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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+33
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-33/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [InstCombine, NewGVN] remove FP undef from testsSanjay Patel2018-03-081-2/+2
| | | | | | | | I'm trying to preserve the intent of these tests by using non-undef operands; if we fix FP undef folding these tests will not pass. llvm-svn: 327004
* NewGVN: Don't propagate over phi backedges where undef causes us toDaniel Berlin2017-04-141-0/+33
have >1 value, unless we can prove the phi node is cycle free. Fixes PR 32607. llvm-svn: 300299
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