git: openjdk/jdk: master: 8347499: C2: Make `PhaseIdealLoop` eliminate more redundant safepoints in loops

[SendaoYan]

Changeset: 093e1287
Branch: master
Author:    Qizheng Xing <qxing at openjdk.org>
Committer: SendaoYan <syan at openjdk.org>
Date:      2025-11-06 10:56:48 +0000
URL:       https://git.openjdk.org/jdk/commit/093e128771f3dc01f64a8572de068e9776e38b97

8347499: C2: Make `PhaseIdealLoop` eliminate more redundant safepoints in loops

Reviewed-by: epeter, roland

! src/hotspot/share/opto/loopnode.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestRedundantSafepointElimination.java
+ test/micro/org/openjdk/bench/vm/compiler/LoopSafepoint.java