diff --git a/libcxx/src/new.cpp b/libcxx/src/new.cpp
--- a/libcxx/src/new.cpp
+++ b/libcxx/src/new.cpp
@@ -130,8 +130,7 @@
 void
 operator delete(void* ptr) _NOEXCEPT
 {
-    if (ptr)
-        ::free(ptr);
+    ::free(ptr);
 }
 
 _LIBCPP_WEAK
@@ -252,9 +251,7 @@
 void
 operator delete(void* ptr, std::align_val_t) _NOEXCEPT
 {
-    if (ptr) {
-        std::__libcpp_aligned_free(ptr);
-    }
+    std::__libcpp_aligned_free(ptr);
 }
 
 _LIBCPP_WEAK
diff --git a/libcxxabi/src/stdlib_new_delete.cpp b/libcxxabi/src/stdlib_new_delete.cpp
--- a/libcxxabi/src/stdlib_new_delete.cpp
+++ b/libcxxabi/src/stdlib_new_delete.cpp
@@ -214,9 +214,7 @@
 void
 operator delete(void* ptr, std::align_val_t) _NOEXCEPT
 {
-    if (ptr) {
-        std::__libcpp_aligned_free(ptr);
-    }
+    std::__libcpp_aligned_free(ptr);
 }
 
 _LIBCXXABI_WEAK