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Author SHA1 Message Date
Sjoerd Meijer ea31ddb36f [ARM] Implement TTI::getMemcpyCost 
This implements TargetTransformInfo method getMemcpyCost, which estimates the
number of instructions to which a memcpy instruction expands to.

Differential Revision: https://reviews.llvm.org/D59787

llvm-svn: 359547
 2019-04-30 10:28:50 +00:00
Sjoerd Meijer 633fb0f266 [TTI] getMemcpyCost 
This adds new function getMemcpyCost to TTI so that the cost of a memcpy can be
modeled and queried. The default implementation returns Expensive, but targets
can override this function to model the cost more accurately.

Differential Revision: https://reviews.llvm.org/D59252

llvm-svn: 356555
 2019-03-20 14:15:46 +00:00