<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/128838>128838</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Assertion `!NodePtr->isKnownSentinel()' failed.
        </td>
    </tr>

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

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

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

<pre>
    To reproduce run opt with the test below, -passes=loop-vectorize
```
; ModuleID = './reduced.ll'
source_filename = "./reduced.ll"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
target triple = "x86_64-unknown-linux-gnu"

define void @wombat() gc "statepoint-example" personality ptr null {
bb:
  %invoke = invoke i32 null(ptr addrspace(1) null, i32 0, i32 0, i32 0)
          to label %bb1 unwind label %bb5

bb1:                                              ; preds = %bb1, %bb
  %phi = phi i64 [ %add, %bb1 ], [ 0, %bb ]
  %phi2 = phi i32 [ %add3, %bb1 ], [ 0, %bb ]
  %add = add i64 %phi, 1
  %sitofp = sitofp i32 %phi2 to double
  store double %sitofp, ptr addrspace(1) null, align 8
 %add3 = add i32 %phi2, %invoke
  %icmp = icmp ult i64 %phi, 161
  br i1 %icmp, label %bb1, label %bb4

bb4: ; preds = %bb1
  ret void

bb5: ; preds = %bb
  %landingpad = landingpad { ptr, i32 }
 cleanup
  ret void
}
```
Reproducer: https://godbolt.org/z/3do96adnn

