[turbofan]: Support using push instructions for setting up tail call parameters

src/compiler/gap-resolver.h

Index: src/compiler/gap-resolver.h
diff --git a/src/compiler/gap-resolver.h b/src/compiler/gap-resolver.h
index 19806f568a82faf27b5d6e60f12b195d1bed5208..7459b8964e5df898fd04bab84767df0d34dfb2fd 100644
--- a/src/compiler/gap-resolver.h
+++ b/src/compiler/gap-resolver.h
@@ -31,6 +31,22 @@ class GapResolver final {
   // Resolve a set of parallel moves, emitting assembler instructions.
   void Resolve(ParallelMove* parallel_move) const;
 
+  enum PushTypeFlag {
+    kImmediatePush = 0x1,
+    kScalarPush = 0x2,
+    kFloat32Push = 0x4,
+    kFloat64Push = 0x8,
+    kFloatPush = kFloat32Push | kFloat64Push
+  };
+
+  typedef base::Flags<PushTypeFlag> PushTypeFlags;
+
+  // Generate a list moves from an instruction that are candidates to be turned
+  // into push instructions on platforms that support them.
+  static void GetPushCompatibleMoves(Zone* zone, Instruction* instr,
+                                     PushTypeFlags push_type,
+                                     ZoneVector<MoveOperands*>* pushes);
+
  private:
   // Perform the given move, possibly requiring other moves to satisfy
   // dependencies.