89c4bba8bc
Make the optimization create more mad-friendly code if the order of the fadd's operands is unlucky. fossil-db (Navi): Totals from 9259 (8.07% of 114665) affected shaders: SGPRs: 615991 -> 616191 (+0.03%); split: -0.05%, +0.08% VGPRs: 442184 -> 443568 (+0.31%); split: -0.10%, +0.41% CodeSize: 32674876 -> 32625572 (-0.15%); split: -0.17%, +0.02% MaxWaves: 108560 -> 108152 (-0.38%); split: +0.07%, -0.44% Instrs: 6126473 -> 6120463 (-0.10%); split: -0.13%, +0.03% Signed-off-by: Rhys Perry <pendingchaos02@gmail.com> Reviewed-by: Marek Olšák <marek.olsak@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5631>