Also by my reading a patent derived from LLVM does not restrict either LLVM or ( the same thing ) its IR. The patent covers (only) processor-specific instructions and such forks and their subsidiary.

At the least, not its ideas.

Uninteresting, in our context.

I am an untitled intelligent reader. Pay me if you wish.

Ymmv.

On Wed, Jan 30, 2019, 10:21 PM Alfred Matthews <asm13243546@gmail.com> wrote:

@Saurabh thanks. Well done.

Are the patents each not effectively processor-specific?

At the very least, the LLVM and subsidiary IRs are of interest.

On Wed, Jan 30, 2019, 10:17 PM Flavio Villanustre <fvillanustre@gmail.com> wrote:

I'm no patent attorney either, but there is a temporal component when it comes to invalidating patents due to prior art, and Haskell is demonstrably "very prior" to these claims, even though it's not mentioned there. 

Only something that appeared after the patent was filed initially would potentially constitute infringement, as long as the claims made in the patent weren't made public by the inventors themselves prior to the filing, of course.

I guess, Haskell is safe and we live to see another day... :)

Flavio

On Wed, Jan 30, 2019, 21:51 Saurabh Nanda <saurabhnanda@gmail.com wrote:

Also, the wording seems to be sufficiently broad to cause some concern to Haskell & Rust compilers, but the compilation of two programs in two unrelated languages will probably prevent an infringement.

Actually, the teams working on languages like Eta, Kotlin, and Scala should be really worried about these series of patents and should get infringement analysis done by an experienced IP lawyer, and/or press for invalidation of these patents.

-- Saurabh.

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