GHC-6.4.1 much slower than GHC-6.4

[Mirko Rahn]

> Can you try with -fno-full-laziness (with both compilers).  I wonder if
> it's a "does this get floated out" issue.

Bit slower than without this flag:

6.4:   cpu-time interesting (3,3): 00:01:40.46
6.4.1: cpu-time interesting (3,3): 00:06:11.13

But the ratio keeps the same.

     Mirko

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