[llvm] [X86][GlobalIsel] Add test for IS_FP_CLASS (PR #148816)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-sie-win` running on `sie-win-worker` while building `llvm` at step 7 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/46/builds/20773

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

```
Step 7 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: Transforms/MemProfContextDisambiguation/func_assign_fix.ll' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 10
z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe -passes=memprof-context-disambiguation -supports-hot-cold-new 		-memprof-verify-ccg -memprof-verify-nodes -stats -debug  		-pass-remarks=memprof-context-disambiguation Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll -S 2>&1 | 	z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll --implicit-check-not="Mismatch in call clone assignment" 		--implicit-check-not="Number of callsites assigned to call multiple non-matching clones"
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe' -passes=memprof-context-disambiguation -supports-hot-cold-new -memprof-verify-ccg -memprof-verify-nodes -stats -debug -pass-remarks=memprof-context-disambiguation 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll' -S
# note: command had no output on stdout or stderr
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll' '--implicit-check-not=Mismatch in call clone assignment' '--implicit-check-not=Number of callsites assigned to call multiple non-matching clones'
# .---command stderr------------
# | Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll:31:11: error: CHECK: expected string not found in input
# |  ; CHECK: call void @C.memprof.1()
# |           ^
# | <stdin>:33:17: note: scanning from here
# | define void @B() {
# |                 ^
# | <stdin>:34:2: note: possible intended match here
# |  call void @C()
# |  ^
# | Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll:40:11: error: CHECK: expected string not found in input
# |  ; CHECK: call void @D()
# |           ^
# | <stdin>:39:16: note: scanning from here
# |  call void @F()
# |                ^
# | <stdin>:40:2: note: possible intended match here
# |  call void @D.memprof.1()
# |  ^
# | Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll:91:11: error: CHECK: expected string not found in input
# |  ; CHECK: call void @D.memprof.1()
# |           ^
# | <stdin>:78:26: note: scanning from here
# |  call void @F.memprof.1()
# |                          ^
# | <stdin>:83:3: note: possible intended match here
# | define void @D.memprof.1() {
# |   ^
# | 
# | Input file: <stdin>
# | Check file: Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |              1: Args: z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe -passes=memprof-context-disambiguation -supports-hot-cold-new -memprof-verify-ccg -memprof-verify-nodes -stats -debug -pass-remarks=memprof-context-disambiguation Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\MemProfContextDisambiguation\func_assign_fix.ll -S  
# | not:imp1'0      X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | not:imp2'0      X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |              2: remark: <unknown>:0:0: created clone C.memprof.1 
...

```

</details>

https://github.com/llvm/llvm-project/pull/148816