diff --git a/llvm/lib/Target/WebAssembly/WebAssemblySetP2AlignOperands.cpp b/llvm/lib/Target/WebAssembly/WebAssemblySetP2AlignOperands.cpp
index 1422199..0d375d5 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblySetP2AlignOperands.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblySetP2AlignOperands.cpp
@@ -119,6 +119,8 @@
       case WebAssembly::ATOMIC_RMW8_U_XOR_I64:
       case WebAssembly::ATOMIC_RMW8_U_XCHG_I32:
       case WebAssembly::ATOMIC_RMW8_U_XCHG_I64:
+      case WebAssembly::ATOMIC_RMW8_U_CMPXCHG_I32:
+      case WebAssembly::ATOMIC_RMW8_U_CMPXCHG_I64:
       case WebAssembly::ATOMIC_RMW16_U_ADD_I32:
       case WebAssembly::ATOMIC_RMW16_U_ADD_I64:
       case WebAssembly::ATOMIC_RMW16_U_SUB_I32:
@@ -131,6 +133,8 @@
       case WebAssembly::ATOMIC_RMW16_U_XOR_I64:
       case WebAssembly::ATOMIC_RMW16_U_XCHG_I32:
       case WebAssembly::ATOMIC_RMW16_U_XCHG_I64:
+      case WebAssembly::ATOMIC_RMW16_U_CMPXCHG_I32:
+      case WebAssembly::ATOMIC_RMW16_U_CMPXCHG_I64:
       case WebAssembly::ATOMIC_RMW_ADD_I32:
       case WebAssembly::ATOMIC_RMW32_U_ADD_I64:
       case WebAssembly::ATOMIC_RMW_SUB_I32:
@@ -143,12 +147,15 @@
       case WebAssembly::ATOMIC_RMW32_U_XOR_I64:
       case WebAssembly::ATOMIC_RMW_XCHG_I32:
       case WebAssembly::ATOMIC_RMW32_U_XCHG_I64:
+      case WebAssembly::ATOMIC_RMW_CMPXCHG_I32:
+      case WebAssembly::ATOMIC_RMW32_U_CMPXCHG_I64:
       case WebAssembly::ATOMIC_RMW_ADD_I64:
       case WebAssembly::ATOMIC_RMW_SUB_I64:
       case WebAssembly::ATOMIC_RMW_AND_I64:
       case WebAssembly::ATOMIC_RMW_OR_I64:
       case WebAssembly::ATOMIC_RMW_XOR_I64:
       case WebAssembly::ATOMIC_RMW_XCHG_I64:
+      case WebAssembly::ATOMIC_RMW_CMPXCHG_I64:
         RewriteP2Align(MI, WebAssembly::LoadP2AlignOperandNo);
         break;
       case WebAssembly::STORE_I32: