袁立威 wrote: > Hi, I'm a guy working with gcc4.1.1 on itanium2. In my work, some > instrumentations are added by gcc. After instrumentation, all > specint2000 benchmarks except gzip can successfully run with > optimization flag -O3. There are some information list below: No answer from me but hopefully following suggestion useful. Your information posted here may not be sufficient for root cause analysis. Posting the full patch will be more helpful.
As to the failure itself. Suggest you reduce the it a small case, or at least find out exactly with function in gzip is miscompiled and split that function. It might not the scheduling problem. Finding exactly which instruction in .s is wrong will help tracing back to problem in your patch. Thanks - Joey