[g-arc-opts] Remove isInterestingInstruction. Its not useful or interesting.

Swift SVN r18583

lib/SILAnalysis/GlobalARCSequenceDataflow.cpp

@@ -26,22 +26,6 @@ using namespace swift::arc;
 //                                 Utilities
 //===----------------------------------------------------------------------===//
 
-#ifndef NDEBUG
-/// Small helper function for reducing the debug output generated by ignoring
-/// functions without interesting instructions.
-static bool isInterestingInstruction(ValueKind Kind) {
-  switch (Kind) {
-  default:
-    return false;
-  case ValueKind::RetainValueInst:
-  case ValueKind::ReleaseValueInst:
-  case ValueKind::StrongRetainInst:
-  case ValueKind::StrongReleaseInst:
-    return true;
-  }
-}
-#endif
-
 static bool isAutoreleasePoolCall(SILInstruction &I) {
   ApplyInst *AI = dyn_cast<ApplyInst>(&I);
   if (!AI)
@@ -164,16 +148,6 @@ processBBTopDown(ARCBBState &BBState,
 
   bool NestingDetected = false;
 
-#ifndef NDEBUG
-  // If we are in debug mode, to make the output less verbose, make sure we are
-  // actually processing something interesting before emitting any log output.
-  bool FoundOneInst = false;
-  for (auto &I : BB)
-    FoundOneInst |= isInterestingInstruction(I.getKind());
-  if (!FoundOneInst)
-    return NestingDetected;
-#endif
-
   // If the current BB is the entry BB, initialize a state corresponding to each
   // of its owned parameters.
   //
@@ -311,16 +285,6 @@ processBBBottomUp(ARCBBState &BBState,
 
   bool NestingDetected = false;
 
-#ifndef NDEBUG
-  // If we are in debug mode, to make the output less verbose, make sure we are
-  // actually processing something interesting before emitting any log output.
-  bool FoundOneInst = false;
-  for (auto &I : BB)
-    FoundOneInst |= isInterestingInstruction(I.getKind());
-  if (!FoundOneInst)
-    return NestingDetected;
-#endif
-
   // For each non terminator instruction I in BB visited in reverse...
   for (auto II = std::next(BB.rbegin()), IE = BB.rend(); II != IE;) {
     SILInstruction &I = *II;