| Issue |
174077
|
| Summary |
[PAC][libunwind] Investigate potential performance regressions after #173765
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| Labels |
new issue
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| Assignees |
|
| Reporter |
kovdan01
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_Originally posted by @ojhunt in https://github.com/llvm/llvm-project/pull/173765#pullrequestreview-3619307751_:
I'm also curious about the performance impact of this change - I recall having to fight quite a bit at the time. The test case I was using was an overwhelmingly heavy amount of exception dispatch. The parsing itself should have been overwhelmed by the complexity of the dispatch yet I found significant performance regressions.
I actually wonder if we should make a pointer wrapper that can handle ptrauth types - it would make the behavior much more explicit and would Just Work (tm) as a parameter by making the argument type non-pod, and the inliner can flatten from there.
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