Junmo Park 6ebdc14cf1 [SCEVExpander] Make findExistingExpansion smarter ...

Summary:
Extending findExistingExpansion can use existing value in ExprValueMap.
This patch gives 0.3~0.5% performance improvements on 
benchmarks(test-suite, spec2000, spec2006, commercial benchmark)
   
Reviewers: mzolotukhin, sanjoy, zzheng

Differential Revision: http://reviews.llvm.org/D15559

llvm-svn: 260938

2016-02-16 06:46:58 +00:00

17 KiB

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