1 files changed, 1 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
index 95a3b3d7c81..b94dd69deb7 100644
--- a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -245,10 +245,7 @@ static bool IsPrefix(const ArgPromotion::IndicesVector &Prefix,
                      const ArgPromotion::IndicesVector &Longer) {
   if (Prefix.size() > Longer.size())
     return false;
-  for (unsigned i = 0, e = Prefix.size(); i != e; ++i)
-    if (Prefix[i] != Longer[i])
-      return false;
-  return true;
+  return std::equal(Prefix.begin(), Prefix.end(), Longer.begin());
 }