[clang] [llvm] [ARM] Introduce intrinsics for MVE vrnd under strict-fp. (PR #169797)

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github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 166454 tests passed
* 2872 tests skipped
* 1 test failed

## Failed Tests
(click on a test name to see its output)

### LLVM
<details>
<summary>LLVM.CodeGen/Thumb2/mve-intrinsics/strict-intrinsics.ll</summary>

```
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple=thumbv8.1m.main -mattr=+mve.fp -o - /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/Thumb2/mve-intrinsics/strict-intrinsics.ll | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/Thumb2/mve-intrinsics/strict-intrinsics.ll
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mtriple=thumbv8.1m.main -mattr=+mve.fp -o - /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/Thumb2/mve-intrinsics/strict-intrinsics.ll
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc: error: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/Thumb2/mve-intrinsics/strict-intrinsics.ll:259:30: error: unknown intrinsic 'llvm.arm.mve.vmaxnm.v4f32'
# |   %2 = tail call <4 x float> @llvm.arm.mve.vmaxnm.v4f32(<4 x float> %a, <4 x float> %b)
# |                              ^
# `-----------------------------
# error: command failed with exit status: 1
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/Thumb2/mve-intrinsics/strict-intrinsics.ll
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/Thumb2/mve-intrinsics/strict-intrinsics.ll
# `-----------------------------
# error: command failed with exit status: 2

--

```
</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/169797