[llvm] [VPlan] Extend tryToFoldLiveIns to fold binary intrinsics (PR #161703)

[Luke Lau via llvm-commits]

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@@ -956,6 +975,14 @@ static Value *tryToFoldLiveIns(const VPRecipeBase &R, unsigned Opcode,
   }
 
   InstSimplifyFolder Folder(DL);
+  if (OpcodeOrIID.first) {
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lukel97 wrote:

Should we just call `getOpcodeOrIntrinsicID` on R here instead of plumbing it through as an argument?

https://github.com/llvm/llvm-project/pull/161703