Scott Wood [Tue, 26 Dec 2006 00:58:40 +0000 (18:58 -0600)]
Use GCC builtins for bit scanning. The minor benefit is that it is
non-arch-specific; the major benefit is that it can be done at
compile-time when the argument is a constant.
Scott Wood [Sun, 3 Dec 2006 21:52:06 +0000 (15:52 -0600)]
Remove Mem.AddrSpace.alloc_and_map(); a Mappable that allocates
anonymous memory should be used instead. Later, add a way to
instantiate anonmem mappables with a given set of AllocFlags.