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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+77
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-77/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [LoopUnroll] Don't crash trying to unroll loop with EH pad exitDavid Majnemer2016-06-151-0/+77
We do not support splitting cleanuppad or catchswitches. This is problematic for passes which assume that a loop is in loop simplify form (the loop would have a dedicated exit block instead of sharing it). While it isn't great that we don't support this for cleanups, we still cannot make loop-simplify form an assertable precondition because indirectbr will also disable these sorts of CFG cleanups. This fixes PR28132. llvm-svn: 272739
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