On Fri, May 24, 2024 at 9:29 AM liuhongt wrote:
>
> Update in V3:
> > Since this was about vectorization can you instead add a testcase to
> > gcc.dg/vect/ and check for
> > vectorization to happen?
> Move to vect/pr112325.c.
> >
> > I believe the if (unr_insn <= 0) check can go as well.
> Removed
Update in V3:
> Since this was about vectorization can you instead add a testcase to
> gcc.dg/vect/ and check for
> vectorization to happen?
Move to vect/pr112325.c.
>
> I believe the if (unr_insn <= 0) check can go as well.
Removed.
> as said, you want to do
>
> curolli = false;
>
> aft
On Wed, May 22, 2024 at 7:07 AM liuhongt wrote:
>
> >> Hard to find a default value satisfying all testcases.
> >> some require loop unroll with 7 insns increment, some don't want loop
> >> unroll w/ 5 insn increment.
> >> The original 2/3 reduction happened to meet all those testcases(or the
> >>
On Wed, May 22, 2024 at 1:07 PM liuhongt wrote:
>
> >> Hard to find a default value satisfying all testcases.
> >> some require loop unroll with 7 insns increment, some don't want loop
> >> unroll w/ 5 insn increment.
> >> The original 2/3 reduction happened to meet all those testcases(or the
> >>
>> Hard to find a default value satisfying all testcases.
>> some require loop unroll with 7 insns increment, some don't want loop
>> unroll w/ 5 insn increment.
>> The original 2/3 reduction happened to meet all those testcases(or the
>> testcases are constructed based on the old 2/3).
>> Can we d
On Tue, May 21, 2024 at 4:35 AM Hongtao Liu wrote:
>
> On Wed, May 15, 2024 at 5:24 PM Richard Biener
> wrote:
> >
> > On Wed, May 15, 2024 at 4:15 AM Hongtao Liu wrote:
> > >
> > > On Mon, May 13, 2024 at 3:40 PM Richard Biener
> > > wrote:
> > > >
> > > > On Mon, May 13, 2024 at 4:29 AM liuho
On Wed, May 15, 2024 at 5:24 PM Richard Biener
wrote:
>
> On Wed, May 15, 2024 at 4:15 AM Hongtao Liu wrote:
> >
> > On Mon, May 13, 2024 at 3:40 PM Richard Biener
> > wrote:
> > >
> > > On Mon, May 13, 2024 at 4:29 AM liuhongt wrote:
> > > >
> > > > As testcase in the PR, O3 cunrolli may preve
C -std=gnu++14 LP64 note (test for
> >
> > g++warnings, line 56)
> >
> > g++: g++.dg/warn/Warray-bounds-20.C -std=gnu++14 note (test for
> >
> > g++warnings, line 66)
> >
> > g++: g++.dg/warn/Warray-bounds-20.C -std=gnu++17 LP64 note (test for
> >
> > g++warnings, line 56)
> >
> > g++: g++.dg/wa
On Wed, May 15, 2024 at 4:15 AM Hongtao Liu wrote:
>
> On Mon, May 13, 2024 at 3:40 PM Richard Biener
> wrote:
> >
> > On Mon, May 13, 2024 at 4:29 AM liuhongt wrote:
> > >
> > > As testcase in the PR, O3 cunrolli may prevent vectorization for the
> > > innermost loop and increase register press
On Mon, May 13, 2024 at 3:40 PM Richard Biener
wrote:
>
> On Mon, May 13, 2024 at 4:29 AM liuhongt wrote:
> >
> > As testcase in the PR, O3 cunrolli may prevent vectorization for the
> > innermost loop and increase register pressure.
> > The patch removes the 1/3 reduction of unr_insn for innermo
On Mon, May 13, 2024 at 4:29 AM liuhongt wrote:
>
> As testcase in the PR, O3 cunrolli may prevent vectorization for the
> innermost loop and increase register pressure.
> The patch removes the 1/3 reduction of unr_insn for innermost loop for UL_ALL.
> ul != UR_ALL is needed since some small loop
As testcase in the PR, O3 cunrolli may prevent vectorization for the
innermost loop and increase register pressure.
The patch removes the 1/3 reduction of unr_insn for innermost loop for UL_ALL.
ul != UR_ALL is needed since some small loop complete unrolling at O2 relies
the reduction.
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