I'm working with a machine that has a memory-increment insn. It's a network-processor performance hack that allows no-latency accumulation of statistical counters. The insn sends the increment and address to the memory controller which does the add, avoiding the usual long-latency read-increment-write cycle. I would like to persuade GCC to emit this insn. Maybe it could be done in the combiner? Do any GCC ports have this feature?
Greg
