git: gcc-4.4: Add workaround for probable AMD cpu bug

Matthew Dillon dillon at crater.dragonflybsd.org
Sun Dec 25 14:03:47 PST 2011


commit b14414d0dc0d39da553e7e5c16576218f2815f23
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Sun Dec 25 14:02:24 2011 -0800

    gcc-4.4: Add workaround for probable AMD cpu bug
    
    * Add a workaround to add a nop to the end of gcc-4.4's fill_sons_in_loop()
      function just prior to its return (to its multi-register pop and ret
      sequence).
    
      This works around what appears to be a aMD cpu bug in contemporary
      AMD cpus.

Summary of changes:
 contrib/gcc-4.4/gcc/cfgloop.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/b14414d0dc0d39da553e7e5c16576218f2815f23


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