On Thu, Aug 15, 2019 at 06:38:30PM +0200, Richard Biener wrote:

   Couldn't we spill the frame pointer? Basically we should be able to
   compute the first address into a reg, spill that, do the second
   (both could require the frame pointer), spill the frame pointer,
   reload the first computed address from the stack, execute the insn
   and then reload the frame pointer. 
     Maybe the frame pointer can also be implemented 'virually' in an index 
register that you keep updated so that sp + reg
     Is the FP. Or frame accesses can use a  Stack slot as FP and the indirect 
     Addressing... (is there an indirect lea?)

Yes.  lea x, [4,x] is a valid instruction.


Avoid eavesdropping.  Send strong encrypted email.
PGP Public key ID: 1024D/2DE827B3 
fingerprint = 8797 A26D 0854 2EAB 0285  A290 8A67 719C 2DE8 27B3
See http://sks-keyservers.net or any PGP keyserver for public key.

Reply via email to