eneficial we support high stride lane load/store
which can help us vectorize more cases.
juzhe.zh...@rivai.ai
From: Richard Biener
Date: 2023-10-09 20:41
To: Juzhe-Zhong
CC: gcc-patches; jeffreyalaw
Subject: Re: [PATCH] RISC-V Regression test: Fix FAIL of fast-math-slp-38.c for
RVV
On Mon, 9
On Mon, 9 Oct 2023, Juzhe-Zhong wrote:
> Reference: https://godbolt.org/z/G9jzf5Grh
>
> RVV is able to vectorize this case using SLP. However, with
> -fno-vect-cost-model, RVV vectorize it by vec_load_lanes with stride 6.
OK. Note load/store-lanes is specifically pre-empting SLP if all
loads/s
Reference: https://godbolt.org/z/G9jzf5Grh
RVV is able to vectorize this case using SLP. However, with
-fno-vect-cost-model,
RVV vectorize it by vec_load_lanes with stride 6.
gcc/testsuite/ChangeLog:
* gcc.dg/vect/fast-math-slp-38.c: Add ! vect_strided6.
---
gcc/testsuite/gcc.dg/vect/
