RFR: 8256073: Improve vector rematerialization support

[Vladimir Kozlov]

On Thu, 19 Nov 2020 18:14:36 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> src/hotspot/share/prims/vectorSupport.cpp line 94:
>> 
>>> 92:       case T_FLOAT:  arr->bool_at_put(index,   (*(jint*)addr) != 0); break;
>>> 93:       case T_LONG:   // fall-through
>>> 94:       case T_DOUBLE: arr->bool_at_put(index,  (*(jlong*)addr) != 0); break;
>> 
>> Why you push `bool` value for everything?!!!
>
> Okay. After reading code more I understand that array is boolean type for case when `is_mask` is `true`. So changes are correct.

May be you need separate method to avoid this confusion. The code is separate anyway.

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PR: https://git.openjdk.java.net/jdk/pull/1136