[Bug tree-optimization/119614] [15 regression] protobuf-29.4 fails to build with -O2 (error: cannot tail-call: call and return value are different)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119614

--- Comment #18 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #17)
> Tried compiling the pr119614.C test from my last patch with -O2 -r -flto=2
> -flto-partition=max but for some reason that still doesn't force each
> function to a separate partition.

Try g++ -flto -flto-partition=max -O2 -shared on that.