On 11/10/20 4:42 AM, Xu Chenghua wrote: > > Hi: > > This patch reduce reservation of model do not more than 10 cycles. The > memory of genautomata down to 1GB.
How bad is the memory consumption before this change? > > ChangeLog > > gcc/ > PR target/77510 > * config/mips/gs464.md: Reduce reservation > duration to 10 cycles. > * config/mips/i6400.md: Likewise. > * config/mips/m5100.md: Likewise. > * config/mips/p5600.md: Likewise. > * config/mips/p6600.md: Likewise. > * config/mips/xlp.md: Likewise. > * config/mips/xlr.md: Likewise. I doubt there's a measurable performance penalty for not fully modeling the latency of these instructions, but I'm quite hesitant to ACK this change without hearing from others in the MIPS space. Alternately, if the affected models aren't being sold anymore, then I wouldn't worry about getting feedback on them. Jeff
