Does -Os mean "optimize even if it makes things a bit bigger" or does it
mean "optimize only to make it smaller"? If the latter then the current
behavior would appear to be the correct one.
paul
> -----Original Message-----
> From: Ian Bolton [mailto:bol...@icerasemi.com]
> Sent: Tuesday, March 23, 2010 2:06 PM
> To: gcc@gcc.gnu.org
> Subject: BB reorder forced off for -Os
>
> Is there any reason why BB reorder has been disabled
> in bb-reorder.c for -Os, such that you can't even
> turn it on with -freorder-blocks?
>
> From what I've heard on this list in recent days,
> BB reorder gives good performance wins such that
> most people would still want it on even if it did
> increase code size a little.
>
> Cheers,
> Ian
