On Mon, May 29, 2017 at 01:35:22PM +0200, Richard Biener wrote: > >> What's the documented behavior for vec_abs with respect to an > >argument > >> of value INT_MIN? > > > >The documentation says: > > > > "For integer vectors, the arithmetic is modular." > > This means that folding as ABS_EXPR is not safe for !TYPE_OVERFLOW_WRAPS > Integral vector types.
Is it still fine if TYPE_OVERFLOW_UNDEFINED? So essentially always except with -ftrapv? Segher
