c5e3c0cafb
We assert after emitting each instruction that its size was less than the "worst-case size", which is used to determine when we need to proactively emit an island so pending branch fixups don't go out of bounds. However, the `EmitIsland` pseudo-inst itself can cause an arbitrarily large island to be emitted; this should not have to fit within the worst-case size (because island size is explicitly accounted for by the threshold computation). This PR fixes the assert accordingly. Fixes #4626.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.