<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/124001>124001</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Cannot select SystemZISD::GET_CCMASK with PGO instrumentation
        </td>
    </tr>

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

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

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

<pre>
    Using this reduced IR from Rust:

```llvm-ir
; ModuleID = 'reduced.bc'
target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
target triple = "s390x-unknown-linux-gnu"

define void @"_ZN4core3num22_$LT$impl$u20$u128$GT$14from_str_radix17hca3660e94cc40985E"(ptr %0, i128 %.sroa.0.0) #0 {
  br label %2

2: ; preds = %2, %1
  %.sroa.0.01 = phi i128 [ %.sroa.0.0, %1 ], [ %.sroa.01.1, %2 ]
  %3 = load i32, ptr %0, align 4
  %4 = zext i32 %3 to i128
  %5 = call { i128, i1 } @llvm.uadd.with.overflow.i128(i128 %.sroa.0.01, i128 %4)
  %6 = extractvalue { i128, i1 } %5, 1
  %.sroa.01.1 = select i1 %6, i128 %.sroa.0.0, i128 0
  br label %2
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i128, i1 } @llvm.uadd.with.overflow.i128(i128, i128) #1

attributes #0 = { "target-cpu"="z13" }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
```

A simple `opt -O1 | llc` pipeline works.

However, adding PGO instrumentation fails:

```
$ opt -pgo-kind=pgo-instr-gen-pipeline -O1 <reduced.bc | llc
        .file   ""
LLVM ERROR: Cannot select: t154: i32 = SystemZISD::GET_CCMASK t168, Constant:i32<15>, Constant:i32<3>
  t168: i32 = truncate t167
    t167: i128 = AssertZext t165, ValueType:ch:i1
 t165: i128 = SystemZISD::VACC t212, t73
        t212: i128 = SystemZISD::SELECT_CCMASK t23, Constant:i128<0>, TargetConstant:i32<14>, TargetConstant:i32<6>, t211
          t23: i128,ch = CopyFromReg t0, Register:i128 %4
            t22: i128 = Register %4
          t24: i128 = Constant<0>
          t206: i32 = TargetConstant<14>
          t207: i32 = TargetConstant<6>
          t211: i32 = SystemZISD::ICMP t178, Constant:i32<0>, TargetConstant:i32<0>
            t178: i32 = truncate t177
              t177: i128 = AssertZext t176, ValueType:ch:i1
 t176: i128 = SystemZISD::VACC t210, t89
                  t210: i128 = SystemZISD::SELECT_CCMASK t23, Constant:i128<0>, TargetConstant:i32<14>, TargetConstant:i32<6>, t209





                  t89: i128,ch = load<(load (s32) from %ir.0), zext from i32> t95, t9, undef:i64


 t157: i32 = Constant<0>
            t204: i32 = TargetConstant<0>
 t73: i128,ch = load<(load (s32) from %ir.0), zext from i32> t79, t9, undef:i64
          t9: i64,ch = CopyFromReg t0, Register:i64 %2
 t8: i64 = Register %2
          t3: i64 = undef
  t153: i32 = Constant<15>
  t152: i32 = Constant<3>
In function: _ZN4core3num22_$LT$impl$u20$u128$GT$14from_str_radix17hca3660e94cc40985E
