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

[Nathan Chancellor via llvm-commits]

nathanchance wrote:

I thought I tested both 32-bit and 64-bit Linux kernel building/booting with this version of the change but it only looks like I did 64-bit because I found a boot issue with 32-bit configurations, for which I filed an issue with some reproduction steps and the original IR that I see the issue with (and I am happy to try and provide any additional information as necessary):

https://github.com/ClangBuiltLinux/linux/issues/2080

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