RFR (S): Failure after windows compiler upgrade

Kim Barrett kim.barrett at oracle.com
Tue Apr 28 20:26:37 UTC 2015

On Apr 28, 2015, at 3:07 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
> Kim,
> First, correctness fix is overweight performance benefits.
> Second, this is very urgent issue since we can't promote Hotspot for more then 3 weeks now.

I agree with David Holmes: "I'd accept the current fix as a temporary workaround to get the tests passing again.”  That isn’t how it’s been presented so far.  A CR for followup would address that concern.

> Fifth, 32-bit java on Windows is not as important as 64-bit version which is current mainstream. 

“not as important” is very different from “not important”.  Disabling the use of SSE may have widespread effects.  I know that gcc uses SSE in all sorts of not necessarily expected places when that feature is enabled.

> I don't know why you want to optimize it when it is slower than 64-bit anyway (which has more general registers and other benefits).

For the same reason we support it at all?

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