RFR: 8330262: C2: simplify transfer of GC barrier data from Ideal to Mach nodes

Mon Apr 15 17:11:41 UTC 2024

On Mon, 15 Apr 2024 12:49:31 GMT, Roberto Castañeda Lozano <rcastanedalo at openjdk.org> wrote:

> This (trivial?) cleanup reuses `MemNode::barrier_data()` (added recently by [JDK-8322692](https://bugs.openjdk.org/browse/JDK-8322692)) to compute the GC barrier data to be transferred from Ideal nodes to their corresponding Mach nodes in `Matcher::ReduceInst()`.
> 
> **Testing:** tier1-3 (windows-x64, linux-x64, linux-aarch64, and macosx-x64; release and debug mode).

Good.

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Marked as reviewed by kvn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18784#pullrequestreview-2001738869