<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/122024>122024</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [flang][debug] Unexpected Assertion `!attr.getIsRecSelf() && "unbound DI recursive self reference"' failure
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            flang
      </td>
    </tr>

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

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

<pre>
    flang crashes with -g on the following example.

`module m1
  type t1
 type(t2),pointer :: x1
  end type
  type t2
    type(t3),pointer :: x2
 end type
  type t3
    type(t1),pointer :: x3
  end type
end

program test
  use m1
  type(t1),pointer :: foo
  allocate(foo)
 allocate(foo%x1)
  allocate(foo%x1%x2)
  allocate(foo%x1%x2%x3)
  call sub1(foo%x1)
  print *,'done'
end program

subroutine sub1(bar)
  use m1
  type(t2) :: bar
end subroutine
`

`$ flang    -g /proj/ta/tests/fujitsu/tests/0658/0658_0011.f90
flang: /proj/build/llvm/Linux_x86_64/mlir/lib/Target/LLVMIR/DebugTranslation.cpp:276: llvm::DINode* mlir::LLVM::detail::DebugTranslation::translateRecursive(mlir::LLVM::DIRecursiveTypeAttrInterface): Assertion `!attr.getIsRecSelf() && "u
nbound DI recursive self reference"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: /proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang -fc1 -triple x86_64-unknown-linux-gnu -emit-obj -fcolor-diagnostics -mrelocation-model pic -pic-level 2 -pic-is-pie -target-cpu x86-64 -debug-info-kind=standalone -resource-dir /proj/nv/llvm/Linux_x86_64/llvm-4092/lib/clang/20 -mframe-pointer=all -o /tmp/0658_0011-954c9a.o -x f95-cpp-input /proj/ta/tests/fujitsu/tests/0658/0658_0011.f90
 #0 0x00005609b8070a8b llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x447ba8b)
 #1 0x00005609b806e2c4 SignalHandler(int) Signals.cpp:0:0
 #2 0x00007f7cb823c4b0 (/lib/x86_64-linux-gnu/libc.so.6+0x3c4b0)
 #3 0x00007f7cb8290ffb __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
 #4 0x00007f7cb8290ffb __pthread_kill_internal ./nptl/pthread_kill.c:78:10
 #5 0x00007f7cb8290ffb pthread_kill ./nptl/pthread_kill.c:89:10
 #6 0x00007f7cb823c406 raise ./signal/../sysdeps/posix/raise.c:27:6
 #7 0x00007f7cb822287c abort ./stdlib/abort.c:81:7
 #8 0x00007f7cb822279b _nl_load_domain ./intl/loadmsgcat.c:1177:9
 #9 0x00007f7cb8233b86 (/lib/x86_64-linux-gnu/libc.so.6+0x33b86)
#10 0x00005609bae3c289 mlir::LLVM::detail::DebugTranslation::translateRecursive(mlir::LLVM::DIRecursiveTypeAttrInterface) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7247289)
#11 0x00005609bae38952 mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243952)
#12 0x00005609bae39c14 mlir::LLVM::detail::DebugTranslation::translateImpl(mlir::LLVM::DIDerivedTypeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7244c14)
#13 0x00005609bae38c7b mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243c7b)
#14 0x00005609bae39c14 mlir::LLVM::detail::DebugTranslation::translateImpl(mlir::LLVM::DIDerivedTypeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7244c14)
#15 0x00005609bae38c7b mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243c7b)
#16 0x00005609bae3add0 mlir::LLVM::detail::DebugTranslation::getMDTupleOrNull(llvm::ArrayRef<mlir::LLVM::DINodeAttr>) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7245dd0)
#17 0x00005609bae3bbab mlir::LLVM::detail::DebugTranslation::translateImpl(mlir::LLVM::DICompositeTypeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7246bab)
