Hello,
On Wed, 3 Aug 2022, Jeff Law via Gcc-patches wrote:
> > .optimized dump shows:
> >_1 = ABS_EXPR ;
> >_3 = _1 & 1;
> >return _3;
> >
> > altho combine simplifies it to x & 1 on RTL, resulting in code-gen:
> > f1:
> > and w0, w0, 1
> > ret
> Doesn't the
On Thu, Aug 4, 2022 at 12:40 AM Jeff Law via Gcc-patches
wrote:
>
>
>
> On 8/3/2022 2:44 PM, Prathamesh Kulkarni via Gcc-patches wrote:
> > On Thu, 4 Aug 2022 at 00:41, Sam Feifer via Gcc-patches
> > wrote:
> >> This patch adds a new optimization to match.pd. The pattern, -x & 1,
> >> now gets
On Wed, Aug 3, 2022 at 9:11 PM Sam Feifer via Gcc-patches
wrote:
>
> This patch adds a new optimization to match.pd. The pattern, -x & 1,
> now gets simplified to x & 1, reducing the number of instructions
> produced.
>
> This patch also adds tests for the optimization rule.
>
>
On 8/3/2022 2:44 PM, Prathamesh Kulkarni via Gcc-patches wrote:
On Thu, 4 Aug 2022 at 00:41, Sam Feifer via Gcc-patches
wrote:
This patch adds a new optimization to match.pd. The pattern, -x & 1,
now gets simplified to x & 1, reducing the number of instructions
produced.
Hi Sam,
No
On Thu, 4 Aug 2022 at 00:41, Sam Feifer via Gcc-patches
wrote:
>
> This patch adds a new optimization to match.pd. The pattern, -x & 1,
> now gets simplified to x & 1, reducing the number of instructions
> produced.
Hi Sam,
No comments on patch, but wondering if we can similarly add another
This patch adds a new optimization to match.pd. The pattern, -x & 1,
now gets simplified to x & 1, reducing the number of instructions
produced.
This patch also adds tests for the optimization rule.
Bootstrapped/regtested on x86_64-pc-linux-gnu, ok for trunk?
PR tree-optimization/106243
