[PHITransAddr] Use std::find instead of std::count

There is no need to visit all the elements if we are merely performing a
membership check.  NFCI.

llvm-svn: 238701
diff --git a/llvm/lib/Analysis/PHITransAddr.cpp b/llvm/lib/Analysis/PHITransAddr.cpp
index 177684f..71e2cdc 100644
--- a/llvm/lib/Analysis/PHITransAddr.cpp
+++ b/llvm/lib/Analysis/PHITransAddr.cpp
@@ -150,7 +150,8 @@
   if (!Inst) return V;
 
   // Determine whether 'Inst' is an input to our PHI translatable expression.
-  bool isInput = std::count(InstInputs.begin(), InstInputs.end(), Inst);
+  bool isInput =
+      std::find(InstInputs.begin(), InstInputs.end(), Inst) != InstInputs.end();
 
   // Handle inputs instructions if needed.
   if (isInput) {
@@ -276,7 +277,8 @@
           isNSW = isNUW = false;
 
           // If the old 'LHS' was an input, add the new 'LHS' as an input.
-          if (std::count(InstInputs.begin(), InstInputs.end(), BOp)) {
+          if (std::find(InstInputs.begin(), InstInputs.end(), BOp) !=
+              InstInputs.end()) {
             RemoveInstInputs(BOp, InstInputs);
             AddAsInput(LHS);
           }