[Bug rtl-optimization/118946] Missed optimization: GCC reserves stack space for optimized-out variable

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118946

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |missed-optimization

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
This happens when all uses of the stack var are elided during RTL optimization
where we cannot get rid of the allocation anymore.  There are some duplicate
bugreports tracking this already.