Adam Nemet b4954720ad [LoopDataPrefetch/Aarch64] Allow selective prefetching of large-strided accesses ...

Summary:
And use this TTI for Cyclone.  As it was explained in the original RFC
(http://thread.gmane.org/gmane.comp.compilers.llvm.devel/92758), the HW
prefetcher work up to 2KB strides.

I am also adding tests for this and the previous change (D17943):

* Cyclone prefetching accesses with a large stride
* Cyclone not prefetching accesses with a small stride
* Generic Aarch64 subtarget not prefetching either

Reviewers: hfinkel

Subscribers: aemerson, rengolin, llvm-commits, mzolotukhin

Differential Revision: http://reviews.llvm.org/D17945

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263771 91177308-0d34-0410-b5e6-96231b3b80d8

2016-03-18 00:27:38 +00:00

..

AArch64

[LoopDataPrefetch/Aarch64] Allow selective prefetching of large-strided accesses

2016-03-18 00:27:38 +00:00

PowerPC

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