[llvm] [InstCombine] Merge constant offset geps across variable geps (PR #156326)

[Yingwei Zheng via llvm-commits]

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@@ -2674,6 +2674,62 @@ static Instruction *canonicalizeGEPOfConstGEPI8(GetElementPtrInst &GEP,
   return nullptr;
 }
 
+// Combine constant offsets separated by variable offsets.
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dtcxzyw wrote:

Use `///`.

https://github.com/llvm/llvm-project/pull/156326