X64 Crankshaft: Implement CallKeyed in optimizing compiler.

Review URL: http://codereview.chromium.org/6541069

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6897 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/x64/lithium-codegen-x64.cc

@@ -2353,7 +2353,12 @@ void LCodeGen::DoUnaryMathOperation(LUnaryMathOperation* instr) {
 
 
 void LCodeGen::DoCallKeyed(LCallKeyed* instr) {
-  Abort("Unimplemented: %s", "DoCallKeyed");
+  ASSERT(ToRegister(instr->key()).is(rcx));
+  ASSERT(ToRegister(instr->result()).is(rax));
+
+  int arity = instr->arity();
+  Handle<Code> ic = StubCache::ComputeKeyedCallInitialize(arity, NOT_IN_LOOP);
+  CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 

src/x64/lithium-x64.cc

@@ -297,7 +297,7 @@ void LLoadContextSlot::PrintDataTo(StringStream* stream) {
 
 
 void LCallKeyed::PrintDataTo(StringStream* stream) {
-  stream->Add("[ecx] #%d / ", arity());
+  stream->Add("[rcx] #%d / ", arity());
 }
 
 
@@ -1216,8 +1216,11 @@ LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) {
 
 
 LInstruction* LChunkBuilder::DoCallKeyed(HCallKeyed* instr) {
-  Abort("Unimplemented: %s", "DoCallKeyed");
-  return NULL;
+  ASSERT(instr->key()->representation().IsTagged());
+  LOperand* key = UseFixed(instr->key(), rcx);
+  argument_count_ -= instr->argument_count();
+  LCallKeyed* result = new LCallKeyed(key);
+  return MarkAsCall(DefineFixed(result, rax), instr);
 }
 
 

src/x64/lithium-x64.h

@@ -1295,6 +1295,8 @@ class LCallKeyed: public LTemplateInstruction<1, 1, 0> {
   DECLARE_CONCRETE_INSTRUCTION(CallKeyed, "call-keyed")
   DECLARE_HYDROGEN_ACCESSOR(CallKeyed)
 
+  LOperand* key() { return inputs_[0]; }
+
   virtual void PrintDataTo(StringStream* stream);
 
   int arity() const { return hydrogen()->argument_count() - 1; }