Suboptimal code generation by GCC
Gunnar Von Boehn
gunnar at genesi-usa.com
Wed May 14 08:52:49 UTC 2008
To whom it may concern,
We have evaluated the "gcc version 4.2.1 (Sourcery G++ Lite 4.2-47)"
Compiling various test cases it showed that the the ASM code created
by GCC 4.2.1 for 68k/Coldfire platform was not optimal.
Comparing ASM output created by GCC 2.9 with GCC 4.2, the generated
code got partially much worse with GCC 4.
I have filed some bug report to the GCC team to help them rectify this issues.
The found problems were described in these tickets:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36133
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36134
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36135
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36136
I think, I would be nice if you could have a look and help them to fix
those issues.
Please tell me if you need anything more from me to help you.
Kind regards
Gunnar von Boehn
More information about the coldfire-gnu-discuss
mailing list