| commit | ae0ab2486287a914d9506ac2ff73e41063bf9a7e | [log] [tgz] |
|---|---|---|
| author | Sander de Smalen <sander.desmalen@arm.com> | Mon Nov 04 16:10:50 2024 +0000 |
| committer | GitHub <noreply@github.com> | Mon Nov 04 16:10:50 2024 +0000 |
| tree | 2ea070b04f480ef86519d17fe398bb3f5e73e82d | |
| parent | 3268d51a5c81be705a97216bf061fab9bb195ebe [diff] |
[TableGen] Fix calculation of Lanemask for RCs with artificial subregs. (#114392) TableGen builds up a map of "SubRegIdx -> Subclass" where Subclass is the largest class where all registers have SubRegIdx as a sub-register. When SubRegIdx (vis-a-vis the sub-register) is artificial it should still include it in the map. This map is used in various places, including in the calculation of the Lanemask of a register class, which otherwise calculates an incorrect lanemask.
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