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Re: Scheduling and inserting NOPs
Boris Boesler writes:
> Am 21.11.2007 um 18:07 schrieb Andrew Haley:
>
> > Is there some special reason you can't do this in machine dependent
> > reorg? That seems like the obvious place. Just walk every basic
> > block stuffing NOPs.
>
> The problem isn't where, it's how. The insn-list after scheduling
> doesn't provide any information about cycles or delays, does it? How
> do I find out before which insn I have to insert a NOP, if the
> scheduler doesn't pass any info to me?
Walk the instructions in each BB, and if you see a violation stuff a NOP.
This is so simple that I'm wondering if there's something important
that I'm failing to understand.
Andrew.
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