Hardware-based data prefetching based on loop-unrolled instructions

A system for prefetching data, the system comprising:

• a computer processor;
• and
• a prefetcher assembled with the computer processor, wherein the prefetcher is configured to:
• determine that a first set of instructions that is processed by the computer processor indicates that a second set of instructions includes a plurality of iteration groups, wherein each of the iteration groups includes one or more loop-unrolled instructions;
• monitor the second set of instructions as the second set of instructions is processed by the computer processor after the first set of instructions is processed by the computer processor;
• map a corresponding one of the loop-unrolled instructions in each of the iteration groups of the second set of instructions to a stride-tracking record that is shared by the corresponding loop-unrolled instructions;
• and
• prefetch data into a cache memory of the computer processor based on the stride-tracking record,
• wherein the second set of instructions immediately follows the first set of instructions in a parent set of instructions that includes the first set of instructions and the second set of instructions.