ARM: do not export loopbound helper instructions

lib/Target/ARM/ARMExport.cpp

@@ -99,7 +99,6 @@ namespace llvm {
 
   void ARMMachineExport::serialize(MachineFunction &MF)
   {
-    errs() << "foo\n";
     yaml::PMLDoc &YDoc = getPMLDoc();
     Function* F = const_cast<Function*>(MF.getFunction());
     MachineLoopInfo &MLI(P.getAnalysis<MachineLoopInfo>(*F));
@@ -132,7 +131,6 @@ namespace llvm {
       MachineLoop *Loop = MLI.getLoopFor(&(*BB));
       if (Loop && Loop->getHeader() == BB) {
         exportLoopInfo(MF, YDoc, Loop);
-        errs() << "bar\n";
       }
       while (Loop) {
         B->Loops.push_back(yaml::Name(Loop->getHeader()->getNumber()));
@@ -150,6 +148,10 @@ namespace llvm {
           IsBundled = false;
         }
 
+        // do not export loop bound helper instructions
+        if (Ins->isPseudo() && getOpcode(Ins).getName() == "PSEUDO_LOOPBOUND")
+          continue;
+  
         if (!doExportInstruction(&(*Ins))) { Index++; continue; }
   
         yaml::MachineInstruction *I = B->addInstruction(
@@ -167,9 +169,7 @@ namespace llvm {
   
     // TODO: we do not compute a hash yet
     PMF->Hash = StringRef("0");
-    errs() << "baz\n";
     YDoc.addMachineFunction(PMF);
-    errs() << "baz\n";
   }
 
 } // end namespace llvm