[Bug target/64074] PowerPC E500: Passing of double parameters not EABI compliant

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64074

--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
Yes, you need -mabi=spe for this to work.  Any form of e500 operation 
without -mabi=spe (except maybe e500v1 single-precision-only non-vector 
floating point) will not follow any well-defined ABI.

r187581 (2012-05-16, so 4.8 and later) made -mcpu= for e500 processors 
enable -mabi=spe by default.