[PATCH] PowerPC extendsfdf2 MEM alternative

[Geoff Keating]

On 11/03/2005, at 8:25 AM, David Edelsohn wrote:

> 	PowerPC always stores floating point values in double precision
> format.  That means loading a single precision value implicitly 
> extends it
> for use in a double precision instruction.  I think that the PowerPC
> extendsfdf2 pattern should advertise that it can extend from memory.
>
> 	Geoff, does this seem reasonable to you?  Any hidden gotchas?

No, that makes perfect sense.

> Bootstrapped and regression tested on powerpc-ibm-aix5.2.0.0.
>
> David
>
> 	* config/rs6000/rs6000.md (extendsfdf2_fpr): Add MEM alternative.
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