llvm dev - Jun 2012 - [LLVMdev] Upgrading from llvm 2.8 to 3.0/3.1

Hi,

I am working on upgrading our compiler backend from llvm 2.8 to 3.0/3.1. I
have been reading the release docs, llvm blogs etc that talk about the type
system rewrite, exception handling rewrite, new register allocators etc to
know the changes. One of our major concerns is that even though our
compiler's run time has boosted a lot, thanks to llvm, our compile time is
pretty high. I searched for info related to compile time and run time
improvements for the releases but couldn't find one. It would be great if
one could point me out to these docs, if any.

-Chethan
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> I am working on upgrading our compiler backend from llvm 2.8 to 3.0/3.1. I
have
> been reading the release docs, llvm blogs etc that talk about the type
system
> rewrite, exception handling rewrite, new register allocators etc to know
the
> changes. One of our major concerns is that even though our compiler's
run time
> has boosted a lot, thanks to llvm, our compile time is pretty high. I
searched
> for info related to compile time and run time improvements for the releases
but
> couldn't find one. It would be great if one could point me out to these
docs,
> if any.
  I don't know we have such information on the release note. You can post
your
result, and let others comment on the higher compile time however.

Regards,
chenwj

-- 
Wei-Ren Chen (陳韋任)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667
Homepage: http://people.cs.nctu.edu.tw/~chenwj