[turbofan] Implemented the optional Float32RoundUp operator.

src/compiler/x64/instruction-selector-x64.cc

Index: src/compiler/x64/instruction-selector-x64.cc
diff --git a/src/compiler/x64/instruction-selector-x64.cc b/src/compiler/x64/instruction-selector-x64.cc
index f2deb97d1cc9e41915f5f2ad52821f43f755deb6..69e797f6eb91b3f286d2cc63d89e9f006e27d4e8 100644
--- a/src/compiler/x64/instruction-selector-x64.cc
+++ b/src/compiler/x64/instruction-selector-x64.cc
@@ -1148,6 +1148,11 @@ void InstructionSelector::VisitFloat64RoundDown(Node* node) {
 }
 
 
+void InstructionSelector::VisitFloat32RoundUp(Node* node) {
+  VisitRR(this, node, kSSEFloat32Round | MiscField::encode(kRoundUp));
+}
+
+
 void InstructionSelector::VisitFloat64RoundUp(Node* node) {
   VisitRR(this, node, kSSEFloat64Round | MiscField::encode(kRoundUp));
 }
@@ -1696,11 +1701,12 @@ InstructionSelector::SupportedMachineOperatorFlags() {
              MachineOperatorBuilder::kWord64Popcnt;
   }
   if (CpuFeatures::IsSupported(SSE4_1)) {
-    flags |= MachineOperatorBuilder::kFloat64RoundDown |
+    flags |= MachineOperatorBuilder::kFloat32RoundDown |
+             MachineOperatorBuilder::kFloat64RoundDown |
+             MachineOperatorBuilder::kFloat32RoundUp |
              MachineOperatorBuilder::kFloat64RoundUp |
              MachineOperatorBuilder::kFloat64RoundTruncate |
-             MachineOperatorBuilder::kFloat64RoundTiesEven |
-             MachineOperatorBuilder::kFloat32RoundDown;
+             MachineOperatorBuilder::kFloat64RoundTiesEven;
   }
   return flags;
 }