Re: [Mesa-dev] [PATCH] gallivm: Use native packs and unpacks for the lerps

2016-10-18 Thread Jose Fonseca
On 18/10/16 02:38, srol...@vmware.com wrote: From: Roland Scheidegger For the texturing packs, things looked pretty terrible. For every lerp, we were repacking the values, and while those look sort of cheap with 128bit, with 256bit we end up with 2 of them instead of just 1

[Mesa-dev] [PATCH] gallivm: Use native packs and unpacks for the lerps

2016-10-17 Thread sroland
From: Roland Scheidegger For the texturing packs, things looked pretty terrible. For every lerp, we were repacking the values, and while those look sort of cheap with 128bit, with 256bit we end up with 2 of them instead of just 1 but worse, plus 2 extracts too (the unpack,