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: llc
1. Running pass 'Function Pass Manager' on module '<stdin>'.
2. Running pass 'SystemZ DAG->DAG Pattern Instruction Selection' on function '@"_ZN4core3num22_$LT$impl$u20$u128$GT$14from_str_radix17hca3660e94cc40985E"'
 #0 0x0000000001aec96b llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/jistone/llvm-project-bisect/llvm/lib/Support/Unix/Signals.inc:798:3
 #1 0x0000000001aea0a4 llvm::sys::RunSignalHandlers() /home/jistone/llvm-project-bisect/llvm/lib/Support/Signals.cpp:105:20
 #2 0x0000000001aea486 SignalHandler(int) /home/jistone/llvm-project-bisect/llvm/lib/Support/Unix/Signals.inc:411:1
 #3 0x00007f7fda940090 __restore_rt (/lib64/libc.so.6+0x1a090)
 #4 0x00007f7fda9990f4 __pthread_kill_implementation (/lib64/libc.so.6+0x730f4)
 #5 0x00007f7fda93ffde gsignal (/lib64/libc.so.6+0x19fde)
 #6 0x00007f7fda927942 abort (/lib64/libc.so.6+0x1942)
 #7 0x0000000000407e3b std::mutex::lock() /usr/include/c++/14/bits/std_mutex.h:117:22
 #8 0x0000000000407e3b std::lock_guard<std::mutex>::lock_guard(std::mutex&) /usr/include/c++/14/bits/std_mutex.h:250:23
 #9 0x0000000000407e3b llvm::install_bad_alloc_error_handler(void (*)(void*, char const*, bool), void*) (.cold) /home/jistone/llvm-project-bisect/llvm/lib/Support/ErrorHandling.cpp:132:61
#10 0x00000000018933ee llvm::SDNode::getOperand(unsigned int) const /home/jistone/llvm-project-bisect/llvm/include/llvm/CodeGen/SelectionDAGNodes.h:993:5
#11 0x00000000018933ee llvm::SDNode::getConstantOperandVal(unsigned int) const /home/jistone/llvm-project-bisect/llvm/include/llvm/CodeGen/SelectionDAGNodes.h:1724:61
#12 0x00000000018933ee llvm::SelectionDAGISel::CannotYetSelect(llvm::SDNode*) /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:4425:44
#13 0x000000000189a41f llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*, unsigned char const*, unsigned int) /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:4135:35
#14 0x000000000188f456 llvm::SmallVectorTemplateCommon<llvm::SDNode*, void>::isSmall() const /home/jistone/llvm-project-bisect/llvm/include/llvm/ADT/SmallVector.h:143:39
#15 0x000000000188f456 llvm::SmallVectorImpl<llvm::SDNode*>::~SmallVectorImpl() /home/jistone/llvm-project-bisect/llvm/include/llvm/ADT/SmallVector.h:603:23
#16 0x000000000188f456 llvm::SmallVector<llvm::SDNode*, 4u>::~SmallVector() /home/jistone/llvm-project-bisect/llvm/include/llvm/ADT/SmallVector.h:1203:3
#17 0x000000000188f456 llvm::SelectionDAGISel::DoInstructionSelection() /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1354:5
#18 0x000000000189ee36 llvm::TimeRegion::~TimeRegion() /home/jistone/llvm-project-bisect/llvm/include/llvm/Support/Timer.h:160:9
#19 0x000000000189ee36 llvm::NamedRegionTimer::~NamedRegionTimer() /home/jistone/llvm-project-bisect/llvm/include/llvm/Support/Timer.h:168:8
#20 0x000000000189ee36 llvm::SelectionDAGISel::CodeGenAndEmitDAG() /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1123:3
#21 0x00000000018a2a2d llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1905:33
