<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/60011>60011</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Build started to fail with `error: use of undeclared identifier 'MISchedDumpReservedCycles'`
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            build-problem
      </td>
    </tr>

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

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

<pre>
    ```
FAILED: lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineScheduler.cpp.o 
"/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/build-llvm/./bin/clang++" -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I"/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/build-llvm/tools/clang/stage2-bins/lib/CodeGen" -I"/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/llvm/lib/CodeGen" -I"/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/build-llvm/tools/clang/stage2-bins/include" -I"/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/llvm/include" -fstack-protector-strong -Wformat -Werror=format-security -Wno-unused-command-line-argument -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -ffile-prefix-map=/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/build-llvm/tools/clang/stage2-bins=build-llvm/tools/clang/stage2-bins -ffile-prefix-map=/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/= -no-canonical-prefixes -O2 -DNDEBUG -g1  -fno-exceptions -std=c++17 -MD -MT lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineScheduler.cpp.o -MF lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineScheduler.cpp.o.d -o lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachineScheduler.cpp.o -c '/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/llvm/lib/CodeGen/MachineScheduler.cpp'
/build/llvm-toolchain-snapshot-16~++20230113111109+aba8983c9d86/llvm/lib/CodeGen/MachineScheduler.cpp:2639:7: error: use of undeclared identifier 'MISchedDumpReservedCycles'
  if (MISchedDumpReservedCycles)
      ^
1 error generated.
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzEVsFu4zYQ_Rr6QowhUWsnOvjgRNEiQJwUSbZGTwFFjuTpUqRKUs66h357Qcu7SdtF0QIJNghsc8h5M-9xyKEMgTqLuGKLC7aoZnKMO-dX4WD2GKLHWeP0YcWW2ek_q1i2rtfXN1cVK9bcUMNEfek0fkSbfm3kZ6zJYGCivrn5eXOammvyTNQbqXZk8UHtUI8G_VwNw9zxCZUJwUTdjGQ0E7Ux-x6ic0btJFkIVg5h5yLkyz-YuGDiQmSiyPK8yPM8z0omLmQjz8vzQpX6fPkVCBIME_U8GShlqIy03YTAhOBQPX28_fT0cPfp_vIqjZ4eHqvLp8u724fH9e3j02Z9eX_38DJR391v1v8031xvrl-s1-9JJQGFFyJ1iLJDAQ3ZZP3bhoi3T-aUxvsH-h-sySozanxPvq9DtCFK9RkG7yKq6DyE6J3tOGxb53sZOWzRe-dZUU0GCKhGT_HAYWsdjHYMqEG5vpdWgyGLIH039miTr5YRIVKPqb7qu_vH6_qXU4Wyokrxf7q-5NBaBwF7aSMpIBvRDy5QJGc5tHsK1JCheACyKUCAHWmN9lVur-J8s422G6XXqEHuJRl5wrD4zGErjUlLv0Qv_0JkkF72GNFz2D57ipgEIdsFDlslQ4TfRpk8ewqBbActodFAliJJQ7-jDxwG1EcmE7Bxtjt-JIRpn8rzJNggIxwTSNSJw5b6wZCiCK00Ju68G7tdcnJ79KghPFNUO9DYytHECdw6_KJwiBAPAx5NFvbk4ygN6OgSC40GI8J3ZsLYdRgiJHxPOvlPZEE5u0cfjvonqgalTnayGm2U08ZsVZQaenloEEYbxmFwPqLm0GqSnXUhkgqgnEnB2na0Kvml-knfIa2TUb4et2QQBo8tfYFeDqyofsghLKr_uvTdc2ZFxcE6UNI6S0qaUygMHO7SlX9bXV18-sihy_l0jKZ6mAQNUbOiOhVdfsZhU3HYPL5Rq4NN_TZIc83BvVVSijNx9v5N4rvxU-RT__8x8Yu1WBYlK9Zn6UVzugjXfAzIXctHq1EZ6VFzSueYWkKf5NpcH2GqsR_uMaDfo748qKPyJ0KcU8uZOP-XleXXlemPLa6mYT5lwTu06GVEPT8p9PUZNtOrQpdFKWe4ypdnxbIQeSlmuxXK5aJUarFciEWzbMtcYy601M3ZedlItZzR6pt0Zx_KhZhn5yJvy7Myz2TeZMuGfciwl2TmScK5892MQhhxtcyyPJ8Z2aAJx8eiENOBH7xrDPap6y6qmV8d964Zu8A-ZIZCDC9IkaLB1UVy4yHK48UXHW8lGf5MccfZMnsb_ZfZbPRmtYtxCKxIpcVE3VHcjc1cuf5VhaRsB-9-RRVTl09c09k50v0zAAD__xN5l8o">