Displaying 5 results from an estimated 5 matches for "neghbours".
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neighbours
2007 Aug 06
0
[LLVMdev] Spillers
...tion doesn't support such
"clever" spilling.
Anyway, this precoloring doesn't force allocation algorithms to be
non-iterative. In my implementation of optimistic register coloring I
precolor spill intervals at the beginning of each iteration and thus don't
have to spill their neghbours specifically. It was done automatically by
Select phase of algorithm.
As Fernando has mentioned while I was writing this after the last iteration
of your algorithm before you call Spiller::runOnMachineFunction method every
interval in VirtRegMap must be mapped to a physical register, both spill an...
2007 Aug 06
4
[LLVMdev] Spillers
...ver since I started getting
involved.
> Anyway, this precoloring doesn't force allocation algorithms to be
> non-iterative. In my implementation of optimistic register coloring I
> precolor spill intervals at the beginning of each iteration and thus don't
> have to spill their neghbours specifically. It was done automatically by
> Select phase of algorithm.
So how did you get around the requirement of the spillers that intervals
be mapped to physical registers? Or did you not use the provided spillers?
That may be what I end up doing. Loads and stores don't absolutely ha...
2007 Aug 06
5
[LLVMdev] Spillers
Can someone explain the theory behind the spillers in VirtRegMap.cpp?
It seems as though the spillers do triple duty:
- Insert load/store operations and/or fold instructions as necessary to carry
out spills
- Rewrite the spilled virtual registers to use machine registers (mapping
given by the caller in the VRM).
- Rewrite machine code to change virtual registers to physical registers
2007 Aug 07
0
[LLVMdev] Spillers
...involved.
>
> > Anyway, this precoloring doesn't force allocation algorithms to be
> > non-iterative. In my implementation of optimistic register coloring I
> > precolor spill intervals at the beginning of each iteration and thus
> don't
> > have to spill their neghbours specifically. It was done automatically by
> > Select phase of algorithm.
>
> So how did you get around the requirement of the spillers that intervals
> be mapped to physical registers? Or did you not use the provided
> spillers?
> That may be what I end up doing. Loads and s...
2006 Oct 17
2
Calculate NAs from known data: how to?
Hi
In a dataset I have length and age for cod. The age, however, is ony
given for 40-100% of the fish. What I need to do is to fill inn the NAs
in a correct way, so that age has a value for each length. This is to be
done for each sample seperately (there are 324 samples), meaning the NAs
for sampleno 1 shall be calculated from the known values from sampleno 1.
As for example length 55 cm