[jdk21u] Integrated: 8314580: PhaseIdealLoop::transform_long_range_checks fails with assert "was tested before"

[Aleksey Shipilev]

On Wed, 1 Nov 2023 16:53:00 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to improve C2 stability.
> 
> Additional testing:
>  - [x] New regression test fails without fix, passes with it
>  - [x] Linux AArch64 server fastdebug, `tier1 tier2 tier3`

This pull request has now been integrated.

Changeset: 243142cf
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk21u/commit/243142cf0f579784bbc6fb56bc573d424775142e
Stats:     52 lines in 2 files changed: 46 ins; 4 del; 2 mod

8314580: PhaseIdealLoop::transform_long_range_checks fails with assert "was tested before"

Backport-of: 9def4538ab5456d689fd289bdef66fd1655773bc

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PR: https://git.openjdk.org/jdk21u/pull/316