33e0d05645
This is tricky: the control flow implicitly implied by the operand makes it so that the output register may be undefined, if we mark it only as a "def". Make it a "mod" instead, which matches our usage in the codebase, and will make it crash if the output operand isn't unconditionally defined before the instruction.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.