{ $class-description "A stack location is available at a location if all paths from the entry block to the location load the location into a register." } ;
HELP:anticip
{ $class-description "A stack location is anticipated at a location if every path from the location to an exit block will read the stack location before writing it." } ;
HELP:dead
{ $class-description "A stack location is dead at a location if no paths from the location to the exit block read the location before writing it." } ;
HELP:live
{ $class-description "A stack location is live at a location if some path from the location to an exit block will read the stack location before writing it." } ;
HELP:pending
{ $class-description "A stack location is pending at a location if all paths from the entry block to the location write the location." } ;
"The info they gather is used by " { $link finalize-stack-shuffling } " for optimal insertion of " { $link ##peek } " and " { $link ##replace } " instructions.";
