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...t common case). [The optimizer is presently not sufficiently clever to work this out, but it could relatively easily be made to be. The old way would have required significant complexity to work out.] Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- This is all a bit annoying, since gl_FrontFacing is a bool in GL, but SEMANTIC_FACE is supposed to return a float -1/1. As-is the shader input load returns an int 0/-1, hence these shenanigans. src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nv50.cpp | 5 +++-- src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp | 5 +++-- 2 file...