Enable __builtin_clz for all architectures.
authorGodfrey van der Linden <gvdl@google.com>
Tue, 20 Jan 2015 22:16:19 +0000 (14:16 -0800)
committerGodfrey van der Linden <gvdl@google.com>
Tue, 20 Jan 2015 22:16:19 +0000 (14:16 -0800)
commitffd4e52e70a63837e384b1943fc82c80c012a0ed
tree59e0c2c71d0206a76fcd80a9a7351b1df193f63d
parentfc0fea731f9038b64f1ac90b0c05c4bbbd362fc0
Enable __builtin_clz for all architectures.

According to Andrew Waterman, gcc provides a default implementation that
is efficient for any RTL that does not support support the command
directly.  I suspect that LLVM/clang is similar, though we can worry
about that in the future.
kern/include/ros/common.h