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Author SHA1 Message Date
Eric Christopher cee313d288 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 a863435128 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 Zolotukhin b2738e41bf [LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its original value. 
As agreed in post-commit review of r265388, I'm switching the flag to
its original value until the 90% runtime performance regression on
SingleSource/Benchmarks/Stanford/Bubblesort is addressed.

llvm-svn: 277524
 2016-08-02 21:24:14 +00:00
David L Kreitzer 188de5ae69 Adds the ability to use an epilog remainder loop during loop unrolling and makes 
this the default behavior.

Patch by Evgeny Stupachenko (evstupac@gmail.com).

Differential Revision: http://reviews.llvm.org/D18158

llvm-svn: 265388
 2016-04-05 12:19:35 +00:00
Wei Mi bf727ba371 Add another InstCombine pass after LoopUnroll. 
This is to cleanup some redundency generated by LoopUnroll pass. Such redundency may not be cleaned up by existing passes after LoopUnroll.

Differential Revision: http://reviews.llvm.org/D9777

llvm-svn: 237395
 2015-05-14 22:02:54 +00:00