be6f060abf
This PR updates Cranelift to use the new version of regalloc.rs (bytecodealliance/regalloc.rs#55) that provides dense vreg->rreg maps to the `map_reg()` function for each instruction, rather than the earlier hashmap-based approach. In one test (regex-rs.wasm), this PR results in a 15% reduction in memory allocations (1245MB -> 1060MB) as measured by DHAT on `clif-util wasm` runs.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.