On Fri, May 3, 2013 at 1:26 PM, Jeff Law <l...@redhat.com> wrote: > On 05/03/2013 11:15 AM, Teresa Johnson wrote: >> >> On Fri, May 3, 2013 at 9:37 AM, David Edelsohn <dje....@gmail.com> wrote: >>> >>> Thanks for the patch. >>> >>> Bootstrap works on x86 and Anton's testcase works on x86. >>> >>> Is there any testcase for x86 that would demonstrate the failure or >>> that could check the probabilities in a dump file and see the >>> inconsistency? >> >> >> Patch is committed. But I just figured out why it isn't showing up on >> x86 - it is because -fschedule-insns is not enabled by default. I can >> reproduce it with x86 using the same test case. Will go ahead and >> submit a patch to add this to the testsuite. > > Just an FYI, we don't use -fschedule-insns (first pass) on x86/x86_64 due to > register pressure issues. However, I think for the testsuite it'd be OK to > have a test which uses -fschedule-insns to expose the need for clamping on > the probabilities.
Then Anton's testcase would make a good addition, with explicit -fschedule-insns. Thanks, David
