Improve register allocation on x64.
tree440e0065fea11016f5ec445e087a89f0c6e42c76
-rw-r--r-- 71 .gitignore
-rw-r--r-- 2928 COPYRIGHT
-rw-r--r-- 4814 Makefile
-rw-r--r-- 455 README
drwxr-xr-x - doc
drwxr-xr-x - dynasm
drwxr-xr-x - etc
drwxr-xr-x - lib
drwxr-xr-x - src