#18 0x00005609bae3bf9f mlir::LLVM::detail::DebugTranslation::translateRecursive(mlir::LLVM::DIRecursiveTypeAttrInterface) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7246f9f)
#19 0x00005609bae38952 mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243952)
#20 0x00005609bae39c14 mlir::LLVM::detail::DebugTranslation::translateImpl(mlir::LLVM::DIDerivedTypeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7244c14)
#21 0x00005609bae38c7b mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243c7b)
#22 0x00005609bae39c14 mlir::LLVM::detail::DebugTranslation::translateImpl(mlir::LLVM::DIDerivedTypeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7244c14)
#23 0x00005609bae38c7b mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243c7b)
#24 0x00005609bae3add0 mlir::LLVM::detail::DebugTranslation::getMDTupleOrNull(llvm::ArrayRef<mlir::LLVM::DINodeAttr>) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7245dd0)
#25 0x00005609bae3bbab mlir::LLVM::detail::DebugTranslation::translateImpl(mlir::LLVM::DICompositeTypeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7246bab)
#26 0x00005609bae3bf9f mlir::LLVM::detail::DebugTranslation::translateRecursive(mlir::LLVM::DIRecursiveTypeAttrInterface) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7246f9f)
#27 0x00005609bae38952 mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243952)
#28 0x00005609bae39a2b mlir::LLVM::detail::DebugTranslation::translateImpl(mlir::LLVM::DISubroutineTypeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7244a2b)
#29 0x00005609bae38e63 mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243e63)
#30 0x00005609bae3b0e6 mlir::LLVM::detail::DebugTranslation::translateImpl(mlir::LLVM::DISubprogramAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x72460e6)
#31 0x00005609bae3c05f mlir::LLVM::detail::DebugTranslation::translateRecursive(mlir::LLVM::DIRecursiveTypeAttrInterface) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x724705f)
#32 0x00005609bae38952 mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::DINodeAttr) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7243952)
#33 0x00005609bae3c342 mlir::LLVM::detail::DebugTranslation::translate(mlir::LLVM::LLVMFuncOp, llvm::Function&) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x7247342)
#34 0x00005609bae2f1c6 mlir::LLVM::ModuleTranslation::convertFunctionSignatures() (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x723a1c6)
#35 0x00005609bae363c4 mlir::translateModuleToLLVMIR(mlir::Operation*, llvm::LLVMContext&, llvm::StringRef, bool) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x72413c4)
#36 0x00005609b81e16ba Fortran::frontend::CodeGenAction::generateLLVMIR() (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x45ec6ba)
#37 0x00005609b81e4be0 Fortran::frontend::CodeGenAction::executeAction() (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x45efbe0)
#38 0x00005609b80b6f3d Fortran::frontend::FrontendAction::execute() (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x44c1f3d)
#39 0x00005609b8096c9b Fortran::frontend::CompilerInstance::executeAction(Fortran::frontend::FrontendAction&) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x44a1c9b)
#40 0x00005609b80be54e Fortran::frontend::executeCompilerInvocation(Fortran::frontend::CompilerInstance*) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x44c954e)
#41 0x00005609b79978cd fc1_main(llvm::ArrayRef<char const*>, char const*) (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x3da28cd)
#42 0x00005609b7997279 main (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x3da2279)
