[Issue 13726] Build Phobos and Druntime with stack frames enabled (-gs)

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13726

--- Comment #12 from Martin Nowak <code at dawg.eu> ---
(In reply to Vladimir Panteleev from comment #6)
> Martin, do you have a benchmark for which the performance difference is
> non-negligible?

It would affect any leaf function that is not inlined.
For example this would kill what Manu had in mind for std.simd, a module where
each function consists of a few SIMD instrustions.

> I've been building D from source code on my server for a while now, just to
> enable stack frames. They are invaluable for debugging, I use them for
> production all the time. I am confident that at the moment, D will benefit
> more from stack frames in Phobos/Druntime than 0.1% in performance.

It's 0.1% performance loss for you but maybe 1 or 2% for someone else.
There is so much we can do to improve stack traces, but enforcing stack frames
is a performance trade-off.

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