GLRyi75Wqb2qEJQNVP71rPl5D7tkuKhD5rwrO4XCUgSjw6gGfCcNsCPKu1TVAOp1GDaAATBNEaIYRoQ8tCMioYp7CnQaaATMNLGC5-em1jD-whIQWYvQ3y_HnuQvSKLwHuzwltI8AV7NX6EN5kkjDqevhOwp1mrNVxEhzA52iNGakYp9vcMUHO9iFLVsN73Vpu_o9baZQHmG0QDM1hIlbJl6j_2xrCu4Z4TetGog3mAdKalfMyPzXaduvT1nZDh5gENyl7eCRNGYEjY5uCSyLgfL6KC6-4nD9qY-Z6uTIqCThEX3KBXUUD8Gx32EQAMs1zQKa0fLOfv8NMMPRcB9XbCT3fV8eGlyDVKkXeygW9BnjWj-wtYwrIdMdwMTZcljnFw8YYDEc5-KRv6i2wLGF7s1COdclYWbGdUBo20LzhkZu58t75URA9PGuroHA2xE0Q1c6ZL4oiKouyYiOh6C5aUVeolsUXLJXVuaxlMVqKjRxTlTWq6FewqjBD1XhvVLtLqZyKUskdDaSKXJvNjuYh3DipDCAXbyNu-mMyuf-t7Q_ldaOVTzPGPT-9Cso_KTm13LwEtdc9tOpwwy1vlT-0ELnqP32AdHYUEa9QymOMplkVvH64PefiUVn5_gRIJ8n49CuKopZil15y0V8v8724fkFAFRmupdgGVPJQthdQlDf5DkAT3XDhVnFEaNtx4Wyj29HG3tn0KcWIN1wstFUAT1NvZ_s6ihxuIrujR04aTof33ffdcsn9yw8r1Xpj8aMhr8D6gSHKYdyTEtEld2_BiAX3oyFDDnRoVC_zDuGvkIbkJOdNPpIG70lTFdVBaephB3xani3FprMi3aFGYXe1XimRkiVysR3YWf1np-arOI7QCy4WSs60Ufeb5GDHuFQN70ycS2VUVB_P22ycK9gXm_4qPPbvIFW_Nz4dUB8H0tfpWBbVWEcy1rFsCGoO6Xj9cLs9PO5U2xnuUxNm_yzBvsbNWBDUjNyc77lZ1ZT8nZv_cc49Znf_E4j_3aT76LVt71TzP4zQuqZkFKGvKXhRMMwlUiUrETRm4yllmuHiXEfhpLroH2BTUpAah8dZNTwffwLf8Fy4ue1LVqIRknKMJEdFXh1Acq3to_KXXj-9wjDaPo5uNCkv6C9-2FUXp7691r9wW9xBmdW0yKsRSjpGiRtO8k-jVP6G63ESNvWev6QYIBfpRv6WGnxW9F24vORkfM6zPbiyUYfkfefCD2HtRuv75_CP-l4TqM8_Zo3o5Y0ax0y1S080FLO8eKPX2cAbdW3kr3n9eHoHF9jCGaLhMjVeHe0EVbG82PUBRns-QBnDyQfz5cB6c-4MyeT0XXr64Jy5cDaqdfzF_HEXFc0YHqHK9lGhXMGE6FcNo1yNDO8VUEqaCQ7nc6NrMQ-R-zgX3JiefF9EEKF7X5rYlD4OTZosAJnSHJApeVuU7C-KWdFXH-fa6ri_znCZjJ_2xvvKRYYZIFP89iCI80NGR0wOkThonOQUkGnxZrvYc39WUwwHq78oAKvpjrLjd5_D94Xoa4I5svpRCzh6V4rZjwgwDZCb4ODOS1sYFzxCHaF0KgxvpqMyBj6n5rBSQjdavBZQdYB1X1EFuDqRZ0RWpOIn6iwrK5r1b_xOFmcIC1HQJpeE0UYgWaqyQIhUNc1qJjNyos8wSs_fGcYZQQhPSCVwIxEReYMLiRDIkVpybSZ9Kdn59qSvop6VrMLVieG1MqF_046xVc-w7wQYg-LyxJ_19de6awPIkdEhhjcrUUejzv6LCjF8XigL604bqW37-nIbPuu4gE1nDLx-uD3pvDk7vkzcc_xPAAAA___xSr8L">