void testImage(read_only image1d_t);
// CHECK: USR: c:@F@testImage#@BT@ro_image1d#

void testExt(intel_sub_group_avc_mce_payload_t) {}
// CHECK: USR: c:@F@testExt#@BT@intel_sub_group_avc_mce_payload_t#

// RUN: c-index-test -index-file %s --target=spir | FileCheck %s