Addresses #3809: when we are asked to create a Cranelift backend with shared flags that indicate support for SIMD, we should check that the ISA level needed for our SIMD lowerings is present.
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.