#22 0x00000000018a41ed llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:616:22
#23 0x000000000188ec33 llvm::OptLevelChanger::~OptLevelChanger() /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:269:11
#24 0x000000000188ec33 llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:376:1
#25 0x000000000188ec33 llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:347:6
#26 0x0000000000a66ff4 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (.part.0) /home/jistone/llvm-project-bisect/llvm/lib/CodeGen/MachineFunctionPass.cpp:94:33
#27 0x00000000010307f4 llvm::FPPassManager::runOnFunction(llvm::Function&) /home/jistone/llvm-project-bisect/llvm/lib/IR/LegacyPassManager.cpp:1416:7
#28 0x0000000001030a01 llvm::ilist_detail::node_base_prevnext<llvm::ilist_node_base<true, void>, true>::getNext() const /home/jistone/llvm-project-bisect/llvm/include/llvm/ADT/ilist_node_base.h:42:38
#29 0x0000000001030a01 llvm::ilist_node_impl<llvm::ilist_detail::node_options<llvm::Function, true, false, void, false, void>>::getNext() /home/jistone/llvm-project-bisect/llvm/include/llvm/ADT/ilist_node.h:117:66
#30 0x0000000001030a01 llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Function, true, false, void, false, void>, false, false>::operator++() /home/jistone/llvm-project-bisect/llvm/include/llvm/ADT/ilist_iterator.h:187:25
#31 0x0000000001030a01 llvm::FPPassManager::runOnModule(llvm::Module&) /home/jistone/llvm-project-bisect/llvm/lib/IR/LegacyPassManager.cpp:1451:22
#32 0x000000000103128d runOnModule /home/jistone/llvm-project-bisect/llvm/lib/IR/LegacyPassManager.cpp:1528:7
#33 0x000000000103128d llvm::legacy::PassManagerImpl::run(llvm::Module&) /home/jistone/llvm-project-bisect/llvm/lib/IR/LegacyPassManager.cpp:539:55
#34 0x00000000004f4171 compileModule(char**, llvm::LLVMContext&) /home/jistone/llvm-project-bisect/llvm/tools/llc/llc.cpp:753:34
#35 0x000000000041267f main /home/jistone/llvm-project-bisect/llvm/tools/llc/llc.cpp:411:35
#36 0x00007f7fda929248 __libc_start_call_main (/lib64/libc.so.6+0x3248)
#37 0x00007f7fda92930b __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x330b)
#38 0x00000000004e9dd5 _start (/home/jistone/llvm-project-bisect/build/bin/llc+0x4e9dd5)
Aborted (core dumped)
```
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzcWltz46gS_jXkhbJLgK4PeXDsOJs6mZlUkp2qsy8uLGGbHRlUgHLZh_PbT3FRLMtOJjObzLmkXLGMmu7va5qmQaJa87Vg7BQkZyCZndDWbKQ6Ldt73jB1spTV0-nvmos1NBuuoWJVW7IKXt7AlZJbeNNqA8gERO6TRv5T1_fbEVe2iZzBT7Jqa3Y5g4DMIMBZ0DFelgBnIJoYqtbMwIoaWtMn2ZogiM9HW0AmbMQRIJMckAlKRzzvXacxIJM0Hq0Qzv3V_fMV3ckJgl0bwHhnzije1KwzpUkRPY5a8U3IBzGquWgfR2vR-h4gmlRsxQWD95JXEMQRwHjxx-e4lIoR0W4xXgAcX90BHPNtUwMctziy_y0aHF_YGyi2DltooxaKVvwRZZuSkjSNWBGXZRwVeXJuzeG8MQoCnEQATyFHOLc_xlpJOo7GEcAFBJhEEGRnIJpAuFSwpktWW6kA1rKF1vONYpUOFBNs9QGcINetrxM5kWbDg7nkbGDS94MgmbnrvftojIIAdgJBOXE6a0kryIkz3adFa74WMO6EYyf8F3s0Vth3N9Kh6UQSJ1LSurbM_S3nHwiymR0SG3PjllbV-IGbzVjeM7Wq5cPYS-YHjkR998YAF52l1Flij0bR0tzTumVHLeIksT-H3kRj703NalYaJ42T9IWhDI3R8YHMZmFakTM4b0VpuBRwYozSdnyFtM5Y0vIbFHKlGINC6idRQiFb8cBFBXXDyramhi5rBh94XStmWiXglm2legI4F1IwT7xiZU3VcaJvcm3HJYQn8sipMYovW8N0iFkbiZmNHuxn4ahs3BwjM4DxX4gAjKHnvd8VPXd9P9rB0HPS8pAnUNspzCBII9kYOPpi3TCFdV2CNIINb1htM8GDVN_02Pf5TT6we6ZcYFeVzZXXF18gF9qodsuEoW7kVpTX-jBX2mscQ2erWcvRNy4qQGb20mkYrZkYPZt1cMh0l0KfwdkQ8n_jFa8ZtEGJff66uvr6CZ7f3Hy5sYEzpUJIEwLUNhiU2Dzqpx6Zwdsnbdj2j8vbmUVLJhfnd4vp9NPk9h_QoNQN9VQKbaiw3e3sJlOUAHJ-9A6xNyw417dnxqhWlNQweyML8N2llXFzhczgRGumzB82MxiUuhn31U7Ju6eGATIpN9aOm4Pudr_rkMbXyXQKDUYuGZmM9DzmWl_re3t-dT7deQGTIVW37Eyj4IQ7F9yHTopfv5-G2wYj1EMHncEAD-BpuXEYp7J5miu5vWFraFwyuWFrrg1TAZBPbH09VtM-0a7LoazB8Z7kDq2nuS8bpf2hHfILzAddsle7pIc9EHotTC-nn66hQdnxAP3O0BxQgl7V8XjNsoEs9I0vRm6Wvhq5WfqmyHWDbPLiwHhwT_RfFcNRETJd73MEdl4chrYtGwCZApy7AgLgXNsaovA1J8AJV64SsoZc1eDaHYBzaAqXJoy724qKrSy4NN6BMCjZi73XQttFavxqpHZ9bE55ZypZ8RKVHj7vQFvevi01pHFXYkCTh74HyQDv2yB9OY_E5_SEvOBJvyIEIfyCUFgcLgVchQLHCn5IaR1Nrq_OJ7fnULfLLTeQwmW7hoo1UhlbbG6MadzyjOcAz9fcbNrluJRbgOe2_glfo0bJP-26iedc65ZpgOeQigpyUdZtxaDZMFgqqjfQ1ii2hmS2Srg1tmKp2m3jK4Bo7B17reRa0S2kau1KBVfa-eUcjeFNK4QtJxqqbRmUPVeB17bhExV0bcuODEoBt26XZaUAmWpTceFmYmat40NVITvA2eRiBMj5bHIBr6kxTAl46QoXb-jWVQl2XLyVbpicnY_dB7kc68rG6DHq_hBlZZEuoRsSl9b0k_YX14oL4_x8Z71uZ9yzkKIPC6mNYnQLsK_GhfG16nwjtwzg-Z9cG1cY7o3zaMm1H-4uCPgS4Plt29i4AXj-u-CPtoGvBa31mIsSkElW2HlFAgE0IEAjGh8jcNMKr-Y3KqqaKQ26evpvYuzAlY2NPhTZOglHAR0eoovzFO7hsCX-R3ordus6CnhIwJOtslVFiziKigguFoppIxVbKAOdW6xqm_LsdznWcpwCfBY9IhoVUdjMAUzifWVFEa1iuFg0ZqMYrRbfeF0vXLm_K9Nf056RaBXvtCf72slqVTG41o7c6yiLVcV2etJ9PTgrYgzpUn6PaxHjnZKsP45RHGWMLKE2lY-tbWvYo7-sZfltF1mtVjaX-ewF8LwE-Mx95shaXHJjU5w21cKpGNuyBSG7fLqthbWcv2rZmlusW6oqn5f28JwfyOB8IGOn608jxYmtiXA3E4tjSHcz0e63aF0vlrRa0LqW5YIpJdVi8zwP_PmPdd7Erdmuwf2YwnJDFSzt2hYallLWYWV_FrNM8nEp6-pd5tO5xeemKRfrbn770y63BccE7afPvCCEsR7n29lnWTF_vWbmS8MUFXYYWuEOBqsuUzpmP454N16hYSordsGEpdGtLbPJhQWh3ZAVha0okoAe_RD6rrIILL7S-j9IBGVuB_U8EPg7VHpKLm9Z7Vv9Zv2fzPjbe4taIN-F1U-F0nESg58WTgiuOMaJ-wqkyIAUjdHqu6R8qzU9ldutrS2Os7I1bxi7g8k1HNVfxR8Ry5908Rnv889XcZL2-W9pXX9lpZHqjm2bmpqOMpm-QNmlii4xcu00hHT9XpE7md1ZhjtsPl5jO_FIEZglb2Z2aUu943w6Hv8aiv9kZfNGKmlEurRvqaRvpvLysMTtUTIfTARhx6Qjkn2HyNHZNpO9gr5Xz_-d2vJHpw0i7oixmzX5IGswRvo87viW2b2o2w1ah_ca3svfuzXUKg_eTm210E2A4nWQn-mWVR6U0xCgHjR_LGD_NMwBxsOVfgD4hQXGj-REVOdbbtwg_tLAQLgX4Hiw3FNMcfXG5WRS12dU8_LMFpN6b0l53jaHBST9lQQLt90iHcNBFUBjxL7PULXii_hEyw0XrCOzx_Dg3q-kmKK02w5YhoOSIGclIT2GXxpzxe5ZPd1QsX6eNsPWXxqEOC1cKAYCwzV9QGCo5Iqtafn0vzBQxJ0zdzSHC_z_D83Ybk_TQHNv8Y9omq5W_dOXAdJrqnWP41FyB6zycUOV6Z7N_02ORwAFXkXcTyT7tUBEomyP1_za9uyOCH-U0U9xuLwBeO7DpGe7y4OxyxJZQJ8P0dMI9XfiNddmUTFDeUiBQlZssaSaLRrF7gV7NHu1mu_wLATI1KiW9etpPIWuqavi1sx8tlo-orQeoHFrdWx35aRbq4u38HcK-LC6fsE3srEjqPdEd-MayOMpXNFa7xxz0GDdc9RD7--b3llSGmbr4LD3Bb9wwxQdVusf7pZ-m7_oHCWbgCccSH2AvzrK3me5O38L1fTgfPnAZy9lAv9a1n7aDk0fmAUS1KsVBofPEUE4r2AP3ceASNw7YiEVEXIMw84ndW_d6-nym97gzF_rxITYciXphj_eP9RcxShDsJTbhtfseYzLDVVuJ-s2szuwV1dfP02lMG6e_xxiI2Wt3c_S_w8wM_dokISTIpLsw0Q4zVZwS7l4P4v-QUJ3NnNwrF7gOIeLRc2X5UIbqsyipHW9CBhePmcnOM79ObvVmg21kmi5r9UqBHF0cXV5Nl3gMR4nr6sn0XKnfnCYzoqqSqBXHLS80VfLlteVOxcXnavOokev0JubLKUyzJ1nl1Ix93SSVQFK93rSSXVKqoIU9ISdooxkSVYkCT7ZnC4xXmZ5WqIqjdCqJCsWR2W0ZCVN45jm1Qk_xRFOIoQxjpIC4TEhqMAly1FVZEkSUxBHbEt5PXbvl0m1PnGPVE8RjqMInbiX4bR7LxVjwR6guwswBsnsRJ061st2rUEc2RSpd2oMNzU73XvP6bWXmh642Rx7Y-ukVfXpzz8WDjTuT_G_AwAA__8-auYU">