Index: llvm/trunk/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
===================================================================
--- llvm/trunk/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
+++ llvm/trunk/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
@@ -125,7 +125,9 @@
   case WebAssembly::STORE8_I64:
   case WebAssembly::STORE8_I64_S:
   case WebAssembly::ATOMIC_STORE8_I32:
+  case WebAssembly::ATOMIC_STORE8_I32_S:
   case WebAssembly::ATOMIC_STORE8_I64:
+  case WebAssembly::ATOMIC_STORE8_I64_S:
     return 0;
   case WebAssembly::LOAD16_S_I32:
   case WebAssembly::LOAD16_S_I32_S:
@@ -144,7 +146,9 @@
   case WebAssembly::STORE16_I64:
   case WebAssembly::STORE16_I64_S:
   case WebAssembly::ATOMIC_STORE16_I32:
+  case WebAssembly::ATOMIC_STORE16_I32_S:
   case WebAssembly::ATOMIC_STORE16_I64:
+  case WebAssembly::ATOMIC_STORE16_I64_S:
     return 1;
   case WebAssembly::LOAD_I32:
   case WebAssembly::LOAD_I32_S:
@@ -165,7 +169,9 @@
   case WebAssembly::ATOMIC_LOAD32_U_I64:
   case WebAssembly::ATOMIC_LOAD32_U_I64_S:
   case WebAssembly::ATOMIC_STORE_I32:
+  case WebAssembly::ATOMIC_STORE_I32_S:
   case WebAssembly::ATOMIC_STORE32_I64:
+  case WebAssembly::ATOMIC_STORE32_I64_S:
     return 2;
   case WebAssembly::LOAD_I64:
   case WebAssembly::LOAD_I64_S:
@@ -178,6 +184,7 @@
   case WebAssembly::ATOMIC_LOAD_I64:
   case WebAssembly::ATOMIC_LOAD_I64_S:
   case WebAssembly::ATOMIC_STORE_I64:
+  case WebAssembly::ATOMIC_STORE_I64_S:
     return 3;
   default:
     llvm_unreachable("Only loads and stores have p2align values");