[Beignet] [PATCH 4/5] Backend: Optimization internal math, use mad

[Lupescu, Grigore]

I confirm some tests are failing for IVB architecture. I am looking into this issue.

I ran the conformance on IVB i7-3770K (patchset 1,2,3,4 - without the patch 5 clc) which gave: FAILED 4 of 98 tests i.e. failed on log1p, atanh, cosh, sinh. 
Changes to those functions are done in patch 4. Applying only first 3 patches results in all tests passing for IVB.

I did not experience any of these failures on HSW or BDW architecture.

-----Original Message-----
From: Yang, Rong R 
Sent: Thursday, June 23, 2016 9:13 AM
To: Song, Ruiling <ruiling.song at intel.com>; Lupescu, Grigore <grigore.lupescu at intel.com>; beignet at lists.freedesktop.org
Subject: RE: [Beignet] [PATCH 4/5] Backend: Optimization internal math, use mad

This patchset will cause some math utests fail in IVB, such as builtin_acos_asin, builtin_lgamma_float and so on.

> -----Original Message-----
> From: Beignet [mailto:beignet-bounces at lists.freedesktop.org] On Behalf 
> Of Song, Ruiling
> Sent: Monday, June 6, 2016 16:39
> To: Lupescu, Grigore <grigore.lupescu at intel.com>; 
> beignet at lists.freedesktop.org
> Subject: Re: [Beignet] [PATCH 4/5] Backend: Optimization internal 
> math, use mad
> 
> The first four patches look good. But personally I don't think the 5th 
> patch is proper for merge, although I am not good at copyright topics.
> 
> Thanks!
> Ruiling
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