RFR 8079562: Crash in C2 compiled code with STATUS_FLOAT_MULTIPLE_TRAPS

[David Holmes]

Hi Coleen,

On 3/08/2016 8:34 AM, Coleen Phillimore wrote:
> Summary: Add AlwaysRestoreFPU and move the test to jtreg.
> Contributed-by: myself and christian.tornqvist at oracle.com
>
> Christian moved the test, I did some cleanup and added AlwaysRestoreFPU
> to it.

You modified the original C code such that this comment is no longer valid:

   33 // Only valid for specific x86 based systems: linux-x86, or else 
x86 with fpu_control.h

Not sure why you did that - we were running this test on more than just 
Windows, despite the naming.

I'm also unclear exactly what changed such that we need to add 
AlwaysRestoreFPU ??

Can you add @Summary info to the Java test (and/or other commentary) as 
it is far from clear exactly what this is testing.

Thanks,
David

> open webrev at http://cr.openjdk.java.net/~coleenp/8079562.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8079562
>
> Tested with JPRT.
>
> thanks,
> Coleen