Bug ID: JDK-8271515 Integration of JEP 417: Vector API (Third Incubator)

JDK-8271515 : Integration of JEP 417: Vector API (Third Incubator)

Type: Enhancement
Component: hotspot
Sub-Component: compiler
Affected Version: 18

Priority: P4
Status: Resolved
Resolution: Fixed

Submitted: 2021-07-29
Updated: 2024-02-27
Resolved: 2021-11-15

Versions (Unresolved/Resolved/Fixed)

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JDK 18
18 b24Fixed

Related Reports

Blocks :	JDK-8269306 - JEP 417: Vector API (Third Incubator)
CSR :	JDK-8274028 - Integration of JEP 417: Vector API (Third Incubator)
Duplicate :	JDK-8277121 - x86_32 fails Short*Vector tests
Relates :	JDK-8277508 - need to check has_predicated_vectors before calling scalable_predicate_reg_slots
Relates :	JDK-8277843 - [Vector API] scalar2vector generates incorrect type info for mask operations if Op_MaskAll is unavailable
Relates :	JDK-8279654 - jdk/incubator/vector/Vector256ConversionTests.java crashes randomly with SVE
Relates :	JDK-8288397 - AArch64: Fix register issues in SVE backend match rules
Relates :	JDK-8303161 - [vectorapi] VectorMask.cast narrow operation returns incorrect value with SVE
Relates :	JDK-8278525 - Additional -Wnonnull errors happen with GCC 11
Relates :	JDK-8286283 - assert(func2 == 0 && func3 == 0) failed: not unary
Relates :	JDK-8277239 - SIGSEGV in vrshift_reg_maskedNode::emit
Relates :	JDK-8277248 - 12 jdk/incubator/vector tests fail with EXCEPTION_ACCESS_VIOLATION in vrshift_reg_maskedNode::emit
Relates :	JDK-8326664 - Gather index checking under mask
Relates :	JDK-8280976 - Incorrect encoding of avx512 vpsraq instruction with mask and constant shift.

Sub Tasks

JDK-8262644 :	AArch64: SVE scalable predicate register allocation support - Closed
JDK-8267356 :	AArch64: Vector API SVE codegen support - Resolved
JDK-8272359 :	X86: Backend support for optimizing vector masked operations over AVX512 target. - Closed
JDK-8272706 :	Java impl and Compiler IR changes for masked vector operations. - Closed
JDK-8272709 :	AArch64: SVE backend support for masking operations with predicate feature - Closed

Description

Umbrella issue for tasks associated with integration of the third incubation of the Vector API.

Sub-task 1 will be integrated independently of other sub-tasks.

Sub-task 2 to 5 (related to mask supported) will be integrated under one PR, although it may be possible for ease of review to separate the relevant code changes.
The changes for these sub-tasks can currently be viewed from https://github.com/openjdk/panama-vector/tree/vectorIntrinsics and the vectorIntrinsics branch will be used to create the PR that updated in response to review comments.

Sub-tasks 1 to 5 require no specific CSRs, but some minor API fixes might be identified. Any such API updates will use a CSR associated with this issue.

Future sub-tasks, to be integrated independently, may be added for Vector API enhancements, which will require CSRs.

The JEP will be marked as integrated once all sub-tasks have been completed.

Comments

Changeset: a59c9b2a Author: Paul Sandoz <psandoz@openjdk.org> Date: 2021-11-15 21:48:38 +0000 URL: https://git.openjdk.java.net/jdk/commit/a59c9b2ac277d6ff6be1700d91ff389f137e61ca

15-11-2021