PPC64 Compiler bug !!

[Mike Stump]

On Friday, June 13, 2003, at 10:23 AM, linas@austin.ibm.com wrote:
> Based on the email replies, and on a few tests run over here,
> -msoft-float also seems to have the undocumented but valuable side
> effect of preventing the use of FPR's in DImode moves.

On processors that have specialized registers for the floating point  
unit, -msoft-float disappears those registers.  This should be  
documented and certainly can be relied upon.

If you want to fix the documentation to be clearer, that'd be good.

> My documentation seems to only mention -msoft-float for the DEC Alpha,
> and not as a PPC flag.

Odd.  My documentation seems to have it:

http://gcc.gnu.org/onlinedocs/gcc-3.3/gcc/RS-6000-and-PowerPC- 
Options.html#RS%2f6000%20and%20PowerPC%20Options