Index: lib/Analysis/ThreadSafetyCommon.cpp
===================================================================
--- lib/Analysis/ThreadSafetyCommon.cpp
+++ lib/Analysis/ThreadSafetyCommon.cpp
@@ -846,7 +846,7 @@
 
 
 void SExprBuilder::enterCFGBlock(const CFGBlock *B) {
-  // Intialize TIL basic block and add it to the CFG.
+  // Initialize TIL basic block and add it to the CFG.
   CurrentBB = lookupBlock(B);
   CurrentBB->reservePredecessors(B->pred_size());
   Scfg->add(CurrentBB);
Index: lib/Analysis/ThreadSafetyTIL.cpp
===================================================================
--- lib/Analysis/ThreadSafetyTIL.cpp
+++ lib/Analysis/ThreadSafetyTIL.cpp
@@ -186,8 +186,8 @@
 //
 // This sort assumes that (1) dominators have been computed, (2) there are no
 // critical edges, and (3) the entry block is reachable from the exit block
-// and no blocks are accessable via traversal of back-edges from the exit that
-// weren't accessable via forward edges from the entry.
+// and no blocks are accessible via traversal of back-edges from the exit that
+// weren't accessible via forward edges from the entry.
 int BasicBlock::topologicalFinalSort(SimpleArray<BasicBlock*>& Blocks, int ID) {
   // Visited is assumed to have been set by the topologicalSort.  This pass
   // assumes !Visited means that we've visited this node before.
Index: lib/Analysis/UninitializedValues.cpp
===================================================================
--- lib/Analysis/UninitializedValues.cpp
+++ lib/Analysis/UninitializedValues.cpp
@@ -788,7 +788,7 @@
 
 void TransferFunctions::VisitObjCMessageExpr(ObjCMessageExpr *ME) {
   // If the Objective-C message expression is an implicit no-return that
-  // is not modeled in the CFG, set the tracked dataflow values to Unknown.
+  // is not modelled in the CFG, set the tracked dataflow values to Unknown.
   if (objCNoRet.isImplicitNoReturn(ME)) {
     vals.setAllScratchValues(Unknown);
   }