[Bug c/60413] extra precision not properly removed on assignment of return value

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60413

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Ryan Lortie from comment #2)
> Why is this violation of standards treated in a special way?

Because it slows down things way too much.  Much better is just to use -msse2
-mfpmath=sse if you really need to use 32-bit programs and have at least SSE2
capable CPU, i387 floating point stack has tons of issues.