<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/151686>151686</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Assertion `EPResumeVal && "must have a resume value for the canonical IV"' 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 using -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 i32 @wombat() gc "statepoint-example" {
bb:
  br label %bb2

bb1: ; preds = %bb2
  %phi = phi i8 [ %trunc, %bb2 ]
  ret i32 0

bb2:                                              ; preds = %bb2, %bb
  %phi3 = phi i32 [ 0, %bb ], [ %add5, %bb2 ]
  %phi4 = phi i32 [ 0, %bb ], [ %add, %bb2 ]
  %add = add i32 %phi4, -16777216
  %trunc = trunc i32 %phi4 to i8
  %add5 = add i32 %phi3, 1
  %icmp = icmp ugt i32 %phi3, 1050
  br i1 %icmp, label %bb1, label %bb2
}
```
Reproducer: https://godbolt.org/z/xz3sEWhTY
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 0x00000000056729e8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x56729e8)
 #1 0x000000000566f894 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #2 0x00007685c0442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #3 0x00007685c04969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #4 0x00007685c0442476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #5 0x00007685c04287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #6 0x00007685c042871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #7 0x00007685c0439e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #8 0x00000000034821cd preparePlanForEpilogueVectorLoop(llvm::VPlan&, llvm::Loop*, llvm::DenseMap<llvm::SCEV const*, llvm::Value*, llvm::DenseMapInfo<llvm::SCEV const*, void>, llvm::detail::DenseMapPair<llvm::SCEV const*, llvm::Value*>> const&, llvm::EpilogueLoopVectorizationInfo const&) LoopVectorize.cpp:0:0
 #9 0x00000000034a4c56 llvm::LoopVectorizePass::processLoop(llvm::Loop*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x34a4c56)
#10 0x00000000034a6690 llvm::LoopVectorizePass::runImpl(llvm::Function&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x34a6690)
#11 0x00000000034a6cf7 llvm::LoopVectorizePass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x34a6cf7)
#12 0x0000000002db62be 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+0x2db62be)
#13 0x0000000005464431 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5464431)
#14 0x0000000000ebde5e 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+0xebde5e)
#15 0x0000000005464904 llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5464904)
#16 0x00000000009637fe 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+0x9637fe)
#17 0x00000000054624d1 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x54624d1)
#18 0x000000000096daca 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, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x96daca)
