From: Haicheng Wu <haicheng@codeaurora.org>
Date: Mon, 12 Jun 2017 16:34:19 +0000 (+0000)
Subject: [Falkor] Enable SW Prefetch.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e66f5f3fddd5400f066ac5d5dfad3019d4735d26;p=llvm

[Falkor] Enable SW Prefetch.

SW prefetch is good for Falkor.

Differential Revision: http://reviews.llvm.org/D34084

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305199 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/AArch64/AArch64Subtarget.cpp b/lib/Target/AArch64/AArch64Subtarget.cpp
index d3cab1ad339..a9a9d5ce842 100644
--- a/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -92,6 +92,10 @@ void AArch64Subtarget::initializeProperties() {
     MaxInterleaveFactor = 4;
     // FIXME: remove this to enable 64-bit SLP if performance looks good.
     MinVectorRegisterBitWidth = 128;
+    CacheLineSize = 128;
+    PrefetchDistance = 820;
+    MinPrefetchStride = 2048;
+    MaxPrefetchIterationsAhead = 8;
     break;
   case Kryo:
     MaxInterleaveFactor = 4;