[gomp4] remove kernel-specific launch

[Tom de Vries]

On 19/07/15 23:08, Nathan Sidwell wrote:
> On 07/19/15 16:30, Thomas Schwinge wrote:
>
>>      gcc/tree-parloops.c:    /* Remove GOACC_kernels.  */
>>      libgomp/libgomp.map:    GOACC_kernels;
>>      libgomp/libgomp_g.h:extern void GOACC_kernels (int, void (*)
>> (void *), size_t,
>
> I fixed all byt the parloops comment.  That comment didn't really make
> sense to me -- it seems to be doing something with the pragma not the
> call.   Perhaps Tom could correct/clarify it?
>

Committed as attached.

>> Does it make sense then to rename GOACC_kernels_internal to
>> GOACC_kernels?
>
> I  agree with Tom.  But perhaps it should be an internal fn? IIUC those
> are for pseudo-funcs that should be converted to something else before
> the end of compilation.

Turning it into an internal fn will make it harder to convert a 
GOACC_kernels_internal call into a GOACC_parallel call, which we're 
doing here in omp-low.c:
...
           tree fndecl = builtin_decl_explicit (BUILT_IN_GOACC_PARALLEL);
           gimple_call_set_fndecl (call, fndecl);
           gimple_call_set_fntype (call, TREE_TYPE (fndecl));
           gimple_call_reset_alias_info (call);
  ...

Thanks,
- Tom

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