Integrated: 8367692: RISC-V: Align post call nop

[Robbin Ehn]

On Wed, 24 Sep 2025 11:52:20 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

> Hi please, consider.
> 
> As ziccif require instructions to natural aligned to be atomic the 4 byte post call nop must be aligned.
> But I don't want to add a c.nop(2b) to align the nop(4b) which means the jal(r) must also be algined.
> As we have no utility to aligned the end of an instruction sequence the call it self is aligned and uses only 4 byte instructions. Only in the case where we could use an two c-instruction we may loose space.
> 
> Thanks, Robbin

This pull request has now been integrated.

Changeset: 07ecc93d
Author:    Robbin Ehn <rehn at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/07ecc93dbd0b74e2362d369e22b5141289eb1f76
Stats:     144 lines in 7 files changed: 76 ins; 29 del; 39 mod

8367692: RISC-V: Align post call nop

Reviewed-by: fyang, fjiang, mli

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PR: https://git.openjdk.org/jdk/pull/27467