[PATCH, V2] Optimize signed DImode -> TImode on power10, PR target/104698

Michael Meissner meissner@linux.ibm.com
Fri Mar 4 23:11:14 GMT 2022

On Wed, Mar 02, 2022 at 06:47:39PM -0600, Segher Boessenkool wrote:
> Please use src instead of dest_lo.  This always works, because you did
> the low-part move first.

That doesn't work in the case where src is a memory operation.  Dest_lo is
guarantee to be a register, but src isn't.

Michael Meissner, IBM
PO Box 98, Ayer, Massachusetts, USA, 01432
email: meissner@linux.ibm.com

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