Minor cleanup from building & diffing behavior
on various platforms.
base/hashmap.hh:
gcc on Alpha doesn't always define __LP64__,
even though it arguably should.
cpu/exec_context.cc:
Clear register file on non-full-system too (even though
it typically gets overwritten by the initial regs from
the Process object).
sim/process.cc:
Clear initial register copy in Process object.
Not all regs get initialized when the executable is loaded.
--HG--
extra : convert_revision :
f1fe4734a5ea81331d70994cb5284b1e9db0dceb