[Bug middle-end/83653] [6 Regression] GCC fails to remove a can't-happen call on ia64

[matthew at wil dot cx]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83653

--- Comment #2 from Matthew Wilcox <matthew at wil dot cx> ---
7.2, 6.2, 5.5 and 4.9 fail.  4.6.3 succeeds.