On Fri, 11 Aug 2023, Richard Biener wrote:
> > I think it converts SNan to QNan (when the partial vector has just one
> > element which is SNan), so is a test for -fsignaling-nans missing?
>
> Hm, I guess that's a corner case that could happen when there's no
> runtime profitability check on mo
On Fri, 11 Aug 2023, Alexander Monakov wrote:
>
> On Fri, 11 Aug 2023, Richard Biener wrote:
>
> > When we vectorize fold-left reductions with partial vectors but
> > no target operation available we use a vector conditional to force
> > excess elements to zero. But that doesn't correctly prese
Richard Biener writes:
> When we vectorize fold-left reductions with partial vectors but
> no target operation available we use a vector conditional to force
> excess elements to zero. But that doesn't correctly preserve
> the sign of zero. The following patch disables partial vector
> support i
On Fri, 11 Aug 2023, Richard Biener wrote:
> When we vectorize fold-left reductions with partial vectors but
> no target operation available we use a vector conditional to force
> excess elements to zero. But that doesn't correctly preserve
> the sign of zero. The following patch disables part
When we vectorize fold-left reductions with partial vectors but
no target operation available we use a vector conditional to force
excess elements to zero. But that doesn't correctly preserve
the sign of zero. The following patch disables partial vector
support in that case.
Bootstrap and regtes
