#5252: UNPACK without optimisation leads to panic
---------------------------+------------------------------------------------
Reporter: simonpj | Owner:
Type: bug | Status: closed
Priority: normal | Milestone:
Component: Compiler | Version: 7.0.3
Resolution: fixed | Keywords:
Testcase: | Blockedby:
Difficulty: | Os: Unknown/Multiple
Blocking: | Architecture: Unknown/Multiple
Failure: None/Unknown |
---------------------------+------------------------------------------------
Changes (by simonpj):
* status: new => closed
* resolution: => fixed
Comment:
Fixed by
{{{
commit 792449f555bb4dfa8e718079f6d42dc9babe938a
Author: Simon Peyton Jones <[email protected]>
Date: Sat Jun 11 14:26:34 2011 +0100
Ignore UNPACK pragmas with OmitInterfacePragmas is on (fixes Trac
#5252)
The point here is that if a data type chooses a representation that
unpacks an argument field, the representation of the argument field
must be visible to clients. And it may not be if OmitInterfacePragmas
is on.
>---------------------------------------------------------------
compiler/typecheck/TcInstDcls.lhs | 3 +-
compiler/typecheck/TcTyClsDecls.lhs | 44
+++++++++++++++++-----------------
2 files changed, 23 insertions(+), 24 deletions(-)
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5252#comment:1>
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