RFR: 8346787: Fix two C2 IR matching tests for RISC-V [v2]

[Fei Yang]

On Wed, 8 Jan 2025 11:43:00 GMT, Hamlin Li <mli at openjdk.org> wrote:

> Thanks for fixing the failing tests. Some comments, seems only powerOf2Minus1 in both tests failed. Can we only disable the IR verification of powerOf2Minus1, and keep other test enabled?

Good suggestion! I have updated accordingly and rerun the two tests. Both of them are now selected and pass. And IR verification of powerOf2Minus1 is skipped for riscv64 platform. Thanks.

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PR Comment: https://git.openjdk.org/jdk/pull/22874#issuecomment-2579024775