[Bug tree-optimization/69308] ifcombine joins together floating point expression with side effects

[mtliang at synopsys dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69308

--- Comment #6 from Mike Liang <mtliang at synopsys dot com> ---
Oh, I see.  You're saying this can be a problem for both QNaN and SNaN because
an ordered comparison instruction could be generated.  Does this mean floating
point expressions should never be combined?