[Beignet] [PATCH] Turn on OCL_STRICT_CONFORMANCE as default.

[Song, Ruiling]

I think this is good. Now we comply with spec and users can still make their own choice.
LGTM

> -----Original Message-----
> From: Beignet [mailto:beignet-bounces at lists.freedesktop.org] On Behalf Of
> Yang Rong
> Sent: Monday, June 15, 2015 4:35 PM
> To: beignet at lists.freedesktop.org
> Cc: Yang, Rong R
> Subject: [Beignet] [PATCH] Turn on OCL_STRICT_CONFORMANCE as default.
> 
> Also update README.md.
> 
> Signed-off-by: Yang Rong <rong.r.yang at intel.com>
> ---
>  backend/src/backend/program.cpp | 2 +-
>  docs/Beignet.mdwn               | 6 +++---
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/backend/src/backend/program.cpp
> b/backend/src/backend/program.cpp index 5d1ea23..e4cdeaa 100644
> --- a/backend/src/backend/program.cpp
> +++ b/backend/src/backend/program.cpp
> @@ -113,7 +113,7 @@ namespace gbe {
> 
>  #ifdef GBE_COMPILER_AVAILABLE
>    BVAR(OCL_OUTPUT_GEN_IR, false);
> -  BVAR(OCL_STRICT_CONFORMANCE, false);
> +  BVAR(OCL_STRICT_CONFORMANCE, true);
> 
>    bool Program::buildFromLLVMFile(const char *fileName, const void*
> module, std::string &error, int optLevel) {
>      ir::Unit *unit = new ir::Unit();
> diff --git a/docs/Beignet.mdwn b/docs/Beignet.mdwn index
> c0650bb..840f028 100644
> --- a/docs/Beignet.mdwn
> +++ b/docs/Beignet.mdwn
> @@ -195,11 +195,11 @@ Known Issues
>  * Precision issue.
>    Currently Gen does not provide native support of high precision math
> functions
>    required by OpenCL. We provide a software version to achieve high
> precision,
> -  which you can turn on through
> +  which you can turn off through
> 
> -  `# export OCL_STRICT_CONFORMANCE=1`.
> +  `# export OCL_STRICT_CONFORMANCE=0`.
> 
> -  But be careful, this would make your CL kernel run a little longer.
> +  This would lost some precision but gain performance.
> 
>  * cl\_khr\_gl\_sharing.
>    This extension highly depends on mesa support. It seems that mesa
> would not provide
> --
> 1.8.3.2
> 
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