[Bug target/69648] [5/6 Regression] wrong code with -O -mtune=winchip-c6 -fPIC -fexpensive-optimizations -msse4 @ i686

[bernds at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69648

--- Comment #11 from Bernd Schmidt <bernds at gcc dot gnu.org> ---
FWIW that passes bootstrap & regtest on x86_64-linux.