Thu Dec 2 02:26:18 PST 2010 [email protected]
* Fix a nasty bug in RULE matching: Trac #4814
See Note [Matching lets], which explains it all in detail.
It took me a day to think of a nice way to fix the bug,
but I think the result is quite respectable. Subtle, though.
M ./compiler/basicTypes/VarEnv.lhs -4 +6
M ./compiler/coreSyn/CoreSubst.lhs -3 +25
M ./compiler/specialise/Rules.lhs -178 +234
View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc-7.0/ghc;a=darcs_commitdiff;h=20101202102618-1287e-2b9ac4e8d4e032dae6a7e0d341e3f32e0dc90d5d.gz
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