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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+26
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-26/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [LoopUnroll] Fix a test. REQUIRE should be REQUIRES.Davide Italiano2017-05-121-1/+1
| | | | | | Found by inspection. llvm-svn: 302909
* [LoopUnroll] Don't try to unroll non canonical loops.Davide Italiano2017-04-241-0/+26
The current Loop Unroll implementation works with loops having a single latch that contains a conditional branch to a block outside the loop (the other successor is, by defition of latch, the header). If this precondition doesn't hold, avoid unrolling the loop as the code is not ready to handle such circumstances. Differential Revision: https://reviews.llvm.org/D32261 llvm-svn: 301239
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