LDC 0.15.0 alpha1 released! Please help test!
Kiith-Sa via digitalmars-d-ldc
digitalmars-d-ldc at puremagic.com
Sat Oct 25 05:02:34 PDT 2014
On Friday, 24 October 2014 at 21:21:40 UTC, David Nadlinger wrote:
> On Friday, 24 October 2014 at 16:28:13 UTC, Kai Nacke wrote:
>> I do not use DUB so I don't know which args were passed to
>> LDC. I would assume that release only passes the -release
>> switch.
>
> That's not the issue, it's something along the lines of -O3
> -release -disable-boundscheck by default.
>
>> Could you try it again with a higher optimization level, e.g.
>> -O2 or -O3? There is also a problem with the inliner (David
>> gave some hints here:
>> http://forum.dlang.org/post/ursgarblzengucvxnmfz@forum.dlang.org).
>> Using -singleobj with multiple objects might help, too.
>
> The issues is most probably not related to optimization at all.
> I obviously can't say any definitive without more context/code,
> but it looks like we might emit a manifest constant once and
> unconditionally instead of on every use (there is/was even an
> ancient fixme note about this in the code at some point).
>
> CTFE itself seems not to be directly related to the issue. It
> only happens to produce the initializer we erroneously emit
> afterwards. And regarding the optimizer, the only thing we
> could there is to catch that the value is never used/escaped
> and elide it, but clearly it just shouldn't be there in the
> first place.
>
> David
I've reduced the code needed to reproduce the issue:
https://github.com/ldc-developers/ldc/issues/762
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