Add floor, ceil, round (truncate) instructions for ia32, x64 (if SSE4.1) and

src/compiler/raw-machine-assembler.h

Index: src/compiler/raw-machine-assembler.h
diff --git a/src/compiler/raw-machine-assembler.h b/src/compiler/raw-machine-assembler.h
index 35f884fd67e09e8bde358a199b6f7b5e6b2a2541..5e4bfe2e87cd32bd946bb5d81ada2a88edd2c8c3 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -45,7 +45,9 @@ class RawMachineAssembler : public GraphBuilder {
   };
 
   RawMachineAssembler(Graph* graph, MachineSignature* machine_sig,
-                      MachineType word = kMachPtr);
+                      MachineType word = kMachPtr,
+                      MachineOperatorBuilder::Flags flags =
+                          MachineOperatorBuilder::Flag::kNoFlags);
   virtual ~RawMachineAssembler() {}
 
   Isolate* isolate() const { return zone()->isolate(); }
@@ -380,6 +382,14 @@ class RawMachineAssembler : public GraphBuilder {
   Node* TruncateInt64ToInt32(Node* a) {
     return NewNode(machine()->TruncateInt64ToInt32(), a);
   }
+  Node* Float64Floor(Node* a) { return NewNode(machine()->Float64Floor(), a); }
+  Node* Float64Ceil(Node* a) { return NewNode(machine()->Float64Ceil(), a); }
+  Node* Float64RoundTruncate(Node* a) {
+    return NewNode(machine()->Float64RoundTruncate(), a);
+  }
+  Node* Float64RoundTiesAway(Node* a) {
+    return NewNode(machine()->Float64RoundTiesAway(), a);
+  }
 
   // Parameters.
   Node* Parameter(size_t index);