Temporary header file '/tmp/10RvLzZnW6/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _GXX_NULLPTR_T
#define CLUTTER_ENABLE_COMPOSITOR_API 1
#define _REGEX_NELTS(n)
#define _Atomic
#define PACKED
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/llvm-14/llvm/GenXIntrinsics/GenXIntrOpts.h"
  #include "/usr/include/llvm-14/llvm/GenXIntrinsics/GenXIntrinsicInst.h"
  #include "/usr/include/llvm-14/llvm/GenXIntrinsics/GenXIntrinsics.h"
  #include "/usr/include/llvm-14/llvm/GenXIntrinsics/GenXMetadata.h"
  #include "/usr/include/llvm-14/llvm/GenXIntrinsics/GenXSPIRVReaderAdaptor.h"
  #include "/usr/include/llvm-14/llvm/GenXIntrinsics/GenXSPIRVWriterAdaptor.h"
  #include "/usr/include/llvm-14/llvm/GenXIntrinsics/GenXSimdCFLowering.h"
  #include "/usr/include/llvm-14/llvm/GenXIntrinsics/GenXVersion.h"

  // add namespaces
  namespace llvm{typedef int tmp_add_type_1;}
  llvm::tmp_add_type_1 tmp_add_func_1(){return 0;};

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/10RvLzZnW6/dump1.h"  -I/usr/include/llvm-14

In file included from /usr/include/llvm-14/llvm/GenXIntrinsics/GenXIntrinsicInst.h:28,
                 from /tmp/10RvLzZnW6/dump1.h:13:
/usr/include/llvm-14/llvm/GenXIntrinsics/GenXIntrinsics.h:20:10: fatal error: llvm/ADT/None.h: No such file or directory
   20 | #include "llvm/ADT/None.h"
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.