[llvm] [IPSCCP][FuncSpec] Protect against metadata access from call args. (PR #124284)

[Alexandros Lamprineas via llvm-commits]

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@@ -415,6 +415,8 @@ Constant *InstCostVisitor::visitCallBase(CallBase &I) {
 
   for (unsigned Idx = 0, E = I.getNumOperands() - 1; Idx != E; ++Idx) {
     Value *V = I.getOperand(Idx);
+    if (isa<MetadataAsValue>(V))
+      continue;
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labrinea wrote:

Maybe abort completely with return nullptr if we decide to keep the check here?

https://github.com/llvm/llvm-project/pull/124284