#3942: Strange profiling behaviour in 6.10.4
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Reporter: simonpj | Owner: simonmar
Type: bug | Status: new
Priority: normal | Milestone: 6.14.1
Component: Compiler | Version: 6.10.4
Keywords: | Difficulty:
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: None/Unknown
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Comment(by guest):
I have done some further checking and removing the "-optc-O3" and "-optc-
ffast-math" flags (suggested
by Ian Lynagh) did not affect the result. In fact, removing all of the
ghc options in the cabal file had no effect.
I will try to reduce this to a standalone test case. I know that earlier
versions of nsyn compiled by ghc 6.8.3 and
using direct FFI calls to the Gnu Scientific Library linear algebra code
(instead of hmatrix) did profile correctly.
I had used an older version of nsyn as a test case for the "prof2dot"
program that converts a profile to a graphviz
dot file.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3942#comment:1>
GHC <http://www.haskell.org/ghc/>
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