Integrated: 8267098: AArch64: C1 StubFrames end confusingly

[Alan Hayward]

On Fri, 14 May 2021 11:28:45 GMT, Alan Hayward <github.com+4146708+a74nh at openjdk.org> wrote:

> For many of the stub frames, a leave/ret is generated after the stub has
> already branched or returned. This is confusing. For these cases, replace
> the superfluous code with a should_not_reach_here
> 
> For handle excception, instead of storing return from the exception
> handler on the stack, it can be moved directly into lr, replacing a store and
> load with a single move. (If/when PAC support is implemented, then this store
> would also have to be signed).

This pull request has now been integrated.

Changeset: ff84577d
Author:    Alan Hayward <alan.hayward at arm.com>
Committer: Nick Gasson <ngasson at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/ff84577d72226da0bf1ce2c6d6852f3934feecf2
Stats:     38 lines in 1 file changed: 11 ins; 9 del; 18 mod

8267098: AArch64: C1 StubFrames end confusingly

Reviewed-by: aph

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PR: https://git.openjdk.java.net/jdk/pull/4030