[llvm] [SLP] Fix isCommutative to check uses of the original instruction instead of the converted instruction. (PR #143094)

[Alexey Bataev via llvm-commits]

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@@ -511,15 +511,15 @@ static bool isSplat(ArrayRef<Value *> VL) {
 }
 
 /// \returns True if \p I is commutative, handles CmpInst and BinaryOperator.
-static bool isCommutative(Instruction *I) {
+static bool isCommutative(Instruction *I, Instruction *InstWithUses) {
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alexey-bataev wrote:

Need to update the description for the function

https://github.com/llvm/llvm-project/pull/143094