[llvm] [msan] Fix-forward avx512-intrinsics-upgrade.ll (PR #124495)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ppc64le-linux-test-suite` running on `ppc64le-clang-test-suite` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/95/builds/8860

<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 :: Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/build/bin/opt /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/llvm-project/llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll -S -mtriple=x86_64-linux-gnu -mattr=+avx512f -passes=msan 2>&1 | /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/build/bin/FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/llvm-project/llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/build/bin/opt /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/llvm-project/llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll -S -mtriple=x86_64-linux-gnu -mattr=+avx512f -passes=msan
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/build/bin/FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/llvm-project/llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/llvm-project/llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll:16545:15: error: CHECK-NEXT: expected string not found in input
; CHECK-NEXT: [[_MSPROP:%.*]] = or <16 x i32> [[TMP1]], [[TMP2]]
              ^
<stdin>:14261:29: note: scanning from here
 call void @llvm.donothing()
                            ^
<stdin>:14261:29: note: with "TMP1" equal to "%1"
 call void @llvm.donothing()
                            ^
<stdin>:14261:29: note: with "TMP2" equal to "%2"
 call void @llvm.donothing()
                            ^
<stdin>:14279:2: note: possible intended match here
 %13 = xor <16 x i32> %12, zeroinitializer
 ^
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/llvm-project/llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll:16571:15: error: CHECK-NEXT: expected string not found in input
; CHECK-NEXT: [[_MSPROP:%.*]] = or <16 x i32> [[TMP1]], [[TMP2]]
              ^
<stdin>:14293:29: note: scanning from here
 call void @llvm.donothing()
                            ^
<stdin>:14293:29: note: with "TMP1" equal to "%1"
 call void @llvm.donothing()
                            ^
<stdin>:14293:29: note: with "TMP2" equal to "%2"
 call void @llvm.donothing()
                            ^
<stdin>:14311:2: note: possible intended match here
 %13 = xor <16 x i32> %12, zeroinitializer
 ^
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-test-suite/clang-ppc64le-test-suite/llvm-project/llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll:16598:15: error: CHECK-NEXT: expected string not found in input
; CHECK-NEXT: [[_MSPROP:%.*]] = or <16 x i32> [[TMP1]], [[TMP2]]
              ^
<stdin>:14326:29: note: scanning from here
 call void @llvm.donothing()
                            ^
<stdin>:14326:29: note: with "TMP1" equal to "%1"
 call void @llvm.donothing()
                            ^
<stdin>:14326:29: note: with "TMP2" equal to "%2"
 call void @llvm.donothing()
                            ^
...

```

</details>

https://github.com/llvm/llvm-project/pull/124495