Fix some comment typos.

llvm-svn: 244402
diff --git a/llvm/lib/Transforms/Scalar/LICM.cpp b/llvm/lib/Transforms/Scalar/LICM.cpp
index bcc05c3..76848c7 100644
--- a/llvm/lib/Transforms/Scalar/LICM.cpp
+++ b/llvm/lib/Transforms/Scalar/LICM.cpp
@@ -402,7 +402,7 @@
 }
 
 /// Computes loop safety information, checks loop body & header
-/// for the possiblity of may throw exception.
+/// for the possibility of may throw exception.
 ///
 void llvm::computeLICMSafetyInfo(LICMSafetyInfo * SafetyInfo, Loop * CurLoop) {
   assert(CurLoop != nullptr && "CurLoop cant be null");
@@ -410,7 +410,7 @@
   // Setting default safety values.
   SafetyInfo->MayThrow = false;
   SafetyInfo->HeaderMayThrow = false;
-  // Iterate over header and compute dafety info.
+  // Iterate over header and compute safety info.
   for (BasicBlock::iterator I = Header->begin(), E = Header->end();
        (I != E) && !SafetyInfo->HeaderMayThrow; ++I)
     SafetyInfo->HeaderMayThrow |= I->mayThrow();