#4101: Primitive constant unfolding
---------------------------------+------------------------------------------
Reporter: malosh | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.12.2 | Keywords:
Os: Unknown/Multiple | Testcase:
Architecture: x86 | Failure: Runtime performance bug
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Examining the core generated by ghc with -O2 on a numerical code, I saw
things like :
case GHC.Prim.<## x_aB9 (GHC.Prim.**## 2.0 -1021.0) of _ {...
This code being executed each time my code performs an addition ! GHC does
not seem to unfold the constants right with at least **##. By the way, it
should definitely be possible to specify a Double# constant in
hexadecimal.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4101>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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