[turbofan] Add TruncateFloat32ToUint32 operator to Turbofan.

src/compiler/instruction-selector.cc

Index: src/compiler/instruction-selector.cc
diff --git a/src/compiler/instruction-selector.cc b/src/compiler/instruction-selector.cc
index 32ffc634e01efcb20cec6338e5ef9241bb8b400f..2f5bab4779ae1aed71d647af647994896e4d47bc 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -958,6 +958,8 @@ void InstructionSelector::VisitNode(Node* node) {
       return MarkAsWord32(node), VisitChangeFloat64ToUint32(node);
     case IrOpcode::kTruncateFloat32ToInt32:
       return MarkAsWord32(node), VisitTruncateFloat32ToInt32(node);
+    case IrOpcode::kTruncateFloat32ToUint32:
+      return MarkAsWord32(node), VisitTruncateFloat32ToUint32(node);
     case IrOpcode::kTryTruncateFloat32ToInt64:
       return MarkAsWord64(node), VisitTryTruncateFloat32ToInt64(node);
     case IrOpcode::kTryTruncateFloat64ToInt64: