<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/98660>98660</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Assertion `(VF.isScalar() || Def->isLiveIn() || hasVectorValue(Def, Part) || (hasScalarValue(Def, VPIteration(Part, 0)) && Data.PerPartScalars[Def][Part].size() == 1)) && "Trying to access a single scalar per part but has multiple scalars " "per part."' 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 opt with -passes loop-vectorize with the following test:
```
; 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(i64 %arg) #0 gc "statepoint-example" {
bb:
  br label %bb1

bb1: ; preds = %bb3, %bb
  %phi = phi i64 [ 0, %bb ], [ %add, %bb3 ]
  br i1 false, label %bb2, label %bb3

bb2: ; preds = %bb1
  %or = or disjoint i64 %phi, 0
  %getelementptr = getelementptr i32, ptr addrspace(1) null, i64 %or
  store i32 0, ptr addrspace(1) %getelementptr, align 4
  br label %bb3

bb3: ; preds = %bb2, %bb1
  %add = add i64 %phi, 1
  %icmp = icmp ult i64 %phi, %arg
  br i1 %icmp, label %bb1, label %bb4

bb4: ; preds = %bb3
  %phi5 = phi i64 [ %phi, %bb3 ]
  ret void
}

attributes #0 = { "target-features"="+prfchw,-cldemote,+avx,+aes,+sahf,+pclmul,-xop,+crc32,+xsaves,-avx512fp16,-usermsr,-sm4,-egpr,+sse4.1,-avx512ifma,+xsave,+sse4.2,-tsxldtrk,-sm3,-ptwrite,-widekl,+invpcid,+64bit,+xsavec,-avx10.1-512,-avx512vpopcntdq,+cmov,-avx512vp2intersect,+avx512cd,+movbe,-avxvnniint8,-ccmp,-amx-int8,-kl,-avx10.1-256,+evex512,-avxvnni,+rtm,+adx,+avx2,-hreset,-movdiri,-serialize,-sha512,-vpclmulqdq,+avx512vl,-uintr,-cf,+clflushopt,-raoint,-cmpccxadd,+bmi,-amx-tile,+sse,-gfni,-avxvnniint16,-amx-fp16,-ndd,+xsaveopt,+rdrnd,+avx512f,-amx-bf16,-avx512bf16,-avx512vnni,-push2pop2,+cx8,+avx512bw,+sse3,+pku,+fsgsbase,-clzero,-mwaitx,-lwp,+lzcnt,-sha,-movdir64b,-ppx,-wbnoinvd,-enqcmd,-avxneconvert,-tbm,-pconfig,-amx-complex,+ssse3,+cx16,+bmi2,+fma,+popcnt,-avxifma,+f16c,-avx512bitalg,-rdpru,+clwb,+mmx,+sse2,+rdseed,-avx512vbmi2,-prefetchi,-rdpid,-fma4,-avx512vbmi,-shstk,-vaes,-waitpkg,-sgx,+fxsr,+avx512dq,-sse4a,-avx512f" }
```
Reproducer:
https://godbolt.org/z/Ghz3147nj

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 0x0000000004e9b948 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4e9b948)
 #1 0x0000000004e990bc SignalHandler(int) Signals.cpp:0:0
 #2 0x000070edf8442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #3 0x000070edf84969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #4 0x000070edf8442476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #5 0x000070edf84287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #6 0x000070edf842871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #7 0x000070edf8439e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #8 0x00000000040395f7 llvm::VPTransformState::get(llvm::VPValue*, unsigned int, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x40395f7)
 #9 0x0000000004056ece llvm::VPInstruction::generatePerPart(llvm::VPTransformState&, unsigned int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4056ece)
