PPC: [turbofan] Add TruncateFloat32ToUint32 operator to Turbofan.

src/compiler/ppc/instruction-selector-ppc.cc

Index: src/compiler/ppc/instruction-selector-ppc.cc
diff --git a/src/compiler/ppc/instruction-selector-ppc.cc b/src/compiler/ppc/instruction-selector-ppc.cc
index 97978a84d38ef8d29b4e1d4ffc699ca561b1d194..7c2c9426ef3c0e0565c3550d9634efe5af79f6e7 100644
--- a/src/compiler/ppc/instruction-selector-ppc.cc
+++ b/src/compiler/ppc/instruction-selector-ppc.cc
@@ -1021,12 +1021,12 @@ void InstructionSelector::VisitTruncateFloat64ToInt32(Node* node) {
 
 
 void InstructionSelector::VisitTruncateFloat32ToInt32(Node* node) {
-  return VisitRR(this, kPPC_DoubleToInt32, node);
+  VisitRR(this, kPPC_DoubleToInt32, node);
 }
 
 
 void InstructionSelector::VisitTruncateFloat32ToUint32(Node* node) {
-  UNIMPLEMENTED();
+  VisitRR(this, kPPC_DoubleToUint32, node);
 }