Managing branch prediction information for different contexts

An integrated circuit comprising:

• at least one processor executing instructions in a pipeline, where each instruction is associated with a particular translation context of a plurality of potential translation contexts that are used to distinguish otherwise identical virtual addresses from each other, and the instructions include branch instructions;
• first storage for branch prediction information characterizing results of branch instructions previously executed by the processor, where the first storage is dynamically partitioned into a plurality of partitions of one or more entries, and where dynamically partitioning includes updating a partition to include an additional entry, during operation of the processor, by associating the additional entry with a particular subset of one or more translation contexts that contains fewer than all of the plurality of potential translation contexts;
• first circuitry configured to provide a predicted branch result that is determined based on at least a portion of the branch prediction information;
• and
• second circuitry configured to provide an actual branch result based on an executed branch instruction, and to update the branch prediction information based on the actual branch result;
• wherein providing a predicted branch result for a first branch instruction includes retrieving a first entry from a first partition of the plurality of partitions based at least in part on an identified first subset of one or more translation contexts associated with the first branch instruction;
• and
• wherein a total number of entries in the first partition changes during operation of the processor.