[llvm] [LLVM] Factor disabled Libcalls into the initializer (PR #98421)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

> But you did factor them to some degree right? It looks like they are categorized in a mixture of multiple ways. It is neither based on the lib call (like one block for one lib call, or one block for a series of lib calls), nor on the triple, because some triples definitely appear multiple times.

Yeah, I just noticed which disabled libcalls were common and made a common branch instead of duplicating it.

https://github.com/llvm/llvm-project/pull/98421