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Author SHA1 Message Date
Quentin Colombet
ea18933d97 [X86] Implement TargetLowering::getScalingFactorCost hook. 
Scaling factors are not free on X86 because every "complex" addressing mode
breaks the related instruction into 2 allocations instead of 1.

<rdar://problem/16730541>

llvm-svn: 207301
 2014-04-26 01:11:26 +00:00