On Fri, Apr 27, 2012 at 11:49 AM, Paolo Bonzini <bonz...@gnu.org> wrote: > The testcase is miscompiled to this: > > ... > movl (%rsi), %ecx > cmpl %ecx, (%rdi) > sbbl %edx, %edx > cmovbe %edx, %eax > ret > > but sbbl only preserves the carry flag, not the zero flag. I suppose > one could use different patterns with different CC modes, but this is > the safest fix. > > Bootstrapped/regtested x86_64-pc-linux-gnu, ok for mainline?
OK. > I also reproduced this at least on 4.7; help would be welcome on > committing it to the branches. Thanks in advance! I can take care of this, but I won' be able to do this until Monday. Thanks, Uros.
