[Interpreter] Push BytecodeArray onto interpreted stack frames.

src/ia32/builtins-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.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 528 matching lines @@
   // Open a frame scope to indicate that there is a frame on the stack.  The
   // MANUAL indicates that the scope shouldn't actually generate code to set up
   // the frame (that is done below).
   FrameScope frame_scope(masm, StackFrame::MANUAL);
   __ push(ebp);  // Caller's frame pointer.
   __ mov(ebp, esp);
   __ push(esi);  // Callee's context.
   __ push(edi);  // Callee's JS function.
   __ push(edx);  // Callee's new target.
 
-  // Push dispatch table pointer.
-  __ mov(eax, Immediate(ExternalReference::interpreter_dispatch_table_address(
-                  masm->isolate())));
-  __ push(eax);
-  // Push zero for bytecode array offset.
-  __ push(Immediate(0));
-
   // Get the bytecode array from the function object and load the pointer to the
   // first entry into edi (InterpreterBytecodeRegister).
   __ mov(eax, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
   __ mov(kInterpreterBytecodeArrayRegister,
          FieldOperand(eax, SharedFunctionInfo::kFunctionDataOffset));
 
   if (FLAG_debug_code) {
     // Check function data field is actually a BytecodeArray object.
     __ AssertNotSmi(kInterpreterBytecodeArrayRegister);
     __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE,
                      eax);
     __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
   }
 
+  // Push bytecode array.
+  __ push(kInterpreterBytecodeArrayRegister);
+  // Push zero for bytecode array offset.
+  __ push(Immediate(0));
+
   // Allocate the local and temporary register file on the stack.
   {
     // Load frame size from the BytecodeArray object.
     __ mov(ebx, FieldOperand(kInterpreterBytecodeArrayRegister,
                              BytecodeArray::kFrameSizeOffset));
 
     // Do a stack check to ensure we don't go over the limit.
     Label ok;
     __ mov(ecx, esp);
     __ sub(ecx, ebx);
@@ skipping 25 matching lines @@
   //  - Code aging of the BytecodeArray object.
 
   // Load accumulator, register file, bytecode offset, dispatch table into
   // registers.
   __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
   __ mov(kInterpreterRegisterFileRegister, ebp);
   __ add(kInterpreterRegisterFileRegister,
          Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp));
   __ mov(kInterpreterBytecodeOffsetRegister,
          Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag));
-  __ mov(ebx, Operand(ebp, InterpreterFrameConstants::kDispatchTableFromFp));
+  __ mov(ebx, Immediate(ExternalReference::interpreter_dispatch_table_address(
+                  masm->isolate())));
 
   // Push dispatch table as a stack located parameter to the bytecode handler.
   DCHECK_EQ(-1, kInterpreterDispatchTableSpillSlot);
   __ push(ebx);
 
   // Dispatch to the first bytecode handler for the function.
   __ movzx_b(eax, Operand(kInterpreterBytecodeArrayRegister,
                           kInterpreterBytecodeOffsetRegister, times_1, 0));
   __ mov(ebx, Operand(ebx, eax, times_pointer_size, 0));
   // Restore undefined_value in accumulator (eax)
@@ skipping 119 matching lines @@
 }
 
 
 static void Generate_EnterBytecodeDispatch(MacroAssembler* masm) {
   // Initialize register file register.
   __ mov(kInterpreterRegisterFileRegister, ebp);
   __ add(kInterpreterRegisterFileRegister,
          Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp));
 
   // Get the bytecode array pointer from the frame.
-  __ mov(ebx, Operand(kInterpreterRegisterFileRegister,
-                      InterpreterFrameConstants::kFunctionFromRegisterPointer));
-  __ mov(ebx, FieldOperand(ebx, JSFunction::kSharedFunctionInfoOffset));
   __ mov(kInterpreterBytecodeArrayRegister,
-         FieldOperand(ebx, SharedFunctionInfo::kFunctionDataOffset));
+         Operand(kInterpreterRegisterFileRegister,
+                 InterpreterFrameConstants::kBytecodeArrayFromRegisterPointer));
 
   if (FLAG_debug_code) {
     // Check function data field is actually a BytecodeArray object.
     __ AssertNotSmi(kInterpreterBytecodeArrayRegister);
     __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE,
                      ebx);
     __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
   }
 
   // Get the target bytecode offset from the frame.
@@ skipping 2002 matching lines @@
 
   __ bind(&ok);
   __ ret(0);
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32