[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 #1 from Yukhin Kirill <kirill.yukhin at intel dot com> 2012-05-18 
13:58:22 UTC ---
(In reply to comment #0)
> It also seems to fail gcc.c-torture/execute/builtin-bitops-1.c
It fails on BMI-capable CPU