[llvm] [llvm-diff] Add associative on BinOp (PR #123314)

[Nikita Popov via llvm-commits]

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@@ -536,6 +536,21 @@ class FunctionDifferenceEngine {
       return true;
     }
 
+    if (L->getNumOperands() == 2 &&
+        Instruction::isAssociative(L->getOpcode())) {
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nikic wrote:

This should be isCommutative(), not isAssociative().

https://github.com/llvm/llvm-project/pull/123314