On Thu, Mar 6, 2014 at 1:06 PM, Simon Peyton Jones wrote:

What is this file?

nofib/real/HMMS/lib/haskell/Builtin.hi

It's a mystery! Can we delete it?

I think it's safe to assume that it was added by mistake. David even tried to remove it once: tmp/ghc/nofib$ git log real/HMMS/lib/haskell/Builtin.hi commit af36a39eed2e598c1f4c49dd726d3732b53b0f46 Author: David Terei Date: Thu Jan 19 12:29:04 2012 -0800 Revert "Move benchmarks into benchmark/ subdir." This reverts commit 0449cb065437fc8014b6669e5f1c2c8f4a926d16. Conflicts: .gitignore commit 0449cb065437fc8014b6669e5f1c2c8f4a926d16 Author: David Terei Date: Tue Jan 17 10:53:12 2012 -0800 Move benchmarks into benchmark/ subdir. commit 0bd88c95b14252969c9dd0a5eaa9da219af5f85f Author: partain <unknown> Date: Mon Jan 8 20:13:28 1996 +0000 [project @ 1996-01-08 20:13:28 by partain] Initial revision