[lworld] Integrated: 8348606: [lworld] Substitutability test may perform heap allocations

[Chen Liang]

On Thu, 13 Feb 2025 00:10:20 GMT, Chen Liang <liach at openjdk.org> wrote:

> Update substitutability test to use MethodHandles that access independent primitive/pointer instead heap reallocated copies of inlined values with an object header. Need long-term solution for user MethodHandle that accesses nested values in the future; hope the intrinsics can help in the future.
> 
> Testing: test/jdk/valhalla and test/hotspot/jtreg/*/valhalla, tier 1-3 tests running.

This pull request has now been integrated.

Changeset: 15a064c7
Author:    Chen Liang <liach at openjdk.org>
Committer: Tobias Hartmann <thartmann at openjdk.org>
URL:       https://git.openjdk.org/valhalla/commit/15a064c787fe5ef7972ad7d3de8f0c42b7a0a288
Stats:     298 lines in 6 files changed: 279 ins; 10 del; 9 mod

8348606: [lworld] Substitutability test may perform heap allocations

Co-authored-by: Tobias Hartmann <thartmann at openjdk.org>

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PR: https://git.openjdk.org/valhalla/pull/1364