#10 0x00000000040595ee llvm::VPInstruction::execute(llvm::VPTransformState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x40595ee)
#11 0x0000000004030a1f llvm::VPBasicBlock::executeRecipes(llvm::VPTransformState*, llvm::BasicBlock*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4030a1f)
#12 0x00000000040320e8 llvm::VPBasicBlock::execute(llvm::VPTransformState*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x40320e8)
#13 0x0000000004030612 llvm::VPRegionBlock::execute(llvm::VPTransformState*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4030612)
#14 0x0000000004039946 llvm::VPlan::execute(llvm::VPTransformState*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4039946)
#15 0x0000000003f1d475 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+0x3f1d475)
#16 0x0000000003f332ea llvm::LoopVectorizePass::processLoop(llvm::Loop*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x3f332ea)
#17 0x0000000003f35a29 llvm::LoopVectorizePass::runImpl(llvm::Function&, llvm::ScalarEvolution&, llvm::LoopInfo&, llvm::TargetTransformInfo&, llvm::DominatorTree&, llvm::BlockFrequencyInfo*, llvm::TargetLibraryInfo*, llvm::DemandedBits&, llvm::AssumptionCache&, llvm::LoopAccessInfoManager&, llvm::OptimizationRemarkEmitter&, llvm::ProfileSummaryInfo*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x3f35a29)
#18 0x0000000003f3614b llvm::LoopVectorizePass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x3f3614b)
#19 0x0000000002e212be 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+0x2e212be)
#20 0x0000000004c9f2d8 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4c9f2d8)
#21 0x0000000000dc9bee 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+0xdc9bee)
#22 0x0000000004c9dd46 llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4c9dd46)
#23 0x0000000000dca1fe 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+0xdca1fe)
#24 0x0000000004c9bf10 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4c9bf10)
#25 0x00000000008db1d2 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+0x8db1d2)
#26 0x00000000008ce0fc optMain (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x8ce0fc)
#27 0x000070edf8429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#28 0x000070edf8429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#29 0x00000000008c556e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x8c556e)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzcWttu47iy_RrlhZAhURfLD3nwJZkTnGnsoBPkNaCkks0JRWpIynH66w9Iyo6oONOdfbyxB9Po2BJZXLWquEiXLkQpuuUA10G2CrLNFen1TsjrR6LfCCcb0ZdaXZWifrt-FEhCJ0XdV4Bkz5HotP17pXqHwo4oBQoxIbpwD5UWkv4A16d3gBrBmHilfIs0KB0kyyDaBNEyyKPhvztNVuibqHsGdxsUJBsU4PkswLcSjNd6xliA585UiV5W8NxQBpy0MFjjqTV21prILWhUE00YeRO9PtpD2AbJEsIOz6MgWSbYfpjT2D81R3lqP0J6OohxESTLGBdhU0TDEbdN-XF4noYPtpma5rDDx45i-Euw68NTtlrSjp0iOxT5c56GPX_h4pWHjPL-EG55fxrlPmtoKAe0F7RGQRq9irYkOsAFzVMU4IzIbYAXKMBJhLaVwVWaaOgE5TqEA2k7BgHGKJivHF5ZniYLoVIiRkpgBqks47Ffc5oskZnBTkKtBtpZWSYBXrujI0yAs25HrYX5ttSyFYpOhijINvYkW1nSdX3qSmzfOx8ao4YwBcZgxA1PzhOfK_6EazyiKKRtFxLVVP1hEoSGJHY7auCjkfEWNDBogetOu3F-C00sI3NI6lqqjlQQ4CI2k8F7o9T1EV3II67SQoIZ6lJzdvDUtzEkjG45Ss_P2iQTySeZwKeMj3NC6tqamG8_