[SystemZ] Enable LoopDataPrefetch pass.
Loop data prefetching has shown some improvements on benchmarks, and is
enabled at -O1 and above.
Review: Ulrich Weigand
llvm-svn: 308024
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
index cb81c0e..025bf73 100644
--- a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
@@ -143,8 +143,10 @@
} // end anonymous namespace
void SystemZPassConfig::addIRPasses() {
- if (getOptLevel() != CodeGenOpt::None)
+ if (getOptLevel() != CodeGenOpt::None) {
addPass(createSystemZTDCPass());
+ addPass(createLoopDataPrefetchPass());
+ }
TargetPassConfig::addIRPasses();
}