llvm: fix UB in metadata printer #18387
| Job | Run time |
|---|---|
| 2h 40m 57s | |
| 50m 42s | |
| 52m 46s | |
| 4h 49m 21s | |
| 1h 21m 7s | |
| 4h 17m 53s | |
| 1h 43m 7s | |
| 1h 36m 45s | |
| 1h 0m 25s | |
| 25m 58s | |
| 19h 39m 1s |
| Job | Run time |
|---|---|
| 2h 40m 57s | |
| 50m 42s | |
| 52m 46s | |
| 4h 49m 21s | |
| 1h 21m 7s | |
| 4h 17m 53s | |
| 1h 43m 7s | |
| 1h 36m 45s | |
| 1h 0m 25s | |
| 25m 58s | |
| 19h 39m 1s |