On Fri, May 05, 2017 at 01:59:17PM +0200, Richard Biener wrote:
> On Thu, 4 May 2017, Jakub Jelinek wrote:
>
> > Hi!
> >
> > This patch improves value range computation of BIT_{AND,IOR}_EXPR
> > with one singleton range and one range_int_cst_p, where the singleton
> > range has n clear least
On Thu, 4 May 2017, Jakub Jelinek wrote:
> Hi!
>
> This patch improves value range computation of BIT_{AND,IOR}_EXPR
> with one singleton range and one range_int_cst_p, where the singleton
> range has n clear least significant bits, then m set bits and either
> that is all it has (i.e. negation
Hi!
This patch improves value range computation of BIT_{AND,IOR}_EXPR
with one singleton range and one range_int_cst_p, where the singleton
range has n clear least significant bits, then m set bits and either
that is all it has (i.e. negation of a power of 2), or the bits above
those two sets of