tree 04fcb64b25643fcef97514d5147efe3fe2259a5a
parent 5667505f3505738d3319c3a3067c847b864c96b8
author Andrew Hunter <ahh@google.com> 1449873270 -0800
committer Andrew Hunter <ahh@google.com> 1449874219 -0800

Tweak alignment hint implementation for Jets

I169b637a1e2a106956b536c41d6a514a266e7cc0 marked Jets (in C++11) as
aligned to 16 bytes, and enabled Eigen vectorization.  However, to
implement this, we added Eigen includes to port.h.

Turns out this broke some other tricks Ceres uses (redefining Eigen
constants for better performance), so we don't want to do that. Move
most of the implementation to jet.h where it is safe.

Change-Id: I47c6fc4180db1ff674bc660723dd5a2b84254e0d