path: root/src/mesa/main
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authorMatt Turner <>2013-08-08 13:50:01 -0700
committerMatt Turner <>2013-08-16 13:11:07 -0700
commit0ae9ca12a887a5aca47edc2a6a99eac4235bf4b0 (patch)
treeced4276dc96e8b1b21ea1e9dfbff6e5783c5dda8 /src/mesa/main
parent079bdba05f870807d3ed77fa3093cdb7727aa2fd (diff)
i965: Emit MOVs for neg/abs.
Necessary to avoid combining a bitcast and a modifier into a single operation. Otherwise if safe, the MOV should be removed by copy-propagation or register coalescing. With this and the next patch, there are only four changes in shader-db: all a single extra instruction. The code does something like mov a.w, -b.x and copy propagation doesn't work because it only handles no-op swizzles. Seems acceptable, given the known limitation of our copy propagation. Reviewed-by: Ian Romanick <> Reviewed-by: Paul Berry <>
Diffstat (limited to 'src/mesa/main')
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