[llvm] [X86] EltsFromConsecutiveLoads - handle trunc(wideload()) patterns (PR #199371)

[Simon Pilgrim via llvm-commits]

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@@ -8005,6 +8005,145 @@ static SDValue EltsFromConsecutiveLoads(EVT VT, ArrayRef<SDValue> Elts,
     }
   }
 
+  // STRIDED - element loads at a uniform byte stride larger than the element
+  // size are folded into wide load(s) + vector truncation.
+  unsigned LoadCount = LoadMask.popcount();
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RKSimon wrote:

yes, please lets go with the simpler LoadMask.isAllOnes() case for now

https://github.com/llvm/llvm-project/pull/199371