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Re: Dependences for call-preserved regs on exposed pipeline target?
On 11/26/12 12:46, Maxim Kuvyrkov wrote:
> I wonder if "kludgy fixups" refers to the dummy-instruction solution I mentioned above. The complete dependence graph is a myth. You cannot have a complete dependence graph for a function -- scheduler works on DAG regions (and I doubt it will ever support anything more complex), so you would have to do something to account for inter-region dependencies anyway.
>
> It is simpler to have a unified solution that would handle both inter- and intra-region dependencies, rather than implementing two different approaches.
I retract any implication that your bypass proposal is a kludge. I found using
bypasses to be very compact and effective. Thanks for the extra nudge.
G