LICM: Remove trailing white spaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134521 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 32 insertions, 32 deletions

diff --git a/lib/Transforms/Scalar/LICM.cpp b/lib/Transforms/Scalar/LICM.cpp
index 3185db4bfb..fc1ecf784e 100644
--- a/lib/Transforms/Scalar/LICM.cpp
+++ b/lib/Transforms/Scalar/LICM.cpp
@@ -178,7 +178,7 @@ INITIALIZE_PASS_END(LICM, "licm", "Loop Invariant Code Motion", false, false)
 Pass *llvm::createLICMPass() { return new LICM(); }
 
 /// Hoist expressions out of the specified loop. Note, alias info for inner
-/// loop is not preserved so it is not a good idea to run LICM multiple 
+/// loop is not preserved so it is not a good idea to run LICM multiple
 /// times on one loop.
 ///
 bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
@@ -199,13 +199,13 @@ bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
 
     // What if InnerLoop was modified by other passes ?
     CurAST->add(*InnerAST);
-    
+
     // Once we've incorporated the inner loop's AST into ours, we don't need the
     // subloop's anymore.
     delete InnerAST;
     LoopToAliasSetMap.erase(InnerL);
   }
-  
+
   CurLoop = L;
 
   // Get the preheader block to move instructions into...
@@ -245,7 +245,7 @@ bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
          I != E; ++I)
       PromoteAliasSet(*I);
   }
-  
+
   // Clear out loops state information for the next iteration
   CurLoop = 0;
   Preheader = 0;
@@ -283,7 +283,7 @@ void LICM::SinkRegion(DomTreeNode *N) {
 
