RFR: 8305008: RISC-V: Factor out immediate checking functions from assembler_riscv.inline.hpp

[Dingli Zhang]

On Tue, 28 Mar 2023 06:07:27 GMT, Dingli Zhang <dzhang at openjdk.org> wrote:

> The tier2-tier3 tests are in progress and I will update the test results later.

Tier2 and tier3 passed without new failure.

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PR Comment: https://git.openjdk.org/jdk/pull/13202#issuecomment-1488509692