Reland arguments access support for inlined functions (r11109,r11118).

src/ia32/lithium-codegen-ia32.cc

 // Copyright 2012 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 2525 matching lines @@
   ASSERT(ToRegister(instr->key()).is(eax));
 
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) {
   Register result = ToRegister(instr->result());
 
-  // Check for arguments adapter frame.
-  Label done, adapted;
-  __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset));
-  __ mov(result, Operand(result, StandardFrameConstants::kContextOffset));
-  __ cmp(Operand(result),
-         Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
-  __ j(equal, &adapted, Label::kNear);
+  if (instr->from_inlined()) {
+    __ lea(result, Operand(esp, -2 * kPointerSize));
+  } else {
+    // Check for arguments adapter frame.
+    Label done, adapted;
+    __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset));
+    __ mov(result, Operand(result, StandardFrameConstants::kContextOffset));
+    __ cmp(Operand(result),
+           Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
+    __ j(equal, &adapted, Label::kNear);
 
-  // No arguments adaptor frame.
-  __ mov(result, Operand(ebp));
-  __ jmp(&done, Label::kNear);
+    // No arguments adaptor frame.
+    __ mov(result, Operand(ebp));
+    __ jmp(&done, Label::kNear);
 
-  // Arguments adaptor frame present.
-  __ bind(&adapted);
-  __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset));
+    // Arguments adaptor frame present.
+    __ bind(&adapted);
+    __ mov(result, Operand(ebp, StandardFrameConstants::kCallerFPOffset));
 
-  // Result is the frame pointer for the frame if not adapted and for the real
-  // frame below the adaptor frame if adapted.
-  __ bind(&done);
+    // Result is the frame pointer for the frame if not adapted and for the real
+    // frame below the adaptor frame if adapted.
+    __ bind(&done);
+  }
 }
 
 
 void LCodeGen::DoArgumentsLength(LArgumentsLength* instr) {
   Operand elem = ToOperand(instr->InputAt(0));
   Register result = ToRegister(instr->result());
 
   Label done;
 
   // If no arguments adaptor frame the number of arguments is fixed.
@@ skipping 101 matching lines @@
                     safepoint_generator, CALL_AS_METHOD);
 }
 
 
 void LCodeGen::DoPushArgument(LPushArgument* instr) {
   LOperand* argument = instr->InputAt(0);
   EmitPushTaggedOperand(argument);
 }
 
 
+void LCodeGen::DoDrop(LDrop* instr) {
+  __ Drop(instr->count());
+}
+
+
 void LCodeGen::DoThisFunction(LThisFunction* instr) {
   Register result = ToRegister(instr->result());
   __ LoadHeapObject(result, instr->hydrogen()->closure());
 }
 
 
 void LCodeGen::DoContext(LContext* instr) {
   Register result = ToRegister(instr->result());
   __ mov(result, Operand(ebp, StandardFrameConstants::kContextOffset));
 }
@@ skipping 2299 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32