Hello!
> Currently gcc will promote from QI/HI mode to SI mode various
> operators but not minus. It will however promote a neg followed by an
> add (add is in the current list of promotable operators and neg is
> promoted around config/i386/i386.md:16904). This omission can cause
> RAT stalls in
Currently gcc will promote from QI/HI mode to SI mode various
operators but not minus. It will however promote a neg followed by an
add (add is in the current list of promotable operators and neg is
promoted around config/i386/i386.md:16904). This omission can cause
RAT stalls in tight loops.
Succ
