Richard Biener <richard.guent...@gmail.com> writes: > As an additional point for many math functions we have to support errno > which means, like, BUILT_IN_SQRT can be rewritten to SQRT_EXPR > only if -fno-math-errno is in effect. But then code has to handle > both variants for things like constant folding and expression combining. > That's very unfortunate and something we want to avoid (one reason > the POW_EXPR thing didn't fly when I tried). STRICT_FMIN/MAX_EXPR > is an example where this doesn't apply, of course (but I detest the name, > just use FMIN/FMAX_EXPR?). Still you'd need to handle both, > FMIN_EXPR and BUILT_IN_FMIN, in code doing analysis/transform.
Yeah, but match.pd makes that easy, right? ;-)
