Core Development Tools/Discussion/General/How to enable generation of PowerPC SPE instructions/List of Posts
 
Forum Topic - How to enable generation of PowerPC SPE instructions:
   
Update
hans xner
06/18/2008 2:50 AM
post9370
How to enable generation of PowerPC SPE instructions   
How can I instruct the GCC compiler to use SPE instructions for floating-point operations?

We have tried to use -mspe and -mspe=yes but still get the standard PowerPC FPU instructions.

We have also tried to use –mabi=spe but got the following error:
cc1: error: not configured for ABI: 'spe'


We use GCC v4.2.1
Ryan Mansfield(deleted)
06/18/2008 8:34 AM
post9374
Re: How to enable generation of PowerPC SPE instructions   
> How can I instruct the GCC compiler to use SPE instructions for floating-point
>  operations?
> 
> We have tried to use -mspe and -mspe=yes but still get the standard PowerPC 
> FPU instructions.
> 
> We have also tried to use –mabi=spe but got the following error:
> cc1: error: not configured for ABI: 'spe'
> 
> 
> We use GCC v4.2.1

The  gcc 4.2.1 toolchain available on the foundry is not configured for the e500 ABI. The e500 ABI is incompatible with 
the default ABI and would require rebuilding all binaries (executables and libraries) to use the SPE instructions.

Regards,

Ryan Mansfield

Return