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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+116
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-116/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [MergeFuncs] Generate alias instead of thunk if possibleNikita Popov2018-11-211-0/+116
The MergeFunctions pass was originally intended to emit aliases instead of thunks where possible (unnamed_addr). However, for a long time this functionality was behind a flag hardcoded to false, bitrotted and was eventually removed in r309313. Originally the functionality was first disabled in r108417 due to lack of support for aliases in Mach-O. I believe that this is no longer the case nowadays, but not really familiar with this area. In the interest of being conservative, this patch reintroduces the aliasing functionality behind a default disabled -mergefunc-use-aliases flag. Differential Revision: https://reviews.llvm.org/D53285 llvm-svn: 347407
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