[llvm] [PowerPC] Deprecate uses of ISD::ADDC/ISD::ADDE/ISD::SUBC/ISD::SUBE (PR #116984)

[David Tenty via llvm-commits]

daltenty wrote:

This is also breaking test-suite on AIX. I'm getting different numerical results in, for example:
```
test-suite :: MultiSource/Benchmarks/Prolangs-C/allroots/allroots.test
```


https://github.com/llvm/llvm-project/pull/116984