diff options
author | Adam Nemet <anemet@apple.com> | 2016-03-18 00:27:38 +0000 |
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committer | Adam Nemet <anemet@apple.com> | 2016-03-18 00:27:38 +0000 |
commit | b4954720ad2de9738586961e6aa3fd7c6291a659 (patch) | |
tree | 4f7e610f663eb9e873dbfee7d6c8305684820d7b /lib/Analysis/TargetTransformInfo.cpp | |
parent | bbb72f5976f13e5197c23e76563beb32db66cbbc (diff) |
[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
Diffstat (limited to 'lib/Analysis/TargetTransformInfo.cpp')
-rw-r--r-- | lib/Analysis/TargetTransformInfo.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Analysis/TargetTransformInfo.cpp b/lib/Analysis/TargetTransformInfo.cpp index bd957898834..8fd9fbf8196 100644 --- a/lib/Analysis/TargetTransformInfo.cpp +++ b/lib/Analysis/TargetTransformInfo.cpp @@ -223,6 +223,10 @@ unsigned TargetTransformInfo::getPrefetchDistance() const { return TTIImpl->getPrefetchDistance(); } +unsigned TargetTransformInfo::getMinPrefetchStride() const { + return TTIImpl->getMinPrefetchStride(); +} + unsigned TargetTransformInfo::getMaxInterleaveFactor(unsigned VF) const { return TTIImpl->getMaxInterleaveFactor(VF); } |