You can disable optimizations that expand code size at the
second, third, and fourth optimization levels by using the +Osize
option, as follows:
cc
+O2 +Osize sourcefile.c |
or:
cc
+O3 +Osize sourcefile.c |
or:
cc
+O4 +Osize sourcefile.c |
Most optimizations improve execution speed and decrease executable
code size. A few optimizations significantly increase code size
to gain execution speed. The +Osize
option disables these code-expanding optimizations.
Use this option if you have limited main memory, swap space,
or disk space.
