#5747: Floating point error with -msse2
-----------------------------------------+----------------------------------
Reporter: augustss | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.2.1 | Keywords:
Os: Windows | Architecture: x86
Failure: Incorrect result at runtime | Testcase:
Blockedby: | Blocking:
Related: |
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Compile and run this program:
{{{
main = print (cos 0)
}}}
And you get
{{{
$ ghc -O2 -fforce-recomp -msse2 Main.hs
[1 of 1] Compiling Main ( Main.hs, Main.o )
Linking Main.exe ...
$ ./Main
5.249681779125557e-308
}}}
(This is a bug in ghc 7.2.2, but that 7.2.2 is not one of the available
version choices.)
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5747>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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