# Liveness: simplify logic · gitcafe/zig

[View on GitCafe](https://git.cafe/gitcafe/zig/commit/214f2fc395da2e6e5ffa592b89ea20db47d3fca6)

Repository: [gitcafe/zig](https://git.cafe/gitcafe/zig)

Visibility: public

Requested revision: 214f2fc395da2e6e5ffa592b89ea20db47d3fca6

Requested commit: 214f2fc395da2e6e5ffa592b89ea20db47d3fca6

Commit: 214f2fc395da2e6e5ffa592b89ea20db47d3fca6

Tree: 781db1654157a66fc0e3841011a34f434e33b80a

Author: mlugg

Committer: Veikka Tuominen

## Message

```
Liveness: simplify logic

`branch_deaths` was a relic from before I had a full understanding of
AIR's control flow structure, and so was unnecessary. This change
simplifies Liveness, fixes a bug exposed by #15235, and likely improves
performance (due to cloning hashmaps less often).

```

## Parents

- [6c41d435194d1777e1a2e50879c8d293a1f1e65f](https://git.cafe/gitcafe/zig/commit/6c41d435194d1777e1a2e50879c8d293a1f1e65f?format=markdown)

[Source at this commit](https://git.cafe/gitcafe/zig/tree/214f2fc395da2e6e5ffa592b89ea20db47d3fca6?format=markdown)