[llvm] [PowerPC] Alignment of toc-data symbol should not be increased during optimizations (PR #94593)

[Kai Luo via llvm-commits]

bzEq wrote:

> toc-data should be documented in LangRef, though

Posted https://github.com/llvm/llvm-project/pull/94828.

https://github.com/llvm/llvm-project/pull/94593