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

[florian.miedniak at web dot de]

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

--- Comment #3 from Florian Miedniak <florian.miedniak at web dot de> ---
(In reply to Florian Miedniak from comment #2)
> Thanks for the hint! I had I try with GCC 4.7.3 again:
> 
> powerpc-elf-eabi-gcc.exe -mcpu=8548 -c test.c -o test.o -mdouble-float
> -mfloat-gprs=double -save-temps -v -mabi=spe
> 
> but unfortunately this didn't change anything. Also, activating all SPE
> related options I could find didn't work, either:
> 
> powerpc-elf-eabi-gcc.exe -mcpu=8548 -c test.c -o test.o -mdouble-float
> -mfloat-gprs=double -save-temps -v -mspe -mspe=yes -mabi=spe
> 
> Any idea?

My last comment wasn't totally correct: For GCC 4.7.3, using -mabi=spe isn't
sufficient, it needs -mspe in addition to that. For GCC 4.8.2 it seems that
-mabi=spe is sufficient.