X87: [turbofan] Implemented the optional Float32RoundUp operator.

  port 4f494789 (r32262)

  original commit message:
  The Float32RoundUp operator rounds float32 numbers towards infinity.
  The operator is currently implemented on x64, ia32, arm, and arm64.

BUG=

Review URL: https://codereview.chromium.org/1491843003

Cr-Commit-Position: refs/heads/master@{#32515}

src/compiler/x87/instruction-selector-x87.cc

@@ -856,7 +856,11 @@ void InstructionSelector::VisitFloat64RoundDown(Node* node) {
 }
 
 
-void InstructionSelector::VisitFloat32RoundUp(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32RoundUp(Node* node) {
+  X87OperandGenerator g(this);
+  Emit(kX87Float32Round | MiscField::encode(kRoundUp), g.UseFixed(node, stX_0),
+       g.Use(node->InputAt(0)));
+}
 
 
 void InstructionSelector::VisitFloat64RoundUp(Node* node) {
@@ -1311,11 +1315,12 @@ InstructionSelector::SupportedMachineOperatorFlags() {
     flags |= MachineOperatorBuilder::kWord32Popcnt;
   }
 
-  flags |= MachineOperatorBuilder::kFloat64RoundDown |
+  flags |= MachineOperatorBuilder::kFloat32RoundDown |
+           MachineOperatorBuilder::kFloat64RoundDown |
+           MachineOperatorBuilder::kFloat32RoundUp |
            MachineOperatorBuilder::kFloat64RoundUp |
            MachineOperatorBuilder::kFloat64RoundTruncate |
-           MachineOperatorBuilder::kFloat64RoundTiesEven |
-           MachineOperatorBuilder::kFloat32RoundDown;
+           MachineOperatorBuilder::kFloat64RoundTiesEven;
   return flags;
 }