The rollback was only for the beta, it didn't land on master. So the next release (1.54) did in fact enable mutable-noalias. You can see it in the function arg

The rollback was only for the beta, it didn't land on master. So the next release (1.54) did in fact enable mutable-noalias. You can see it in the function arguments in llvmir: https://rust.godbolt.org/z/a3c366nG6 https://rust.godbolt.org/z/a3c366nG6