On Wed, Jan 24, 2024 at 4:50 PM Georg-Johann Lay wrote:
>
>
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> Am 22.01.24 um 08:45 schrieb Richard Biener:
> > On Fri, Jan 19, 2024 at 5:06 PM Georg-Johann Lay wrote:
> >>
> >>
> >>
> >> Am 18.01.24 um 20:54 schrieb Roger Sayle:
> >>>
> >>> This patch tweaks RTL expansion of multi-word shifts
Am 22.01.24 um 08:45 schrieb Richard Biener:
On Fri, Jan 19, 2024 at 5:06 PM Georg-Johann Lay wrote:
Am 18.01.24 um 20:54 schrieb Roger Sayle:
This patch tweaks RTL expansion of multi-word shifts and rotates to use
PLUS rather than IOR for disjunctive operations. During expansion of
On 1/22/24 00:45, Richard Biener wrote:
On Fri, Jan 19, 2024 at 5:06 PM Georg-Johann Lay wrote:
Am 18.01.24 um 20:54 schrieb Roger Sayle:
This patch tweaks RTL expansion of multi-word shifts and rotates to use
PLUS rather than IOR for disjunctive operations. During expansion of
these
On Fri, Jan 19, 2024 at 5:06 PM Georg-Johann Lay wrote:
>
>
>
> Am 18.01.24 um 20:54 schrieb Roger Sayle:
> >
> > This patch tweaks RTL expansion of multi-word shifts and rotates to use
> > PLUS rather than IOR for disjunctive operations. During expansion of
> > these operations, the middle-end
On Fri, Jan 19, 2024 at 5:50 PM Jeff Law wrote:
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>
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> On 1/19/24 09:05, Georg-Johann Lay wrote:
> >
> >
> > Am 18.01.24 um 20:54 schrieb Roger Sayle:
> >>
> >> This patch tweaks RTL expansion of multi-word shifts and rotates to use
> >> PLUS rather than IOR for disjunctive operations. During
On 1/19/24 09:05, Georg-Johann Lay wrote:
Am 18.01.24 um 20:54 schrieb Roger Sayle:
This patch tweaks RTL expansion of multi-word shifts and rotates to use
PLUS rather than IOR for disjunctive operations. During expansion of
these operations, the middle-end creates RTL like (X<>C2)
where
Am 18.01.24 um 20:54 schrieb Roger Sayle:
This patch tweaks RTL expansion of multi-word shifts and rotates to use
PLUS rather than IOR for disjunctive operations. During expansion of
these operations, the middle-end creates RTL like (X<>C2)
where the constants C1 and C2 guarantee that bits
On Fri, Jan 19, 2024 at 2:26 PM Roger Sayle wrote:
>
>
> Hi Richard,
>
> Thanks for the speedy review. I completely agree this patch
> can wait for stage1, but it's related to some recent work Andrew
> Pinski has been doing in match.pd, so I thought I'd share it.
>
> Hypothetically, recognizing
Hi Richard,
Thanks for the speedy review. I completely agree this patch
can wait for stage1, but it's related to some recent work Andrew
Pinski has been doing in match.pd, so I thought I'd share it.
Hypothetically, recognizing (x<<4)+(x>>60) as a rotation at the
tree-level might lead to a
On Thu, Jan 18, 2024 at 8:55 PM Roger Sayle wrote:
>
>
> This patch tweaks RTL expansion of multi-word shifts and rotates to use
> PLUS rather than IOR for disjunctive operations. During expansion of
> these operations, the middle-end creates RTL like (X<>C2)
> where the constants C1 and C2
This patch tweaks RTL expansion of multi-word shifts and rotates to use
PLUS rather than IOR for disjunctive operations. During expansion of
these operations, the middle-end creates RTL like (X<>C2)
where the constants C1 and C2 guarantee that bits don't overlap.
Hence the IOR can be performed
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