ea8c9f3b27
In the arbfp backend there is a seqential approach to finding a suitable arbfp program to use for a given pipeline; first we see if there's already a program associated with the pipeline, 2nd we try and find a program associated with the "arbfp-authority" 3rd we try and lookup a program in a cache and finally we resort to starting code-generation for a new program. This patch slightly reworks the code of these steps to hopefully make them a bit clearer.