[riscv-port-jdk17u:riscv-port] RFR: 8307150: RISC-V: Remove remaining StoreLoad barrier with UseCondCardMark for Serial/Parallel GC

[Fei Yang]

On Mon, 22 May 2023 03:14:32 GMT, Feilong Jiang <fjiang at openjdk.org> wrote:

> Hi,
> Please review this clean backport of [JDK-8307150](https://bugs.openjdk.org/browse/JDK-8307150) to riscv-port-jdk17u.
> Same as the mainline, this `StoreLoad` barrier is no longer needed after the removal of CMS.

OK. We should have this so that we are on-par with other CPUs like aarch64.

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Marked as reviewed by fyang (Lead).

PR Review: https://git.openjdk.org/riscv-port-jdk17u/pull/55#pullrequestreview-1438337717