On 08/17/2009 02:32 PM, ami_stuff wrote:
Hi,
Works fine for me. gcc.dg/tree-ssa/loop-6.c is unswitched with -O3
but not with -O3 -fno-unswitch-loops.
This one works for me too.
Could you try to compile "deflate.c" from libz?
Here are my results:
-m68060 -O3 -fno-unswitch-loops
- 12,9kb
-m68060 -O3
- 12,9kb
-m68060 -O2 -finline-functions -fgcse-after-reload -ftree-vectorize
-fpredictive-commoning - 12,4kb
And why do you think that loop unswitching has anything to do with the
size growth?
BTW, -O3 is not guaranteed to give better performance than -O2.
Paolo