#43 0x00007f7cb8223a90 __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:74:3
#44 0x00007f7cb8223b49 call_init ./csu/../csu/libc-start.c:128:20
#45 0x00007f7cb8223b49 __libc_start_main ./csu/../csu/libc-start.c:347:5
#46 0x00005609b79956ee _start (/proj/nv/llvm/Linux_x86_64/llvm-4092/bin/flang+0x3da06ee)
flang-20: error: unable to execute command: Aborted (core dumped)
flang-20: error: flang frontend command failed due to signal (use -v to see invocation)
flang version 20.0.0git (https://github.com/llvm/llvm-project 4c4364869c490600b4e33606d481fb27b438d090)
`
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzcWltv2zgW_jXMCyGDInV9yIMmGe8GmBva7r4aFHXksKVIgaJS998vSMmRrbqZaeti0QwmjUwdfjwfz4UnPuTDIPca4Balv6D0_oaP7tHY2_cSlP-5qU3z6bZVXO-xsHx4hAF_lO4RR3tsNHaPgFujlPko9R7DgXe9gg0ilf8_I51pRgW4ixGpMHafesAuPPtHRAtHES0RveuN1A4sRqxCrMKHSR50Mwkuk2l4xs_z2eX5QezCdLaaHl-eztbLg24mTr01e8s77GBwQWgczuh9GbQ1JkhxpYzgzkv6IVr60fVgeojnN5dfpQf69-_TAzsKCa4UHsY6vrBAb6V2GNEK0TtE88ZoQDSfSOOZ70R-GGtrRic1HLFqbo8wFzbC63ik7yUnyAVl8pFnZ0E0wZOjYezdC9Ftb817RLeO-39gcAOi23Z8L90wnoyQLC3mXztC4njTlh41YPm1F6B6lKpBdKvUU4fo9jepx8PuUGS7LEF02ylp_UtZI7p9x-0enBf67b-_P7xBdHsP9bh_Z7keFHfS6I3oe8Qqmmd-kQAZuN4__GEaQLTCATCMeZDpqQHHpZolV4jTqJsH4A2I0Q7yyW_mJaj7h2eJd596qJyzD97lWi7Am4VVuBoGsB4ahw2OuXN2swf3MLwB8RZUi2gRrEQzRDOMKB0RqXRtRt3g-wdsjwvgAVSLLbRgQXt4imiOWy4VND7e__rt1-rtr964nXSY43rcYwu9sQ47gx-d6wevNN0iut1L9zjWG2G6xRT-V-StBMJvuhyGEbxtMdcNllqosYGQbUISwjUXH5zlIuSat46LD7gZO28ORCqyweG_v-Zg5XY_dqDdcO4M-umLnhC0SUhJvc9I7b0uOGbUihhHzspeAZ6ko1F_0OajjpSHiPZ6xBF00kWmfu_ljTI2aiTfazM4KQYcdRZCyEqjo840oHAvBY56KSIFT6AwnT7IIeol4MgFT4xEP_oloyzBUeMdJ5K6NdEHqRvE7gfHdcOV0YAjC4MZrYCokfbr-U7uL0Lw0C0lOOpayzuI5oSG2L3PJpHx0K7rTyMvKtNElHxjcHTAbZlGou8jqfvRfXc0Y0QZweRACCFpRsq6IDnhRX0SeMOnYXr4y6e04BXvbIiFYhGy_OPODM4C74LT32Gp3RQCxff4BqK_kEOS5DUv6jknIsric40zoCLBb-Vec_VvrhsFFtFiVmAaHua0QsLPhEJnlLzNRV1QJpKazPpO1ppd8dkFpxdiM5hNFhQLUxa12DlgSdq2xrtd7x4t8Gb3QSq1k_4o92ETPBVv_K70Tvk9OhHbCMSqJEGsyrMZPPkn4N6TNFcvwuYFYlV83IT0EuzpnBexivIUK_tsQ0mGLZcDBJAhWALR7SZ8-jQ00HvX7M0gD4hug2SApTli1ZF4fo5KaZELzGufAwOOayZrhaFJq9jTnKcX6-l5WeOdVjtleLNrTMflZAapA0c_3A17wSesOM69MkcTlyuKrC6yr_QZP2XyGe_JZ8HHgQlalP_nE-4qMZvTJKdFuRCNV0SLMqXfS_SL_Hyp4GldkQ0rU7qwoSs2pYiT72Xz0PXqi4zuwconaI72uiKxRMTJQoytzSTy-qcyk8jrhU3yWs2UviozZSs2vGnIN7LZg_v9_t3YK_jT_jEqdValVNbyT2-gRezub5iyX69INm0aspDNV2Trmn-36V70yTvT-SPWwQ_wyqzmJ3Ys1tTasn0lh1nWlu1CtHxNhxld1yCvJUvSz2qOnzlL0tdac9BXVXPQdc3xmg8zuq5DXs9hRtdFyWs9zOi6IPm5D7N1DVJy-mM98u3zN-8_IlFyeuKSn5UdkLGfylKQsWc2bF121ASyH22pufNy7cRBYPlKh62rDkHS15I4cpIuiYOtC5KfOnGwdRUiWPKj2Pin7ajFnz2idydftfuxgEKzaxqNJSc0V-UJbWNxOep-D13mz7gJo5_AuqOq4et1N1oYnnte11Ca8VichNS6zMiYOC19n_d71tkcu4snu_9nD3aiEXqyJ7vuhe-MdnBwc-9ieffWWan3vsqid7g2Rl3RLjETSxHMzsqNIoY4qzneGuu5Tbq01iupm-nTnWngX6ArcVouas8RntlfrQGTgshqviibr5RNaiBfqSwcQIwO5qGr6trWsJSorDhvFtVZy5qXdN3Ony4oe001ExG3rFnULM_VLDNR1i9vaddLBfZBD45rAZd39Z_zvF7KSRIei3IpW5JVg7GGNIGXqM0kFoZPc2P3ZUKf7YgP9KtZq0wTWCidnfF5WeaFaHAr4l3H_dTLf6aJR26xMHpwXjX_V9kdPh-7krqs4bQQi3MldK0uzUscOl_XWo7mS68nWTVCKeMlwbudkrXYDY5btxNcqd1z602EVvWqLTj3HC9N2jwiVuUJYhWbV0zWK9ZJGe7n7KSWbr3I9OiRo4A8dfpogVhFyYyYXkI843BJ_YvILMkRq9IZOFvZIs0A8AR5LWuQDGZfDcMRJYhVGKw1_jDEo-a1AuwMniMNC9N1PMQRrmpjHTReFWEshAsg0LyANt3hOIbiEWq-xIKbMSw09X496DgAjp7CGACWJ7H9vAJ-AjtIozElG7Ihexk25utuu-BEJCxLiqwUSUkyQuoEGMtI1iRF3NY0rxNWNKQ8HhQZuWluWVOykt_AbZyzjJYpYeXN423WtABxQpM4EWVJ85yCYE1b8jytRSbiG3lLCU1JTApCYsLKTUlo3rZNm3MKJOMNSgh0XKqN13Bj7P4m3MS5jSklNLlRvAY1hKuClM6GpCi9v7G3gVI97geUECUHNywQTjoV7hdOM9J7lP4SbrCg9B7_R8OhB-EN-Q2Xlb7qptJo4Wa06vbbbyPN2_B0S_8XAAD__zoGWTE">