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Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes
From: |
Aleksandar Markovic |
Subject: |
Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes |
Date: |
Tue, 25 Jun 2019 20:01:39 +0200 |
On Jun 25, 2019 5:42 PM, "Mark Cave-Ayland" <address@hidden>
wrote:
>
> The problem is that in tcg/tcg-op.h we define "DEF(dup2_vec, 1, 2, 0,
IMPLVEC |
> IMPL(TCG_TARGET_REG_BITS == 32))" and in the last patchset dup2_vec isn't
introduced
> until towards the end. Unfortunately it's not a simple as bringing the
patch forward
> within the series to maintain bisectability because the current
implementation
> depends on VMRG which only appears in the patch just before it...
>
My strong impression is that VMRG, VSPLT, VSLDOI, ... opcodes and basic
logic could have been defined very early in the series. (They all just
support other TCG vector operations. Their functionalty just helps achieve
other, exposed, backend functionalities.) That would reduce patch
dependencies and allow “patch mobility” within the rest of the series.
However, I am not positive at all that would solve the problem at hand.
Aleksandar
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, (continued)
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, Aleksandar Markovic, 2019/06/23
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, Richard Henderson, 2019/06/25
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, Mark Cave-Ayland, 2019/06/25
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, Richard Henderson, 2019/06/25
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, Mark Cave-Ayland, 2019/06/25
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, Richard Henderson, 2019/06/26
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, Mark Cave-Ayland, 2019/06/26
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, BALATON Zoltan, 2019/06/26
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, David Gibson, 2019/06/26
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, Richard Henderson, 2019/06/26
- Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes,
Aleksandar Markovic <=
Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes, David Gibson, 2019/06/19