[llvm] [PowerPC] Deprecate uses of ISD::ADDC/ISD::ADDE/ISD::SUBC/ISD::SUBE (PR #133155)

[zhijian lin via llvm-commits]

diggerlin wrote:

since the patch  https://github.com/llvm/llvm-project/pull/116984 is reverted.
the patch is based on the patch https://github.com/llvm/llvm-project/pull/127376 and https://github.com/llvm/llvm-project/pull/116984. thanks for Kai's work.

Both the crash while building the Linux kernel for 32-bit powerpc 
and the regression on the test-suite :: MultiSource/Benchmarks/Prolangs-C/allroots/allroots.test  are fixed.

https://github.com/llvm/llvm-project/pull/133155