[Sorry for not replying earlier, somehow I missed this mail]

On the other hand, *using* -fno-omit-frame-pointer causes gcc to
produce buggy code on PowerPC targets.

It doesn't cause the problem, it only exposes it.  And, of course,
only on certain GCC versions.

Segher, do you know if all GCC versions that we support for
building Linux are behaving the way that GCC manual describe?

I believe so, yes.


Segher

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