[Bug middle-end/122227] [13/14/15/16 Regression[ Storing to volatile array creates spurious loads.

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122227

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So basically it is the same as:
 *(volatile unsigned int*)data &= 0;

With a known alignment of 1.

Let me look into what changed between 4.5 and 4.6 because that might point to
why GCC is correct here.