RFR (S): 7174532: jdk/test/java/lang/Math/WorstCaseTests.java failing on x86 (original) (raw)

Vladimir Kozlov vladimir.kozlov at oracle.com
Thu Jun 7 09:43:04 PDT 2012

Thank you, Roland

Could you rename verify_ctw() to verify_fpu_ctw() since there are other control words. Could you explain why it is only problem in VM 32-bit and add comment?

Thanks, Vladimir

Roland Westrelin wrote:

http://cr.openjdk.java.net/~roland/7174532/webrev.00/

pow and exp as computed by the new intrinsics on x86 do not provide sufficiently precise results. This change increases the precision for the steps of the pow and exp computation. Roland.

More information about the hotspot-compiler-dev mailing list