[llvm] [AArch64] Fix metrics of ASIMD instructions in Neoverse N3 (PR #169790)

[via llvm-commits]

github-actions[bot] wrote:

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

* 166440 tests passed
* 2870 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.tools/llvm-mca/AArch64/Neoverse/N3-neon-instructions.s</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-mca -mtriple=aarch64 -mcpu=neoverse-n3 -instruction-tables < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/Neoverse/N3-neon-instructions.s | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/Neoverse/N3-neon-instructions.s
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-mca -mtriple=aarch64 -mcpu=neoverse-n3 -instruction-tables
# note: command had no output on stdout or stderr
# 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/tools/llvm-mca/AArch64/Neoverse/N3-neon-instructions.s
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/Neoverse/N3-neon-instructions.s:2166:15: error: CHECK-NEXT: expected string not found in input
# | # CHECK-NEXT: - - - - 33.00 51.50 51.50 18.75 7.75 7.75 7.75 647.50 582.50
# |               ^
# | <stdin>:1098:68: note: scanning from here
# | [0.0] [0.1] [1.0] [1.1] [2] [3.0] [3.1] [4] [5] [6.0] [6.1] [7] [8] 
# |                                                                    ^
# | <stdin>:1099:2: note: possible intended match here
# |  - - - - 33.00 51.50 51.50 18.75 7.75 7.75 7.75 663.50 570.50 
# |  ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/Neoverse/N3-neon-instructions.s
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |              .
# |              .
# |              .
# |           1093: [7] - N3UnitV0 
# |           1094: [8] - N3UnitV1 
# |           1095:  
# |           1096:  
# |           1097: Resource pressure per iteration: 
# |           1098: [0.0] [0.1] [1.0] [1.1] [2] [3.0] [3.1] [4] [5] [6.0] [6.1] [7] [8]  
# | next:2166'0                                                                        X~ error: no match found
# |           1099:  - - - - 33.00 51.50 51.50 18.75 7.75 7.75 7.75 663.50 570.50  
# | next:2166'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | next:2166'1      ?                                                              possible intended match
# |           1100:  
# | next:2166'0     ~
# |           1101: Resource pressure by instruction: 
# | next:2166'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           1102: [0.0] [0.1] [1.0] [1.1] [2] [3.0] [3.1] [4] [5] [6.0] [6.1] [7] [8] Instructions: 
# | next:2166'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           1103:  - - - - - - - - - - - 0.50 0.50 abs d29, d24 
# | next:2166'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           1104:  - - - - - - - - - - - 0.50 0.50 abs v0.16b, v0.16b 
# | next:2166'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |              .
# |              .
# |              .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

```
</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/169790