RFR: 8273322: Enhance macro logic optimization for masked logic operations. [v2]

[Jatin Bhateja]

On Tue, 4 Jan 2022 02:21:35 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:
>> 
>>  - Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8273322
>>  - 8273322: Enhance macro logic optimization for masked logic operations.
>
> src/hotspot/cpu/x86/x86.ad line 1900:
> 
>> 1898: 
>> 1899:     case Op_MacroLogicV:
>> 1900:       if(bt != T_INT && bt != T_LONG) {
> 
> Missing `VM_Version::supports_evex()` check?

Hi @vnkozlov, we already have that check (UseAVX < 3) in match_rule_supported routine which gets called from this function.

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PR: https://git.openjdk.java.net/jdk/pull/6893