diff --git a/lib/Target/SparcV9/SparcV9TargetMachine.cpp b/lib/Target/SparcV9/SparcV9TargetMachine.cpp
index 9a4ab4bbebd..a0a5ba9183f 100644
--- a/lib/Target/SparcV9/SparcV9TargetMachine.cpp
+++ b/lib/Target/SparcV9/SparcV9TargetMachine.cpp
@@ -178,10 +178,8 @@ SparcV9TargetMachine::addPassesToEmitAssembly(PassManager &PM, std::ostream &Out
   PM.add(createPreSelectionPass(*this));
   PM.add(createLowerSelectPass());
 
-  // Run basic LLVM dataflow optimizations, to clean up after pre-selection.
-  //PM.add(createReassociatePass());
-  //PM.add(createLICMPass());
-  //PM.add(createGCSEPass());
+  // Clean up after pre-selection.
+  PM.add(createReassociatePass());
 
   // If the user's trying to read the generated code, they'll need to see the
   // transformed input.
@@ -269,11 +267,8 @@ void SparcV9JITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
   PM.add(createPreSelectionPass(TM));
   PM.add(createLowerSelectPass());
 
-  // Run basic LLVM dataflow optimizations, to clean up after pre-selection.
+  // Clean up after pre-selection.
   PM.add(createReassociatePass());
-  // FIXME: these passes crash the FunctionPassManager when being added...
-  //PM.add(createLICMPass());
-  //PM.add(createGCSEPass());
 
   // If the user's trying to read the generated code, they'll need to see the
   // transformed input.