Hi,
as explained in the audit trail, the return part has a major performance
impact in Ada where variable-sized types are first-class citizens, but it
turns out that it is not exercized in the testsuite yet.
Tested on x86-64/Linux, OK for mainline and 11 branch?
2021-06-02 Eric Botcazou
On Wed, Jun 2, 2021 at 2:05 PM Eric Botcazou wrote:
>
> Hi,
>
> as explained in the audit trail, the return part has a major performance
> impact in Ada where variable-sized types are first-class citizens, but it
> turns out that it is not exercized in the testsuite yet.
>
> Tested on x86-64/Linux
> Not sure whether we know VLA results are always returned by
> reference? In particular does this mean we'll never see a
> WITH_SIZE_EXPR on the LHS of a call? You might have noticed
> I've done WITH_SIZE_EXPR "enhancements" recently on trunk.
VLAs are always aggregate_value_p so the caller pas
