[PATCH] D21261: [CFLAA] Code cleanup: group all graph-building codes into one class

[Jia Chen via llvm-commits]

grievejia created this revision.
grievejia added reviewers: george.burgess.iv, hfinkel.
grievejia added a subscriber: llvm-commits.

This patch introduce no functionality changes.

It added a new class CFLGraphBuilder which groups together all codes related to graph building. This change effectively reduce the number of arguments for functions like "buildGraphFrom()", "addInstructionToGraph()", etc. 

http://reviews.llvm.org/D21261

Files:
  lib/Analysis/CFLAliasAnalysis.cpp

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