RFR: 8337702: Use new ForwardExceptionNode to call StubRoutines::forward_exception_entry() [v2]

[Tobias Hartmann]

On Fri, 9 Aug 2024 19:53:33 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> src/hotspot/cpu/aarch64/aarch64.ad line 16188:
>> 
>>> 16186: 
>>> 16187: // Forward exception.
>>> 16188: instruct ForwardExceptionjmp()
>> 
>> Suggestion:
>> 
>> instruct ForwardException()
>> 
>> 
>> Same for other AD files.
>
> We can't use the same name for Mach node as for Ideal node:
> 
> src/hotspot/cpu/x86/x86_64.ad(12596) Syntax Error: :duplicate name ForwardException for instruction
> Error Context:  >>>(<<<)
> src/hotspot/cpu/x86/x86_64.ad(12597) Syntax Error: :Identifier expected, but found '%{
>   match(ForwardEx[...]'.
> Error Context:  >>>%<<<{

Ah, makes sense.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20437#discussion_r1713185542