RFR(M): 8015396 - double a%b returns NaN for some (a, b) (|a| < inf, |b|>0)

[Coleen Phillimore]

Looks good.
Coleen

On 12/7/15 4:11 PM, Christian Tornqvist wrote:
> Hi everyone,
>
>   
>
> Please review this change that adds a workaround for a Windows x64 fmod
> issue found in Visual Studio 2013. Microsoft has acknowledged that this a
> problem but has said that they don't intend to fix it in Visual Studio 2013
> or 2015. The workaround is to use JDK libfdlibm's implementation of fmod
> instead of the CRT version for Windows x64 only.
>
>   
>
> The code (one function) was copied into the JVM and kept as close to the
> original as possible, this meant disabling a warning using pragma's and
> copying 2 #defines from a header file.
>
>   
>
> Webrev:
>
> http://cr.openjdk.java.net/~ctornqvi/webrev/8015396/webrev.00/index.html
>
>   
>
> Bug:
>
> https://bugs.openjdk.java.net/browse/JDK-8015396
>
>   
>
> Testing done on Windows x64:
>
> hotspot/test/:hotspot_all
>
> jdk/test/:tier1
>
> jdk/test/:tier2
>
> jdk/test/:tier3
>
> jck/api/java_math
>
> jck/lang
>
> jck/vm
>
>   
>
> Thanks,
>
> Christian
>
>   
>