[llvm] [PowerPC][CodeGen] Expand ISD::AssertNoFPClass for ppc_fp128 (PR #152357)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ml-opt-dev-x86-64` running on `ml-opt-dev-x86-64-b1` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/137/builds/23502

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

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: CodeGen/Thumb2/mve-vcvt-fixed-to-float.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/b/ml-opt-dev-x86-64-b1/build/bin/llc -mtriple=thumbv8.1m.main-arm-none-eabi /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/Thumb2/mve-vcvt-fixed-to-float.ll -o - -mattr=+mve.fp | /b/ml-opt-dev-x86-64-b1/build/bin/FileCheck /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/Thumb2/mve-vcvt-fixed-to-float.ll # RUN: at line 2
+ /b/ml-opt-dev-x86-64-b1/build/bin/llc -mtriple=thumbv8.1m.main-arm-none-eabi /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/Thumb2/mve-vcvt-fixed-to-float.ll -o - -mattr=+mve.fp
+ /b/ml-opt-dev-x86-64-b1/build/bin/FileCheck /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/Thumb2/mve-vcvt-fixed-to-float.ll
/b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/Thumb2/mve-vcvt-fixed-to-float.ll:479:15: error: CHECK-NEXT: expected string not found in input
; CHECK-NEXT: vmov.i16 q1, #0x200
              ^
<stdin>:691:9: note: scanning from here
@ %bb.0:
        ^
<stdin>:692:2: note: possible intended match here
 vcvt.f16.s16 q0, q0, #15
 ^
/b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/Thumb2/mve-vcvt-fixed-to-float.ll:965:15: error: CHECK-NEXT: expected string not found in input
; CHECK-NEXT: vmov.i16 q1, #0x200
              ^
<stdin>:1367:9: note: scanning from here
@ %bb.0:
        ^
<stdin>:1368:2: note: possible intended match here
 vcvt.f16.u16 q0, q0, #15
 ^

Input file: <stdin>
Check file: /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/Thumb2/mve-vcvt-fixed-to-float.ll

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            .
            .
            .
          686:  .type vcvt_i16_15,%function 
          687:  .code 16 
          688:  .thumb_func 
          689: vcvt_i16_15: @ @vcvt_i16_15 
          690:  .fnstart 
          691: @ %bb.0: 
next:479'0             X error: no match found
          692:  vcvt.f16.s16 q0, q0, #15 
next:479'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
next:479'1      ?                         possible intended match
          693:  bx lr 
next:479'0     ~~~~~~~
          694: .Lfunc_end47: 
...

```

</details>

https://github.com/llvm/llvm-project/pull/152357