[llvm] r280819 - [LoopInterchange] Improve debug output. NFC.

[Chad Rosier via llvm-commits]

Author: mcrosier
Date: Wed Sep  7 10:56:59 2016
New Revision: 280819

URL: http://llvm.org/viewvc/llvm-project?rev=280819&view=rev
Log:
[LoopInterchange] Improve debug output. NFC.

Modified:
    llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp?rev=280819&r1=280818&r2=280819&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp Wed Sep  7 10:56:59 2016
@@ -122,11 +122,11 @@ static bool populateDependencyMatrix(Cha
         if (D->isFlow()) {
           // TODO: Handle Flow dependence.Check if it is sufficient to populate
           // the Dependence Matrix with the direction reversed.
-          DEBUG(dbgs() << "Flow dependence not handled");
+          DEBUG(dbgs() << "Flow dependence not handled\n");
           return false;
         }
         if (D->isAnti()) {
-          DEBUG(dbgs() << "Found Anti dependence \n");
+          DEBUG(dbgs() << "Found Anti dependence\n");
           unsigned Levels = D->getLevels();
           char Direction;
           for (unsigned II = 1; II <= Levels; ++II) {
@@ -278,7 +278,9 @@ static bool isLegalToInterChangeLoops(Ch
 
 static void populateWorklist(Loop &L, SmallVector<LoopVector, 8> &V) {
 
-  DEBUG(dbgs() << "Calling populateWorklist called\n");
+  DEBUG(dbgs() << "Calling populateWorklist on Func: "
+               << L.getHeader()->getParent()->getName() << " Loop: %"
+               << L.getHeader()->getName() << '\n');
   LoopVector LoopList;
   Loop *CurrentLoop = &L;
   const std::vector<Loop *> *Vec = &CurrentLoop->getSubLoops();
@@ -296,6 +298,7 @@ static void populateWorklist(Loop &L, Sm
   }
   LoopList.push_back(CurrentLoop);
   V.push_back(std::move(LoopList));
+  DEBUG(dbgs() << "Worklist size = " << V.size() << "\n");
 }
 
 static PHINode *getInductionVariable(Loop *L, ScalarEvolution *SE) {
@@ -461,7 +464,6 @@ struct LoopInterchange : public Function
     for (Loop *L : *LI)
       populateWorklist(*L, Worklist);
 
-    DEBUG(dbgs() << "Worklist size = " << Worklist.size() << "\n");
     bool Changed = true;
     while (!Worklist.empty()) {
       LoopVector LoopList = Worklist.pop_back_val();