Bug ID: JDK-8279219 [REDO] C2 crash when allocating array of size too large

Type: Bug
Component: hotspot
Sub-Component: compiler
Affected Version: 11,17,18,19

Priority: P3
Status: Resolved
Resolution: Fixed

Submitted: 2021-12-23
Updated: 2022-08-12
Resolved: 2022-02-02

JDK 11	JDK 17	JDK 18	JDK 19
11.0.16-oracleFixed	17.0.4-oracleFixed	18.0.2Fixed	19 b08Fixed

The original fix caused problems and was backed out. This bug should redo the fix which should also fix the found problems with JDK-8278413:
- JDK-8279021
- JDK-8279062
- JDK-8279125

Fix request [11u] I backport this for parity with 11.0.16-oracle. This is a quite big change in C2 bringing a certain risk. But as it fixes a bug I think we shoul take it to 11. Also, it was quite well tested in the course of development until it finally made it into the repo. I had to resolve sereval trivial issues. No code changes. Tests pass. SAP nightly testing passed.
05-04-2022
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk11u-dev/pull/990 Date: 2022-04-02 09:44:57 +0000
02-04-2022
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk18u/pull/69 Date: 2022-03-29 15:26:49 +0000
29-03-2022
Fix Request (JDK 18u) Fixes a crash in C2. The fix is medium risk and applies cleanly. Already tested and backported to Oracle JDK 17u. Tier 1-3 testing is running for JDK 18u.
29-03-2022
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk17u-dev/pull/296 Date: 2022-03-29 12:31:02 +0000
29-03-2022
Fix Request (17u): Should get backported for parity with 17.0.4-oracle. Applies cleanly. Tests have passed.
29-03-2022
Changeset: d32f99ee Author: Roland Westrelin <roland@openjdk.org> Date: 2022-02-02 07:34:22 +0000 URL: https://git.openjdk.java.net/jdk/commit/d32f99ee65679601d6e160e7975fc1e367bfa6f4
02-02-2022
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk/pull/6952 Date: 2022-01-04 08:51:30 +0000
04-01-2022
ILW = Same as JDK-8278413 = P3
23-12-2021

Relates :	JDK-8279125 - fatal error: no reachable node should have no use
Relates :	JDK-8279062 - C2: assert(t->meet(t0) == t) failed: Not monotonic after JDK-8278413
Relates :	JDK-8288184 - C2 compilation asserts with "Bad graph detected in compute_lca_of_uses"
Relates :	JDK-8291665 - C2: assert compiling SSLEngineInputRecord::decodeInputRecord
Relates :	JDK-8279021 - Shenandoah: assert(dead != C->root()) failed: killing root, eh? after JDK-8278413
Relates :	JDK-8292260 - [BACKOUT] JDK-8279219: [REDO] C2 crash when allocating array of size too large
Relates :	JDK-8278413 - C2 crash when allocating array of size too large
Relates :	JDK-8279204 - [BACKOUT] JDK-8278413: C2 crash when allocating array of size too large
Relates :	JDK-8284369 - TestFailedAllocationBadGraph fails with -XX:TieredStopAtLevel < 4
Relates :	JDK-8292301 - [REDO v2] C2 crash when allocating array of size too large