RFR: 8263649: AArch64: update cas.m4 to match current AD file

[Andrew Haley]

On Wed, 17 Mar 2021 09:56:43 GMT, Nick Gasson <ngasson at openjdk.org> wrote:

> There's a block of code in aarch64.ad that was generated from cas.m4 and
> is surrounded by:
> 
>   // BEGIN This section of the file is automatically generated. Do not edit --------------
> 
> However this section has been modified several times since it was
> generated and no longer matches the output of the M4 file. This patch
> updates cas.m4 to reflect the current code.

Thanks! Please update cas.m4 to sprinkle every single generated pattern with something like

  // This encoding class is generated automatically from cas.m4.
  // DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE

-------------

PR: https://git.openjdk.java.net/jdk/pull/3045