Submit code-stubs-mips.cc.

src/mips/frames-mips.h

Index: src/mips/frames-mips.h
diff --git a/src/mips/frames-mips.h b/src/mips/frames-mips.h
index 788bd4eef5815bd647cb7b96e8ce195d0727ff62..fd93e8b28002aa3a2454dd865c5d4fcf7432e1c1 100644
--- a/src/mips/frames-mips.h
+++ b/src/mips/frames-mips.h
@@ -101,22 +101,24 @@ class EntryFrameConstants : public AllStatic {
 
 class ExitFrameConstants : public AllStatic {
  public:
-  static const int kDebugMarkOffset = -1 * kPointerSize;
-  // Must be the same as kDebugMarkOffset. Alias introduced when upgrading.
-  static const int kCodeOffset = -1 * kPointerSize;
-  static const int kSPOffset = -1 * kPointerSize;
+  // See some explanation in MacroAssembler::EnterExitFrame.
+  // This marks the top of the extra allocated stack space.
+  static const int kStackSpaceOffset = -3 * kPointerSize;
+
+  static const int kCodeOffset = -2 * kPointerSize;
 
-  // TODO(mips): Use a patched sp value on the stack instead.
-  // A marker of 0 indicates that double registers are saved.
-  static const int kMarkerOffset = -2 * kPointerSize;
+  static const int kSPOffset = -1 * kPointerSize;
 
   // The caller fields are below the frame pointer on the stack.
   static const int kCallerFPOffset = +0 * kPointerSize;
   // The calling JS function is between FP and PC.
   static const int kCallerPCOffset = +1 * kPointerSize;
 
+  // MIPS-specific: a pointer to the old sp to avoid unnecessary calculations.
+  static const int kCallerSPOffset = +2 * kPointerSize;
+
   // FP-relative displacement of the caller's SP.
-  static const int kCallerSPDisplacement = +3 * kPointerSize;
+  static const int kCallerSPDisplacement = +2 * kPointerSize;
 };