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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+39
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-39/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [LSR] Fix signed overflow in GenerateCrossUseConstantOffsets.Florian Hahn2019-03-281-0/+39
For the attached test case, unchecked addition of immediate starts and ends overflows, as they can be arbitrary i64 constants. Proof: https://rise4fun.com/Alive/Plqc Reviewers: qcolombet, gilr, efriedma Reviewed By: efriedma Differential Revision: https://reviews.llvm.org/D59218 llvm-svn: 357217
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