regression tests fails with llvm22

[Pavel Stehule]

Hi

I did upgrade today

pavel@nemesis:~/src/postgresql$ uname -a
Linux nemesis 6.19.5-300.fc44.x86_64 #1 SMP PREEMPT_DYNAMIC Sat Feb 28
00:00:53 UTC 2026 x86_64 GNU/Linux

pavel@nemesis:~/src/postgresql$ llvm-config --version
22.1.0

and regression tests fails

cat
/home/pavel/src/postgresql/src/test/isolation/output_iso/regression.diffs
diff -U3
/home/pavel/src/postgresql/src/test/isolation/expected/multixact-stats.out
/home/pavel/src/postgresql/src/test/isolation/output_iso/results/multixact-stats.out
---
/home/pavel/src/postgresql/src/test/isolation/expected/multixact-stats.out
2026-02-19 05:31:42.337867043 +0100
+++
/home/pavel/src/postgresql/src/test/isolation/output_iso/results/multixact-stats.out
2026-03-03 06:00:45.850492589 +0100
@@ -68,22 +68,11 @@
     ]
   ) AS r(assertion, ok);

-assertion               |ok
-------------------------+--
-is_init_mxids           |t
-is_init_members         |t
-is_init_oldest_mxid     |t
-is_init_oldest_off      |t
-is_oldest_mxid_nondec_01|t
-is_oldest_mxid_nondec_12|t
-is_oldest_off_nondec_01 |t
-is_oldest_off_nondec_12 |t
-is_members_increased_ge1|t
-is_mxids_nondec_01      |t
-is_mxids_nondec_12      |
-is_members_nondec_01    |
-is_members_nondec_12    |
-(13 rows)
+FATAL:  fatal llvm error: Broken module found, compilation aborted!
+server closed the connection unexpectedly
+ This probably means the server terminated abnormally
+ before or while processing the request.

 step s1_commit: COMMIT;
-step s2_commit: COMMIT;
+failed to send query for step s2_commit: no connection to the server
+

Regards

Pavel