On Mon, Apr 09, 2007 at 11:55:14PM +0100, Dave Korn wrote: > Thanks, I think you're right on there. The comments on PR31136 make it > fairly clear what's wrong; perhaps the best solution might be for > STRIP_SIGN_NOPS to mask out the high bits when it's discarding a size-reducing > NOP_EXPR? Or perhaps fold_unary should simplify it before passing to > STRIP_SIGN_NOPS for minimal peturbation?
I think STRIP_NOPS, and STRIP_SIGN_NOPS, should not consider the mode to be the same when the precision doesn't match. Indeed, perhaps the mode is largely irrelevant, and it should only be checking the precision.... r~
