[aarch64-port-dev ] RFR: 8224880: AArch64: java/javac error with AllocatePrefetchDistance

Andrew Dinn adinn at redhat.com
Tue May 28 13:27:08 UTC 2019


On 28/05/2019 14:20, Andrew Haley wrote:
> The default AllocatePrefetchDistance is 3 * the dcache line size.
> 
> http://hg.openjdk.java.net/jdk/jdk11/file/tip/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp#l132
> 
> If the cache line size is 256, we trip over an error at
> 
> http://hg.openjdk.java.net/jdk/jdk11/file/tip/src/hotspot/share/runtime/flags/jvmFlagConstraintsCompiler.cpp#l93
> 
> This is because the prefetch distance is limited to 512.
> 
> Webrev: http://cr.openjdk.java.net/~aph/8224880/
Yup, good to go and trivial too! (i.e doesn't need another review).

regards,


Andrew Dinn
-----------
Senior Principal Software Engineer
Red Hat UK Ltd
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