[llvm] r305199 - [Falkor] Enable SW Prefetch.

[Haicheng Wu via llvm-commits]

Author: haicheng
Date: Mon Jun 12 11:34:19 2017
New Revision: 305199

URL: http://llvm.org/viewvc/llvm-project?rev=305199&view=rev
Log:
[Falkor] Enable SW Prefetch.

SW prefetch is good for Falkor.

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

Modified:
    llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp

Modified: llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp?rev=305199&r1=305198&r2=305199&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp Mon Jun 12 11:34:19 2017
@@ -92,6 +92,10 @@ void AArch64Subtarget::initializePropert
     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;