mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7

mark some functions constexpr

Reviewed By: yfeldblum

Differential Revision: D29235403

fbshipit-source-id: 7af7df3cd0f7d0c4d0c3e303ca21185c6944e0c7