Make CoreTidy retain deadness info (better -ddump-simpl)
authorsimonpj@microsoft.com <unknown>
Fri, 5 Dec 2008 10:05:18 +0000 (10:05 +0000)
committersimonpj@microsoft.com <unknown>
Fri, 5 Dec 2008 10:05:18 +0000 (10:05 +0000)
commit410fc617555117dd0ebbb3854f2d335628d60ea9
treedb0af8f0ad7fd6aab48e90818f5c813b281621b0
parentf44b39926869cd9b9a33f06ee807f7c664fd20c8
Make CoreTidy retain deadness info (better -ddump-simpl)

GHC now retains more robust information about dead variables; but
CoreTidy was throwing it away.  This patch makes CoreTidy retain it,
which gives better output for -ddump-simpl.

New opportunity: shrink interface files by using wildcards for dead variables.
compiler/coreSyn/CoreTidy.lhs