[llvm] [SimplifyLibCalls] Simplify cabs libcall if real or imaginary part of input is zero (PR #97976)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-fuzzer` running on `sanitizer-buildbot11` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/159/builds/1861

Here is the relevant piece of the build log for the reference:
```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
+ JOBS=48
+ RunFuzzerTest libxml2-v2.9.2
+ echo @@@BUILD_STEP test libxml2-v2.9.2 fuzzer@@@
+ ln -sf /b/sanitizer-aarch64-linux-fuzzer/build/llvm/lib/Fuzzer .
@@@BUILD_STEP test libxml2-v2.9.2 fuzzer@@@
+ export FUZZING_ENGINE=fsanitize_fuzzer
+ FUZZING_ENGINE=fsanitize_fuzzer
++ pwd
+ /b/sanitizer-aarch64-linux-fuzzer/build/fuzzer-test-suite/build-and-test.sh libxml2-v2.9.2
Cloning into 'SRC'...
command timed out: 1200 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1247.032540
Step 9 (test libxml2-v2.9.2 fuzzer) failure: test libxml2-v2.9.2 fuzzer (failure)
@@@BUILD_STEP test libxml2-v2.9.2 fuzzer@@@
+ export FUZZING_ENGINE=fsanitize_fuzzer
+ FUZZING_ENGINE=fsanitize_fuzzer
++ pwd
+ /b/sanitizer-aarch64-linux-fuzzer/build/fuzzer-test-suite/build-and-test.sh libxml2-v2.9.2
Cloning into 'SRC'...

command timed out: 1200 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1247.032540

```

https://github.com/llvm/llvm-project/pull/97976