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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+15
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-15/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [DCE] Salvage debug info from dead instsVedant Kumar2018-02-151-4/+8
| | | | | | | This results in small increases in the size of the .debug_loc section and the number of unique source variables in a stage2 build of opt. llvm-svn: 325301
* PM: Port DCE to the new pass managerJustin Bogner2016-04-221-0/+11
Also add a very basic test, since apparently there aren't any tests for DCE whatsoever to add the new pass version to. llvm-svn: 267196
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