[Interpreter] Push BytecodeArray onto interpreted stack frames.

src/mips/builtins-mips.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_MIPS
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 957 matching lines @@
 // frames.h for its layout.
 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
   // 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(ra, fp, cp, a1);
   __ Addu(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
 
-  // Push new.target, dispatch table pointer and zero for bytecode array offset.
-  __ li(a0, Operand(ExternalReference::interpreter_dispatch_table_address(
-                masm->isolate())));
-  __ Push(a3, a0, zero_reg);
-
   // Get the bytecode array from the function object and load the pointer to the
   // first entry into kInterpreterBytecodeRegister.
   __ lw(a0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
   __ lw(kInterpreterBytecodeArrayRegister,
         FieldMemOperand(a0, SharedFunctionInfo::kFunctionDataOffset));
 
   if (FLAG_debug_code) {
     // Check function data field is actually a BytecodeArray object.
     __ SmiTst(kInterpreterBytecodeArrayRegister, t0);
     __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry, t0,
               Operand(zero_reg));
     __ GetObjectType(kInterpreterBytecodeArrayRegister, t0, t0);
     __ Assert(eq, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry, t0,
               Operand(BYTECODE_ARRAY_TYPE));
   }
 
+  // Push new.target, bytecode array and zero for bytecode array offset.
+  __ Push(a3, kInterpreterBytecodeArrayRegister, zero_reg);
+
   // Allocate the local and temporary register file on the stack.
   {
     // Load frame size from the BytecodeArray object.
     __ lw(t0, FieldMemOperand(kInterpreterBytecodeArrayRegister,
                               BytecodeArray::kFrameSizeOffset));
 
     // Do a stack check to ensure we don't go over the limit.
     Label ok;
     __ Subu(t1, sp, Operand(t0));
     __ LoadRoot(a2, Heap::kRealStackLimitRootIndex);
@@ skipping 20 matching lines @@
   //  - Support profiler (specifically profiling_counter).
   //  - Call ProfileEntryHookStub when isolate has a function_entry_hook.
   //  - Code aging of the BytecodeArray object.
 
   // Load bytecode offset and dispatch table into registers.
   __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
   __ Addu(kInterpreterRegisterFileRegister, fp,
           Operand(InterpreterFrameConstants::kRegisterFilePointerFromFp));
   __ li(kInterpreterBytecodeOffsetRegister,
         Operand(BytecodeArray::kHeaderSize - kHeapObjectTag));
-  __ lw(kInterpreterDispatchTableRegister,
-        MemOperand(fp, InterpreterFrameConstants::kDispatchTableFromFp));
+  __ li(kInterpreterDispatchTableRegister,
+        Operand(ExternalReference::interpreter_dispatch_table_address(
+            masm->isolate())));
 
   // Dispatch to the first bytecode handler for the function.
   __ Addu(a0, kInterpreterBytecodeArrayRegister,
           kInterpreterBytecodeOffsetRegister);
   __ lbu(a0, MemOperand(a0));
   __ Lsa(at, kInterpreterDispatchTableRegister, a0, kPointerSizeLog2);
   __ lw(at, MemOperand(at));
   // TODO(rmcilroy): Make dispatch table point to code entrys to avoid untagging
   // and header removal.
   __ Addu(at, at, Operand(Code::kHeaderSize - kHeapObjectTag));
@@ skipping 92 matching lines @@
   __ li(kInterpreterDispatchTableRegister,
         Operand(ExternalReference::interpreter_dispatch_table_address(
             masm->isolate())));
 
   // Get the context from the frame.
   __ lw(kContextRegister,
         MemOperand(kInterpreterRegisterFileRegister,
                    InterpreterFrameConstants::kContextFromRegisterPointer));
 
   // Get the bytecode array pointer from the frame.
-  __ lw(a1,
-        MemOperand(kInterpreterRegisterFileRegister,
-                   InterpreterFrameConstants::kFunctionFromRegisterPointer));
-  __ lw(a1, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
-  __ lw(kInterpreterBytecodeArrayRegister,
-        FieldMemOperand(a1, SharedFunctionInfo::kFunctionDataOffset));
+  __ lw(
+      kInterpreterBytecodeArrayRegister,
+      MemOperand(kInterpreterRegisterFileRegister,
+                 InterpreterFrameConstants::kBytecodeArrayFromRegisterPointer));
 
   if (FLAG_debug_code) {
     // Check function data field is actually a BytecodeArray object.
     __ SmiTst(kInterpreterBytecodeArrayRegister, at);
     __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry, at,
               Operand(zero_reg));
     __ GetObjectType(kInterpreterBytecodeArrayRegister, a1, a1);
     __ Assert(eq, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry, a1,
               Operand(BYTECODE_ARRAY_TYPE));
   }
@@ skipping 1587 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS