Displaying 4 results from an estimated 4 matches for "maxlookahead".
2011 Nov 28
0
[LLVMdev] [llvm-commits] Bottom-Up Scheduling?
...that Hybrid
> scheduling is enabled, EmitInstruction seems never to be called (at
> least it is not called when running any PPC codegen test in the
> regression-test collection).
Hal,
Since PPCHazardRecognizer is not derived from ScoreboardHazardRecognizer, you'll need to initialize MaxLookAhead to the max depth of your target's itinerary.
See how this is done in the ScoreboardHazardRecognizer ctor:
> MaxLookAhead = ScoreboardDepth;
-Andy
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2011 Nov 29
2
[LLVMdev] [llvm-commits] Bottom-Up Scheduling?
...struction seems never to be called (at
> > least it is not called when running any PPC codegen test in the
> > regression-test collection).
>
>
> Hal,
>
>
> Since PPCHazardRecognizer is not derived from
> ScoreboardHazardRecognizer, you'll need to initialize MaxLookAhead to
> the max depth of your target's itinerary.
Andy,
Thanks! Since I have to change PPCHazardRecognizer for bottom-up support
anyway, is there any reason not to have it derive from
ScoreboardHazardRecognizer at this point? It looks like the custom
bundling logic could be implemented on top...
2011 Nov 28
2
[LLVMdev] [llvm-commits] Bottom-Up Scheduling?
On Tue, 2011-11-22 at 13:27 -0600, Hal Finkel wrote:
> On Tue, 2011-10-25 at 21:00 -0700, Andrew Trick wrote:
> > On Oct 25, 2011, at 6:01 PM, Hal Finkel wrote:
> > > Is there documentation somewhere for the bottom-up scheduling? I'm
> > > trying to figure out what changes are necessary in order to support it
> > > in the PPC backend.
> > >
>
2011 Nov 29
0
[LLVMdev] [llvm-commits] Bottom-Up Scheduling?
...gt; > least it is not called when running any PPC codegen test in the
> > > regression-test collection).
> >
> >
> > Hal,
> >
> >
> > Since PPCHazardRecognizer is not derived from
> > ScoreboardHazardRecognizer, you'll need to initialize MaxLookAhead to
> > the max depth of your target's itinerary.
>
> Andy,
>
> Thanks! Since I have to change PPCHazardRecognizer for bottom-up support
> anyway, is there any reason not to have it derive from
> ScoreboardHazardRecognizer at this point? It looks like the custom
> bu...