   for (BasicBlock::iterator II = BB->end(); II != BB->begin(); ) {
     Instruction &I = *--II;
-    
+
     // If the instruction is dead, we would try to sink it because it isn't used
     // in the loop, instead, just delete it.
     if (isInstructionTriviallyDead(&I)) {
@@ -336,7 +336,7 @@ void LICM::HoistRegion(DomTreeNode *N) {
         I.eraseFromParent();
         continue;
       }
-      
+
       // Try hoisting the instruction out to the preheader.  We can only do this
       // if all of the operands of the instruction are loop invariant and if it
       // is safe to hoist the instruction.
@@ -364,7 +364,7 @@ bool LICM::canSinkOrHoistInst(Instruction &I) {
     // in the same alias set as something that ends up being modified.
     if (AA->pointsToConstantMemory(LI->getOperand(0)))
       return true;
-    
+
     // Don't hoist loads which have may-aliased stores in loop.
     uint64_t Size = 0;
     if (LI->getType()->isSized())
@@ -470,7 +470,7 @@ void LICM::sink(Instruction &I) {
     }
     return;
   }
-  
+
   if (ExitBlocks.empty()) {
     // The instruction is actually dead if there ARE NO exit blocks.
     CurAST->deleteValue(&I);
@@ -482,30 +482,30 @@ void LICM::sink(Instruction &I) {
     I.eraseFromParent();
     return;
   }
-  
+
   // Otherwise, if we have multiple exits, use the SSAUpdater to do all of the
   // hard work of inserting PHI nodes as necessary.
   SmallVector<PHINode*, 8> NewPHIs;
   SSAUpdater SSA(&NewPHIs);
-  
+
   if (!I.use_empty())
     SSA.Initialize(I.getType(), I.getName());
-  
+
   // Insert a copy of the instruction in each exit block of the loop that is
   // dominated by the instruction.  Each exit block is known to only be in the
   // ExitBlocks list once.
   BasicBlock *InstOrigBB = I.getParent();
   unsigned NumInserted = 0;
-  
+
   for (unsigned i = 0, e = ExitBlocks.size(); i != e; ++i) {
     BasicBlock *ExitBlock = ExitBlocks[i];
-    
+
     if (!DT->dominates(InstOrigBB, ExitBlock))
       continue;
-    
+
     // Insert the code after the last PHI node.
     BasicBlock::iterator InsertPt = ExitBlock->getFirstNonPHI();
-    
+
     // If this is the first exit block processed, just move the original
     // instruction, otherwise clone the original instruction and insert
     // the copy.
@@ -519,12 +519,12 @@ void LICM::sink(Instruction &I) {
         New->setName(I.getName()+".le");
       ExitBlock->getInstList().insert(InsertPt, New);
     }
-    
+
     // Now that we have inserted the instruction, inform SSAUpdater.
     if (!I.use_empty())
       SSA.AddAvailableValue(ExitBlock, New);
   }
-  
+
   // If the instruction doesn't dominate any exit blocks, it must be dead.
   if (NumInserted == 0) {
     CurAST->deleteValue(&I);
@@ -533,7 +533,7 @@ void LICM::sink(Instruction &I) {
     I.eraseFromParent();
     return;
   }
-  
+
   // Next, rewrite uses of the instruction, inserting PHI nodes as needed.
   for (Value::use_iterator UI = I.use_begin(), UE = I.use_end(); UI != UE; ) {
     // Grab the use before incrementing the iterator.
@@ -542,12 +542,12 @@ void LICM::sink(Instruction &I) {
     ++UI;
     SSA.RewriteUseAfterInsertions(U);
   }
-  
+
   // Update CurAST for NewPHIs if I had pointer type.
   if (I.getType()->isPointerTy())
     for (unsigned i = 0, e = NewPHIs.size(); i != e; ++i)
       CurAST->copyValue(&I, NewPHIs[i]);
-  
+
   // Finally, remove the instruction from CurAST.  It is no longer in the loop.
   CurAST->deleteValue(&I);
 }
@@ -616,7 +616,7 @@ namespace {
       : LoadAndStorePromoter(Insts, S, 0, 0), SomePtr(SP),
         PointerMustAliases(PMA), LoopExitBlocks(LEB), AST(ast), DL(dl),
         Alignment(alignment) {}
-    
+
     virtual bool isInstInList(Instruction *I,
                               const SmallVectorImpl<Instruction*> &) const {
       Value *Ptr;
@@ -626,7 +626,7 @@ namespace {
         Ptr = cast<StoreInst>(I)->getPointerOperand();
       return PointerMustAliases.count(Ptr);
     }
-    
+
     virtual void doExtraRewritesBeforeFinalDeletion() const {
       // Insert stores after in the loop exit blocks.  Each exit block gets a
       // store of the live-out values that feed them.  Since we've already told
@@ -664,7 +664,7 @@ void LICM::PromoteAliasSet(AliasSet &AS) {
   if (AS.isForwardingAliasSet() || !AS.isMod() || !AS.isMustAlias() ||
       AS.isVolatile() || !CurLoop->isLoopInvariant(AS.begin()->getValue()))
     return;
-  
+
   assert(!AS.empty() &&
          "Must alias set should have at least one pointer element in it!");
   Value *SomePtr = AS.begin()->getValue();
@@ -679,7 +679,7 @@ void LICM::PromoteAliasSet(AliasSet &AS) {
   //    tmp = *P;  for () { if (c) tmp +=1; } *P = tmp;
   //
   // is not safe, because *P may only be valid to access if 'c' is true.
-  // 
+  //
   // It is safe to promote P if all uses are direct load/stores and if at
   // least one is guaranteed to be executed.
   bool GuaranteedToExecute = false;
@@ -697,20 +697,20 @@ void LICM::PromoteAliasSet(AliasSet &AS) {
   for (AliasSet::iterator ASI = AS.begin(), E = AS.end(); ASI != E; ++ASI) {
     Value *ASIV = ASI->getValue();
     PointerMustAliases.insert(ASIV);
-    
+
     // Check that all of the pointers in the alias set have the same type.  We
     // cannot (yet) promote a memory location that is loaded and stored in
     // different sizes.
     if (SomePtr->getType() != ASIV->getType())
       return;
-    
+
     for (Value::use_iterator UI = ASIV->use_begin(), UE = ASIV->use_end();
          UI != UE; ++UI) {
       // Ignore instructions that are outside the loop.
       Instruction *Use = dyn_cast<Instruction>(*UI);
       if (!Use || !CurLoop->contains(Use))
         continue;
-      
+
       // If there is an non-load/store instruction in the loop, we can't promote
       // it.
       unsigned InstAlignment;
@@ -740,7 +740,7 @@ void LICM::PromoteAliasSet(AliasSet &AS) {
 
       if (!GuaranteedToExecute)
         GuaranteedToExecute = isSafeToExecuteUnconditionally(*Use);
-      
+
       LoopUses.push_back(Use);
     }
   }
@@ -748,9 +748,9 @@ void LICM::PromoteAliasSet(AliasSet &AS) {
   // If there isn't a guaranteed-to-execute instruction, we can't promote.
   if (!GuaranteedToExecute)
     return;
-  
+
   // Otherwise, this is safe to promote, lets do it!
-  DEBUG(dbgs() << "LICM: Promoting value stored to in loop: " <<*SomePtr<<'\n');  
+  DEBUG(dbgs() << "LICM: Promoting value stored to in loop: " <<*SomePtr<<'\n');
   Changed = true;
   ++NumPromoted;
 
@@ -762,13 +762,13 @@ void LICM::PromoteAliasSet(AliasSet &AS) {
 
   SmallVector<BasicBlock*, 8> ExitBlocks;
   CurLoop->getUniqueExitBlocks(ExitBlocks);
-  
+
   // We use the SSAUpdater interface to insert phi nodes as required.
   SmallVector<PHINode*, 16> NewPHIs;
   SSAUpdater SSA(&NewPHIs);
   LoopPromoter Promoter(SomePtr, LoopUses, SSA, PointerMustAliases, ExitBlocks,
                         *CurAST, DL, Alignment);
-  
+
   // Set up the preheader to have a definition of the value.  It is the live-out
   // value from the preheader that uses in the loop will use.
   LoadInst *PreheaderLoad =