Change errs() to dbgs().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92608 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index 0c19133ed15665b181e2da4a73621a2517b3c6a0..9ffe6d1b8f0cf299e45a502ac6d4ed1f2c6ac995 100644 (file)
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -436,7 +436,7 @@ bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val){
     if (Metrics.NumInsts > Threshold ||
         Metrics.NumBlocks * 5 > Threshold ||
         Metrics.NeverInline) {
-      DEBUG(errs() << "NOT unswitching loop %"
+      DEBUG(dbgs() << "NOT unswitching loop %"
             << currentLoop->getHeader()->getName() << ", cost too high: "
             << currentLoop->getBlocks().size() << "\n");
       return false;
@@ -522,7 +522,7 @@ void LoopUnswitch::EmitPreheaderBranchOnCondition(Value *LIC, Constant *Val,
 void LoopUnswitch::UnswitchTrivialCondition(Loop *L, Value *Cond, 
                                             Constant *Val, 
                                             BasicBlock *ExitBlock) {
-  DEBUG(errs() << "loop-unswitch: Trivial-Unswitch loop %"
+  DEBUG(dbgs() << "loop-unswitch: Trivial-Unswitch loop %"
         << loopHeader->getName() << " [" << L->getBlocks().size()
         << " blocks] in Function " << L->getHeader()->getParent()->getName()
         << " on cond: " << *Val << " == " << *Cond << "\n");
@@ -581,7 +581,7 @@ void LoopUnswitch::SplitExitEdges(Loop *L,
 void LoopUnswitch::UnswitchNontrivialCondition(Value *LIC, Constant *Val, 
                                                Loop *L) {
   Function *F = loopHeader->getParent();
-  DEBUG(errs() << "loop-unswitch: Unswitching loop %"
+  DEBUG(dbgs() << "loop-unswitch: Unswitching loop %"
         << loopHeader->getName() << " [" << L->getBlocks().size()
         << " blocks] in Function " << F->getName()
         << " when '" << *Val << "' == " << *LIC << "\n");
@@ -707,7 +707,7 @@ static void RemoveFromWorklist(Instruction *I,
 static void ReplaceUsesOfWith(Instruction *I, Value *V, 
                               std::vector<Instruction*> &Worklist,
                               Loop *L, LPPassManager *LPM) {
-  DEBUG(errs() << "Replace with '" << *V << "': " << *I);
+  DEBUG(dbgs() << "Replace with '" << *V << "': " << *I);
 
   // Add uses to the worklist, which may be dead now.
   for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
@@ -769,7 +769,7 @@ void LoopUnswitch::RemoveBlockIfDead(BasicBlock *BB,
     return;
   }
 
-  DEBUG(errs() << "Nuking dead block: " << *BB);
+  DEBUG(dbgs() << "Nuking dead block: " << *BB);
   
   // Remove the instructions in the basic block from the worklist.
   for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
@@ -968,7 +968,7 @@ void LoopUnswitch::SimplifyCode(std::vector<Instruction*> &Worklist, Loop *L) {
     
     // Simple DCE.
     if (isInstructionTriviallyDead(I)) {
-      DEBUG(errs() << "Remove dead instruction '" << *I);
+      DEBUG(dbgs() << "Remove dead instruction '" << *I);
       
       // Add uses to the worklist, which may be dead now.
       for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
@@ -1029,7 +1029,7 @@ void LoopUnswitch::SimplifyCode(std::vector<Instruction*> &Worklist, Loop *L) {
         if (!SinglePred) continue;  // Nothing to do.
         assert(SinglePred == Pred && "CFG broken");
 
-        DEBUG(errs() << "Merging blocks: " << Pred->getName() << " <- " 
+        DEBUG(dbgs() << "Merging blocks: " << Pred->getName() << " <- " 
               << Succ->getName() << "\n");
         
         // Resolve any single entry PHI nodes in Succ.
@@ -1057,7 +1057,7 @@ void LoopUnswitch::SimplifyCode(std::vector<Instruction*> &Worklist, Loop *L) {
         // remove dead blocks.
         break;  // FIXME: Enable.
 
-        DEBUG(errs() << "Folded branch: " << *BI);
+        DEBUG(dbgs() << "Folded branch: " << *BI);
         BasicBlock *DeadSucc = BI->getSuccessor(CB->getZExtValue());
         BasicBlock *LiveSucc = BI->getSuccessor(!CB->getZExtValue());
         DeadSucc->removePredecessor(BI->getParent(), true);