[Bug rtl-optimization/54342] [4.8 Regression] Wrong mode of call argument

[vbyakovl23 at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54342

--- Comment #3 from Vladimir Yakovlev <vbyakovl23 at gmail dot com> 2012-08-21 
11:18:39 UTC ---
I'm working on vzeroupper insertion and my implementation inserts vzeroupper
before the call because VALID_AVX256_REG_MODE returns false.