[Bug rtl-optimization/118947] Missed optimization: GCC forgets stack buffer contents across function call

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118947

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

           What    |Removed                     |Added
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           Keywords|                            |alias, missed-optimization

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
RTL alias analysis isn't powerful enough for this.  This (and the other bug)
shows we are not inlining the memcpy on GIMPLE (ISTR there's a bug that SRA
should handle these cases).