[Bug target/81084] [8 Regression] powerpcspe port full of confusing configury / command-line options not related to SPE

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81084

--- Comment #11 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
Even rs6000 changes related to IEEE long double support are potentially 
relevant to powerpcspe (not anything related to binary128 in VSX, 
obviously, but more generic IEEE long double changes).  I suspect the 
support for IEEE long double for 32-bit is pretty bit-rotten (old ABI 
passing by reference, I think), but logically it's just as meaningful for 
this port as for rs6000 (and powerpcspe should stay compatible with the 
soft-float ABI in the rs6000 port).

Shared between the ports (so you don't need to do any cleanup there at 
present for this issue): libgcc code, documentation, 
testsuite/gcc.target/powerpc.

As powerpcspe is neither a primary nor secondary target, you're free to 
apply non-regression-fix changes as you wish, but it's up to you to have 
the port in a stable state at the time of branching as any instability of 
such a port won't be relevant to choosing when to branch for a release.