Add target-version-invalid

Author: BeMg

clang/test/CodeGen/attr-target-version-riscv-invalid.c

@@ -0,0 +1,13 @@
+// RUN: not %clang_cc1 -triple riscv64 -target-feature +i -emit-llvm -o - %s 2>&1 | FileCheck %s --check-prefix=CHECK-UNSUPPORT-OS
+
+// CHECK-UNSUPPORT-OS: error: target_clones is currently only supported on Linux
+__attribute__((target_version("default"))) int foo(void) {
+  return 2;
+}
+
+__attribute__((target_version("arch=+c"))) int foo(void) {
+  return 2;
+}
+
+
+int bar() { return foo(); }