[llvm] [InstCombine] Fold `(icmp eq/ne (or (select cond, 0/NZ, 0/NZ), X), 0)` (PR #88183)

[Yingwei Zheng via llvm-commits]

================
@@ -3491,6 +3491,57 @@ Instruction *InstCombinerImpl::foldICmpBinOpEqualityWithConstant(
       Value *And = Builder.CreateAnd(BOp0, NotBOC);
       return new ICmpInst(Pred, And, NotBOC);
     }
+    // (icmp eq (or (select cond, 0, NonZero), Other), 0)
+    //  -> (and cond, (icmp eq Other, 0))
+    // (icmp ne (or (select cond, NonZero, 0), Other), 0)
+    //  -> (or cond, (icmp ne Other, 0))
+    Value *Cond, *TV, *FV, *Other;
+    if (C.isZero() &&
+        match(BO,
+              m_OneUse(m_c_Or(m_Select(m_Value(Cond), m_Value(TV), m_Value(FV)),
----------------
dtcxzyw wrote:

```suggestion
              m_OneUse(m_c_Or(m_CombineAnd(m_Instruction(SelInst), m_Select(m_Value(Cond), m_Value(TV), m_Value(FV))),
```

https://github.com/llvm/llvm-project/pull/88183