562bb25360
* Memoize `can_optimize_var_lookup` `can_optimize_var_lookup` can have quadratic behavior if there is a chain of blocks each containing a `local.get` instruction because each run can walk up the entire chain. This change memoizes the results of `can_optimize_var_lookup` so that we can stop following the chain of predecessors when we hit a block that has previously been handled (making the operation linear again).
This crate provides a straightforward way to create a
Cranelift IR function and fill it with
instructions translated from another language. It contains an SSA construction
module that provides convenient methods for translating non-SSA variables into
SSA Cranelift IR values via use_var and def_var calls.