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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+65
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-65/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [ValueTracking, InstSimplify] extend isKnownNonZero() to handle vector constantsSanjay Patel2016-05-241-21/+5
| | | | | | | | | | | | | Similar in spirit to D20497 : If all elements of a constant vector are known non-zero, then we can say that the whole vector is known non-zero. It seems like we could extend this to FP scalar/vector too, but isKnownNonZero() says it only works for integers and pointers for now. Differential Revision: http://reviews.llvm.org/D20544 llvm-svn: 270562
* [InstSimplify] add vector tests for isKnownNonZeroSanjay Patel2016-05-231-0/+81
llvm-svn: 270498
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