[llvm] [CodeGen][SDAG] Remove Combiner WorklistMap (PR #92900)

[via llvm-commits]

aengelke wrote:

I moved the CombinerWorklistIndex to the end, so there are currently two padding bytes in the middle for future use. Two further bytes, e.g. for expanding NumValues/NumOperands to 32 bits each, could be gained in future by placing PersistentId under LLVM_ENABLE_ABI_BREAKING_CHECKS.

https://github.com/llvm/llvm-project/pull/92900