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Author SHA1 Message Date
Aditya Nandakumar 3d0c46d489 Reassociate: Reprocess RedoInsts after each inst 
Previously the RedoInsts was processed at the end of the block.
However it was possible that it left behind some instructions that
were not canonicalized.
This should guarantee that any previous instruction in the basic
block is canonicalized before we process a new instruction.

llvm-svn: 258830
 2016-01-26 18:42:36 +00:00
Owen Anderson 2de9f545aa Add intermediate subtract instructions to reassociation worklist. 
We sometimes create intermediate subtract instructions during
reassociation.  Adding these to the worklist to revisit exposes many
additional reassociation opportunities.

Patch by Aditya Nandakumar.

llvm-svn: 253240
 2015-11-16 18:07:30 +00:00