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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+49
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-49/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [SimplifyCFG] Fix a debug invariant bug in FoldBranchToCommonDest()David Stenberg2018-05-181-0/+49
Summary: Fix a case where FoldBranchToCommonDest() would bail out from doing CSE when encountering a debug intrinsic. Handle that by skipping past the debug intrinsics. Also, as a minor refactoring, rename checkCSEInPredecessor() to tryCSEWithPredecessor() to make it a bit more clear that the function may remove instructions. Reviewers: fhahn, craig.topper, dblaikie, xbolva00 Reviewed By: fhahn, xbolva00 Subscribers: vsk, davide, llvm-commits Differential Revision: https://reviews.llvm.org/D46635 llvm-svn: 332698
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