X87: enable the crankshaft compiler for X87 port.

src/x87/macro-assembler-x87.h

Index: src/x87/macro-assembler-x87.h
diff --git a/src/x87/macro-assembler-x87.h b/src/x87/macro-assembler-x87.h
index 1fdca3c9f6f65522057c59591dff7ccb51f0b6df..d410e56f48a672faa3cf6492c921e425d846a457 100644
--- a/src/x87/macro-assembler-x87.h
+++ b/src/x87/macro-assembler-x87.h
@@ -76,6 +76,7 @@ class MacroAssembler: public Assembler {
   void RememberedSetHelper(Register object,  // Used for debug code.
                            Register addr,
                            Register scratch,
+                           SaveFPRegsMode save_fp,
                            RememberedSetFinalAction and_then);
 
   void CheckPageFlag(Register object,
@@ -150,6 +151,7 @@ class MacroAssembler: public Assembler {
       int offset,
       Register value,
       Register scratch,
+      SaveFPRegsMode save_fp,
       RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET,
       SmiCheck smi_check = INLINE_SMI_CHECK,
       PointersToHereCheck pointers_to_here_check_for_value =
@@ -162,6 +164,7 @@ class MacroAssembler: public Assembler {
       int offset,
       Register value,
       Register scratch,
+      SaveFPRegsMode save_fp,
       RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET,
       SmiCheck smi_check = INLINE_SMI_CHECK,
       PointersToHereCheck pointers_to_here_check_for_value =
@@ -170,6 +173,7 @@ class MacroAssembler: public Assembler {
                      offset + kHeapObjectTag,
                      value,
                      scratch,
+                     save_fp,
                      remembered_set_action,
                      smi_check,
                      pointers_to_here_check_for_value);
@@ -185,6 +189,7 @@ class MacroAssembler: public Assembler {
       Register array,
       Register value,
       Register index,
+      SaveFPRegsMode save_fp,
       RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET,
       SmiCheck smi_check = INLINE_SMI_CHECK,
       PointersToHereCheck pointers_to_here_check_for_value =
@@ -199,6 +204,7 @@ class MacroAssembler: public Assembler {
       Register object,
       Register address,
       Register value,
+      SaveFPRegsMode save_fp,
       RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET,
       SmiCheck smi_check = INLINE_SMI_CHECK,
       PointersToHereCheck pointers_to_here_check_for_value =
@@ -211,7 +217,8 @@ class MacroAssembler: public Assembler {
       Register object,
       Handle<Map> map,
       Register scratch1,
-      Register scratch2);
+      Register scratch2,
+      SaveFPRegsMode save_fp);
 
   // ---------------------------------------------------------------------------
   // Debugger Support
@@ -226,14 +233,14 @@ class MacroAssembler: public Assembler {
   // arguments in register eax and sets up the number of arguments in
   // register edi and the pointer to the first argument in register
   // esi.
-  void EnterExitFrame();
+  void EnterExitFrame(bool save_doubles);
 
   void EnterApiExitFrame(int argc);
 
   // Leave the current exit frame. Expects the return value in
   // register eax:edx (untouched) and the pointer to the first
   // argument in register esi.
-  void LeaveExitFrame();
+  void LeaveExitFrame(bool save_doubles);
 
   // Leave the current exit frame. Expects the return value in
   // register eax (untouched).
@@ -435,8 +442,13 @@ class MacroAssembler: public Assembler {
   // FCmp is similar to integer cmp, but requires unsigned
   // jcc instructions (je, ja, jae, jb, jbe, je, and jz).
   void FCmp();
+  void FXamMinusZero();
+  void FXamSign();
+  void X87CheckIA();
+  void X87SetRC(int rc);
 
   void ClampUint8(Register reg);
+  void ClampTOSToUint8(Register result_reg);
 
   void SlowTruncateToI(Register result_reg, Register input_reg,
       int offset = HeapNumber::kValueOffset - kHeapObjectTag);
@@ -717,14 +729,19 @@ class MacroAssembler: public Assembler {
   void StubReturn(int argc);
 
   // Call a runtime routine.
-  void CallRuntime(const Runtime::Function* f, int num_arguments);
-  // Convenience function: Same as above, but takes the fid instead.
-  void CallRuntime(Runtime::FunctionId id) {
+  void CallRuntime(const Runtime::Function* f,
+                   int num_arguments,
+                   SaveFPRegsMode save_doubles = kDontSaveFPRegs);
+  void CallRuntimeSaveDoubles(Runtime::FunctionId id) {
     const Runtime::Function* function = Runtime::FunctionForId(id);
-    CallRuntime(function, function->nargs);
+    CallRuntime(function, function->nargs, kSaveFPRegs);
   }
-  void CallRuntime(Runtime::FunctionId id, int num_arguments) {
-    CallRuntime(Runtime::FunctionForId(id), num_arguments);
+
+  // Convenience function: Same as above, but takes the fid instead.
+  void CallRuntime(Runtime::FunctionId id,
+                   int num_arguments,
+                   SaveFPRegsMode save_doubles = kDontSaveFPRegs) {
+    CallRuntime(Runtime::FunctionForId(id), num_arguments, save_doubles);
   }
 
   // Convenience function: call an external reference.
@@ -956,7 +973,7 @@ class MacroAssembler: public Assembler {
                       const CallWrapper& call_wrapper = NullCallWrapper());
 
   void EnterExitFramePrologue();
-  void EnterExitFrameEpilogue(int argc);
+  void EnterExitFrameEpilogue(int argc, bool save_doubles);
 
   void LeaveExitFrameEpilogue(bool restore_context);