Started with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188526 but it was merely latent before that, so it isn't LRA bug, because it fails with reload equally. I think the problem is in combine, where we have: ax = call ... flags = r59 != 0 r60 = flags >= 0 ? ax : r59 r65 = buf r68 = 768 rep stosd [r65 .. r65 + r68 - 4] = 0 r59 = r60
and the combiner combines the r60 = flags >= 0 ? ax : r59 instruction with r59 = r60 into r59 = flags >= 0 ? ax : r59 instruction in the last spot, thus extending the lifetime of the ax and flags hard registers across various other instructions. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1135633 Title: [linaro regression] alsa-tools FTBFS with error "unable to find a register to spill in class ‘AREG’" To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/1135633/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
