Re: [PATCH] tree-optimization/101756 - avoid vectorizing boolean MAX reductions

2021-08-05 Thread Richard Biener
On Thu, 5 Aug 2021, Christophe Lyon wrote: > On Wed, Aug 4, 2021 at 12:33 PM Richard Biener wrote: > > > The following avoids vectorizing MIN/MAX reductions on bools which, > > when ending up as vector(2) would need to be > > adjusted because of the sign change. The fix instead avoids any > >

Re: [PATCH] tree-optimization/101756 - avoid vectorizing boolean MAX reductions

2021-08-05 Thread Christophe Lyon via Gcc-patches
On Wed, Aug 4, 2021 at 12:33 PM Richard Biener wrote: > The following avoids vectorizing MIN/MAX reductions on bools which, > when ending up as vector(2) would need to be > adjusted because of the sign change. The fix instead avoids any > reduction vectorization where the result isn't compatibl