[Bug c/79217] Feature request: high half of an integer multiplication

[hpa at zytor dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79217

--- Comment #3 from H. Peter Anvin <hpa at zytor dot com> ---
Created attachment 40600
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40600&action=edit
Assembly output