Merge r4254 to trunk.

src/x64/codegen-x64.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 9087 matching lines @@
 Handle<Code> GetBinaryOpStub(int key, BinaryOpIC::TypeInfo type_info) {
   GenericBinaryOpStub stub(key, type_info);
   return stub.GetCode();
 }
 
 
 int CompareStub::MinorKey() {
   // Encode the three parameters in a unique 16 bit value. To avoid duplicate
   // stubs the never NaN NaN condition is only taken into account if the
   // condition is equals.
-  ASSERT(static_cast<unsigned>(cc_) < (1 << 13));
+  ASSERT(static_cast<unsigned>(cc_) < (1 << 14));
   return ConditionField::encode(static_cast<unsigned>(cc_))
          | StrictField::encode(strict_)
-         | NeverNanNanField::encode(cc_ == equal ? never_nan_nan_ : false)
-         | IncludeNumberCompareField::encode(include_number_compare_);
+         | NeverNanNanField::encode(cc_ == equal ? never_nan_nan_ : false);
 }
 
 
-// Unfortunately you have to run without snapshots to see most of these
-// names in the profile since most compare stubs end up in the snapshot.
 const char* CompareStub::GetName() {
-  if (name_ != NULL) return name_;
-  const int kMaxNameLength = 100;
-  name_ = Bootstrapper::AllocateAutoDeletedArray(kMaxNameLength);
-  if (name_ == NULL) return "OOM";
-
-  const char* cc_name;
   switch (cc_) {
-    case less: cc_name = "LT"; break;
-    case greater: cc_name = "GT"; break;
-    case less_equal: cc_name = "LE"; break;
-    case greater_equal: cc_name = "GE"; break;
-    case equal: cc_name = "EQ"; break;
-    case not_equal: cc_name = "NE"; break;
-    default: cc_name = "UnknownCondition"; break;
+    case less: return "CompareStub_LT";
+    case greater: return "CompareStub_GT";
+    case less_equal: return "CompareStub_LE";
+    case greater_equal: return "CompareStub_GE";
+    case not_equal: {
+      if (strict_) {
+        if (never_nan_nan_) {
+          return "CompareStub_NE_STRICT_NO_NAN";
+        } else {
+          return "CompareStub_NE_STRICT";
+        }
+      } else {
+        if (never_nan_nan_) {
+          return "CompareStub_NE_NO_NAN";
+        } else {
+          return "CompareStub_NE";
+        }
+      }
+    }
+    case equal: {
+      if (strict_) {
+        if (never_nan_nan_) {
+          return "CompareStub_EQ_STRICT_NO_NAN";
+        } else {
+          return "CompareStub_EQ_STRICT";
+        }
+      } else {
+        if (never_nan_nan_) {
+          return "CompareStub_EQ_NO_NAN";
+        } else {
+          return "CompareStub_EQ";
+        }
+      }
+    }
+    default: return "CompareStub";
   }
-
-  const char* strict_name = "";
-  if (strict_ && (cc_ == equal || cc_ == not_equal)) {
-    strict_name = "_STRICT";
-  }
-
-  const char* never_nan_nan_name = "";
-  if (never_nan_nan_ && (cc_ == equal || cc_ == not_equal)) {
-    never_nan_nan_name = "_NO_NAN";
-  }
-
-  const char* include_number_compare_name = "";
-  if (!include_number_compare_) {
-    include_number_compare_name = "_NO_NUMBER";
-  }
-
-  OS::SNPrintF(Vector<char>(name_, kMaxNameLength),
-               "CompareStub_%s%s%s%s",
-               cc_name,
-               strict_name,
-               never_nan_nan_name,
-               include_number_compare_name);
-  return name_;
 }
 
 
 void StringAddStub::Generate(MacroAssembler* masm) {
   Label string_add_runtime;
 
   // Load the two arguments.
   __ movq(rax, Operand(rsp, 2 * kPointerSize));  // First argument.
   __ movq(rdx, Operand(rsp, 1 * kPointerSize));  // Second argument.
 
@@ skipping 824 matching lines @@
   // Call the function from C++.
   return FUNCTION_CAST<ModuloFunction>(buffer);
 }
 
 #endif
 
 
 #undef __
 
 } }  // namespace v8::internal