GWMrWrWdNbMHPZsmbtChN4nDsMm0xZPz1Ceffio5T2nZB6l5XCaikqDt8hlczTdjn0RrScteg3JryLqcG0DsVm3YANG9BGXWZbIxn3jVyabavQZ4HVashlZoI9cAr8j-MBwYe3OgyK5xR13F2t7oIjyIzjVVsrIyCvDqoMjejgnJ_pDFuOni3Jz1CmSrjApC1abmC7adHLAVpLP4fQxtWjJCGxkZJ6FWB1Zr-eKwzCoOO_0qqSUfvtIaXpgbQ_m-q2jtTvK0pHoEWw0O42gWh1mM3_3vO9FVXNd_DtG1Yj_uxJRrkAoqfUpWFuNqcNOKfQmD-Z5zSrkubIKdiELSHsJjm-V54oCz3EHAHg7vhAyIa5e6HTzWh5Nra7aToMDQCVuxr6mkNjcgKWH0h2WjdmSA3LsJ_PMY3hCWpdJTbldqWA2TXbGG9WonOgsuidltbH_bVdXB7X8BXpUtPcamKXufMdO4bTj18-EUYYyP6uBHIDszzpsJuJa8HrNsjgPLZgCxzf7ZkLCw69UOd6IblFkdijFU-XpimQzCfundQaO2qiSOfcV-gBQ2s6-EapP3kL0Oumc_KpcOtSPvyc_T0rrvrPFryQXl-9pKnv9ZtfXAlEMl-B6kBdBla8dUgjd0e4yyEuZn73AkemJaHeL8lPghvNOaceIdnLwvpSbOq1HGqCbM-pF1J_vjZL-Wg4jbk1PAx7lQAPUoy4PrsJPQgK7srmXQ7HoLm5akvrHLk9J23e7dxhKanHYvlojaDj6bg5LjmbJCDc36J6N9xRUDm7Pl2vdjPShPNcJO606ZM3wb4NutqEvB9EyYquP2R4Bvf9v9SOJ0zv8Yb6oPmlQvqO7b7rPCMJoF0eJeiq0kLSJy25tfO2V3f3xrdXxrJpEykCEcOiYkSNPGCN-GpjKVmgquQi17_hLg25JyNxCFwkCQrjPnve56PVMofPisoA2Stas8g-TGUYsNte8956a4NYPMb0HT88p4DHDhAwTJmovQ7mwMyB7CRsgK6lBw9hYkKy7eTSddxiFemOkQHLW2SEb2N2ZE6FgK4nOcLkrEsjhGadCPhebAwP06Rofo-C-FRblIC8TY3lTcQbJUb8od3EvKtdXAo3SVzbuRJK_PQmkJpA1wbqsks-hM3VP8P6c-wKvoMNAymT3xjie8F1FZoQe65YT9D-E1M_jFQMM1q1nVGe1G9u8EhAegeQR1U6QpznA0EGe0DPDtUNOPannTUc2UmOWOnhnikUt8zEW-aCrU6Z0EUj-_UMa-5sCO9xykU9LpPEdbZeP8Kvl0nnvYmY-Ni3mTIFIKqb-GbAd6yPkH5Lj8MmZcephzHzNZwCL_GqYd4mEWnraiZJE189GaeLp_lISrRsj2wVyXudatqTmKsdUTYT0EeGkWRM_tJXztVsYalUKwS64QR9KLYuFHkeVQgRfFHVda9m4LHELgIImGe5D3RE7DmQTtFrof1wXjsXRP8ZgFH03iWWTwk3jgAFWv4edxXJK3oeXxjidqikjceLxXRNFqxUT14tH-DhXtTGXwl-ytut4NRlim65ICM7y9wPAkMBxB8SuB_TyiS9I2rDzayXQ-8hh7tL_Dlgr-3-ZtaHm80-mutEhzjzcjX9L9hfkaOh7fbMw3aeI6nWcjvr8L0T0N1Qsx2IY_d1XqKQQb0ziMG3cPZS16t49O99VpPtwu9d56Z1yMXZsoJzYb0VJOtJCPEo4rzO3XnhVwBd9IFyTr98aH9c0TqgRX-sPKHP8afES54434ayR7t8NUdePhNWhCmQ91T6j8MqnkJkhuRkYXU8Yw8Z4ycl8ZSYKBfKIMuCdqqEA7KSpQyvR6knANl-VsKXmc5xPOGcGLn3OWPb9rO-bxvT1ddkx091ARRuTNXrD-bL_xYXUy7Xi0N7VO6_uszUTUk1672d1K-LMHXr05gOU5J7_TUhJ53mIDLeE11Cuq1QcPS6X6tjNxrUm1-8jABLeszAQb7G-Ek-2ZpfmvTtN22C--Q0vky01LtT5jeS9FQxk89G075ntJjRgJeBopJhrJ47T8JY38mj6WnLA3RdUxOeM1fhpkdohLVjRDGF6cXmWJAce4hE82JRPmN1EDO8_2gwT8_Pxb4Zv_f_-8Dmkb5xX7FW61aHA9LqhsLv-K4z84XUM2vHR5hXVUV4sSLiHD_1ia_8HT45LvzQ6eiLmuvXLVPUF-FEdKJuvLmnRayPMBuwFfCncY8h_QognGizaZaJHEzde0eAxv_Ys5-jeS8JmU_j6ZdXnzEptOZFQ2cfQLi_VcOv8pWRqy4KXJu9iKirqM6_FFreyteO5pB4xy_8rwQUvKt9-hOSe-T2rNb6TaWZyfFYmu-p1aCcH-ZW_j39oHZBft_iScpZTkzbSOJ8jmhPVbyj_uz-_2Steu7fTAIFm7VzfGaTRYq56yeihGF-d2fdHpZ20uJV01a6P4X2qf631q9QSSNhTk0e54Kfq174upz2nLE1_ui6-CqKmQ6PQ3QvnF3FpUz-3k1i9e1Isv3rm3QzzMYooJaYSen82wZ6WJ1M_te1C_7AVS38tikrAsywE5_Mvly4CevB4fy2mQ9joQavfal3tkECRL9HD328PNb0_OfD04RhJ0LzmYBYDiZDF57ndVXyf1IlmQK7iO5zgqIjzH0dXuuiiTrMzTrCgLgos0jwkhkOZzaPCiyMroil7jCKfRPMZxnmZxPoM0hiSLq6qBHNKyCtIIWkLZzCyLmZDbK6pUD9eLIs-jK_u2ibLvw2HM4RXZzgDjINtcyWszJiz7rQrSiFGl1TuKpprB9fKYPmQCwcXT7Ywqd_1t879AwXwdzNdoA00YJDdU_U73cMf9zh1R7npluI1SbNyu426en8wCXOzIgD6xfLq_0yDJ8BTSjVsjKxa7YvMA52hDNJkN9-QdigqylUHINkG2sqOyzUzZtxscv2QTJBsU-zgBxo_yzb7eJxCx19qIIEX5lgFSFhh1IFFnZFj22sSH2p5p-4abM7APKc3f0XBmX56Zo4ZQBvXsqpfsevJ8mepdX84q0ZqVYTY59xV2UvxhXxy5tbOnAnzrZnd_jf8vAAD__yDLZTg">