[LLVMdev] Register Spilling and SSA
dag at cray.com
Thu Jan 14 14:35:27 PST 2010
On Thursday 14 January 2010 15:56, ST wrote:
> I just stumbled upon this paper. While i just skimmed over it it seems as
> if the authors say that their algorithm is more efficient than the llvm 2.3
> algorithm? So i thought that might be interesting?
Don't trust it. The abstract clearly states they're counting the number of
dynamic spills. That has almost nothing to do with performance.
Someone would have to reproduce their experiment to verify that performance
And alas, our field is notoriously unscientific in this respect.
Reproducability of experiments is nonexistant.
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