[llvm] [VectorCombine] Add special handling for truncating shuffles (PR #70013)

[Simon Pilgrim via llvm-commits]

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@@ -1472,21 +1472,27 @@ bool VectorCombine::foldShuffleFromReductions(Instruction &I) {
       dyn_cast<FixedVectorType>(Shuffle->getOperand(0)->getType());
   if (!ShuffleInputType)
     return false;
-  int NumInputElts = ShuffleInputType->getNumElements();
+  unsigned int NumInputElts = ShuffleInputType->getNumElements();
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RKSimon wrote:

unsigned int -> unsigned

https://github.com/llvm/llvm-project/pull/70013