On 11/11/2012 02:01 PM, Andrew Haley wrote:
On 11/11/2012 07:59 PM, Xin Tong wrote:
No. GCC does all optimizations *except* those known to increase
program size. This usually works pretty well, but isn't perfect.
so as to how the instructions are selected. compiling for code size
does not have an effect ?
Please don't top-post on this list.
Any target could, in principle, select instructions based on size
and -OS, but I don't know any that do.
Many ports look at at -Os and change their instruction selections,
alignment requests, etc.
grep for "optimize_size" in the machine descriptions...
jeff
