[Bug rtl-optimization/53352] Incorrect CSE optimization on RTL expressions with a paradoxical subreg

[meadori at codesourcery dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53352

--- Comment #3 from Meador Inge <meadori at codesourcery dot com> 2012-05-17 16:42:04 UTC ---
It can easily be seen my inspection of the assembly code.  As I mentioned
before, 0xFF00 gets passed to 'foo'.  Anyway, I posted an executable case along
with my patch here: http://gcc.gnu.org/ml/gcc-patches/2012-05/msg01042.html.