02d5edc591
* Upgrade to regalloc2 0.1.3. This pulls in bytecodealliance/regalloc2#49, which slightly improves codegen in some cases where a safepoint (for reference-typed values) occurs in the same liverange as a register-constrained use. For example, in bytecodealliance/wasmtime#3785, an extra move instruction appeared and a callee-save register was used (necessitating a more expensive prologue) because of suboptimal splitting heuristics, which this PR fixes. The updated RA2 heuristics appear to have no measured downsides in existing benchmarks and improve the manually-observed codegen issue. * Update filetests where regalloc2 improvement altered behavior with reftypes.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.