#6156: Optimiser bug on linux-powerpc
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Reporter: erikd | Owner: pcapriotti
Type: bug | Status: new
Priority: normal | Milestone: 7.6.1
Component: Compiler | Version: 7.4.1
Resolution: | Keywords:
Os: Linux | Architecture: powerpc
Failure: Incorrect result at runtime | Difficulty: Unknown
Testcase: | Blockedby:
Blocking: | Related:
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Comment(by erikd):
@simonpj : This is not a cryptocipher bug, its an GHC optimiser bug which
was first found in the cryptocipher package. The code in the original bug
report was a snippet of code from cryptocipher. Interestingly, the bug
only shows itself on PowerPC.
@pcapriotti : The testsuite file you updated
(tests/codeGen/should_run/T5900.hs) probably won't trigger this bug,
because in my testing, it would only appear when the function `fl`
appeared in a separate module. Maybe a cross module inlining problem?
Unfortunately I am not in a position to test this at the moment because
whenever I try to compile GHC HEAD from git, I hit bug #6167.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6156#comment:16>
GHC <http://www.haskell.org/ghc/>
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