[Bug target/53399] "*ffs" pattern generates wrong code with BMI enabled (for corner cases)

[kirill.yukhin at intel dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53399

--- Comment #4 from Yukhin Kirill <kirill.yukhin at intel dot com> 2012-05-20 
15:53:30 UTC ---
Created attachment 27449
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27449
testcase