Nathan Sidwell 03fde97d49 [NFC] Refactor loop metadata movement
* Use 'if (T v = expr)' idiom
* llvm.loop is a fixed metadata ID

Differential Revision: https://reviews.llvm.org/D150109

Reviewed By: kazu
2023-05-09 18:43:59 -04:00
..
2022-12-14 21:16:22 -08:00