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From: Sergey Kaplun via Tarantool-patches <tarantool-patches@dev.tarantool.org>
To: Maxim Kokryashkin <max.kokryashkin@gmail.com>
Cc: tarantool-patches@dev.tarantool.org
Subject: Re: [Tarantool-patches] [PATCH luajit v2] Cleanup math function compilation and fix inconsistencies.
Date: Mon, 22 Aug 2022 12:40:51 +0300	[thread overview]
Message-ID: <YwNPI8Tg4kSV7uTH@root> (raw)
In-Reply-To: <20220818232823.96280-1-m.kokryashkin@tarantool.org>

Hi, Maxim!

Thanks for the patch!
LGTM.

On 19.08.22, Maxim Kokryashkin wrote:
> This patch changes 'math_unary', `math_htrig` and `math_atrig`
> to `math_call` for math functions compilation. Now all of
> math functions in IRs are called with `CALLN` instead of
> `FPMATH` (`ATAN2` for `math.atan2`).
> 
> The `ATAN2` instruction itself is removed, as well as the fold
> optimization for it.
> 
> Also, this patch adds new fold optimizations for `CALLN`.
> 
> Part of tarantool/tarantool#7230
> ---
> As we decided offline, no tests are provided with this patch, because
> of their extreme complexity with no real benefits.
> 
> Branch: https://github.com/tarantool/luajit/tree/fckxorg/gh-7230-cleanup-math-inconsistencies
> PR: https://github.com/tarantool/tarantool/pull/7586
> 
>  src/lib_math.c      | 22 +++++++++++-----------
>  src/lj_asm.c        |  6 ------
>  src/lj_asm_arm.h    |  1 -
>  src/lj_asm_arm64.h  |  1 -
>  src/lj_asm_x86.h    |  2 --
>  src/lj_ffrecord.c   | 19 ++-----------------
>  src/lj_ir.h         |  4 +---
>  src/lj_ircall.h     | 14 +++++++++-----
>  src/lj_opt_fold.c   | 25 ++++++++++++++++++++++++-
>  src/lj_opt_split.c  |  3 ---
>  src/lj_target_x86.h |  6 ------
>  src/lj_vmmath.c     |  6 ------
>  12 files changed, 47 insertions(+), 62 deletions(-)
> 

<snipped>

> -- 
> 2.36.1
> 

-- 
Best regards,
Sergey Kaplun

  reply	other threads:[~2022-08-22  9:43 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-18 23:28 Maxim Kokryashkin via Tarantool-patches
2022-08-22  9:40 ` Sergey Kaplun via Tarantool-patches [this message]
2022-11-09 12:50   ` sergos via Tarantool-patches
2022-11-16 10:52     ` Maxim Kokryashkin via Tarantool-patches
2022-11-16 10:56       ` Maxim Kokryashkin via Tarantool-patches
2022-11-23  7:50 ` Igor Munkin via Tarantool-patches

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