464b32c030
NIR has fdiv, and all the NIR backends have to have lower_fdiv set appropriately already since various passes (format conversions, tgsi_to_nir, nir_fast_normalize(), etc.) might generate one. This causes softpipe and llvmpipe to now do actual divides, since lower_fdiv is not set there. Note that llvmpipe's rcp implementation is a divide of 1.0 by x, so now we're going to be just doing div(x, y) instead of mul(x, div(1.0, y)). Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com> Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16823> |
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