OK, I will solve the comparison operation first and then do some check over
other operations.
Regards,
Demin
From: juzhe.zh...@rivai.ai
Sent: 2024年3月5日 17:02
To: Demin Han ; gcc-patches
Cc: kito.cheng ; pan2.li ; jeffreyalaw
; Robin Dapp ; richard.sandiford
Subject: Re: RE:[PATCH 3/5]
Yes. I think we are lacking some combine patterns to do all vector-scalar
combinations.
If you are interested at this topic, you can do some investigations on that (I
believe currently no body works on it for now).
I bet we should add some patterns for late-combine PASS for example:
(set (plus
Hi,
I applied the mentioned last_combine
patch(https://patchwork.ozlabs.org/project/gcc/patch/mptbka7em9w@arm.com/).
And did some initial tests.
Found that:
1. Float vector-scalar and vector-imm are OK
2. Integer vector-scalar is OK
3. Integer vector-imm(e.g. a[i] > 16) is
Hi juzhe,
Yes, for comparison between vector and scalar variable, this patch is not work,
because the scalar is duplicated in loop vectorize pass.
I have not found idea for this situation, so solve vector-imm comparison first.
Thanks for remind this, I will try that patch.
Thanks.
From: 钟居哲
Hi, han. I understand you are trying to support optimize vector-splat_vector
into vector-scalar in "expand" stage, that is,
vv - vx or vv - vf.
It's a known issue that we know for a long time.
This patch is trying to transform vv-vf when the splat vector is duplicate
from a constant (by
