20 Oct
2006
20 Oct
'06
6:51 a.m.
Hello Simon, Friday, October 20, 2006, 1:38:39 PM, you wrote:
-O2 -funbox-strict-fields
I'm not sure that -funbox-strict-fields always improves performance,
we search for solution that improves performance ON AVERAGE
I like
-O2 -fliberate-case-threshold=30
but anything other that -O2 is really just guesswork (i.e. we haven't made any systematic measurements). You might also like -funfolding-use-threshold=50.
it's something like super-O2 optimization, with a trade-off between speed and program size -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com