RFR: 8280003: C1: Reconsider uses of logical_and immediates in LIRGenerator::do_getObjectSize

[Aleksey Shipilev]

On Fri, 14 Jan 2022 11:05:45 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> See the discussion in the bug.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `java/lang/instrument`
>  - [x] Linux x86_32 fastdebug `java/lang/instrument`
>  - [x] Linux AArch64 fastdebug `java/lang/instrument`
>  - [x] Linux PPC64 fastdebug `java/lang/instrument`
>  - [x] Linux x86_64 fastdebug `tier1`
>  - [x] Linux x86_32 fastdebug `tier1`
>  - [x] Linux AArch64 fastdebug `tier1`
>  - [x] Linux PPC64 fastdebug `tier1`

Adding @snazarkin as co-contributor, as #7076 is being subsumed by this issue.

-------------

PR: https://git.openjdk.java.net/jdk/pull/7080