llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `flang-arm64-windows-msvc` 
running on `linaro-armv8-windows-msvc-01` while building `clang,llvm,mlir` at 
step 6 "test-build-unified-tree-check-mlir".

Full details are available at: 
https://lab.llvm.org/buildbot/#/builders/207/builds/7399

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-unified-tree-check-mlir) failure: test (failure)
******************** TEST 'MLIR :: mlir-runner/test-expand-math-approx.mlir' 
FAILED ********************
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 1
c:\users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir-opt.exe 
C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\mlir\test\mlir-runner\test-expand-math-approx.mlir
 
-pass-pipeline="builtin.module(func.func(math-expand-ops),convert-vector-to-scf,convert-scf-to-cf,convert-vector-to-llvm,convert-to-llvm,reconcile-unrealized-casts)"
  | 
c:\users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir-runner.exe    
                                                       -e main 
-entry-point-result=void -O0                                    
-shared-libs=C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir_c_runner_utils.dll
       
-shared-libs=C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir_runner_utils.dll
         
-shared-libs=C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir_float16_utils.dll
    | 
c:\users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\filecheck.exe 
C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\mlir\test\mlir-runner\test-expand-math-approx.mlir
# executed command: 
'c:\users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir-opt.exe' 
'C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\mlir\test\mlir-runner\test-expand-math-approx.mlir'
 
'-pass-pipeline=builtin.module(func.func(math-expand-ops),convert-vector-to-scf,convert-scf-to-cf,convert-vector-to-llvm,convert-to-llvm,reconcile-unrealized-casts)'
# executed command: 
'c:\users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir-runner.exe' 
-e main -entry-point-result=void -O0 
'-shared-libs=C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir_c_runner_utils.dll'
 
'-shared-libs=C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir_runner_utils.dll'
 
'-shared-libs=C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir_float16_utils.dll'
# .---command stderr------------
# | LLVM ERROR: Cannot select: intrinsic %llvm.aarch64.neon.ushl
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ 
and include the crash backtrace and instructions to reproduce the bug.
# | Stack dump:
# | 0.  Program arguments: 
c:\\users\\tcwg\\llvm-worker\\flang-arm64-windows-msvc\\build\\bin\\mlir-runner.exe
 -e main -entry-point-result=void -O0 
-shared-libs=C:\\Users\\tcwg\\llvm-worker\\flang-arm64-windows-msvc\\build\\bin\\mlir_c_runner_utils.dll
 
-shared-libs=C:\\Users\\tcwg\\llvm-worker\\flang-arm64-windows-msvc\\build\\bin\\mlir_runner_utils.dll
 
-shared-libs=C:\\Users\\tcwg\\llvm-worker\\flang-arm64-windows-msvc\\build\\bin\\mlir_float16_utils.dll
# | 1.  Running pass 'Function Pass Manager' on module 'LLVMDialectModule'.
# | 2.  Running pass 'AArch64 Instruction Selection' on function 
'@"func_roundeven32$vector"'
# | Exception Code: 0xC000001D
# | #0 0x00007ff78f02491c 
mlir::detail::FallbackTypeIDResolver::registerImplicitTypeID(class 
llvm::StringRef) 
(c:\users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\mlir-runner.exe+0x2b491c)
# | #1 0x00007ffdabc6ae50 (C:\WINDOWS\System32\ucrtbase.dll+0x7ae50)
# | #2 0x9d2a7ffdabc6ba5c
# `-----------------------------
# error: command failed with exit status: 0xc000001d
# executed command: 
'c:\users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\filecheck.exe' 
'C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\mlir\test\mlir-runner\test-expand-math-approx.mlir'
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  
c:\users\tcwg\llvm-worker\flang-arm64-windows-msvc\build\bin\filecheck.exe 
C:\Users\tcwg\llvm-worker\flang-arm64-windows-msvc\llvm-project\mlir\test\mlir-runner\test-expand-math-approx.mlir
# `-----------------------------
# error: command failed with exit status: 2

--

********************


```

</details>

https://github.com/llvm/llvm-project/pull/159278
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