diff --git a/llvm/tools/llvm-c-test/echo.cpp b/llvm/tools/llvm-c-test/echo.cpp
--- a/llvm/tools/llvm-c-test/echo.cpp
+++ b/llvm/tools/llvm-c-test/echo.cpp
@@ -149,6 +149,8 @@
                                       LLVMGetVectorSize(Src));
       case LLVMMetadataTypeKind:
         return LLVMMetadataTypeInContext(Ctx);
+      case LLVMX86_AMXTypeKind:
+        return LLVMX86AMXTypeInContext(Ctx);
       case LLVMX86_MMXTypeKind:
         return LLVMX86MMXTypeInContext(Ctx);
       case LLVMTokenTypeKind: