The various calls to adr.reloc() are not hoisted by the compiler, due calling into the virtual method Relocation::type().

Refactoring the method so that we only call adr.reloc() once reduces the number of calls made by Address::reachable on x64 a small but reproducible improvement on startup tests:

Before:
       111,608,658 instructions # 0.81 insns per cycle ( +- 0.06% )
        22,099,654 branches # 419.240 M/sec ( +- 0.06% )
           764,733 branch-misses # 3.46% of all branches ( +- 0.14% )

After:
       111,172,754 instructions # 0.81 insns per cycle ( +- 0.07% )
        21,969,414 branches # 419.493 M/sec ( +- 0.08% )
           761,295 branch-misses # 3.47% of all branches ( +- 0.14% )