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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+42
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-42/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [MergeFunc] Erase unused duplicate functions if they are discardableVedant Kumar2019-01-111-1/+13
| | | | | | | | | | MergeFunc only deletes unused duplicate functions if they have local linkage, but it should be safe to relax this to any "discardable if unused" linkage type. Differential Revision: https://reviews.llvm.org/D56574 llvm-svn: 350939
* MergeFunctions: Impose a total order on the replacement of functionsArnold Schwaighofer2015-06-091-0/+30
We don't want to replace function A by Function B in one module and Function B by Function A in another module. If these functions are marked with linkonce_odr we would end up with a function stub calling B in one module and a function stub calling A in another module. If the linker decides to pick these two we will have two stubs calling each other. rdar://21265586 llvm-svn: 239367
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