3bd0733011
Before this change, we were searching for each instruction twice, once when checking if it exists and once when figuring out where to insert it. By using the new function, we can do everything we need to do in one operation. Compilation time numbers for my shader-db database: Difference at 95.0% confidence -4.04706 +/- 0.669508 -0.922142% +/- 0.151948% (Student's t, pooled s = 0.95824) Reviewed-by: Eric Anholt <eric@anholt.net> Acked-by: Jason Ekstrand <jason@jlekstrand.net>
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