RE: Howto replicate failure of 8254790?

Thanks Vladimir and David, I have access to a new macbook with an Intel i7-9750H (supports AVX2) so I will try on that. -Original Message- From: Vladimir Kozlov Sent: 15 October 2020 20:25 To: David Holmes ; Tatton, Jason ; hotspot-compiler-...@openjdk.java.net; core-libs-dev

Howto replicate failure of 8254790?

Hi all, I am trying to replicate the failure of the tier2 test mentioned in 8254790 but I am only seeing it pass under an x86 linux machine. Are there any specific architectural constraints under which this test should be run in order to make

RE: 8173585: Intrinsify StringLatin1.indexOf(char)

Hi Everyone, Please could some reviewers volunteer their time to have a look at this patch? It was marked as a starter bug so I don't expect it will consume a lot of time. Thanks, Jason -Original Message- From: hotspot-dev On Behalf Of Jason Tatton Sent: 11 September 2020 11:24 To:

RE: JDK-8173585: Intrinsify StringLatin1.indexOf(char)

of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe. Hi Jason, With respect to the increased ns/op in the utf16_mixed_char benchmark, how should we understand the lower performance? Thanks, Roger On 9/8/20 8:02 AM, Tatton

RE: JDK-8173585: Intrinsify StringLatin1.indexOf(char)

with StringUTF16 indexOf(char) for x86 and ARM64. We can see above that this has been achieved. Similar results were obtained when running on ARM. Regards, Jason -Original Message- From: Andrew Haley Sent: 05 September 2020 15:47 To: Tatton, Jason ; hotspot-compiler-...@openjdk.java.net; core-libs

JDK-8173585: Intrinsify StringLatin1.indexOf(char)

Hi All, Please review the following patch: https://bugs.openjdk.java.net/browse/JDK-8173585 http://cr.openjdk.java.net/~phh/8173585/webrev.00/ This is an implementation of the indexOf(char) intrinsic for StringLatin1 (1 byte encoded Strings). It is provided for x86 and ARM64. The