MINOR: tools: add 64-bit rotate operators

This adds rotl64/rotr64 to rotate a 64-bit word by an arbitrary number
of bits. It's mainly aimed at being used with constants.

(cherry picked from commit 7a40909c00c13d2733bc1d41ddc7dc1d19e05da9)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit 4deb8529fe01327ab23f18290cf7fdd2ef99090a)
Signed-off-by: Willy Tarreau <w@1wt.eu>
1 file changed