[Bug target/69909] [6 Regression] wrong code with -Os and vectors @ x86_64

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69909

--- Comment #5 from Uroš Bizjak <ubizjak at gmail dot com> ---
And -fno-strict-aliasing "fixes" the problem