On Oct 5, 2011, at 6:18 AM, Diego Novillo wrote:
> I think we need to find a solution for this situation.
The solution Apple found and implemented is a __nodebug__ attribute, as can be
seen in Apple's gcc.
We use it like so:
#define __always_inline__ __always_inline__, __nodebug__
#undef __always_inline__
in headers like mmintrn.h:
__STATIC_INLINE void __attribute__((__always_inline__))
/* APPLE LOCAL end radar 5618945 */
_mm_empty (void)
{
__builtin_ia32_emms ();
}
to disappear the debug information for all the routines, so that the context is
the context in which the routine is called (because the routine is always
inlined). It is implemented and works great. Easy to use and understand.
Since we use the #define, #undef around the functions, it is mostly equivalent
to #pragma, though, it does attach a little closer to the function. You can
strip #.* from the .i files, and not have it removed (which is nice).
