RFR: 8349361: C2: RShiftL should support all applicable transformations that RShiftI does [v14]

[Roland Westrelin]

On Fri, 14 Mar 2025 07:13:59 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Roland Westrelin 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 30 additional commits since the last revision:
>> 
>>  - test with Long.Min/Long.Max + CONST64
>>  - Merge branch 'master' into JDK-8349361
>>  - review
>>  - Update src/hotspot/share/opto/mulnode.cpp
>>    
>>    Co-authored-by: Christian Hagedorn <christian.hagedorn at oracle.com>
>>  - Update src/hotspot/share/opto/mulnode.hpp
>>    
>>    Co-authored-by: Christian Hagedorn <christian.hagedorn at oracle.com>
>>  - Update src/hotspot/share/opto/mulnode.cpp
>>    
>>    Co-authored-by: Christian Hagedorn <christian.hagedorn at oracle.com>
>>  - Update src/hotspot/share/opto/mulnode.cpp
>>    
>>    Co-authored-by: Christian Hagedorn <christian.hagedorn at oracle.com>
>>  - Update src/hotspot/share/opto/mulnode.cpp
>>    
>>    Co-authored-by: Christian Hagedorn <christian.hagedorn at oracle.com>
>>  - Update test/hotspot/jtreg/compiler/c2/irTests/RShiftLNodeIdealizationTests.java
>>    
>>    Co-authored-by: Emanuel Peter <emanuel.peter at oracle.com>
>>  - Update src/hotspot/share/opto/mulnode.cpp
>>    
>>    Co-authored-by: Emanuel Peter <emanuel.peter at oracle.com>
>>  - ... and 20 more: https://git.openjdk.org/jdk/compare/30ba4871...a56e397b
>
> Not sure if that still reproduces after your changes. LMK when I should run testing again.

@eme64 any update on testing?

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PR Comment: https://git.openjdk.org/jdk/pull/23438#issuecomment-2743358990