071d3a68d0
Attempt to match a Jump instruction in ISLE will currently lead to the generated files not compiling. This is because the definition of the InstructionData enum in clif.isle does not match the actual type used in Rust code. Specifically, clif.isle erroneously omits the ValueList variable-length argument entry if the format does not use a typevar operand. This is the case for Jump and a few other formats. The problem is caused by a bug in the gen_isle routine in meta/src/gen_inst.rs.
This crate contains the metaprogram used by cranelift-codegen. It's not useful on its own.