c6a4c60a0f
Allocations associated with pushes to EbbHeaderBlockData::predecessors account for 4.9% of all heap allocation (calls) in CL. This change avoids almost all of them by changing it to be a SmallVec<[PredBlock; 4]>. Dynamic instruction count falls by 0.15%.
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.