Integrated: 8343964: RISC-V: Improve PrintOptoAssembly output for loadNKlassCompactHeaders node

[Fei Yang]

On Tue, 12 Nov 2024 02:55:48 GMT, Fei Yang <fyang at openjdk.org> wrote:

> Hi, please review this small change.
> 
> Currently, we print a simple `lwu` for this node, which is not accurate becasue we do a `ld` and logic shift right the loaded 64-bit value for this node. This simply changed it into `load_narrow_klass_compact` like other CPU platforms. After this change, we have:
> 
> 
> 070     B2: #   out( B8 B3 ) <- in( B1 )  Freq: 0.9
> 070 +   load_narrow_klass_compact R28, [R12, #4]        # compressed class ptr, #@loadNKlassCompactHeaders
> 
> 
> (Tagging: @Hamlin-Li)

This pull request has now been integrated.

Changeset: c78de7bf
Author:    Fei Yang <fyang at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/c78de7bf5fc5a4da50c6c64e181abf02a5b12630
Stats:     3 lines in 1 file changed: 0 ins; 0 del; 3 mod

8343964: RISC-V: Improve PrintOptoAssembly output for loadNKlassCompactHeaders node

Reviewed-by: mli, fjiang

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PR: https://git.openjdk.org/jdk/pull/22025