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On Sun, 2006-06-04 at 11:49 -0500, Chris Lattner wrote: > On Sun, 4 Jun 2006, Vladimir Prus wrote: > > say I've a LLVM module with a call instruction. The called function is > > "pure", that is it has no side-effects at all. How can I communicate this > > to LLVM, so that the function call can be removed if the return value is > > never used? > >

On Sun, 4 Jun 2006, Reid Spencer wrote: > That's a bit of a hack. Can we not deduce "pure" functions > conservatively? Yes, and we do. > Basically, anything that doesn't do any load or store > outside of its parameters and no malloc or free? Maybe a few other > constraints. Sounds fairly easy to deduce and might be useful for > optimization. We already do

...ould be compiled with LLVM :) Reid. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20060604/ba8fbf41/attachment.sig>