[vectorIntrinsics+mask] RFR: 8273367: [Vector API] Fix a regression of rearrange intrinsic after JDK-8272479

[Jie Fu]

On Mon, 6 Sep 2021 07:58:37 GMT, Ningsheng Jian <njian at openjdk.org> wrote:

>> Hi all, 
>> 
>> After JDK-8272479, the following crash was observed on x86 with `-ea -esa -Xcomp -XX:CompileThreshold=100`
>> 
>> 
>> test Double256VectorTests.RearrangeDouble256VectorTests(double[-i * 5], shuffle[random]): success
>> test Double256VectorTests.RearrangeDouble256VectorTests(double[i * 5], shuffle[random]): success
>> test Double256VectorTests.RearrangeDouble256VectorTests(double[i + 1], shuffle[random]): success
>> test Double256VectorTests.RearrangeDouble256VectorTests(double[cornerCaseValue(i)], shuffle[random]): success
>> o114  ReplicateD  === _ o73  [[o340 ]]  #vectory[4]:{double}
>> 
>> --N: o114  ReplicateD  === _ o73  [[o340 ]]  #vectory[4]:{double}
>> 
>>    --N: o73  ConI  === o0  [[o166 o173 o114 ]]  #int:0
>>    IMMI  10  IMMI
>>    IMMI_0  0  IMMI_0
>>    IMMI2  0  IMMI2
>>    IMMU7  5  IMMU7
>>    IMMI8  5  IMMI8
>>    IMMU8  5  IMMU8
>>    IMMI16  10  IMMI16
>>    IMMU31  0  IMMU31
>>    RREGI  50  loadConI0
>>    RAX_REGI  50  loadConI0
>>    RBX_REGI  50  loadConI0
>>    RCX_REGI  50  loadConI0
>>    RDX_REGI  50  loadConI0
>>    RDI_REGI  50  loadConI0
>>    NO_RAX_RDX_REGI  50  loadConI0
>>    STACKSLOTI  150  storeSSI
>> 
>> 
>> This is because the type of broadcasted ZERO is incorrect.
>> 
>> Other affected tests include
>> 
>> jdk/incubator/vector/DoubleMaxVectorTests.java
>> jdk/incubator/vector/Float128VectorTests.java
>> jdk/incubator/vector/Float256VectorTests.java
>> jdk/incubator/vector/FloatMaxVectorTests.java
>> jdk/incubator/vector/Long256VectorTests.java
>> jdk/incubator/vector/LongMaxVectorTests.java
>> 
>> 
>> Let's fix it.
>> 
>> Thanks.
>> Best regards,
>> Jie
>
> Marked as reviewed by njian (Committer).

@nsjian and @jatin-bhateja , need your help to sponsor it.
Thanks.

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PR: https://git.openjdk.java.net/panama-vector/pull/120