[riscv-port-jdk17u:riscv-port] Integrated: 8305728: RISC-V: Use bexti instruction to do single-bit testing

[Dingli Zhang]

On Thu, 1 Jun 2023 09:30:05 GMT, Dingli Zhang <dzhang at openjdk.org> wrote:

> Hi, please review this backport to riscv-port-jdk17u.
> Backport of [JDK-8305728](https://bugs.openjdk.org/browse/JDK-8305728). The original patch cannot be directly applied because jdk17u has no [JDK-8299089](https://bugs.openjdk.org/browse/JDK-8299089) and [JDK-8301995](https://bugs.openjdk.org/browse/JDK-8301995).
> 
> Testing:
> - tier1-3 tests on QEMU-System w/ and w/o UseZbs (release build)
> - tier1-3 tests on unmatched board w/o UseZbs (release build)

This pull request has now been integrated.

Changeset: 170152a1
Author:    Dingli Zhang <dzhang at openjdk.org>
Committer: Fei Yang <fyang at openjdk.org>
URL:       https://git.openjdk.org/riscv-port-jdk17u/commit/170152a15499b911f365c8aab673ff35dd5c9802
Stats:     84 lines in 15 files changed: 12 ins; 0 del; 72 mod

8305728: RISC-V: Use bexti instruction to do single-bit testing

Reviewed-by: fjiang, fyang
Backport-of: 137513025dad06fc08818fa832edb4a487298f81

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PR: https://git.openjdk.org/riscv-port-jdk17u/pull/65