[llvm] [InstCombine] Look through freeze to find insert instruction (PR #86948)

[Mariusz Sikora via llvm-commits]

================
@@ -173,6 +173,12 @@ Value *llvm::findScalarElement(Value *V, unsigned EltNo) {
   if (Constant *C = dyn_cast<Constant>(V))
     return C->getAggregateElement(EltNo);
 
+  if (auto *F = dyn_cast<FreezeInst>(V)) {
+    if (isGuaranteedNotToBeUndefOrPoison(F)) {
----------------
mariusz-sikora-at-amd wrote:

oh no :/

https://github.com/llvm/llvm-project/pull/86948