------- Comment #13 from tehila at il dot ibm dot com  2008-11-27 12:20 -------
(In reply to comment #12)

Thanks, Andrey.
I think there are 2 "issues" here:
1. register-renaming. (more related to this PR, I think)
2. schuedule-insns.
Both of them slows compilation.
With ARG4, on SPU, I see:
-O1: 9m28.355s
-O1 -fno-rename-registers:    0m19.196s

-O2: 184m37.492s (not >1000 as I wrote, but >100)
-O2 -fno-rename-registers: 31m29.482s
-O2 -fno-schedule-insns:  10m26.851s
-O2 -fno-rename-registers -fno-schedule-insns: 0m39.425s

Should I open a different PR for scheduling?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31850

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