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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+85
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-85/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [LoopUnroll] Switch the default value of -unroll-runtime-epilog back to its ↵Michael Zolotukhin2016-08-021-4/+4
| | | | | | | | | | 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
* Adds the ability to use an epilog remainder loop during loop unrolling and makesDavid L Kreitzer2016-04-051-4/+4
| | | | | | | | | | this the default behavior. Patch by Evgeny Stupachenko (evstupac@gmail.com). Differential Revision: http://reviews.llvm.org/D18158 llvm-svn: 265388
* Add another InstCombine pass after LoopUnroll.Wei Mi2015-05-141-0/+85
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
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