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* [X86] Replace -mcpu with -mattr on some tests.Craig Topper2019-09-061-1/+1
| | | | llvm-svn: 371260
* [LoopVectorize][X86] Clamp interleave factor if we have a known constant ↵Craig Topper2019-08-071-15/+35
| | | | | | | | | | | | trip count that is less than VF*interleave If we know the trip count, we should make sure the interleave factor won't cause the vectorized loop to exceed it. Improves one of the cases from PR42674 Differential Revision: https://reviews.llvm.org/D65896 llvm-svn: 368215
* [LoopVectorize][X86] Add test case for missed vectorization from PR42674.Craig Topper2019-08-071-0/+41
We do end vectorizing the code, but use an interleave factor that is too high and causes the vector code to be dead. llvm-svn: 368197
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