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Subject: Re: [PATCH 2/3][vect] Consider outside costs earlier for epilogue
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Cc: Richard Sandiford <richard.sandiford@arm.com>,
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From: "Andre Vieira (lists)" <andre.simoesdiasvieira@arm.com>
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Hi,

I completely forgot I still had this patch out as well, I grouped it 
together with the unrolling because it was what motivated the change, 
but it is actually wider applicable and can be reviewed separately.

On 17/09/2021 16:32, Andre Vieira (lists) via Gcc-patches wrote:
> Hi,
>
> This patch changes the order in which we check outside and inside 
> costs for epilogue loops, this is to ensure that a predicated epilogue 
> is more likely to be picked over an unpredicated one, since it saves 
> having to enter a scalar epilogue loop.
>
> gcc/ChangeLog:
>
>         * tree-vect-loop.c (vect_better_loop_vinfo_p): Change how 
> epilogue loop costs are compared.