c65de1f1b1
This is a follow-up to comments in #5795 to remove some cruft in the x64 instruction model to ensure that the shape of an `Inst` reflects what's going to happen in regalloc and encoding. This accessor was used to handle `round*`, `pextr*`, and `pshufb` instructions. The `round*` ones had already moved to the appropriate `XmmUnary*` variant and `pshufb` was additionally moved over to that variant as well. The `pextr*` instructions got a new `Inst` variant and additionally had their constructors slightly modified to no longer require the type as input. The encoding for these instructions now automatically handles the various type-related operands through a new `SseOpcode::Pextrq` operand to represent 64-bit movements.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.