Chenguang Wang d5ec49ff3d [mlir] Initialize DefaultTimingManager::out. (#87522) ...

`DefaultTimingManager::clear()` uses `out` to initialize `TimerImpl`,
but the `out` is `nullptr` by default. This means if
`DefaultTimingManager::setOutput()` is never called,
`DefaultTimingManager` destructor may generate SIGSEGV.

2024-04-03 10:56:55 -07:00

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