[llvm] [LoopReduceMotion] Improve loop by extract reduction instruction (PR #179215)

[via llvm-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Windows-->
# :window: Windows x64 Test Results

* 60802 tests passed
* 1481 tests skipped

All executed tests passed, but another part of the build **failed**. Click on a failure below to see the details.

<details>
<summary>[code=4294967295] unittests/DebugInfo/DWARF/DebugInfoDWARFTests.exe</summary>

```
FAILED: [code=4294967295] unittests/DebugInfo/DWARF/DebugInfoDWARFTests.exe
C:\Windows\system32\cmd.exe /C "cd . && C:\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe -E vs_link_exe --msvc-ver=1944 --intdir=unittests\DebugInfo\DWARF\CMakeFiles\DebugInfoDWARFTests.dir --rc="C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\x64\rc.exe" --mt="C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\x64\mt.exe" --manifests  -- C:\clang\clang-msvc\bin\lld-link.exe /nologo @CMakeFiles\DebugInfoDWARFTests.rsp  /out:unittests\DebugInfo\DWARF\DebugInfoDWARFTests.exe /implib:unittests\DebugInfo\DWARF\DebugInfoDWARFTests.lib /pdb:unittests\DebugInfo\DWARF\DebugInfoDWARFTests.pdb /version:0.0 /MANIFEST:NO /STACK:10000000 /INCREMENTAL:NO /subsystem:console && cd ."
LINK: command "C:\clang\clang-msvc\bin\lld-link.exe /nologo @CMakeFiles\DebugInfoDWARFTests.rsp /out:unittests\DebugInfo\DWARF\DebugInfoDWARFTests.exe /implib:unittests\DebugInfo\DWARF\DebugInfoDWARFTests.lib /pdb:unittests\DebugInfo\DWARF\DebugInfoDWARFTests.pdb /version:0.0 /MANIFEST:NO /STACK:10000000 /INCREMENTAL:NO /subsystem:console" failed (exit code 1) with the following output:
lld-link: error: undefined symbol: LLVMInitializeMSP430AsmParser

>>> referenced by unittests\DebugInfo\DWARF\CMakeFiles\DebugInfoDWARFTests.dir\DwarfUtils.cpp.obj:(bool __cdecl llvm::dwarf::utils::isConfigurationSupported(class llvm::Triple &))

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/179215