X64 Crankshaft: Implement LCallFunction.

Review URL: http://codereview.chromium.org/6529052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6825 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/x64/lithium-codegen-x64.cc

@@ -2142,7 +2142,13 @@ void LCodeGen::DoCallNamed(LCallNamed* instr) {
 
 
 void LCodeGen::DoCallFunction(LCallFunction* instr) {
-  Abort("Unimplemented: %s", "DoCallFunction");
+  ASSERT(ToRegister(instr->context()).is(rsi));
+  ASSERT(ToRegister(instr->result()).is(rax));
+
+  int arity = instr->arity();
+  CallFunctionStub stub(arity, NOT_IN_LOOP, RECEIVER_MIGHT_BE_VALUE);
+  CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
+  __ Drop(1);
 }
 
 

src/x64/lithium-x64.h

@@ -1313,11 +1313,16 @@ class LCallNamed: public LTemplateInstruction<1, 0, 0> {
 };
 
 
-class LCallFunction: public LTemplateInstruction<1, 0, 0> {
+class LCallFunction: public LTemplateInstruction<1, 1, 0> {
  public:
+  explicit LCallFunction(LOperand* context) {
+    inputs_[0] = context;
+  }
+
   DECLARE_CONCRETE_INSTRUCTION(CallFunction, "call-function")
   DECLARE_HYDROGEN_ACCESSOR(CallFunction)
 
+  LOperand* context() { return inputs_[0]; }
   int arity() const { return hydrogen()->argument_count() - 2; }
 };