[Bug tree-optimization/123298] [13/14/15/16 Regression] X86-64: miscompile at -O3

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123298

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 63156
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63156&action=edit
Reduced slightly

Removes the global variables, mark the function as noipa and change BS_VAR_1 to
int rather than a vector(1) of an int.