https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85957
--- Comment #25 from Rich Felker <bugdal at aerifal dot cx> --- I think standards-conforming excess precision should be forced on, and added to C++; there are just too many dangerous ways things can break as it is now. If you really think this is a platform of dwindling relevance (though I question that; due to the way patent lifetimes work, the first viable open-hardware x86 clones will almost surely lack sse, no?) then we should not have dangerous hacks for the sake of marginal performance gains, with too few people spending the time to deal with their fallout. I'd be fine with an option to change the behavior of constants, and have it set by default for -std=gnu* as long as the unsafe behavior is removed from -std=gnu*.
