[llvm] [llvm][RISCV] Optimize fabs for fixed vectors (PR #194554)

[via llvm-commits]

github-actions[bot] wrote:

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

* 173361 tests passed
* 3264 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.CodeGen/ARM/vfloatintrinsics.ll</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mcpu=swift < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/ARM/vfloatintrinsics.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/ARM/vfloatintrinsics.ll
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -mcpu=swift
# 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/CodeGen/ARM/vfloatintrinsics.ll
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/ARM/vfloatintrinsics.ll:344:11: error: CHECK: expected string not found in input
# |  ; CHECK: bfc {{r[1,3]}}, #31, #1
# |           ^
# | <stdin>:971:37: note: scanning from here
# | _test_v2f64.fabs: @ @test_v2f64.fabs
# |                                     ^
# | <stdin>:974:3: note: possible intended match here
# |  vmov d16, r0, r1
# |   ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/ARM/vfloatintrinsics.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |              .
# |              .
# |              .
# |            966:  bx lr 
# |            967:  @ -- End function 
# |            968:  .globl _test_v2f64.fabs @ -- Begin function test_v2f64.fabs 
# |            969:  .p2align 4 
# |            970:  .code 32 
# |            971: _test_v2f64.fabs: @ @test_v2f64.fabs 
# | check:344'0                                         X error: no match found
# |            972: @ %bb.0: 
# | check:344'0     ~~~~~~~~~
# |            973:  vmov d17, r2, r3 
# | check:344'0     ~~~~~~~~~~~~~~~~~~
# |            974:  vmov d16, r0, r1 
# | check:344'0     ~~~~~~~~~~~~~~~~~~
# | check:344'1       ?                possible intended match
# |            975:  adr r0, LCPI48_0 
# | check:344'0     ~~~~~~~~~~~~~~~~~~
# |            976:  vld1.64 {d18, d19}, [r0:128] 
# | check:344'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            977:  vand q8, q8, q9 
# | check:344'0     ~~~~~~~~~~~~~~~~~
# |            978:  vmov r0, r1, d16 
# | check:344'0     ~~~~~~~~~~~~~~~~~~
# |            979:  vmov r2, r3, d17 
# | check:344'0     ~~~~~~~~~~~~~~~~~~
# |              .
# |              .
# |              .
# | >>>>>>
# `-----------------------------
# 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/194554