Stack dump:
```
opt: /root/llvm-project/llvm/include/llvm/ADT/ilist_iterator.h:322: llvm::ilist_iterator_w_bits<OptionsT, IsReverse, IsConst>::reference llvm::ilist_iterator_w_bits<OptionsT, IsReverse, IsConst>::operator*() const [with OptionsT = llvm::ilist_detail::node_options<llvm::Instruction, true, false, void, true, llvm::BasicBlock>; bool IsReverse = false; bool IsConst = false; llvm::ilist_iterator_w_bits<OptionsT, IsReverse, IsConst>::reference = llvm::Instruction&]: Assertion `!NodePtr->isKnownSentinel()' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/opt -o /app/output.s -S -passes=loop-vectorize <source>
1.      Running pass "function(loop-vectorize<no-interleave-forced-only;no-vectorize-forced-only;>)" on module "<source>"
2.      Running pass "loop-vectorize<no-interleave-forced-only;no-vectorize-forced-only;>" on function "wombat"
 #0 0x0000000005452b98 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5452b98)
 #1 0x0000000005450554 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #2 0x00007b16e6242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #3 0x00007b16e62969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #4 0x00007b16e6242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #5 0x00007b16e62287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #6 0x00007b16e622871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #7 0x00007b16e6239e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #8 0x00000000044f6c23 (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x44f6c23)
 #9 0x000000000450ebb3 llvm::VPTransformState::get(llvm::VPValue*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x450ebb3)
#10 0x0000000004543138 llvm::VPInstruction::generate(llvm::VPTransformState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4543138)
#11 0x0000000004544ba4 llvm::VPInstruction::execute(llvm::VPTransformState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4544ba4)
#12 0x00000000044f82e7 llvm::VPBasicBlock::executeRecipes(llvm::VPTransformState*, llvm::BasicBlock*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x44f82e7)
#13 0x00000000045038f9 llvm::VPIRBasicBlock::execute(llvm::VPTransformState*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x45038f9)
#14 0x0000000004510249 llvm::VPlan::execute(llvm::VPTransformState*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4510249)
#15 0x00000000043cccce llvm::LoopVectorizationPlanner::executePlan(llvm::ElementCount, unsigned int, llvm::VPlan&, llvm::InnerLoopVectorizer&, llvm::DominatorTree*, bool, llvm::DenseMap<llvm::SCEV const*, llvm::Value*, llvm::DenseMapInfo<llvm::SCEV const*, void>, llvm::detail::DenseMapPair<llvm::SCEV const*, llvm::Value*>> const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x43cccce)
#16 0x00000000043e15d8 llvm::LoopVectorizePass::processLoop(llvm::Loop*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x43e15d8)
#17 0x00000000043e2f49 llvm::LoopVectorizePass::runImpl(llvm::Function&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x43e2f49)
#18 0x00000000043e35c3 llvm::LoopVectorizePass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x43e35c3)
#19 0x000000000318aaae llvm::detail::PassModel<llvm::Function, llvm::LoopVectorizePass, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x318aaae)
#20 0x000000000524cd90 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x524cd90)
#21 0x0000000000e6f54e llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0xe6f54e)
#22 0x000000000524b6ab llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x524b6ab)
#23 0x0000000000e6e83e llvm::detail::PassModel<llvm::Module, llvm::ModuleToFunctionPassAdaptor, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0xe6e83e)
