[jdk11u-dev] Integrated: 8288445: AArch64: C2 compilation fails with guarantee(!true || (true && (shift != 0))) failed: impossible encoding

[William Kemper]

On Tue, 18 Oct 2022 16:05:28 GMT, William Kemper <wkemper at openjdk.org> wrote:

> [JDK-8288445](https://bugs.openjdk.org/browse/JDK-8288445)
> AArch64: C2 compilation fails with guarantee(!true || (true && (shift != 0))) failed: impossible encoding
> 
> Backport is not clean, but is not complicated. Some of the instructions patched in later releases do not exist in 11. The test passes _before_ and _after_ the patch is applied.

This pull request has now been integrated.

Changeset: a2b2a229
Author:    William Kemper <wkemper at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
URL:       https://git.openjdk.org/jdk11u-dev/commit/a2b2a2292cf2f96e37182dff1549f21fbedca912
Stats:     97 lines in 2 files changed: 83 ins; 0 del; 14 mod

8288445: AArch64: C2 compilation fails with guarantee(!true || (true && (shift != 0))) failed: impossible encoding

Reviewed-by: phh
Backport-of: b4490386fe348250e88347526172c1c27ef01eba

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PR: https://git.openjdk.org/jdk11u-dev/pull/1462