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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+24
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-24/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* Adds the ability to use an epilog remainder loop during loop unrolling and makesDavid L Kreitzer2016-04-051-3/+3
| | | | | | | | | | this the default behavior. Patch by Evgeny Stupachenko (evstupac@gmail.com). Differential Revision: http://reviews.llvm.org/D18158 llvm-svn: 265388
* [LoopUnroll] Use undef for phis with no value liveDavid Majnemer2015-07-011-0/+24
We would create a phi node with a zero initialized operand instead of undef in the case where no value was originally available. This was problematic for x86_mmx which has no null value. llvm-svn: 241143
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