[llvm] [AMDGPU] Extend type support for update_dpp intrinsic (PR #114597)

[Stanislav Mekhanoshin via llvm-commits]

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@@ -5534,31 +5548,27 @@ bool AMDGPULegalizerInfo::legalizeLaneOp(LegalizerHelper &Helper,
     return true;
   }
 
-  if (Size % 32 != 0)
+  if (Size % SplitSize != 0)
     return false;
 
-  LLT PartialResTy = S32;
+  LLT PartialResTy = LLT::scalar(SplitSize);
   if (Ty.isVector()) {
     LLT EltTy = Ty.getElementType();
-    switch (EltTy.getSizeInBits()) {
-    case 16:
-      PartialResTy = Ty.changeElementCount(ElementCount::getFixed(2));
-      break;
-    case 32:
+    unsigned EltSize = EltTy.getSizeInBits();
+    if (EltSize == SplitSize)
       PartialResTy = EltTy;
-      break;
-    default:
-      // Handle all other cases via S32 pieces;
-      break;
-    }
+    else if (EltSize == 16 || EltSize == 32)
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rampitec wrote:

Done

https://github.com/llvm/llvm-project/pull/114597