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Author SHA1 Message Date
Dan Gohman 9130bad71f Extend the AliasAnalysis::pointsToConstantMemory interface to allow it 
to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.

llvm-svn: 118412
 2010-11-08 16:45:26 +00:00
Dan Gohman da85ed8541 Move NoAA out of BasicAliasAnalysis.cpp into its own file, now that 
it doesn't have a special relationship with BasicAliasAnalysis
anymore.

llvm-svn: 116876
 2010-10-19 23:09:08 +00:00