[AArch64] Vulcan is now ThunderXT99

Broadcom Vulcan is now Cavium ThunderX2T99.

LLVM Bugzilla: http://bugs.llvm.org/show_bug.cgi?id=32113

Minor fixes for the alignments of loops and functions for
ThunderX T81/T83/T88 (better performance).

Patch was tested with SpecCPU2006.

Patch by Stefan Teleman

Differential Revision: https://reviews.llvm.org/D30510


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297190 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 3 deletions

diff --git a/lib/Target/AArch64/AArch64Subtarget.cpp b/lib/Target/AArch64/AArch64Subtarget.cpp
index 2ee0193cdeb..a9222c43476 100644
--- a/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -81,16 +81,22 @@ void AArch64Subtarget::initializeProperties() {
     MinPrefetchStride = 1024;
     MaxPrefetchIterationsAhead = 11;
     break;
-  case Vulcan:
+  case ThunderX2T99:
+    CacheLineSize = 64;
+    PrefFunctionAlignment = 3;
+    PrefLoopAlignment = 2;
     MaxInterleaveFactor = 4;
+    PrefetchDistance = 128;
+    MinPrefetchStride = 1024;
+    MaxPrefetchIterationsAhead = 4;
     break;
   case ThunderX:
   case ThunderXT88:
   case ThunderXT81:
   case ThunderXT83:
     CacheLineSize = 128;
-    PrefFunctionAlignment = 4;
-    PrefLoopAlignment = 4;
+    PrefFunctionAlignment = 3;
+    PrefLoopAlignment = 2;
     break;
   case CortexA35: break;
   case CortexA53: break;