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worse in terms of NIR instruction count but lets the fabs fold easier. (on agx, which has fabs on comparisons and fmul but not on bcsel. should be no worse if ISA has fabs on all 3.) Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30934>