RFR: 8319973: AArch64: Save and restore FPCR in the call stub

[Andrew Dinn]

On Mon, 13 Nov 2023 18:18:35 GMT, Andrew Haley <aph at openjdk.org> wrote:

> On AArch64 we don't save and restore the default floating-point control state when we enter and leave Java code. We really should, because if we're called via the JNI invocation interface with a weird FP control state we'll not be Java compatible.

All looks good.

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Marked as reviewed by adinn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/16637#pullrequestreview-1734351073