[Bug target/97902] x86 frame pointer missing with -fno-omit-frame-pointer (-mno-omit-leaf-frame-pointer)

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97902

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Assignee|unassigned at gcc dot gnu.org      |marxin at gcc dot gnu.org
             Status|WAITING                     |ASSIGNED

--- Comment #9 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #8)
> (In reply to Martin Liška from comment #7)
> > Can you please H.J. take a look?
> > Maybe we can add a param that will drive the beviour?
> 
> I consider this optimization similar inlining or tail call.

How is that related? I don't see the connection in behavior.

> Should
> -fno-omit-frame-pointer disable them?

I would prefer to revert the patch 8e941ae950ddce1745b4d6819a7131908dd7de24.
The reporter requested to preserve the frame pointer (with
-fno-omit-frame-pointer) for backtracing capability and we optimized it out.

What do you think H.J. ?