[Bug tree-optimization/87303] DFmode FP constants are not correctly truncated when promoted to XFmode

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87303

--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
I don't see a bug here.  Excess precision semantics mean that the 
comparison is effectively with 0.1e-100L (whereas the array initializer is 
(double) 0.1e-100L).  If you use "!= (double) 0.1e-100" in the test - add 
a cast of the constant to double - then it should pass with 
-fexcess-precision=standard.