[llvm] [IPSCCP] Variable not visible at Og: (PR #77901)

[Carlos Alberto Enciso via llvm-commits]

CarlosAlbertoEnciso wrote:

Updated patch to fix assertion detected the BuildKite pre-commit CI:
```
llvm::APInt::getZExtValue() const:
`getActiveBits() <= 64 && "Too many bits for uint64_t"' failed.
```

https://github.com/llvm/llvm-project/pull/77901