llvm-project

a074831c - [TableGen] Inherit properties from the nearest allocatable superclass. (#127018)

[TableGen] Inherit properties from the nearest allocatable superclass. (#127018) Previously isAlocatable was updated to allow inheritance from any superclass for a generated register class, but other properties are still inherited from its nearest superclass. This could cause a generated regclass inherit undesired properties, e.g., tsflags, from an unallocatable superclass due to the topological inheritance order. This change updates to inherit properties from the nearest allocatable superclass if possible and includes a test to demonstrate a potential incorrect inheritance of tsflags.