2 files changed, 7 insertions, 1 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
index cb81c0e5276..025bf73d2df 100644
--- a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
@@ -143,8 +143,10 @@ public:
 } // end anonymous namespace
 
 void SystemZPassConfig::addIRPasses() {
-  if (getOptLevel() != CodeGenOpt::None)
+  if (getOptLevel() != CodeGenOpt::None) {
     addPass(createSystemZTDCPass());
+    addPass(createLoopDataPrefetchPass());
+  }
 
   TargetPassConfig::addIRPasses();
 }
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.h b/llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.h
index 6923fc6fc91..a0c6fa94f8c 100644
--- a/llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.h
+++ b/llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.h
@@ -56,6 +56,10 @@ public:
   unsigned getNumberOfRegisters(bool Vector);
   unsigned getRegisterBitWidth(bool Vector) const;
 
+  unsigned getCacheLineSize() { return 256; }
+  unsigned getPrefetchDistance() { return 2000; }
+  unsigned getMinPrefetchStride() { return 2048; }
+
   bool prefersVectorizedAddressing() { return false; }
   bool supportsEfficientVectorElementLoadStore() { return true; }
   bool enableInterleavedAccessVectorization() { return true; }