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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+35
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-35/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [InstCombine, ARM, AArch64] Convert table lookup to shuffle vectorAlexandros Lamprineas2018-05-301-0/+35
Turning a table lookup intrinsic into a shuffle vector instruction can be beneficial. If the mask used for the lookup is the constant vector {7,6,5,4,3,2,1,0}, then the back-end generates byte reverse instructions instead. Differential Revision: https://reviews.llvm.org/D46133 llvm-svn: 333550
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