#5807: DPH library functions don't work without -fvectorise.
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Reporter: benl | Owner: benl
Type: bug | Status: new
Priority: normal | Component: Data Parallel
Haskell
Version: 7.2.2 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: Incorrect result at runtime | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by benl):
DPH programs only work when compiled with -fvectorise. Without
-fvectorise, the library exports dummy, place-holder functions that don't
have full implementations. We use place-holders instead of simply throwing
'error' because these functions need to have the same strictness
properties as the real ones. This is mentioned at
http://www.haskell.org/haskellwiki/GHC/Data_Parallel_Haskell
I'm leaving this bug open to remind us to replace the dummy place-holders
with real code at some stage. There would be no point running this code
for performance reasons, but at least it will be less confusing.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5807#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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