Simon Brown@sjb3dExcellent job getting scan/reduce into SPIR-V, can finally make use of cross-lane fast paths in platform-agnostic shader code.1:28 PM · Mar 12, 2015·Twitter Web Client2 Likes
Allan MacKinnon@pixelio·Mar 12, 2015Replying to @sjb3d@sjb3d Agreed! But am not seeing cross-lane subgroup shuffle ops in SPIR-V. Implemented in Kepler, Maxwell, Broadwell and GCN3.2
Simon Brown@sjb3d·Mar 12, 2015Replying to @pixelio@pixelio yeah is abstracted as scan/reduce IR ops, I don't see how to go lower while keeping IR warp/wavefront size unaware
