Hello, Just did so... :-) and it indeed solves this.
Thanks, Revital From: Paolo Bonzini <bonz...@gnu.org> To: Revital1 Eres/Haifa/i...@ibmil Cc: gcc@gcc.gnu.org Date: 25/05/2010 03:57 PM Subject: Re: Help with expanding compare Sent by: Paolo Bonzini <paolo.bonz...@gmail.com> On 05/25/2010 12:13 PM, Revital1 Eres wrote: > > 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 (). Have you converted cmpsi to cbranchsi4? Paolo
