diff --git a/src/coreclr/jit/morph.cpp b/src/coreclr/jit/morph.cpp
index 153f9b8bba8a82..3deada8eec085b 100644
--- a/src/coreclr/jit/morph.cpp
+++ b/src/coreclr/jit/morph.cpp
@@ -10807,8 +10807,6 @@ GenTree* Compiler::fgOptimizeHWIntrinsic(GenTreeHWIntrinsic* node)
         }
 
 #if defined(TARGET_XARCH)
-        case NI_AVX512F_Add:
-        case NI_AVX512BW_Add:
         case NI_AVX512F_And:
         case NI_AVX512DQ_And:
         case NI_AVX512F_AndNot:
@@ -10850,13 +10848,6 @@ GenTree* Compiler::fgOptimizeHWIntrinsic(GenTreeHWIntrinsic* node)
 
             switch (intrinsicId)
             {
-                case NI_AVX512F_Add:
-                case NI_AVX512BW_Add:
-                {
-                    maskIntrinsicId = NI_AVX512F_AddMask;
-                    break;
-                }
-
                 case NI_AVX512F_And:
                 case NI_AVX512DQ_And:
                 {