#19 0x0000000000961b7b optMain (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x961b7b)
#20 0x00007685c0429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#21 0x00007685c0429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#22 0x0000000000958c35 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x958c35)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzcWV2PozgW_TXOi0VkDBh4yAP1kdnWTmlLXaVa7VNkwBBvOzayTX3Mr1_ZQEhSqd5OT4006lIlGPve43OPr2-IQ43hrWRsBZIrkNwsaG-3Sq8eqX2jkt6ovrRmUar6bfWooGadVnVfMah7CVVn4Qu3W2i3DFpmLCyZUC-wN1y2MOioMcyA6EYo1QXPrLJK8z8YiAqACkDQ-I8KEF3BO1X3gn25gSC6gQCnS4DXmrmp6qUQAKcAFUb1umKbhgsm6Y6NpvjUFANUWKpbZmFNLRX0TfV2MmbBDkQFCzqcIhAVEfZv7jY8vnUtEvu3gO8bIc5AVIQ4C5oMjS3pu8jkTuLgwXdz1x10eBrIxleEhzF8RNVq3ol9TK8Z2ZA46OU3qV5kILjsX4NW9oMLQEXNGi4Z5BGGIEYvaldSC3AGcA7byiEYSy3rFJc2YK901wkGMIYgvQKoKMthESAsNRS0ZAICnJTliF2WTgvolqXTrDYjqdEAuma35b7XXXkGQXLleq3uZQXw9WgMQXLjHTSznima8J0c8KK_s2SmmQ5YRTMtJ01yBdHezPNxNwNbWtfJGbIDTnwRznkYWtcexV09yoDsjIOQpGmKQzLZeum89dA6sIdWQZ4dgCZnUCOHGk5GvNp13sg3-ta-s0QJmhKAh5OLGzlIh_Dk3qdHenOye79ONUG7Rd1a2xmXXXgN8LpVdamEXSrdArz-A-D16x-Ruf339vE_ABUPllbfYN3vuvc1AS0Byu-1ajXdQarbfsekNT4t8Vp1FuB1pXYdF0wH7LUTSjPt-gSVbeAKj7ZcSRM4Nb8BvC65HBxhoBwE7Tp339uut0sDg4cP6xUE0fVQeUB0C1AROmZfeyldkXM-brc1vazchABnp9XuWqqAS8u0YPSZBY3SFasDJcUbiK6kmk1PhtxsOHebVkm48-XRzXTExlcDfI7Qp7LwFKYQHfpUb3w9ADhCEL2i6S8hKc5ZBoV4drUWRIV5M0PjXnNp_bI_aloxp9beSNOXjTJWM7oDmLjU49K6eubL2p9ac4Cv0OtIy2k6kA6PSZMmy2P4wFtJxT-orIUDzzyHa2h4y2WjNhbgwt0_K177Zj56mGXVuTRG_jVMgMcJUpIlFYpjnGA0RiN46TbDUOUPqrsbqJZGLYnn7F1mxtExYE7ypoKd3WpG6803LsRl6N5_Ro9P6cYpga3x4V1KO07JDJwcA-MsbSJIS6XtZbDecYYl72DD8mLAsJwB02PAKGc5uQzQu8yA2WGGRXGGw6p2n2Id1exeULlW-rbjQrU9e_L773eluqNN8eTMxu0w9w5mxXHnDZOG3dEORNdz58P17ROslDT2nf0TFT37EOWLbNT3kfwWcNXh0L1mlnJxDHVPub6YVHQLotvJ6CT8STMnw9NYt6jb-o70gU8ODy3YmR2aHy8QjauEnOi8d7-nZqxinVYVM-bdYu2X5dNq1khpyChXstAJYUJy9P8J615-2XXiiOx6_4lFPpewozQTDk8JV036Q4Q_JnuYCoWk4s1wc0clbdlxmu2dXJJ-dpBVk85B4sMgcV0SXLIPNoWL8U7VTJyn-m6bH4vzU7G7_7-_qKNss6jR0cdzTOI4Cg9IeiG_R_AX1mpUY9YqPtQKsbJmyWck4F-m8S-8NoP489Ikp2mco_iA43Du8agmPk7yoqadVfp8tIPDRbGOLn9FFuYonkMlR1mYkyhtLsvCKbbrHxToJxT4KIn-PrIOus2qpicJhOP6R-rgOS1_FYlGFWaNspPMq2lFDyjq3qfNPe-Y4PL4a-eD1Vy2X1lzLu3eBfvoD-vuaLX1OMW50d95qal-cw-jw1PXqZVS4l_-4GHNxRmQPzX8QTiF1vTN9R6ujtdE9C2X72vybG9sPfTtzziia_fsD49kdFhXPRe1W0f_wHqm0qvObqxSYw0Yovgnl_X3rJ6Y5g1nerIr3chPXz9xl7ocmzMwP8nAsExLqDp7R7n8vDkd6n5OjE6-AOd1fuH5gneZAcNTQBYjuNk4n42xVNvNbg7nh6dg8cEU-FinJKuiBA7gnyaTBx2mnE4QLdM7Lqll9fCLxXCqAaICPnz57eH2tyeAiutxSqiZ7bVkLu1hGOWHJ5OLehXVeZTTBVuFaRKjOM4RWWxXEcVlQ9IwI5SlYVPGVUZJlVZpiQihYbngK4xwgjIUhigOY7KMCGpyVFMcZlHISAxixHaUi6XbCUul2wU3pmerMAlJRhb-HNb4X2kwluwF-lGAMUhuFnrlnIKybw2IkeDGmhnGcivYqphkg4Cg2_uvzPQ79uRPdgjABAKMd72xcEufGaRQ-3H47L6Pw0Zp_xtPRaWSvKICfnlyM-MUNpQLVi8XvRark7Nfbrd9uazUzuWE293DJei0-i-r3CL7EAzA6zHG5xX-XwAAAP__jlH7vw">