[master] RFR: Load Klass from header, C1 [v10]

[Roman Kennke]

On Tue, 11 Jan 2022 16:46:10 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Roman Kennke has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 38 commits:
>> 
>>  - Merge branch 'master' into klass-from-header-c1
>>  - AArch64 implementation
>>  - Merge remote-tracking branch 'origin/klass-from-header-c1' into klass-from-header-c1
>>  - Merge remote-tracking branch 'upstream/master' into klass-from-header-c1
>>  - Increase code size estimate
>>  - Merge branch 'master' into klass-from-header-c1
>>  - Merge remote-tracking branch 'jdk-upstream/master' into klass-from-header-c1
>>  - Merge remote-tracking branch 'upstream/master' into klass-from-header-c1
>>  - Basic arm implementation
>>  - Basic s390 implementation
>>  - ... and 28 more: https://git.openjdk.java.net/lilliput/compare/e8ff7a0f...6136cf94
>
> src/hotspot/cpu/x86/c1_LIRAssembler_x86.cpp line 3531:
> 
>> 3529:   Register tmp = rscratch1;
>> 3530:   assert_different_registers(tmp, obj);
>> 3531:   assert_different_registers(tmp, result);
> 
> Wait, so this thing would not be executed for `!_LP64` anymore?

Indeed! Good catch! Will fix before push.

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PR: https://git.openjdk.java.net/lilliput/pull/20