diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 8edf7f4..7b181a0 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -741,8 +741,8 @@
                                       FunctionType::ExtInfo info,
                      ArrayRef<FunctionProtoType::ExtParameterInfo> paramInfos,
                                       RequiredArgs required) {
-  assert(std::all_of(argTypes.begin(), argTypes.end(),
-                     [](CanQualType T) { return T.isCanonicalAsParam(); }));
+  assert(llvm::all_of(argTypes,
+                      [](CanQualType T) { return T.isCanonicalAsParam(); }));
 
   // Lookup or create unique function info.
   llvm::FoldingSetNodeID ID;