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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+71
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-71/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [CodeExtractor] Emit lifetime markers around reloads of outputsVedant Kumar2019-01-191-0/+3
| | | | | | | | | | | | | | | | CodeExtractor permits extracting a region of blocks from a function even when values defined within the region are used outside of it. This is typically done by creating an alloca in the original function and reloading the alloca after a call to the extracted function. Wrap the reload in lifetime start/end markers to promote stack coloring. Suggested by Sergei Kachkov! Differential Revision: https://reviews.llvm.org/D56045 llvm-svn: 351621
* [HotColdSplit] Allow outlining with live outputsVedant Kumar2019-01-171-0/+68
Prior to r348205, extracting code regions with live output values was disabled because of a miscompilation (PR39433). Lift the restriction as PR39433 has been addressed. Tested on LNT+externals, on a run of check-llvm in a stage2 build, and with a full build of iOS (with hot/cold splitting enabled). As a drive-by, remove an errant TODO. llvm-svn: 351492
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