On Thu, 2014-10-09 at 11:27 -0700, Andrew Pinski wrote: > > Is there a reason why GCC couldn't (under -ffast-math) call the single > > precision routines for the first case? > > There is no reason why it could not. The reason why it does not > currently is because there is no pass which does the demotion and the > only case of demotion that happens is with a simple > (float)function((double)float_val); > > Thanks, > Andrew
Do you know which pass does the simple '(float)function((double)float_val)' demotion? Maybe that would be a good place to extend things. Steve Ellcey
