[llvm] [LoongArch][DAG] Custom lowering for vector SETCC operations (PR #177904)

[via llvm-commits]

github-actions[bot] wrote:

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

* 168911 tests passed
* 3014 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.CodeGen/LoongArch/pr177863.ll</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 3
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc --mtriple=loongarch32 -mattr=+lasx --verify-machineinstrs < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/LoongArch/pr177863.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/LoongArch/pr177863.ll --check-prefix=LA32
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc --mtriple=loongarch32 -mattr=+lasx --verify-machineinstrs
# 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/LoongArch/pr177863.ll --check-prefix=LA32
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/LoongArch/pr177863.ll:9:14: error: LA32-NEXT: expected string not found in input
# | ; LA32-NEXT: ld.w $a3, $a1, 8
# |              ^
# | <stdin>:8:18: note: scanning from here
# | # %bb.0: # %entry
# |                  ^
# | <stdin>:10:11: note: possible intended match here
# |  xvpickve2gr.w $a0, $xr0, 0
# |           ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/LoongArch/pr177863.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |           1:  .file "<stdin>" 
# |           2:  .text 
# |           3:  .globl test # -- Begin function test 
# |           4:  .p2align 5 
# |           5:  .type test, at function 
# |           6: test: # @test 
# |           7:  .cfi_startproc 
# |           8: # %bb.0: # %entry 
# | next:9'0                      X error: no match found
# |           9:  xvseq.d $xr0, $xr1, $xr0 
# | next:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
# |          10:  xvpickve2gr.w $a0, $xr0, 0 
# | next:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | next:9'1               ?                  possible intended match
# |          11:  vinsgr2vr.w $vr1, $a0, 0 
# | next:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
# |          12:  xvpickve2gr.w $a0, $xr0, 2 
# | next:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |          13:  vinsgr2vr.w $vr1, $a0, 1 
# | next:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
# |          14:  xvpickve2gr.w $a0, $xr0, 4 
# | next:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |          15:  vinsgr2vr.w $vr1, $a0, 2 
# | next:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           .
# |           .
# |           .
# | >>>>>>
# `-----------------------------
# 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/177904