Hi Dmitry,
Well, I tried:
-O0 and got 0x3120 bytes
-O1 and got 0x2D40 bytes
-O2 and got 0x2CD0 bytes
-O3 and got
"tcpip.c:603: Internal compiler error in verify_local_live_at_start,
at flow.c:583"
"Please submit a full bug report,"
So, here is my bug report. Me thinks the last one give the minimum
output code - zero bytes!
Seriously, I don't know if the -O3 issue is a bug or something that is
just not implemented yet in mspgcc. However, I am surprised that IAR
achieves a size more like 0x2200 bytes. Its quite a big difference. I'll
have to look through the source code and see if there are any material
differences between the original code and the mspgcc version. This is
the first time I have found IAR produce a smaller binary.
On the other hand IAR always seems to beat mspgcc hands down on floats
:-) That said, IARs performance on floats is not very good, so I guess
there is substantial room for improvement in mspgcc.
Regards,
Steve
Dmitry wrote:
this probably some optimization issue.
Try different -O options.
The thing I know for sure is that run time performance now is much better.
~d
