[cfe-commits] Patch for evaluating FP constant expressions

[Neil Booth]

Christopher Lamb wrote:-

> I needed this to support negation of FP literals, which is pretty  
> unambiguous. It looks like GCC evaluates more complex constant  
> expressions too, so I put in support for some of that (though  
> rounding mode is an issue). All of this is modeled on the work for  
> integer expressions and uses APFloat.

Why compare results to opOK?

Neil.