I spent a little time the other day building all of Hackage with GHC HEAD.
Here's a quick writeup of what I found.
Total packages: 5564
Succeeded with 7.6.3: 3234
Succeeded with HEAD: 2061
Succeeded with 7.6.3 *but failed with HEAD: 1186*
(A few dozen packages built with HEAD, but not with 7.6.3,
On Sun, Sep 29, 2013 at 9:10 PM, wrote:
> +isPrelude :: ImportDecl Name -> Bool
> +isPrelude = (== "Prelude") . moduleNameString . unLoc . ideclName
Can't you just do unLoc (ideclName imp) == pRELUDE_NAME here?
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On Sun, Sep 29, 2013 at 2:56 PM, GHC wrote:
> According to the results, sadly the 5% performance gain in compile time
> was complete bogus. Sorry. =(
>
Does anyone have any insight into why?
How can a future benchmark avoid such bogusity? The only -- I might add,
implicit -- rec is to run thi