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authorRoland Scheidegger <[email protected]>2016-05-13 01:44:39 +0200
committerRoland Scheidegger <[email protected]>2016-05-27 19:11:28 +0200
commit9247570d42600fd01a8afbf6ae0bf6c7008e717a (patch)
tree9b8e9bc20a3bf8a4af9e29e7ec39c315091bbd8e /src/gbm
parent17d685c4267887661181209e47031bff9c85606b (diff)
gallivm: eliminate a unnecessary AND with unorm lerps
Instead of doing a add and then mask out the upper bits, we can simply do a add with a half wide type (this, of course, assumes the hw can actually do it...), so we'll get the required zero in the upper bits automatically. Reviewed-by: Jose Fonseca <[email protected]>
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