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D380 caused fft2 regressions

When I got rid of the hand-unboxing in GHC.List, I missed the fact that a take helper function took an unboxed value and was therefore strict. When I changed that to a regular function, I didn't make it strict, and this caused a regression in fft2 and (I believe) also a test suite perf test. The function is properly strictified in D390.

Trac metadata
Trac field Value
Version 7.8.3
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions D390
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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