[Bug target/65614] [5 Regression] PowerPC VSX systems should use XSCPSGNDP to copy scalar fp data to/from Altivec registers

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65614

--- Comment #4 from David Edelsohn <dje at gcc dot gnu.org> ---
Comment on attachment 35227
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35227
Proposed patch to fix the problem

The FLOAT_EXTEND cost should be based on the processor tuning, not the ISA.