[Beignet] [PATCH 1/2] Backend: Add optimization for negtive modifier

[Wang, Rander]

Hi Matt,

	Yes, LLVM makes the inverse transformation.

Rander

-----Original Message-----
From: Matt Turner [mailto:mattst88 at gmail.com] 
Sent: Tuesday, May 23, 2017 2:46 AM
To: Wang, Rander <rander.wang at intel.com>
Cc: beignet at freedesktop.org
Subject: Re: [Beignet] [PATCH 1/2] Backend: Add optimization for negtive modifier

On Wed, May 17, 2017 at 1:20 AM, rander.wang <rander.wang at intel.com> wrote:
>          LLVM transform Mad(a, -b, c) to
>          Add b, -b, 0
>          Mad val, a, b, c

I think you mean that LLVM translates

>          Add b, -b, 0
>          Mad val, a, b, c

to

> Mad(a, -b, c)

As it is written in your summary, it says that LLVM makes the inverse
transformation.