Index: lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
===================================================================
--- lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
+++ lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
@@ -433,10 +433,6 @@
       if (pop(BaseName, Try))
         return true;
       push(Try);
-    } else if (BaseName == "catch_all") {
-      if (pop(BaseName, Try))
-        return true;
-      push(Try);
     } else if (BaseName == "end_if") {
       if (pop(BaseName, If, Else))
         return true;