[llvm] r305199 - [Falkor] Enable SW Prefetch.
Haicheng Wu via llvm-commits
llvm-commits at lists.llvm.org
Mon Jun 12 09:34:19 PDT 2017
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;
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