Help with expanding compare

[Revital1 Eres]

Hello,

I am using current mainline to compile a testcase which contains a loop.
The target I'm working on supports cmpsi pattern.

While expanding the loop condition I get that do_compare_rtx_and_jump ()
and
 do_jump_by_parts_greater_rtx () call each other repeatedly.

The test I'm compiling passes OK when using GCC 4.4.  Looking into the
difference between the two versions that might caused this problem;
I see that in GCC4.4 can_compare_p () asks if the target supports
cmp_optab. while GCC4.6 does not ask for this opcode and thus IIUC causes
the later call to do_jump_by_parts_greater_rtx ().

I appreciate any help with this problem.

Thanks,
Revital