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3 Commits

Author SHA1 Message Date
Chris Lattner 5187cfcf03 Merge Operation into OperationInst and standardize nomenclature around 
OperationInst.  This is a big mechanical patch.

This is step 16/n towards merging instructions and statements, NFC.

PiperOrigin-RevId: 227093712
 2019-03-29 14:42:23 -07:00
Chris Lattner a30f7ec74f Fix some minor typos pointed out by rxwei 
PiperOrigin-RevId: 221474217
 2019-03-29 13:57:31 -07:00
Chris Lattner 86a5323f04 - Simplify PatternMatch to *require* static benefits at pattern construction 
time.  The "Fast and Flexible Instruction Selection With Constraints" paper
  from CC2018 makes a credible argument that dynamic costs aren't actually
  necessary/important, and we are not using them.

- Check in my "MLIR Generic DAG Rewriter Infrastructure" design doc into the
  source tree.

PiperOrigin-RevId: 221017546
 2019-03-29 13:54:38 -07:00