[LLVMdev] PNaCl Bitcode reference manual

[Dan Gohman]

Hi Eli,

Recently, I proposed some changes to LLVM to do more lowering of illegal
types (like i128 or i17) and other things within the LLVM IR layer, and the
proposal was roundly rejected by the LLVM community:

http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-April/061567.html

PNaCl is essentially doing what my proposal described. How do you expect to
reconcile the community's desire to avoid doing lowering on LLVM IR with
PNaCl's design that is built on doing lowering on LLVM IR?

Dan


On Tue, Jul 30, 2013 at 3:11 PM, Eli Bendersky <eliben at google.com> wrote:

> Hello,
>
> Following an earlier email (
> http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-June/063010.html), we've
> published an initial version of the PNaCl bitcode reference manual online -
> http://www.chromium.org/nativeclient/pnacl/bitcode-abi. The PNaCl bitcode
> is a restricted subset of LLVM IR.
>
> The reference manual is quite terse, so for the bigger picture I'll repost
> links to the design document:
> * PDF:
> https://docs.google.com/a/chromium.org/viewer?a=v&pid=sites&srcid=Y2hyb21pdW0ub3JnfGRldnxneDo0OWYwZjVkYWFjOWNjODE1
> * Text:
> https://sites.google.com/a/chromium.org/dev/nativeclient/pnacl/stability-of-the-pnacl-bitcode-abi
>
> Any comments would be most welcome. If anything isn't clear, please speak
> up - we intend to improve the documentation incrementally. We're also
> working on better formatting, so consider this an early preview :)
>
> Eli
>
>
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