[riscv-port-jdk11u:riscv-port] Integrated: 8337780: RISC-V: C2: Change C calling convention for sp to NS

[Gui Cao]

On Sun, 25 Aug 2024 14:36:24 GMT, Gui Cao <gcao at openjdk.org> wrote:

> Hi, Please help review this backport to riscv-port-jdk11u.
> Clean backport of JDK-8337780 to reduce frame size by 16 bytes and improve performance for some C2 runtime stubs as we do not have to save sp on the method entry.
> 
> ### Testing
> - [x] Run tier1-3 tests on SOPHON SG2042 (release)

This pull request has now been integrated.

Changeset: 1f90ddd3
Author:    Gui Cao <gcao at openjdk.org>
URL:       https://git.openjdk.org/riscv-port-jdk11u/commit/1f90ddd39f8ba6e7d59d4ca85161adc554b613e4
Stats:     2 lines in 1 file changed: 0 ins; 0 del; 2 mod

8337780: RISC-V: C2: Change C calling convention for sp to NS

Reviewed-by: fyang
Backport-of: 53db937dd0766695906dc20c1dbbd3228c02fe1e

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PR: https://git.openjdk.org/riscv-port-jdk11u/pull/26