#24 0x000000000524b0b0 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x524b0b0)
#25 0x0000000000935a3a llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::ArrayRef<std::function<void (llvm::PassBuilder&)>>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x935a3a)
#26 0x00000000009290ac optMain (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x9290ac)
#27 0x00007b16e6229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#28 0x00007b16e6229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#29 0x0000000000920985 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x920985)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzcWl1z4ygW_TXkhbJLBkmWHvKgOPFs10zvpDqpvLqQdO2wwaAClI_59VuAFH0k6e3MeLam2pXEElwO514OcJHCjOEHCXCOkguUXJ6x1t4rfX7L7AuT7FK1pTVnpapfzm8V1tBoVbcVYN1KrBqLn7i9x_YesAVjcQlCPSGywYuGGQMG0UuhVLN4hMoqzf8AFBUojbqfqED0An9VdSvgyyVG9BIjsl4istXgOqmXQiCyRlFhVKsr2O25AMmO0JmSuSlBUWGZPoDFNbNMsBfV2t4YFkdEC1g0ZB0hWlDi_7jb1fTWXaWx_7PgrxcrkiFarEi22GdRdyV9Udo3T-PFjS_mrnjRkL4i634pCXVkQtVq3ohXn56zdJfGi1Y-SPUkF4LL9nlxkG1ogqKihj2XgB8VrzGKoyd1LJlFJEMkx4fKQRjLLDSKS7uAZ3ZsBCBCcAPaKMkEty-4sRrLVgiM1hcoKsoSUQeNMSIJl4_qIdDpLjkl3hqRzDVkda1NwypAJFu5XkPdxttF713kHrv_WIUFK0G4zspyhVv5xGU9LkuCp2XpRgZ_6uMU1WioTRdP14Nj4q96F5t77qvdN09jjJILV8zq-tV0hVFy6e-Si-CLL_alAwoZYCgZwdDP4LC69jDu27Px0M501ZsYbtW-8Vbdpe-v42AVrlVbCvDmxioNXcHQ1sF9d_CY4AeJMwfR-TCQGvrqHAjCeFVMdQzc_EUr7NyNNDhSasxXfQNXMZbB7D7uJeDm3_uj6iA1WD8TeuvkA-ueqmCy5vLQsBDy8e36wgWoVy1a-_GpBDDZNm_68rXjlexbvzJqx-De2sa4OUW2iGwPqi6VsEulD4hs_0BkS2uVp6yWMvC-sax6wHV7bMI8HAOrxnqfyFYrZRHZCvF4XDRa_Qeq_haRLZeVaGsYCorLW1csuLE7bkEzq_Ty3i9CbknC3owWiBZTm93TruTWILr5vbFcSXPrQvLFfINH0AbCzUZJYxG9CgAa9qBBVnBKUNWEpogU3eJWuXo3j_ye0wOFcZz1W4NlXIQSqWrYqWCN6GYw_SKN1W3lKhwBq1tPZM9EYOTHelQxtLxghlcXQlUPnu4FLpUSgzueUoAZ6jaB_bjmbxmCaTgmPqZu0aEFLowB7YqwkxhZ_VvVcG31AtErbn51284NSMsliBB5RNZ4z7iAeomi4vq3q-LmCpu2PHKLGS7bg8sLlLZuIZopn9v7tlxW6jgIc6ZfbkwLBpEtZrLGnYx9RlFpZu5xyaoHq1kFy3cmSrREUX6t1UGzI2b60B5BusD5-eJmDtlW6thwAXoBz41QGrQrE0weFqwPg1lY3coHRLYll6EhXigHwZrG3be2ae3S4MXNh4kNRnQTshQ3JlGxcsy-tVJyecCujduY963shiKbpUV0I9WCSwtaAHuExV7pCuqFkuIF0QupBtNZlevNjRDBSuKjT6VcTxM2PnMg7xE6KQtPoXfRofepCQmbCo1w9Bz1nyROSJlnI62aFxMurjWX1g_1rQ471WCk2dNOGauBHZ2g3WotrVsdvFT_0pgjchE9d7S6nAURupqRjpIkxjf8IJn4F5O1cOCZ57DBhh-43Kud9YtWv4IUjl5oYZZV46Qb-d_QAek6WJerFFISk4REnTeCl4hsu4xwlAm6impp1DL1nH2TgTGdAuZpvq9wY-81sHr3wF3W9xl0335Aj-d043WKD8a791na8TodgJMpMMnWe4pZ6daVT8H6hgNs-gZ2VX4acFUOgOspIM0hTz8H6JsMgNlYYXG8TytCTyXnDm7oLJ90lkRQlnQ0B--ubzWTZq_08cadIkLpAexkEt5d3zHhNkWvcrfBnXAGdqQCZTcBoynlmK5oNqE83uQ6vtLtpDAjPXPNLR8nZO15DaxXM9ZxyeLvs4ZnqNr_N2lHayBNZlLMCKwnpMeZz4jzN6h443bx71IvPsyiwhp5Os073oNXdKZ5mu3z6VB8-8Cv_-3QKWXveA2s4ynrVUTiKWvBPiWc05L1dAayyYQsrapqchr4TanmrssdmAN25KU_Kw38vUNjH64EuHxuo9qwvbbSP6qqcbfdzoMR8oFx8itBj7t2Ls5sLtWRS5d032qYLmgTK5AGvrJmcn642VzdhUPJG2mPl8e3KF_kXn0fyScOLqcaNx8fanqoa8b1p0m5Q8PVyOh0sggDP8gincoCVkmdfSALuGamy_8arSowxtVO9BAKTkvYUxoIr2eEyX4y6T4grFv55diICdnta65_0hU7UBoIZzPCNKnoDxH-mOxYM4Vk4sVw85VJdoCp1F4bOaGe2EnnxuDkJGmhq4wxBh9MDOfjV1WDeJ_qxLm3wflTvr-ewf_RQe3C9hpUMj2Nkbiq82hE0gfyewR_4lh10RhiNUnmIkj3SXwKAf5tMf6JxyYEfxgaMpNxmbJyxDG8XbpVPR8X8qJmjVX6fW9Dg0_52jX5G1TonBlcpTMVQkY_p8Let80PBuhPROAjEf1zwhriNkQ1ngsoKn9kHXwvlj9LiLooDDGapPdRThNG2Yiibr1srnkDgsvpQeTGai4P32D_nuzeOHvrX4l-ZdW9xyneq_2Nl5rpF5dFh6xrbqWU-N0_st1y8Q7IX6r-wJ1Ca_biSsej42Mi2gOXb9fkwd7YOpS9Ph2mm_BydxxGh3XRclF3Z5j8vZVeNXZn3eHF3wUvfuWy_p7VHWi-56B7u_7w87nvk0kvaGtQXjpVHskjVmHV2K-My5P16VGHPmdP-EjuMqPPPTLMJ-lDNgeEOMK7nWuzM5ZpuzsO7vxwFxCPushncYryLMEB_HRhcqChy_6diwXtz89Qh_8ECc-BES3wzZdfbq5-uUNRsem6xBpsqyU4ueMVzccvOs_qc1rnNGdncL5ax1GSxOuEnN2fV5DGZJ9nJUlilicJjSFiLE_2MSTxiq3P-DmJSBIRkkZrkiRkmWb5vizjNI_rak-rGsURHBkXSzcDlkofzvwrp_MVyTKanfl3zsb_9wshEp6wr0WEoOTyTJ_7t1VlezAojgQ31gwwllsB53_hZdpZq8X5n39h1jnweE7-GwAA___yf-m6">