953f83e6ac
This is a nonsensical constraint: the entry block must come first in the compiled code's layout, so it cannot also be sunk to the end of the function. This PR modifies the CLIF verifier to disallow this situation entirely. It also adds an assert during final block-order computation to catch the problem (and avoid a silent miscompile) even if the verifier is disabled. Fixes #4656.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.