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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+204
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-204/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [HotColdSplit] Disable splitting for sanitized functionsVedant Kumar2019-02-261-0/+72
| | | | | | | | | | Splitting can make sanitizer errors harder to understand, as the trapping instruction may not be in the function where the bug was detected. rdar://48142697 llvm-svn: 354931
* [HotColdSplit] Mark inherently cold functions as suchVedant Kumar2019-01-191-0/+31
| | | | | | | | | | If an inherently cold function is found, mark it as cold. For now this means applying the `cold` and `minsize` attributes. As a drive-by, revisit and clean up the criteria for considering a function for splitting. Add tests. llvm-svn: 351623
* [HotColdSplit] Simplify tests by lowering their splitting thresholdsVedant Kumar2019-01-171-0/+101
This gets rid of the brittle/mysterious calls to @sink()/@sideeffect() peppered throughout the test cases. They are no longer needed to force splitting to occur. llvm-svn: 351480
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