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Re: Extreme PRE compile times
> >
> > Clearly PRE is still doing something that's not terribly intelligent given
> > that PRE + the increase the GC time accounts for 90% of the total
> > compilation time for this file.
Looking at the dumps, it looks (it's not finished yet) like all the
replacements it's performing are ones that could have been caught
by the dominator optimizers:
In BB 1, insert save of this.2_4528 + 2B to pretmp.12002_44554 before
statement T.4_4566 = pretmp.12002_44554
on line 417
In BB 15988, insert reload of this.2_4528 + 2B from pretmp.12002_44554 in
statement T.4_44534 = this.2_4528 + 2B;
on line 417
In BB 3, insert save of this.2_4528 + 4B to pretmp.12004_44563 before
statement T.6_4572 = pretmp.12004_44563
on line 417
In BB 15982, insert reload of this.2_4528 + 4B from pretmp.12004_44563 in
statement T.6_44520 = this.2_4528 + 4B;
None of these expressions are causing new phis to be inserted, which means
they aren't partially redundant.
I'm still profiling and whatnot to see what i can do.
--Dan