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Author SHA1 Message Date
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass."" 
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
 2019-04-17 04:52:47 +00:00
Eric Christopher 71d1cca7ef Temporarily Revert "Add basic loop fusion pass." 
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
 2019-04-17 02:12:23 +00:00
Michael Kuperstein 8718b01fcb [LV] Run loop-simplify and LCSSA explicitly instead of "requiring" them 
This changes the vectorizer to explicitly use the loopsimplify and lcssa utils,
instead of "requiring" the transformations as if they were analyses.

This is not NFC, since it changes the LCSSA behavior - we no longer run LCSSA
for all loops, but rather only for the loops we expect to modify.

Differential Revision: https://reviews.llvm.org/D28868

llvm-svn: 292456
 2017-01-19 00:42:28 +00:00