| Issue |
149802
|
| Summary |
[clang] Clang unnecessarily removes code during optimization (regression)
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
damiandcoherent
|
Putting these lines at the beginning of a function causes clang to remove the entire function. Does not happen if dummy variable inside the `if` is removed.
```
unsigned A = 32;
unsigned B = 1 << A;
if (B) { unsigned Dummy; }
```
Clang version: 15+, works fine in clang 14.
Optimization level: -O1 or higher
https://godbolt.org/z/554qxxnbz
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