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From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/110625] [AArch64] Vect: SLP fails to vectorize a loop as
 the reduction_latency calculated by new costs is too large
Date: Fri, 28 Jul 2023 16:53:32 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110625

--- Comment #10 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.o=
rg> ---
Created attachment 55654
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D55654&action=3Dedit
Candidate patch (part 2)

Sorry for the delay.  I'm testing the attached two patches to fix the scala=
r FP
issue rate calculation.  It's enough to make us vectorise the testcase, but=
 we
(pointlessly) unroll two times without the fix for the latency calculation.=
=20
I'll review the latency patch soon.=