[CIR] Replace RecordType data layout calculations #1569
Merged
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We have been using RecordLayoutAttr to "cache" data layout information calculated for records. Unfortunately, it wasn't actually caching the information, and because each call was calculating more information than it needed, it was doing extra work.
This replaces the previous implementation with a set of functions that compute only the information needed. Ideally, we would like to have a mechanism to properly cache this information, but until such a mechanism is implemented, these new functions should be a small step forward.