[llvm] [CVP] Infer nneg on existing zext (PR #72052)

[Nikita Popov via llvm-commits]

================
@@ -1032,6 +1033,24 @@ static bool processSExt(SExtInst *SDI, LazyValueInfo *LVI) {
   return true;
 }
 
+static bool processZExt(ZExtInst *SDI, LazyValueInfo *LVI) {
----------------
nikic wrote:

```suggestion
static bool processZExt(ZExtInst *ZExt, LazyValueInfo *LVI) {
```
Or something? Not sure what SDI is supposed to stand for here.

https://github.com/llvm/llvm-project/pull/72052