LCodeGen::CallKnownFunction gets the function in register.

src/ia32/lithium-codegen-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 3389 matching lines @@
 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) {
   DCHECK(ToRegister(instr->context()).is(esi));
   __ push(esi);  // The context is the first argument.
   __ push(Immediate(instr->hydrogen()->pairs()));
   __ push(Immediate(Smi::FromInt(instr->hydrogen()->flags())));
   CallRuntime(Runtime::kDeclareGlobals, 3, instr);
 }
 
 
 void LCodeGen::CallKnownFunction(Handle<JSFunction> function,
-                                 int formal_parameter_count,
-                                 int arity,
-                                 LInstruction* instr,
-                                 EDIState edi_state) {
+                                 int formal_parameter_count, int arity,
+                                 LInstruction* instr) {
   bool dont_adapt_arguments =
       formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel;
   bool can_invoke_directly =
       dont_adapt_arguments || formal_parameter_count == arity;
 
+  Register function_reg = edi;
+
   if (can_invoke_directly) {
-    if (edi_state == EDI_UNINITIALIZED) {
-      __ LoadHeapObject(edi, function);
-    }
-
     // Change context.
-    __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
+    __ mov(esi, FieldOperand(function_reg, JSFunction::kContextOffset));
 
     // Set eax to arguments count if adaption is not needed. Assumes that eax
     // is available to write to at this point.
     if (dont_adapt_arguments) {
       __ mov(eax, arity);
     }
 
     // Invoke function directly.
     if (function.is_identical_to(info()->closure())) {
       __ CallSelf();
     } else {
-      __ call(FieldOperand(edi, JSFunction::kCodeEntryOffset));
+      __ call(FieldOperand(function_reg, JSFunction::kCodeEntryOffset));
     }
     RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT);
   } else {
     // We need to adapt arguments.
     LPointerMap* pointers = instr->pointer_map();
     SafepointGenerator generator(
         this, pointers, Safepoint::kLazyDeopt);
     ParameterCount count(arity);
     ParameterCount expected(formal_parameter_count);
-    __ InvokeFunction(function, expected, count, CALL_FUNCTION, generator);
+    __ InvokeFunction(function_reg, expected, count, CALL_FUNCTION, generator);
   }
 }
 
 
 void LCodeGen::DoTailCallThroughMegamorphicCache(
     LTailCallThroughMegamorphicCache* instr) {
   Register receiver = ToRegister(instr->receiver());
   Register name = ToRegister(instr->name());
   DCHECK(receiver.is(LoadDescriptor::ReceiverRegister()));
   DCHECK(name.is(LoadDescriptor::NameRegister()));
@@ skipping 471 matching lines @@
   Handle<JSFunction> known_function = instr->hydrogen()->known_function();
   if (known_function.is_null()) {
     LPointerMap* pointers = instr->pointer_map();
     SafepointGenerator generator(
         this, pointers, Safepoint::kLazyDeopt);
     ParameterCount count(instr->arity());
     __ InvokeFunction(edi, count, CALL_FUNCTION, generator);
   } else {
     CallKnownFunction(known_function,
                       instr->hydrogen()->formal_parameter_count(),
-                      instr->arity(),
-                      instr,
-                      EDI_CONTAINS_TARGET);
+                      instr->arity(), instr);
   }
 }
 
 
 void LCodeGen::DoCallFunction(LCallFunction* instr) {
   DCHECK(ToRegister(instr->context()).is(esi));
   DCHECK(ToRegister(instr->function()).is(edi));
   DCHECK(ToRegister(instr->result()).is(eax));
 
   int arity = instr->arity();
@@ skipping 1790 matching lines @@
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32