RFR: 8266561: Remove Compile::_save_argument_registers

Claes Redestad redestad at openjdk.java.net
Thu May 6 13:00:55 UTC 2021


On Wed, 5 May 2021 18:40:54 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Compile::_save_argument_registers is always false, so I suggest removing it.
>> 
>> It was used in the past for certain stubs, but the last use appears to have been removed with [JDK-8136406](https://bugs.openjdk.java.net/browse/JDK-8136406)
>
> These are C2 changes and they look fine.
> 
> I thought we may do more clean up but C1 may pass must_gc_arguments to `RuntimeStub::new_runtime_stub()`.

@vnkozlov @TobiHartmann - thanks for reviewing!

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PR: https://git.openjdk.java.net/jdk/pull/3884


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