Direct call C++ functions

src/x64/codegen-x64.cc

Index: src/x64/codegen-x64.cc
===================================================================
--- src/x64/codegen-x64.cc	(revision 3911)
+++ src/x64/codegen-x64.cc	(working copy)
@@ -6304,7 +6304,7 @@
   __ push(rsi);
   __ push(rdx);
   __ push(rcx);  // Restore return address.
-  __ TailCallRuntime(ExternalReference(Runtime::kNewClosure), 2, 1);
+  __ TailCallRuntime(Runtime::kNewClosure, 2, 1);
 }
 
 
@@ -6346,7 +6346,7 @@
 
   // Need to collect. Call into runtime system.
   __ bind(&gc);
-  __ TailCallRuntime(ExternalReference(Runtime::kNewContext), 1, 1);
+  __ TailCallRuntime(Runtime::kNewContext, 1, 1);
 }
 
 
@@ -6402,8 +6402,7 @@
   __ ret(3 * kPointerSize);
 
   __ bind(&slow_case);
-  ExternalReference runtime(Runtime::kCreateArrayLiteralShallow);
-  __ TailCallRuntime(runtime, 3, 1);
+  __ TailCallRuntime(Runtime::kCreateArrayLiteralShallow, 3, 1);
 }
 
 
@@ -6762,10 +6761,10 @@
   // time or if regexp entry in generated code is turned off runtime switch or
   // at compilation.
 #ifndef V8_NATIVE_REGEXP
-  __ TailCallRuntime(ExternalReference(Runtime::kRegExpExec), 4, 1);
+  __ TailCallRuntime(Runtime::kRegExpExec, 4, 1);
 #else  // V8_NATIVE_REGEXP
   if (!FLAG_regexp_entry_native) {
-    __ TailCallRuntime(ExternalReference(Runtime::kRegExpExec), 4, 1);
+    __ TailCallRuntime(Runtime::kRegExpExec, 4, 1);
     return;
   }
 
@@ -7109,7 +7108,7 @@
 
   // Do the runtime call to execute the regexp.
   __ bind(&runtime);
-  __ TailCallRuntime(ExternalReference(Runtime::kRegExpExec), 4, 1);
+  __ TailCallRuntime(Runtime::kRegExpExec, 4, 1);
 #endif  // V8_NATIVE_REGEXP
 }
 
@@ -7520,7 +7519,7 @@
 
   // Do the runtime call to allocate the arguments object.
   __ bind(&runtime);
-  __ TailCallRuntime(ExternalReference(Runtime::kNewArgumentsFast), 3, 1);
+  __ TailCallRuntime(Runtime::kNewArgumentsFast, 3, 1);
 }
 
 
@@ -7577,9 +7576,7 @@
   __ pop(rbx);  // Return address.
   __ push(rdx);
   __ push(rbx);
-  Runtime::Function* f =
-      Runtime::FunctionForId(Runtime::kGetArgumentsProperty);
-  __ TailCallRuntime(ExternalReference(f), 1, f->result_size);
+  __ TailCallRuntime(Runtime::kGetArgumentsProperty, 1, 1);
 }
 
 
@@ -8068,8 +8065,7 @@
   __ push(rax);
 
   // Do tail-call to runtime routine.
-  Runtime::Function* f = Runtime::FunctionForId(Runtime::kStackGuard);
-  __ TailCallRuntime(ExternalReference(f), 1, f->result_size);
+  __ TailCallRuntime(Runtime::kStackGuard, 1, 1);
 }
 
 
@@ -9067,7 +9063,7 @@
 
   // Just jump to runtime to add the two strings.
   __ bind(&string_add_runtime);
-  __ TailCallRuntime(ExternalReference(Runtime::kStringAdd), 2, 1);
+  __ TailCallRuntime(Runtime::kStringAdd, 2, 1);
 }
 
 
@@ -9261,7 +9257,7 @@
 
   // Just jump to runtime to create the sub string.
   __ bind(&runtime);
-  __ TailCallRuntime(ExternalReference(Runtime::kSubString), 3, 1);
+  __ TailCallRuntime(Runtime::kSubString, 3, 1);
 }
 
 
@@ -9381,7 +9377,7 @@
   // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater)
   // tagged as a small integer.
   __ bind(&runtime);
-  __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1);
+  __ TailCallRuntime(Runtime::kStringCompare, 2, 1);
 }
 
 #undef __