On Thu, Dec 6, 2012 at 4:04 PM, Simon Marlow <marlo...@gmail.com> wrote:
> On 05/12/12 15:17, Brandon Allbery wrote: > >> Probably none; on most platforms you're actually generating different >> code (dynamic libraries require generation of position-independent >> > Sure there's a lot of differences in the generated code, but inside GHC > these differences only appear at the very last stage of the pipeline, > native code generation (or LLVM). All the stages up to that can be shared, > which accounts for roughly 80% of compilation time (IIRC). > I was assuming it would be difficult to separate those stages of the internal compilation pipeline out, given previous discussions of how said pipeline works. (In particular I was under the impression saving/restoring state in the pipeline to rerun the final phase with multiple code generators was not really possible, and multithreading them concurrently even less so.) -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
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