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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+122
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-122/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [LV/LAA] Avoid specializing a loop for stride=1 when this predicate implies aDorit Nuzman2017-11-051-0/+122
single-iteration loop This fixes PR34681. Avoid adding the "Stride == 1" predicate when we know that Stride >= Trip-Count. Such a predicate will effectively optimize a single or zero iteration loop, as Trip-Count <= Stride == 1. Differential Revision: https://reviews.llvm.org/D38785 llvm-svn: 317438
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