https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117260
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
/* DIM_SIZE and DIM_POS return the size of a particular compute
dimension and the executing thread's position within that
dimension. DIM_POS is pure (and not const) so that it isn't
thought to clobber memory and can be gcse'd within a single
parallel region, but not across FORK/JOIN boundaries. They take a
single INTEGER_CST argument. This might be overly conservative. */
DEF_INTERNAL_FN (GOACC_DIM_SIZE, ECF_CONST | ECF_NOTHROW | ECF_LEAF, NULL)
DEF_INTERNAL_FN (GOACC_DIM_POS, ECF_PURE | ECF_NOTHROW | ECF_LEAF, NULL)
The bug is in maybe_push_res_to_seq.
which handles builtins just fine but not internal functions:
```
if (internal_fn_p (fn))
{
/* Generate the given function if we can. */
internal_fn ifn = as_internal_fn (fn);
new_stmt = build_call_internal (ifn, res_op);
if (!new_stmt)
return NULL_TREE;
}
else
{
/* Find the function we want to call. */
tree decl = builtin_decl_implicit (as_builtin_fn (fn));
if (!decl)
return NULL;
/* We can't and should not emit calls to non-const functions. */
if (!(flags_from_decl_or_type (decl) & ECF_CONST))
return NULL;
```
Let me figure out how to get flags for an internal function.
