Instead of converting XOR or PLUS of two values, ANDed with two constants that
have no bits in common, to IOR expression, convert IOR or XOR of said two
ANDed values to PLUS expression.
If we consider the following testcase:
--cut here--
unsigned int foo (unsigned int a, unsigned int b)
{
unsig
On Mon, Jan 8, 2024 at 6:44 AM Uros Bizjak wrote:
>
> Instead of converting XOR or PLUS of two values, ANDed with two constants that
> have no bits in common, to IOR expression, convert IOR or XOR of said two
> ANDed values to PLUS expression.
I think this only helps targets which have leal like
On 1/8/24 09:57, Andrew Pinski wrote:
On Mon, Jan 8, 2024 at 6:44 AM Uros Bizjak wrote:
Instead of converting XOR or PLUS of two values, ANDed with two constants that
have no bits in common, to IOR expression, convert IOR or XOR of said two
ANDed values to PLUS expression.
I think this on
On Mon, Jan 8, 2024 at 5:57 PM Andrew Pinski wrote:
>
> On Mon, Jan 8, 2024 at 6:44 AM Uros Bizjak wrote:
> >
> > Instead of converting XOR or PLUS of two values, ANDed with two constants
> > that
> > have no bits in common, to IOR expression, convert IOR or XOR of said two
> > ANDed values to P
On Mon, 8 Jan 2024, Jeff Law wrote:
>
>
> On 1/8/24 09:57, Andrew Pinski wrote:
> > On Mon, Jan 8, 2024 at 6:44?AM Uros Bizjak wrote:
> >>
> >> Instead of converting XOR or PLUS of two values, ANDed with two constants
> >> that
> >> have no bits in common, to IOR expression, convert IOR or XOR
On Mon, 8 Jan 2024, Uros Bizjak wrote:
> On Mon, Jan 8, 2024 at 5:57?PM Andrew Pinski wrote:
> >
> > On Mon, Jan 8, 2024 at 6:44?AM Uros Bizjak wrote:
> > >
> > > Instead of converting XOR or PLUS of two values, ANDed with two constants
> > > that
> > > have no bits in common, to IOR expression
On Tue, Jan 9, 2024 at 9:58 AM Richard Biener wrote:
>
> On Mon, 8 Jan 2024, Uros Bizjak wrote:
>
> > On Mon, Jan 8, 2024 at 5:57?PM Andrew Pinski wrote:
> > >
> > > On Mon, Jan 8, 2024 at 6:44?AM Uros Bizjak wrote:
> > > >
> > > > Instead of converting XOR or PLUS of two values, ANDed with two
On Tue, 9 Jan 2024, Uros Bizjak wrote:
> On Tue, Jan 9, 2024 at 9:58?AM Richard Biener wrote:
> >
> > On Mon, 8 Jan 2024, Uros Bizjak wrote:
> >
> > > On Mon, Jan 8, 2024 at 5:57?PM Andrew Pinski wrote:
> > > >
> > > > On Mon, Jan 8, 2024 at 6:44?AM Uros Bizjak wrote:
> > > > >
> > > > > Instea
On Tue, Jan 09, 2024 at 10:39:50AM +0100, Richard Biener wrote:
> > x86 can't combine IOR/XOR in any meaningful way, but can combine the
> > sequence of PLUS (together with MULT) RTXes to LEA.
>
> Btw, this looks like a three-insn combination even with IOR so a
> pattern for this case would work a
On Tue, Jan 9, 2024 at 10:44 AM Richard Biener wrote:
>
> On Tue, 9 Jan 2024, Uros Bizjak wrote:
>
> > On Tue, Jan 9, 2024 at 9:58?AM Richard Biener wrote:
> > >
> > > On Mon, 8 Jan 2024, Uros Bizjak wrote:
> > >
> > > > On Mon, Jan 8, 2024 at 5:57?PM Andrew Pinski wrote:
> > > > >
> > > > > On
On Tue, 9 Jan 2024, Uros Bizjak wrote:
> On Tue, Jan 9, 2024 at 10:44?AM Richard Biener wrote:
> >
> > On Tue, 9 Jan 2024, Uros Bizjak wrote:
> >
> > > On Tue, Jan 9, 2024 at 9:58?AM Richard Biener wrote:
> > > >
> > > > On Mon, 8 Jan 2024, Uros Bizjak wrote:
> > > >
> > > > > On Mon, Jan 8, 202
On Tue, Jan 9, 2024 at 11:06 AM Richard Biener wrote:
>
> On Tue, 9 Jan 2024, Uros Bizjak wrote:
>
> > On Tue, Jan 9, 2024 at 10:44?AM Richard Biener wrote:
> > >
> > > On Tue, 9 Jan 2024, Uros Bizjak wrote:
> > >
> > > > On Tue, Jan 9, 2024 at 9:58?AM Richard Biener wrote:
> > > > >
> > > > > O
On Tue, Jan 9, 2024 at 11:19 AM Uros Bizjak wrote:
>
> On Tue, Jan 9, 2024 at 11:06 AM Richard Biener wrote:
> >
> > On Tue, 9 Jan 2024, Uros Bizjak wrote:
> >
> > > On Tue, Jan 9, 2024 at 10:44?AM Richard Biener wrote:
> > > >
> > > > On Tue, 9 Jan 2024, Uros Bizjak wrote:
> > > >
> > > > > On
13 matches
Mail list logo