[llvm] [InstCombine] Simplify nonnull phi nodes (PR #128466)

[Nikita Popov via llvm-commits]

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@@ -996,7 +996,7 @@ Value *InstCombinerImpl::simplifyNonNullOperand(Value *V,
   if (!V->hasOneUse())
     return nullptr;
 
-  if (Depth == 1)
+  if (Depth == 2)
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nikic wrote:

Sounds reasonable

https://github.com/llvm/llvm-project/pull/128466