diff --git a/opts/ClassIMPCache.cpp b/opts/ClassIMPCache.cpp
index d99e371..a407bf6 100644
--- a/opts/ClassIMPCache.cpp
+++ b/opts/ClassIMPCache.cpp
@@ -8,9 +8,12 @@
 #include "llvm/Support/CallSite.h"
 #include "llvm/Support/IRBuilder.h"
 #include "llvm/Analysis/LoopInfo.h"
+#include "llvm/DefaultPasses.h"
+#include "ObjectiveCOpts.h"
 #include "IMPCacher.h"
 #include <string>
 
+using namespace GNUstep;
 using namespace llvm;
 using std::string;
 
@@ -83,6 +86,15 @@ namespace
   char ClassIMPCachePass::ID = 0;
   RegisterPass<ClassIMPCachePass> X("gnu-class-imp-cache", 
           "Cache IMPs for class messages");
+#if LLVM_MAJOR > 2
+  StandardPass::RegisterStandardPass<ClassIMPCachePass> D(
+        StandardPass::Module, &NonfragileIvarID,
+        StandardPass::OptimzationFlags(2, 0, 0, StandardPass::OptimizeSize),
+        &ClassIMPCacheID);
+  StandardPass::RegisterStandardPass<ClassIMPCachePass> L(StandardPass::LTO,
+      &NonfragileIvarID, StandardPass::OptimzationFlags(0),
+      &ClassIMPCacheID);
+#endif
 }
 
 ModulePass *createClassIMPCachePass(void)
diff --git a/opts/ClassLookupCache.cpp b/opts/ClassLookupCache.cpp
index cfb5b79..648d71b 100644
--- a/opts/ClassLookupCache.cpp
+++ b/opts/ClassLookupCache.cpp
@@ -101,7 +101,7 @@ namespace
           removeTerminator(beforeLookupBB);
           removeTerminator(lookupBB);
 
-		  PHINode *phi = CreatePHI(clsTy, 2, cls, afterLookupBB->begin());
+          PHINode *phi = CreatePHI(clsTy, 2, cls, afterLookupBB->begin());
           // We replace all of the existing uses with the PHI node now, because
           // we're going to add some more uses later that we don't want
           // replaced.
@@ -150,7 +150,8 @@ namespace
 #if LLVM_MAJOR > 2
   StandardPass::RegisterStandardPass<ClassLookupCachePass> D(
         StandardPass::Module, &LoopIMPCacheID,
-        StandardPass::OptimzationFlags(1), &ClassLookupCacheID);
+        StandardPass::OptimzationFlags(1, 0, 0, StandardPass::OptimizeSize),
+        &ClassLookupCacheID);
   StandardPass::RegisterStandardPass<ClassLookupCachePass> L(StandardPass::LTO,
       &LoopIMPCacheID, StandardPass::OptimzationFlags(0),
       &ClassLookupCacheID);
diff --git a/opts/ClassMethodInliner.cpp b/opts/ClassMethodInliner.cpp
index 5a45278..7319081 100644
--- a/opts/ClassMethodInliner.cpp
+++ b/opts/ClassMethodInliner.cpp
@@ -42,7 +42,6 @@ namespace
     ClassMethodInliner() : ModulePass(ID) {}
 
     virtual bool runOnModule(Module &M) {
-        return false;
       unsigned MessageSendMDKind = M.getContext().getMDKindID("GNUObjCMessageSend");
       InlineCostAnalyzer CA;
       SmallPtrSet<const Function *, 16> NeverInline;
@@ -105,7 +104,8 @@ namespace
 #if LLVM_MAJOR > 2
   StandardPass::RegisterStandardPass<ClassMethodInliner> D(
         StandardPass::Module, &ClassLookupCacheID,
-        StandardPass::OptimzationFlags(1), &ClassMethodInlinerID);
+        StandardPass::OptimzationFlags(3, 0, 0, StandardPass::OptimizeSize),
+        &ClassMethodInlinerID);
   StandardPass::RegisterStandardPass<ClassMethodInliner> L(StandardPass::LTO,
       &ClassLookupCacheID, StandardPass::OptimzationFlags(0),
       &ClassMethodInlinerID);
diff --git a/opts/LoopIMPCachePass.cpp b/opts/LoopIMPCachePass.cpp
index 43b101f..fba2f39 100644
--- a/opts/LoopIMPCachePass.cpp
+++ b/opts/LoopIMPCachePass.cpp
@@ -89,10 +89,11 @@ namespace
           "Cache IMPs in loops pass");
 #if LLVM_MAJOR > 2
   StandardPass::RegisterStandardPass<GNULoopIMPCachePass> D(
-        StandardPass::Module, &NonfragileIvarID,
-        StandardPass::OptimzationFlags(1), &LoopIMPCacheID);
+        StandardPass::Module, &ClassIMPCacheID,
+        StandardPass::OptimzationFlags(2, 0, 0, StandardPass::OptimizeSize),
+        &LoopIMPCacheID);
   StandardPass::RegisterStandardPass<GNULoopIMPCachePass> L(StandardPass::LTO,
-      &NonfragileIvarID, StandardPass::OptimzationFlags(0),
+      &ClassIMPCacheID, StandardPass::OptimzationFlags(0),
       &LoopIMPCacheID);
 #endif
 }