RFR 8199603: Build failures after JDK-8199421 "Add support for vector popcount"

Vladimir Kozlov vladimir.kozlov at oracle.com
Wed Mar 14 16:57:57 UTC 2018

Thank you, Aleksey, for fixing it fast!


On 3/14/18 4:18 AM, Aleksey Shipilev wrote:
> Bug:
>    https://bugs.openjdk.java.net/browse/JDK-8199603
> Fix:
>    http://cr.openjdk.java.net/~shade/8199603/webrev.01/
> The problem with the offending change was that the declaration for vpopcntd comes in shared 32/64
> assembler, but definition is in 64 assembler only. Assembler method is being used from shared 32/64
> x86.ad, so the simplest fix is moving the definition close to shared 32/64, near existing popcntl.
> Testing: x86_32 build, x86_64 compiler/vectorization/TestPopCountVector test
> (can run it through submit-hs, but I think it is too trivial to bother)
> Thanks,
> -Aleksey

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