Requiring LLVM 14+ in PostgreSQL 18

From: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
To: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Requiring LLVM 14+ in PostgreSQL 18
Date: 2024-04-10 01:38:33
Message-ID: CA+hUKG+SOP-aR=YF_n0dtXGWeCy6x+Cn-RMWURU5ySQdmeKW1Q@mail.gmail.com
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Hi

PostgreSQL 18 will ship after these vacuum horizon systems reach EOL[1]:

animal | arch | llvm_version | os | os_release | end_of_support
---------------+---------+--------------+--------+------------+----------------
branta | s390x | 10.0.0 | Ubuntu | 20.04 | 2025-04-01
splitfin | aarch64 | 10.0.0 | Ubuntu | 20.04 | 2025-04-01
urutau | s390x | 10.0.0 | Ubuntu | 20.04 | 2025-04-01
massasauga | aarch64 | 11.1.0 | Amazon | 2 | 2025-06-30
snakefly | aarch64 | 11.1.0 | Amazon | 2 | 2025-06-30

Therefore, some time after the tree re-opens for hacking, we could rip
out a bunch of support code for LLVM 10-13, and then rip out support
for pre-opaque-pointer mode. Please see attached.

[1] https://www.postgresql.org/message-id/CA%2BhUKG%2B-g61yq7Ce4aoZtBDO98b4GXH8Cu3zxVk-Zn1Vh7TKpA%40mail.gmail.com

Attachment Content-Type Size
0001-jit-Require-at-least-LLVM-14-if-enabled.patch text/x-patch 16.3 KB
0002-jit-Use-opaque-pointers-in-all-supported-LLVM-versio.patch text/x-patch 8.1 KB

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