Chris Lattner 196c166a06 Enhance heap sra to be substantially more aggressive w.r.t PHI
nodes.  This allows it to do fairly general phi insertion if a 
load from a pointer global wants to be SRAd but the load is used
by (recursive) phi nodes.  This fixes a pessimization on ppc
introduced by Load PRE.

llvm-svn: 61123
2008-12-17 05:28:49 +00:00
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2008-04-19 22:32:52 +00:00
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