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Chris Lattner e7c14013f5 Fix isNegatibleForFree to not return true for ConstantFP nodes 
after legalize.  Just because a constant is legal (e.g. 0.0 in SSE) 
doesn't mean that its negated value is legal (-0.0).  We could make
this stronger by checking to see if the negated constant is actually
legal post negation, but it doesn't seem like a big deal.

llvm-svn: 47591
 		2008-02-26 07:04:54 +00:00
clang Fixed inverted condition. 2008-02-26 03:44:25 +00:00
llvm Fix isNegatibleForFree to not return true for ConstantFP nodes 2008-02-26 07:04:54 +00:00