diff --git a/llvm/lib/Target/Hexagon/HexagonTargetObjectFile.cpp b/llvm/lib/Target/Hexagon/HexagonTargetObjectFile.cpp
--- a/llvm/lib/Target/Hexagon/HexagonTargetObjectFile.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonTargetObjectFile.cpp
@@ -330,6 +330,7 @@
   case Type::PPC_FP128TyID:
   case Type::LabelTyID:
   case Type::MetadataTyID:
+  case Type::X86_AMXTyID:
   case Type::X86_MMXTyID:
   case Type::TokenTyID:
     return 0;
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: