Integrated: 8351162: Clean up x86 (Macro)Assembler after 32-bit x86 removal

[Aleksey Shipilev]

On Mon, 14 Apr 2025 18:47:56 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This improvement targets x86 `(Macro)Assembler`. We are mostly cleaning up `LP64` predicated code blocks, and a bit of related code.
> 
> It is enticing to remove all `*ptr` methods, and rename all uses from `*ptr` to `*q`, but that turns out to be very intrusive. That is left for a future RFE, if we ever consider doing it.
> 
> Additional testing:
>  - [x] Linux x86_64 server fastdebug, `all`

This pull request has now been integrated.

Changeset: 9a5c7b3f
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/9a5c7b3fa90c7f550773e98ee9466ca1665aff4f
Stats:     1402 lines in 7 files changed: 5 ins; 1259 del; 138 mod

8351162: Clean up x86 (Macro)Assembler after 32-bit x86 removal

Reviewed-by: kvn, coleenp

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PR: https://git.openjdk.org/jdk/pull/24631